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WO2007039659A1 - Double-layer water treatment pellet - Google Patents

Double-layer water treatment pellet Download PDF

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Publication number
WO2007039659A1
WO2007039659A1 PCT/ES2006/000552 ES2006000552W WO2007039659A1 WO 2007039659 A1 WO2007039659 A1 WO 2007039659A1 ES 2006000552 W ES2006000552 W ES 2006000552W WO 2007039659 A1 WO2007039659 A1 WO 2007039659A1
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WO
WIPO (PCT)
Prior art keywords
layer
water
shock
tablet
substances
Prior art date
Application number
PCT/ES2006/000552
Other languages
Spanish (es)
French (fr)
Inventor
M. Cristina c/o Aragonesas Industrias y Energía S.A. USON BORRAZ (Química Básica y Tratamiento de Aguas) C/ Serrablo, 102
Javier Trabal Pujadas
Jose Luis HERNANDEZ NUÑO
Original Assignee
Aragonesas Industrias Y Energia, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aragonesas Industrias Y Energia, S.A. filed Critical Aragonesas Industrias Y Energia, S.A.
Publication of WO2007039659A1 publication Critical patent/WO2007039659A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/685—Devices for dosing the additives
    • C02F1/688—Devices in which the water progressively dissolves a solid compound
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/42—Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/14—Additives which dissolves or releases substances when predefined environmental conditions are reached, e.g. pH or temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents

Definitions

  • the present invention relates to a humbucker "layer treatment water preferably for use in cleaning and disinfecting the water of swimming pools and other water compound.
  • the tablets for the treatment and disinfection of the water of swimming pools and aquatic enclosures that are currently marketed are of two types: on the one hand there are slow-dissolving tablets, which are used for more or less prolonged treatments and on the other there are fast-dissolving tablets They serve for shock treatments.
  • the type of tablet that is most widespread in the market is that of slow dissolution. These tablets are mainly useful for carrying out the water treatments of swimming pools and other aquatic enclosures continuously, releasing a disinfectant agent slowly and in a controlled manner.
  • the use of slow-dissolving tablets that provide chlorine as a water disinfectant is widely used for its effectiveness in treating water in a pool.
  • the most common active ingredient or chlorine donor substance in the tablets is trichloroisocyanuric acid due to its high chlorine content, stability and limited solubility, which gives it the properties of ease of transport and storage as well as slow dissolution. and controlled desirable in this type of pills.
  • Pills containing an active disinfectant ingredient such as trichloroisocyanuric acid are available and also contain other algicidal substances, flocculants, ion sequestrants responsible for water hardness, etc. These substances in solid state and forming part of the tablet dissolve in a controlled manner together with the trichloroisocyanuric acid providing a comprehensive comprehensive treatment to the water in a prolonged manner. There are situations in which a disinfectant shock treatment is convenient in a pool.
  • patent FR 2575637 of 1985 ', which describes a process for the preparation of chlorinated effervescent tablets for use in disinfection formed by a chloroisocyanuric derivative, sodium bicarbonate, an organic acid and a tablet forming adjuvant.
  • patent ES 2109871 Bl of 1998, which describes a chlorinated disinfectant product for general cleaning, obtained on the basis of a quaternary mixture of sodium dichloroisocyanurate, together with boric acid, citric acid and sodium bicarbonate, being able to be This product patterned.
  • the present invention provides a double layer tablet for the water treatment of swimming pools and other aquatic environments, where the two layers that make up the tablet have different dissolution rates in aqueous media as well as different properties that affect the quality of the water to be treated.
  • One of the layers (mentioned as a maintenance layer) is characterized by having a low water solubility and, consequently, a dissolution rate in the slow aqueous medium, the majority component being trichloroisocyanuric acid that can be accompanied by other substances Algaecides, flocculants, ion sequestrants responsible for water hardness, etc., as well as some adjuvant product of the patterning process. Among the latter are used: boric acid, alkaline and alkaline earth stearates.
  • the other layer (cited as a shock layer) is characterized in that, in contact with water, the material that forms it disintegrates and / or dissolves rapidly allowing the release of its components to the aqueous medium, where a chemical reaction takes place that It allows a very rapid release of chlorine and therefore a disinfectant treatment of shock from the aqueous medium.
  • the tablet will also comprise a dye.
  • the shock layer of the tablet comprises a reactive mixture based on the following components: trichloroisocyanuric acid, sodium bicarbonate and cyanuric acid,
  • the shock layer of the tablet comprises a reactive mixture based on the following components: trichloroisocyanuric acid, sodium bicarbonate, cyanuric acid and hydrated sodium dichloroisocyanurate, that is, with a degree of hydration intermediate between anhydrous sodium dichloroisocyanurate and dihydrate.
  • Other minor components of this layer can be adjuvants of the process of patching, dyes, etc.
  • the reactive mixture of the shock layer further comprises a mixture of anhydrous sodium dichloroisocyanurate and sodium dichloroisocyanurate dihydrate or a manufacturing product consisting of sodium dichloroisocyanurate with a non-established and intermediate degree of hydration between anhydrous sodium dichloroisocyanurate and the dihydrate.
  • the maintenance layer is composed of 150 grams of multifunction formulation without dye, with the formulation detailed below:
  • the shock layer consists of 50 grams of the formulation detailed below:
  • the components of the other layer are placed in the mixer once weighed and once the mixture is homogenized, it is discharged into the second feed silo.
  • the rotary machine is programmed to dose two layers, the maintenance of 150 grams and the shock machine of 50 grams. Once the lower layer is dosed, it is subjected to a prepress with a pressure of 392 kg / cm2 (5585 psi) and then the upper layer is added. The set of the two layers is pressed with a pressure of 1200 kg / cm2 (17080 psi). The tablet with the desired hardness is thus obtained, this is with a force necessary for the breaking of the tablet always above 50 kg-force and usually between 60 and 80 kg-force.
  • the 200 gram tablet is placed in the skimmer and a flow of 8 m 3 / h of water is passed through it at 20 ° C.
  • the lid is not placed to better control the dissolution rate and visually observe the behavior.
  • the tablet is weighed over time, obtaining the following results:
  • Example 2 The procedure is the same as in Example 1, taking into account that the maintenance layer has the same composition and the shock layer is formulated as follows:
  • the rotary machine is programmed to dose two layers, one of 150 grams and another of 50 grams.
  • the lower layer is dosed, it is subjected to a prepress with a pressure of 392 kg / cm2 (5585 psi) and then the upper layer is added.
  • the set of the two layers is pressed with a pressure of 1200 kg / cm 2 (17080 psi).
  • the tablet with the desired hardness is thus obtained, this is with a force necessary for the breaking of the tablet always above 50 kg-force and usually between 60 and 80 kg-force.
  • the maintenance layer has the same composition and the shock layer is formulated as follows:

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to a double-layer pellet comprising a maintenance layer and an immediate treatment layer, in which the immediate treatment layer consists of a reactive mixture and adjuvant substances, while the maintenance layer consists of a mixture of substances that maintain the quality of the water for a prolonged period in aquatic environments, such as swimming pools and water parks.

Description

PASTILLA DE DOBLE CAPA PARA TRATAMIENTO DEL AGUA Objeto de la invención DOUBLE LAYER PAD FOR WATER TREATMENT Object of the invention
La presente invención se refiere a una pastilla de doble" capa para tratamiento del agua, preferiblemente, para su utilización en la limpieza y desinfección del agua de las piscinas y cualquier otro recinto acuático. Antecedentes de la invenciónThe present invention relates to a humbucker "layer treatment water preferably for use in cleaning and disinfecting the water of swimming pools and other water compound. BACKGROUND OF THE INVENTION
Las pastillas para el tratamiento y desinfección del agua de piscinas y recintos acuáticos que se comercializan actualmente son de dos tipos : por un lado existen las pastillas de disolución lenta, que sirven para tratamientos más o menos prolongados y por otro existen las pastillas de disolución rápida que sirven para tratamientos de choque.The tablets for the treatment and disinfection of the water of swimming pools and aquatic enclosures that are currently marketed are of two types: on the one hand there are slow-dissolving tablets, which are used for more or less prolonged treatments and on the other there are fast-dissolving tablets They serve for shock treatments.
El tipo de pastilla que está más extendido en el mercado es la de disolución lenta. Estas pastillas son útiles fundamentalmente para llevar a cabo los tratamientos del agua de piscinas y otros recintos acuáticos de modo continuado, liberando un agente desinfectante de forma lenta y controlada. El uso de pastillas de disolución lenta que aportan cloro como agente desinfectante del agua está ampliamente extendido por su eficacia en el tratamiento del agua en una piscina. Además el ingrediente activo o sustancia donante de cloro más habitual de las pastillas es el ácido tricloroisocianúrico debido a su gran contenido en cloro, su estabilidad y su solubilidad limitada, lo que le confiere las propiedades de facilidad de transporte y almacenamiento así como de disolución lenta y controlada deseables en este tipo de pastillas.The type of tablet that is most widespread in the market is that of slow dissolution. These tablets are mainly useful for carrying out the water treatments of swimming pools and other aquatic enclosures continuously, releasing a disinfectant agent slowly and in a controlled manner. The use of slow-dissolving tablets that provide chlorine as a water disinfectant is widely used for its effectiveness in treating water in a pool. In addition, the most common active ingredient or chlorine donor substance in the tablets is trichloroisocyanuric acid due to its high chlorine content, stability and limited solubility, which gives it the properties of ease of transport and storage as well as slow dissolution. and controlled desirable in this type of pills.
Además de la desinfección del agua de las piscinas y demás recintos acuáticos, hay que tener en cuenta que es muy importante el control de algunos aspectos importantes como la dureza del agua, la proliferación de algas, la turbiedad del agua, etc. Para que el tratamiento global de la piscina resulte más cómodo a los usuarios se comercializan pastillas que contienen un ingrediente activo desinfectante como el ácido tricloroisocianúrico y además contienen otras sustancias algicidas, floculantes, secuestrantes de iones responsables de la dureza del agua, etc. Estas sustancias en estado sólido y formando parte de la pastilla se disuelven controladamente junto con el ácido tricloroisocianúrico proporcionando un tratamiento integral completo al agua de forma prolongada. Hay situaciones en las que en una piscina es conveniente un tratamiento desinfectante de choque. Estas situaciones aparecen con frecuencia, como por ejemplo al principio de la temporada, en caso de proliferación de algas, por tormentas, mayor afluencia inesperada de bañistas, etc.. En estos casos es necesario adicionar al agua de la piscina una sustancia donante de cloro capaz de aportar al agua la concentración de cloro demandada por la calidad del agua. En este sentido-, se han desarrollado distintas técnicas para proporcionar un producto de manejo fácil y seguro.In addition to the disinfection of water in swimming pools and other aquatic enclosures, it must be taken into account that the control of some important aspects such as water hardness, algal blooms, water turbidity, etc. is very important. For the overall treatment of The pool is more comfortable for users. Pills containing an active disinfectant ingredient such as trichloroisocyanuric acid are available and also contain other algicidal substances, flocculants, ion sequestrants responsible for water hardness, etc. These substances in solid state and forming part of the tablet dissolve in a controlled manner together with the trichloroisocyanuric acid providing a comprehensive comprehensive treatment to the water in a prolonged manner. There are situations in which a disinfectant shock treatment is convenient in a pool. These situations appear frequently, such as at the beginning of the season, in case of algal blooms, due to storms, greater unexpected influx of bathers, etc. In these cases it is necessary to add a chlorine donor substance to the pool water able to provide the concentration of chlorine demanded by water quality to the water. In this sense, different techniques have been developed to provide a safe and easy handling product.
Un ejemplo de estas técnicas es la patente US 4389318, de 1983, que describe mezclas de disolución rápida que contienen ácido tricloroisocianúrico. Estas mezclas están fundamentalmente compuestas por ácido tricloroisocianúrico y un bicarbonato de metal alcalino con o sin adición de ácido cianúrico y pueden estar comprimidas en forma de pastillas, discos, palitos, briquetas, etc., o no.An example of these techniques is US Patent 4389318 of 1983, which describes fast-dissolving mixtures containing trichloroisocyanuric acid. These mixtures are mainly composed of trichloroisocyanuric acid and an alkali metal bicarbonate with or without the addition of cyanuric acid and can be compressed in the form of tablets, discs, sticks, briquettes, etc., or not.
Otro ejemplo es la patente FR 2575637, de 1985', que describe un procedimiento para la preparación de pastillas efervescentes cloradas para uso en desinfección formadas por un derivado cloroisocianúrico, bicarbonato de sodio, un ácido orgánico y un adyuvante de formación de pastillas. De aparición más reciente es la patente ES 2109871 Bl, de 1998, que describe un producto desinfectante clorado para la limpieza general, obtenido sobre la base de una mezcla cuaternaria de dicloroisocianurato sódico, junto con ácido bórico, ácido cítrico y bicarbonato sódico, pudiendo estar este producto empastillado .Another example is patent FR 2575637, of 1985 ', which describes a process for the preparation of chlorinated effervescent tablets for use in disinfection formed by a chloroisocyanuric derivative, sodium bicarbonate, an organic acid and a tablet forming adjuvant. Of more recent appearance is the patent ES 2109871 Bl, of 1998, which describes a chlorinated disinfectant product for general cleaning, obtained on the basis of a quaternary mixture of sodium dichloroisocyanurate, together with boric acid, citric acid and sodium bicarbonate, being able to be This product patterned.
En 1976, se publicó una patente US 3873685 que describe un producto especialmente interesante para realizar tratamientos de choque seguidos de un mantenimiento prolongado de la calidad del agua en sistemas acuáticos como piscinas. Se trata de una estructura (pastilla o similar) formada por dos porciones discretas, una de ácido tricloroisocianúrico (de disolución lenta) y otra de dicloroisocianurato sódico dihidratado (de disolución rápida) comprimidas juntas.In 1976, a US patent 3873685 was published describing an especially interesting product for shock treatments followed by prolonged maintenance of water quality in aquatic systems such as swimming pools. It is a structure (tablet or similar) formed by two discrete portions, one of trichloroisocyanuric acid (slow dissolution) and another of sodium dichloroisocyanurate dihydrate (rapid dissolution) compressed together.
Existe una patente US 6863830, de 2005, que describe una pastilla de doble capa, con una capa de disolución rápida y otra de disolución lenta. La capa de disolución lenta presenta un ingrediente activo- desinfectante donor de cloro y/o bromo. La capa rápida puede llevar, entre otros ingredientes, ácido tricloroisocianúrico o dicloroisocianurato de sodio anhidro pudiendo llevar además, entre otros aditivos, un agente controlador de la disolución. Una de las limitaciones de esta patente consiste en que sólo se contempla el uso de dicloroisocianurato de sodio anhidro lo que rechaza el uso del dihidratado y de un producto hidratado con un grado de hidratación intermedio entre el anhidro y el dihidratado, el cual presenta las ventajas que se expondrán - más adelante .There is a US patent 6863830, of 2005, which describes a double layer tablet, with a fast dissolving and a slow dissolving layer. The slow dissolving layer has an active ingredient - chlorine and / or bromine donor disinfectant. The fast layer can carry, among other ingredients, trichloroisocyanuric acid or anhydrous sodium dichloroisocyanurate and can also carry, among other additives, a solution controlling agent. One of the limitations of this patent is that only the use of anhydrous sodium dichloroisocyanurate is contemplated, which rejects the use of dihydrate and a hydrated product with an intermediate degree of hydration between anhydrous and dihydrate, which has the advantages that will be exposed - later.
Descripción de la invenciónDescription of the invention
En este sentido, según un primer aspecto, la presente invención proporciona una pastilla de doble capa, para el tratamiento del agua de piscinas y otros medios acuáticos, en donde las dos capas que conforman la pastilla presentan distinta velocidad de disolución en medio acuoso así como distintas propiedades que afectan a la calidad del agua a tratar.In this sense, according to a first aspect, the present invention provides a double layer tablet for the water treatment of swimming pools and other aquatic environments, where the two layers that make up the tablet have different dissolution rates in aqueous media as well as different properties that affect the quality of the water to be treated.
Una de las capas (se citará como capa de mantenimiento) se caracteriza por presentar una baja solubilidad en agua y, en consecuencia, una velocidad de disolución en el medio acuoso lenta, siendo el componente mayoritario el ácido tricloroisocianúrico que puede ir acompañado de otras sustancias algicidas, floculantes, secuestrantes de iones responsables de la dureza del agua, etc., así como algún producto adyuvante del proceso de empastillado . Entre estos últimos se emplean: ácido bórico, estearatos alcalinos y alcalino-térreos .One of the layers (mentioned as a maintenance layer) is characterized by having a low water solubility and, consequently, a dissolution rate in the slow aqueous medium, the majority component being trichloroisocyanuric acid that can be accompanied by other substances Algaecides, flocculants, ion sequestrants responsible for water hardness, etc., as well as some adjuvant product of the patterning process. Among the latter are used: boric acid, alkaline and alkaline earth stearates.
La otra capa (se citará como capa de choque) se caracteriza porque, en contacto con el agua, el material que la conforma se disgrega y/o disuelve rápidamente permitiendo la liberación de sus componentes al medio acuoso, donde tiene lugar una reacción química que permite una liberación de cloro muy rápida y por lo tanto un tratamiento desinfectante de choque del medio acuoso.The other layer (cited as a shock layer) is characterized in that, in contact with water, the material that forms it disintegrates and / or dissolves rapidly allowing the release of its components to the aqueous medium, where a chemical reaction takes place that It allows a very rapid release of chlorine and therefore a disinfectant treatment of shock from the aqueous medium.
Opcionalmente, la pastilla comprenderá además un colorante . Según una realización de la invención, la capa de choque de la pastilla comprende una mezcla reactiva a base de los siguientes componentes: ácido tricloroisocianúrico, bicarbonato sódico y ácido cianúrico,Optionally, the tablet will also comprise a dye. According to an embodiment of the invention, the shock layer of the tablet comprises a reactive mixture based on the following components: trichloroisocyanuric acid, sodium bicarbonate and cyanuric acid,
Según otra realización de la invención, la capa de choque de la pastilla comprende una mezcla reactiva a base de los siguientes componentes: ácido tricloroisocianúrico, bicarbonato sódico, ácido cianúrico y dicloroisocianurato sódico hidratado, esto es, con un grado de hidratación intermedio entre el dicloroisocianurato sódico anhidro y el dihidratado. Otros componentes minoritarios de esta capa pueden ser adyuvantes del proceso de empastillado, colorantes, etc. Esta composición presenta una serie de propiedades que le son conferidas por la combinación de sus componentes y que se pueden resumir en los siguientes puntos:According to another embodiment of the invention, the shock layer of the tablet comprises a reactive mixture based on the following components: trichloroisocyanuric acid, sodium bicarbonate, cyanuric acid and hydrated sodium dichloroisocyanurate, that is, with a degree of hydration intermediate between anhydrous sodium dichloroisocyanurate and dihydrate. Other minor components of this layer can be adjuvants of the process of patching, dyes, etc. This composition presents a series of properties that are conferred by the combination of its components and that can be summarized in the following points:
Alta concentración de cloro conferida por el contenido en ácido tricloroisocianúrico (90% de cloro útil) .High concentration of chlorine conferred by the trichloroisocyanuric acid content (90% of useful chlorine).
Gran estabilidad de la mezcla de componentes secos que permite el almacenamiento prolongado y un fácil manejo.Great stability of the dry component mix that allows prolonged storage and easy handling.
Rápida disgregación de la mezcla comprimida cuando entra en contacto con agua debido a la efervescencia provocada por la reacción entre los componentes de la formulación, que provoca el desprendimiento de CO2.Rapid disintegration of the compressed mixture when it comes into contact with water due to the effervescence caused by the reaction between the components of the formulation, which causes the evolution of CO 2 .
Alta solubilidad del dicloroisocianurato sódico presente en la mezcla sólida cuyas partículas disgregadas en el agua se disuelven rápidamente. Alta reactividad de la mezcla de componentes en medio acuoso, según la reacción: 2Cl3C3N3O3 + H3C3N3O3 + 3 NaHCO3 → 3 NaCl2C3N3O3 + 3 CO2 + 3 H2OHigh solubility of sodium dichloroisocyanurate present in the solid mixture whose particles dissolved in water dissolve rapidly. High reactivity of the mixture of components in aqueous medium, according to the reaction: 2Cl 3 C 3 N 3 O 3 + H 3 C 3 N 3 O 3 + 3 NaHCO 3 → 3 NaCl 2 C 3 N 3 O 3 + 3 CO 2 + 3 H 2 O
Alta solubilidad de todos los productos de reacción obtenidos al reaccionar los componentes en medio acuoso.High solubility of all reaction products obtained by reacting the components in aqueous medium.
Es importante destacar que el uso de dicloroisocianurato sódico parcialmente hidratado, esto es, con un grado de hidratación no establecido e intermedio entre el dicloroisocianurato sódico anhidro y el dihidratado, presenta una ventaja en el proceso de fabricación de dicho componente, ya que así la etapa de secado no resulta crucial en el proceso de fabricación. Por un lado, el ahorro del coste necesario para un anhidrado total del producto es importante, y por otro lado, las condiciones del proceso de secado no son críticas al no precisarse un grado de hidratación determinado.It is important to note that the use of partially hydrated sodium dichloroisocyanurate, that is, with a degree of hydration not established and intermediate between anhydrous sodium dichloroisocyanurate and dihydrate, has an advantage in the process of manufacturing of said component, since thus the drying stage is not crucial in the manufacturing process. On the one hand, the cost savings necessary for a total anhydrate of the product is important, and on the other hand, the conditions of the drying process are not critical as a certain degree of hydration is not required.
Otra realización opcional consiste en que la mezcla reactiva de la capa de choque comprende además una mezcla de dicloroisocianurato sódico anhidro y dicloroisocianurato sódico dihidratado o bien un producto de fabricación consistente en dicloroisocianurato sódico con un grado de hidratación no establecido e intermedio entre el dicloroisocianurato sódico anhidro y el dihidratado.Another optional embodiment consists in that the reactive mixture of the shock layer further comprises a mixture of anhydrous sodium dichloroisocyanurate and sodium dichloroisocyanurate dihydrate or a manufacturing product consisting of sodium dichloroisocyanurate with a non-established and intermediate degree of hydration between anhydrous sodium dichloroisocyanurate and the dihydrate.
La invención será descrita ahora, sólo a título ilustrativo, por medio de los siguientes ejemplos que de ningún modo deberán ser considerados como limitativos del alcance de la invención.The invention will now be described, by way of illustration only, by means of the following examples which in no way should be considered as limiting the scope of the invention.
Ejemplos de realización Ejemplo 1:Examples of embodiment Example 1:
Se fabrican tabletas de 200 gramos, de dos capas de composición diferente cada capa. Se utiliza una máquina rotativa capaz de dosificar dos capas diferentes en composición y cantidad. La capa de mantenimiento está compuesta por 150 gramos de formulación multifunción sin colorante, con la formulación que se detalla a continuación:200 grams tablets are made, of two layers of different composition each layer. A rotary machine capable of dosing two different layers in composition and quantity is used. The maintenance layer is composed of 150 grams of multifunction formulation without dye, with the formulation detailed below:
Figure imgf000007_0001
'*' Sulfato de aluminio = producto comercial hidratado de 17-18 % de riqueza en óxido de aluminio equivalente . (**' Sulfato de cobre = producto comercial pentahidratado .
Figure imgf000007_0001
'*' Aluminum sulphate = hydrated commercial product of 17-18% rich in aluminum oxide equivalent. ( ** 'Copper sulfate = commercial product pentahydrate.
La capa de choque está compuesta por 50 gramos de la formulación que se detalla a continuación:The shock layer consists of 50 grams of the formulation detailed below:
Figure imgf000008_0001
Figure imgf000008_0001
(*)Producto directo de fabricación con un grado de hidratación^equivalente a n moléculas de agua de cristalización con n= 1.7.(*) Direct manufacturing product with a degree of hydration ^ equivalent to water crystallization molecules with n = 1.7.
El procedimiento a seguir es el siguiente: En una mezcladora se añaden los componentes una capa previamente pesados, se homogeneiza la mezcla y se descarga en uno de los dos silos de alimentación de la máquina rotativa.The procedure to follow is as follows: In a mixer the components are added a previously heavy layer, the mixture is homogenized and discharged into one of the two feed silos of the rotary machine.
Se colocan en la mezcladora los componentes de la otra capa una vez pesados y una vez homogeneizada la mezcla se descarga en el segundo silo de alimentación.The components of the other layer are placed in the mixer once weighed and once the mixture is homogenized, it is discharged into the second feed silo.
Se programa la máquina rotativa para dosificar dos capas, la de mantenimiento de 150 gramos y la de choque de 50 gramos. Una vez dosificada la capa inferior, ésta es sometida a un pre-prensado con presión de 392 kg/cm2 (5585 psi) y posteriormente se añade la capa superior. El conjunto de las dos capas se prensa con una presión de 1200 kg/cm2 (17080 psi) . Se obtiene así la tableta con la dureza deseada, esto es con una fuerza necesaria para la rotura de la pastilla siempre por encima de 50 kg-fuerza y habitualmente de entre 60 y 80 kg-fuerza.The rotary machine is programmed to dose two layers, the maintenance of 150 grams and the shock machine of 50 grams. Once the lower layer is dosed, it is subjected to a prepress with a pressure of 392 kg / cm2 (5585 psi) and then the upper layer is added. The set of the two layers is pressed with a pressure of 1200 kg / cm2 (17080 psi). The tablet with the desired hardness is thus obtained, this is with a force necessary for the breaking of the tablet always above 50 kg-force and usually between 60 and 80 kg-force.
Las dimensiones de las tabletas obtenidas se citan a continuación :The dimensions of the tablets obtained are cited below:
Figure imgf000008_0002
Figure imgf000009_0001
Figure imgf000008_0002
Figure imgf000009_0001
Se mide la solubilidad en piscina piloto de las tabletas obtenidas del siguiente modo:The solubility in the pilot pool of the tablets obtained is measured as follows:
Se coloca la tableta de 200 gramos en el skimmer y se pasa a su través un caudal de 8 m3/h de agua a 20 °C. No se coloca la tapa para controlar mejor la velocidad de disolución y observar visualmente el comportamiento.The 200 gram tablet is placed in the skimmer and a flow of 8 m 3 / h of water is passed through it at 20 ° C. The lid is not placed to better control the dissolution rate and visually observe the behavior.
Se pesa la tableta a lo largo del tiempo obteniéndose los siguientes resultados:The tablet is weighed over time, obtaining the following results:
Figure imgf000009_0002
Figure imgf000009_0002
Como puede comprobarse, al cabo de 20 minutos se ha disuelto completamente la capa rápida de la tableta. Asimismo se observa visualmente la completa consunción de la capa coloreada de azul .As you can see, after 20 minutes the fast layer of the tablet has completely dissolved. Likewise, the complete consumption of the blue colored layer is visually observed.
Ejemplo 2 :Example 2:
Se procede igual que en el ejemplo 1, teniendo en cuenta, que la capa de mantenimiento tiene la misma composición y la capa de choque está formulada de la siguiente manera:The procedure is the same as in Example 1, taking into account that the maintenance layer has the same composition and the shock layer is formulated as follows:
Figure imgf000009_0003
Igual que en el ejemplo anterior, se programa la máquina rotativa para dosificar dos capas, una de 150 gramos y otra de 50 gramos. Una vez dosificada la capa inferior, ésta es sometida a un pre-prensado con presión de 392 kg/cm2 (5585 psi) y posteriormente se añade la capa superior. El conjunto de las dos capas se prensa con una presión de 1200 kg/cm2 (17080 psi) . Se obtiene así la tableta con la dureza deseada, esto es con una fuerza necesaria para la rotura de la pastilla siempre por encima de 50 kg-fuerza y habitualmente de entre 60 y 80 kg-fuerza.
Figure imgf000009_0003
As in the previous example, the rotary machine is programmed to dose two layers, one of 150 grams and another of 50 grams. Once the lower layer is dosed, it is subjected to a prepress with a pressure of 392 kg / cm2 (5585 psi) and then the upper layer is added. The set of the two layers is pressed with a pressure of 1200 kg / cm 2 (17080 psi). The tablet with the desired hardness is thus obtained, this is with a force necessary for the breaking of the tablet always above 50 kg-force and usually between 60 and 80 kg-force.
Las dimensiones de las tabletas obtenidas se citan a continuación:The dimensions of the tablets obtained are cited below:
Figure imgf000010_0001
Figure imgf000010_0001
Se mide la solubilidad en piscina piloto de las tabletas obtenidas del mismo modo que en el ejemplo anterior obteniéndose los siguientes resultados:The solubility in the pilot pool of the tablets obtained is measured in the same manner as in the previous example, obtaining the following results:
Figure imgf000010_0002
Figure imgf000010_0002
Al cabo de 14 minutos puede comprobarse visualmente la completa consunción de la capa coloreada de azul .After 14 minutes, the complete consumption of the blue colored layer can be checked visually.
Ejemplo 3 :Example 3:
Se procede igual que los ejemplos anteriores teniendo en cuenta que la capa de mantenimiento tiene la misma composición y la capa de choque está, formulada de la siguiente manera:The same as the previous examples is carried out taking into account that the maintenance layer has the same composition and the shock layer is formulated as follows:
Componente %, en peso.Component%, by weight.
Dicloroisocianurato sódico n-hidratado (* ) 98 .5 %N-hydrated sodium dichloroisocyanurate (*) 98.5%
Ácido bórico 1. 4 %Boric acid 1. 4%
Colorante azul 0. 1 % (*) Producto directo de fabricación con un grado de hidratación equivalente a n moléculas de agua de cristalización con n= 1.7.Blue dye 0. 1% (*) Direct manufacturing product with a degree of hydration equivalent to crystallization water molecules with n = 1.7.
Se procede de la misma manera que en los ejemplos anteriores obteniendo así la tableta de las mismas características de dureza que las anteriores.Proceed in the same way as in the previous examples thus obtaining the tablet of the same hardness characteristics as the previous ones.
Las dimensiones de las tabletas obtenidas se citan a continuación:The dimensions of the tablets obtained are cited below:
Figure imgf000011_0001
Figure imgf000011_0001
Se mide la solubilidad en piscina piloto de las tabletas obtenidas del mismo modo que en los ejemplos anteriores obteniéndose los siguientes resultados :The solubility in the pilot pool of the tablets obtained is measured in the same manner as in the previous examples, obtaining the following results:
Figure imgf000011_0002
Figure imgf000011_0002
Al cabo de 25 minutos puede comprobarse visualmente la completa disolución de la capa de choque que está coloreada de azul . After 25 minutes, the complete dissolution of the shock layer that is colored blue can be visually checked.

Claims

Reivindicaciones Claims
1. Pastilla de doble capa para el tratamiento del agua, una de choque y otra de mantenimiento, capaz de liberar cloro en medio acuoso para la desinfección y el tratamiento de choque del agua, caracterizada porque una de las capas, la de mantenimiento, comprende: ácido tricloroisocianúrico; sustancias floculantes; algicidas; secuestrantes de los iones responsables de la dureza del agua y adyuvantes del proceso de empastillado y la otra capa, de tratamiento de choque, comprende: una mezcla reactiva y sustancias adyuvantes del proceso de empastillado.1. Double layer tablet for water treatment, one for shock and the other for maintenance, capable of releasing chlorine in aqueous medium for disinfection and water shock treatment, characterized in that one of the layers, the maintenance one, comprises : trichloroisocyanuric acid; flocculating substances; algaecides; sequestrants of the ions responsible for the hardness of the water and adjuvants of the patterning process and the other layer, of shock treatment, comprises: a reactive mixture and adjuvants substances of the patterning process.
2. Pastilla según la reivindicación 1, caracterizada porque además comprende un colorante . 2. Pill according to claim 1, characterized in that it further comprises a dye.
3. Pastilla según la reivindicación 1, caracterizada porque, en la capa de choque, la mezcla reactiva comprende los siguientes componentes: ácido tricloroisocianúrico, bicarbonato sódico y ácido cianúrico3. Tablet according to claim 1, characterized in that, in the shock layer, the reaction mixture comprises the following components: trichloroisocyanuric acid, sodium bicarbonate and cyanuric acid
4. Pastilla según las reivindicaciones 1 a 3, caracterizada porque, en la capa de choque, la mezcla reactiva comprende además dicloroisocianurato sódico hidratado, con un grado de hidratación comprendido entre 0,5 y 2,0.4. Pill according to claims 1 to 3, characterized in that, in the shock layer, the reaction mixture further comprises hydrated sodium dichloroisocyanurate, with a degree of hydration between 0.5 and 2.0.
5. Pastilla según la reivindicación 3, caracterizada porque comprende además sustancias adyuvantes del proceso de empastillado. 5. Pill according to claim 3, characterized in that it further comprises adjuvant substances of the packing process.
PCT/ES2006/000552 2005-10-05 2006-10-04 Double-layer water treatment pellet WO2007039659A1 (en)

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ES200502412A ES2272184B1 (en) 2005-10-05 2005-10-05 DOUBLE LAYER PAD FOR WATER TREATMENT AND DISINFECTION.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2415741A1 (en) * 2012-01-24 2013-07-26 Envasados Del Pirineo Sl Pill for integral water treatment (Machine-translation by Google Translate, not legally binding)
CN107306973A (en) * 2017-08-17 2017-11-03 山东大明消毒科技有限公司 A kind of swimming pool disinfectant and its preparation method and application

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108849873A (en) * 2018-04-20 2018-11-23 吴礼高 A kind of deodorization and disinfection piece preparation method for the disinfection of infectious clinical waste

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Publication number Priority date Publication date Assignee Title
US3873685A (en) * 1973-09-10 1975-03-25 Fmc Corp Contiguous shaped chlorine releasing structure
US4389318A (en) * 1981-03-30 1983-06-21 Olin Corporation Rapidly dissolving mixtures containing trichloroisocyanuric acid
US20040040915A1 (en) * 2002-08-29 2004-03-04 Stellar Manufacturing Company Layered tablet water treatment compositions and method of use
US20050040116A1 (en) * 2003-08-21 2005-02-24 Purdy David F. Dual layer tablet, method of making and use thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873685A (en) * 1973-09-10 1975-03-25 Fmc Corp Contiguous shaped chlorine releasing structure
US4389318A (en) * 1981-03-30 1983-06-21 Olin Corporation Rapidly dissolving mixtures containing trichloroisocyanuric acid
US20040040915A1 (en) * 2002-08-29 2004-03-04 Stellar Manufacturing Company Layered tablet water treatment compositions and method of use
US20050040116A1 (en) * 2003-08-21 2005-02-24 Purdy David F. Dual layer tablet, method of making and use thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2415741A1 (en) * 2012-01-24 2013-07-26 Envasados Del Pirineo Sl Pill for integral water treatment (Machine-translation by Google Translate, not legally binding)
CN107306973A (en) * 2017-08-17 2017-11-03 山东大明消毒科技有限公司 A kind of swimming pool disinfectant and its preparation method and application

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