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WO2004029360A1 - Composition de fabrication de papier comprenant un agent de retention polymere cationique sans solvant combine avec une resine phenolique et du polyethylene oxyde - Google Patents

Composition de fabrication de papier comprenant un agent de retention polymere cationique sans solvant combine avec une resine phenolique et du polyethylene oxyde Download PDF

Info

Publication number
WO2004029360A1
WO2004029360A1 PCT/CA2003/001415 CA0301415W WO2004029360A1 WO 2004029360 A1 WO2004029360 A1 WO 2004029360A1 CA 0301415 W CA0301415 W CA 0301415W WO 2004029360 A1 WO2004029360 A1 WO 2004029360A1
Authority
WO
WIPO (PCT)
Prior art keywords
phenolic resin
solventless
furnish
cationic polymer
retention aid
Prior art date
Application number
PCT/CA2003/001415
Other languages
English (en)
Inventor
Marco Polverari
Joseph Vu
David Aston
Original Assignee
Kemira Chemicals Canada Inc.
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 Kemira Chemicals Canada Inc. filed Critical Kemira Chemicals Canada Inc.
Priority to NZ539024A priority Critical patent/NZ539024A/en
Priority to EP03798022A priority patent/EP1546460A1/fr
Priority to BR0314771-1A priority patent/BR0314771A/pt
Priority to US10/525,320 priority patent/US20060000568A1/en
Priority to AU2003266087A priority patent/AU2003266087A1/en
Publication of WO2004029360A1 publication Critical patent/WO2004029360A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
    • D21H23/765—Addition of all compounds to the pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers

Definitions

  • This invention relates to papermaking. More particularly, it relates to a papermaking furnish that comprises a solventless cationic polymer retention aid in combination with phenolic resin and polyethylene oxide (PEO) to increase retention and/or drainage in the furnish.
  • a papermaking furnish that comprises a solventless cationic polymer retention aid in combination with phenolic resin and polyethylene oxide (PEO) to increase retention and/or drainage in the furnish.
  • PEO polyethylene oxide
  • an aqueous suspension of cellulosic fibers is spread over a wire or cloth and water is removed therefrom to form a fiber web or sheet.
  • aqueous suspension or slurry is called "papermaking furnish”.
  • the removal of water or dewatering of the furnish as well as retention of fines, fillers and other papermaking chemicals in the paper sheet are very important to the efficient recovery and production rate and to the cost of manufacture of the paper and its quality.
  • phenolic resin is usually added first to the furnish, before the last shear point, such as a fan pump, and PEO is added second, usually near the headbox of the paper machine, in order to minimize shear.
  • shearing is provided by one or more of the cleaning, mixing and pumping stages in the papermaking process and the shear breaks down the flocks formed by the high molecular weight polymer into microflocs. which are further agglomerated, for instance with the help of cationic starch.
  • the mechanism of the phenolic resin/PEO two- component retention system consists firstly of adso ⁇ tion of the phenolic resin onto fibers and fines, followed by attachment of PEO to the phenolic hydroxyl groups of the resin, forming high molecular weight polymeric networks which serve to retain the fines and also promote drainage.
  • Examples of such two-component retention system are disclosed, for instance, in U.S. Patents Nos. 4,070,236 and 5,472,570.
  • the phenolic resin/PEO two-component system has the advantage of being independent of most dissolved and colloidal contaminants in the water circuit because it functions by a hydrogen-bonding mechanism.
  • cationic polyacrylamides which are also commonly used as retention aids, are adversely affected by dissolved and colloidal contaminants found in mechanical pulp.
  • the phenolic resin/PEO two-component system has several other advantages over cationic polyamides, including more favorable effects on the final sheet formation and a better pitch control, which refers to its ability to fix organic contaminants in the paper sheet rather than allowing them to deposit on the mill fabrics and machinery, thereby causing eventual shutdowns.
  • the phenolic resin/PEO retention and drainage system has not been adopted in mills producing grades such as highly filled specialty mechanical paper, fine paper (where mechanical pulp from softwood does not form a large part of the furnish), and tissue and packaging papers. In these areas, cationic polyacrylamides are the predominant treatment.
  • OBJECTS AND SUMMARY OF THE DSfNENTION Is is an object of the present invention to provide a papermaking furnish with increased retention rate and drainage based on the phenolic resin/PEO retention system.
  • a further object is to provide a method of increasing retention rate and drainage in a papermaking furnish while also maintaining good sheet quality at reduced cost.
  • a still f rther object is to provide a papermaking furnish based on the phenolic resin PEO retention system which would be suitable for producing highly filled specialty mechanical paper, fine paper and tissue and packaging papers.
  • a retention aid consisting of a solventless cationic polymer, which is in the form of an oil-free, water-soluble polymeric dispersion, combined with phenolic resin, such as phenol formaldehyde resin, provides increased retention rate and drainage as well as other advantages, such as reduced cost, when used in conjunction with polyethylene oxide (PEO).
  • phenolic resin such as phenol formaldehyde resin
  • PEO polyethylene oxide
  • the solventless, cationic polymer retention aid and phenolic resin are added to the furnish, they form a structure which gives a significantly improved reaction with polyethylene oxide when it is added to the furnish. Retention, namely fiber retention, filler retention, and COD-retention
  • the solventless, cationic polymer retention aids suitable for the purposes of the present invention are characterizied by the fact that they do not contain any oil-phase. They are liquid, aqueous, solventless dispersions of cationic polymers with typical charge densities of between 20 and 75% mole percent, solids content between 2 and 70%, and viscosities in water at 1% of between 2000 and 20000 mPa sec.
  • the solventless cationic polymer retention aid and phenolic resin may enter the furnish separately at two different points of addition or together at the same point of addition, i.e. they can be used in sequence or together, and their combination reacts much more favourably with PEO than if either component is used alone.
  • the solventless cationic polymer retention aid and the phenolic resin can be added to the furnish either before or after PEO addition.
  • Solventless cationic polymers are suitable for the purposes of the present invention regardless of the number, type or concentration of the monomers used to make them and they can be in the form of a liquid or dried to a powder.
  • Examples of such polymers are those marketed by Degussa under trade names Praestaret K-325 and Praestaret K-350 as well as Praestol E-125 and Praestor E-150.
  • the present invention provides a papermaking furnish comprising a combination of a solventless cationic polymer retention aid with phenolic resin and polyethylene oxide, as a retention system for retaining fines, fillers and other papermaking chemicals in the paper sheet.
  • the amount of the solventless cationic retention aid is 0.05 kg/ton to 10 kg/ton based on the weight of dry fibers; the amount of phenolic resin is 0.05 kg/ton to 10 kg/ton of actual resin in the as-supplied material per ton of dry fibers; and the amount of polyethylene oxide is 5 g/ton to 500 g/ton based on the weight of dry fibers, the "ton" being a metric tonne.
  • the preferred ratio of solventless cationic polymer retention aid to phenolic resin is from 200:1 to 1:200; that of phenolic resin to PEO from 100:1 to 1:100 and that of solventless cationic polymer retention aid to PEO is from 1:2000 to 2000:1.
  • the invention also includes a method of increasing retention rate and drainage in a papermaking furnish by adding to the furnish an effective amount of a solventless cationic polymer retention aid in combination with phenolic resin and polyethylene oxide.
  • the effective amount will depend on the type of pulp being dewatered and on the other additives being used. It can readily be established by trial and error before establishing the appropriate amount for a given furnish. The preferred amounts are those already indicated above.
  • the filler is pretreated with the solventless cationic polymer retention aid before it is added to the stock.
  • This pretreatment is a preflocculation approach and it results in a better dispersion of the filler throughout the stock, better fines/filler retention and better opacifying properties.
  • the pretreated filler is dosed into the stock before the last point of shear and the PEO is preferably dosed near the head box, thus capturing the filler particles as well as other fines and fibers in an apparent network structure.
  • this invention utilizes the synergism between the phenolic resin and the solventless cationic polymer retention aid to enhance the performance with polyethylene oxide and to allow the use of polyethylene oxide and phenolic resin in a wider range of applications, as well as improving existing newsprint applications.
  • the synergistic phenolic resin/ solventless cationic polymer retention aid combination gives further beneficial effects if the solventless cationic polymer retention aid is premixed with the filler prior to dosing into the stock and reaction with polyethylene oxide.
  • the practice of this invention enables the benefits of polyethylene oxide to be realized in more papermaking applications than is possible at present. These benefits include a more favourable sheet formation than that produced by polyacrylamide retention agents, an ability to fix pitch contaminants in the sheet and the generally lower dosage rate than with polyacrylamide systems, leading to potentially lower steam consumption in the driers because of the smaller amount of bound water.
  • Other benefits obtained by the practice of this invention are its favourable reaction with starch, and its ability to provide a superior flocculating pretreatment of the filler in order that the activated filler be more fully dispersed throughout the stock prior to its capture by the addition of the polyethylene oxide component.
  • Fig. 1 is a schematic representation of an arrangement in which the solventless polymer and the phenolic resin are introduced together into the papermaking furnish
  • Fig. 2 is a schematic representation of an arrangement in which the solventless polymer and the phenolic resin are introduced separately from one another into the papermaking furnish;
  • Fig. 3 is a schematic representation of an arrangement in which the solventless polymer is added last into the papermaking furnish.
  • Fig. 4 is a schematic representation of an arrangement in which the filler is pretreated with the solventless polymer.
  • Fig. 1 illustrates a schematic arrangement of a papermaking process in which the fan pump 10 forms the last point of shear after which the furnish proceeds to the screen 12 and from the screen to the headbox 14.
  • the solventless polymer and the phenolic resin are introduced together into the furnish between the fan pump 10 and the screen 12 before the introduction of PEO.
  • the solventless polymer is added to the furnish in advance of the fan pump 10 and prior to the introduction of the phenolic resin and PEO which are added between the fan pump 10 and the screen 12.
  • the solventless polymer is added here as a fiber pretreatment micropolymer.
  • the solventless polymer is added last after the screen 12 and just in advance of the headbox 14. It acts here as a drainage aid.
  • the solventless polymer is added as a filler pretreatment in advance of the fan pump 10.
  • the phenolic resin is also added in advance of the fan pump 10, but after the pretreated filler.
  • PEO is added between the fan pump 10 and the screen 12.
  • DDJ Dynamic drainage jar
  • DDA Dynamic Drainage Analyzer
  • Drainage in the DDA is measured as the time from the start of the run until air starts being sucked through the sheet and it is automatically computed to within one hundredth of a second.
  • the drainage is affected by many factors, for example grammage, vacuum, sample volume, type of stock, temperature, wire, and chemicals. It is usually desirable to use the same furnish consistency as in the mill. However, for furnishes with high freeness and fast drainage it can improve the experimental accuracy if a higher solids content or larger sample volume is used. The opposite is true of a low freeness furnish.
  • Retention is defined as the amount of fiber retained on the wire compared to the amount of fiber going through.
  • the retention in DDA experiments is inherently higher than on a paper machine. However, it correlates very well with the values found with a Brittjar.
  • a 1.06% cellulosic fibre slurry consisting of 50% TMP (thermo mechanical pulp - hydrosulfite bleached), 20% DIP (de-inked pulp) and 30% broke was taken from a newsprint mill.
  • the slurry had a clay filler content of 20%.
  • the pH of the slurry was set at 4.5.
  • DDJ Dynamic drainage jar
  • the speed of the stirrer was set at 550 ⁇ m.
  • a 500 ml sample was used for testing. FPR indicates the first pass retention.
  • a 0.992% cellulose fibre slurry consisting of 10% Kraft and 90% TMP (thermo mechanical pulp - hydrosulfite bleached) was taken from a specialty newsprint mill.
  • the slurry had a clay filler content of 10%.
  • the pH of the slurry was set at 6.0
  • DDA Dynamic Drainage Analyzer
  • a 1.12% cellulose fibre slurry consisting of 5% Kraft, 70% TMP (thermo mechamcal pulp - hydrosulfite bleached) and 25% deinked pulp (DIP) was taken from a specialty newsprint mill using recycled fibres.
  • the slurry had a clay filler content of 30%.
  • the pH of the slurry was set at 6.2

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  • Paper (AREA)

Abstract

L'invention concerne une composition de fabrication de papier qui contient un système de rétention à base de résine phénolique et de polyéthylène oxyde combiné avec un agent de rétention polymère cationique sans solvant qui augmente le taux de rétention et de drainage dans la feuille de papier. L'agent de rétention peut être ajouté à la composition de fabrication conjointement avec la résine phénolique ou séparément, à un point d'addition différent. L'agent de rétention peut également être utilisé pour prétraiter une charge qui est ajoutée à la composition de fabrication.
PCT/CA2003/001415 2002-09-27 2003-09-16 Composition de fabrication de papier comprenant un agent de retention polymere cationique sans solvant combine avec une resine phenolique et du polyethylene oxyde WO2004029360A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NZ539024A NZ539024A (en) 2002-09-27 2003-09-16 Papermaking furnish comprising solventless cationic polymer retention aid combined with phenolic resin and polyethylene oxide
EP03798022A EP1546460A1 (fr) 2002-09-27 2003-09-16 Composition de fabrication de papier comprenant un agent de retention polymere cationique sans solvant combine avec une resine phenolique et du polyethylene oxyde
BR0314771-1A BR0314771A (pt) 2002-09-27 2003-09-16 Suprimento para fabricação de papel, e, método de aumentar a taxa de retenção e/ou drenagem em um suprimento para fabricação de papel
US10/525,320 US20060000568A1 (en) 2002-09-27 2003-09-16 Papermaking furnish comprising solventless cationic polymer retention aid combined with phenolic resin and polyethylene oxide
AU2003266087A AU2003266087A1 (en) 2002-09-27 2003-09-16 Papermaking furnish comprising solventless cationic polymer retention aid combined with phenolic resin and polyethylene oxide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002405649A CA2405649C (fr) 2002-09-27 2002-09-27 Composition de fabrication de papier contenant un sequestrant a base de polymere cationique sans solvant, combine a une resine phenolique et a de l'oxyde de polyethylene
CA2,405,649 2002-09-27

Publications (1)

Publication Number Publication Date
WO2004029360A1 true WO2004029360A1 (fr) 2004-04-08

Family

ID=32034681

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2003/001415 WO2004029360A1 (fr) 2002-09-27 2003-09-16 Composition de fabrication de papier comprenant un agent de retention polymere cationique sans solvant combine avec une resine phenolique et du polyethylene oxyde

Country Status (9)

Country Link
US (1) US20060000568A1 (fr)
EP (1) EP1546460A1 (fr)
CN (1) CN1694990A (fr)
AU (1) AU2003266087A1 (fr)
BR (1) BR0314771A (fr)
CA (1) CA2405649C (fr)
NZ (1) NZ539024A (fr)
RU (1) RU2317361C2 (fr)
WO (1) WO2004029360A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008033490A1 (fr) * 2006-09-14 2008-03-20 Kemira Oyj Composition et procédé pour traitement de papier
US10961604B2 (en) 2015-04-17 2021-03-30 The University Of British Columbia Process for leaching metal sulfides with reagents having thiocarbonyl functional groups
US11859263B2 (en) 2016-10-19 2024-01-02 Jetti Resources, Llc Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007096242A1 (fr) * 2006-02-20 2007-08-30 Clariant International Ltd Procede ameliore de fabrication de papier et de carton
US9631093B2 (en) * 2011-12-07 2017-04-25 Owens Corning Intellectual Capital, Llc Methods for reducing odors in asphalt
CN102718297B (zh) * 2012-06-13 2017-06-23 丰信精细化工(上海)有限公司 一种高浓度高分子聚硅型絮凝剂
FR3009830B1 (fr) 2013-08-22 2015-08-14 Snf Sas Nouveaux complexes de polymeres hydrosolubles et leurs utilisations

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070236A (en) * 1974-11-15 1978-01-24 Sandoz Ltd. Paper manufacture with improved retention agents
US5472570A (en) * 1993-03-25 1995-12-05 Hercules Incorporated Phenolic compound/polyethylene oxide retention system
US5480934A (en) * 1993-05-14 1996-01-02 Roehm Gmbh Chemische Fabrik Method for the production of a low-viscosity, water-soluble polymeric dispersion
US5516405A (en) * 1993-09-20 1996-05-14 Macmillan Bloedel Limited Retention aids
US5755930A (en) * 1994-02-04 1998-05-26 Allied Colloids Limited Production of filled paper and compositions for use in this

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
SE451739B (sv) * 1985-04-03 1987-10-26 Eka Nobel Ab Papperstillverkningsforfarande och pappersprodukt varvid som avvattnings- och retentionsforbettrande kemikalie anvends katjonisk polyakrylamid och en speciell oorganisk kolloid
US5098520A (en) * 1991-01-25 1992-03-24 Nalco Chemcial Company Papermaking process with improved retention and drainage
US5571380A (en) * 1992-01-08 1996-11-05 Nalco Chemical Company Papermaking process with improved retention and maintained formation
SE501214C2 (sv) * 1992-08-31 1994-12-12 Eka Nobel Ab Silikasol samt förfarande för framställning av papper under användande av solen
US5472470A (en) * 1994-05-27 1995-12-05 Glasstech, Inc. Glass sheet press forming and quenching ring
DE60037658T2 (de) * 1999-03-31 2008-12-18 FPInnovations, Pointe-Claire Retentionsmittel enthaltend peo
GB0109087D0 (en) * 2001-04-11 2001-05-30 Ciba Spec Chem Water Treat Ltd Treatment of suspensions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070236A (en) * 1974-11-15 1978-01-24 Sandoz Ltd. Paper manufacture with improved retention agents
US5472570A (en) * 1993-03-25 1995-12-05 Hercules Incorporated Phenolic compound/polyethylene oxide retention system
US5480934A (en) * 1993-05-14 1996-01-02 Roehm Gmbh Chemische Fabrik Method for the production of a low-viscosity, water-soluble polymeric dispersion
US5516405A (en) * 1993-09-20 1996-05-14 Macmillan Bloedel Limited Retention aids
US5755930A (en) * 1994-02-04 1998-05-26 Allied Colloids Limited Production of filled paper and compositions for use in this

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008033490A1 (fr) * 2006-09-14 2008-03-20 Kemira Oyj Composition et procédé pour traitement de papier
US7981250B2 (en) 2006-09-14 2011-07-19 Kemira Oyj Method for paper processing
US8038846B2 (en) 2006-09-14 2011-10-18 Kemira Oyj Composition and method for paper processing
AU2007294793B2 (en) * 2006-09-14 2012-04-05 Kemira Oyj Composition and method for paper processing
KR101414800B1 (ko) 2006-09-14 2014-07-03 케미라 오와이제이 종이 처리를 위한 조성물 및 방법
EP3061866A1 (fr) * 2006-09-14 2016-08-31 Kemira Oyj Procédé de fabrication de papier ou de carton
US10961604B2 (en) 2015-04-17 2021-03-30 The University Of British Columbia Process for leaching metal sulfides with reagents having thiocarbonyl functional groups
US11859263B2 (en) 2016-10-19 2024-01-02 Jetti Resources, Llc Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

Also Published As

Publication number Publication date
CN1694990A (zh) 2005-11-09
NZ539024A (en) 2006-06-30
BR0314771A (pt) 2005-08-02
AU2003266087A1 (en) 2004-04-19
CA2405649A1 (fr) 2004-03-27
RU2005113160A (ru) 2006-03-20
RU2317361C2 (ru) 2008-02-20
US20060000568A1 (en) 2006-01-05
EP1546460A1 (fr) 2005-06-29
CA2405649C (fr) 2006-05-16

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