WO2007061265A1 - Composition for liquid type deicer - Google Patents
Composition for liquid type deicer Download PDFInfo
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- WO2007061265A1 WO2007061265A1 PCT/KR2006/005011 KR2006005011W WO2007061265A1 WO 2007061265 A1 WO2007061265 A1 WO 2007061265A1 KR 2006005011 W KR2006005011 W KR 2006005011W WO 2007061265 A1 WO2007061265 A1 WO 2007061265A1
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- deicer
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- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 title claims abstract description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 36
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 36
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 12
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011591 potassium Substances 0.000 claims abstract description 12
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 12
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 claims abstract description 12
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 12
- 241000251468 Actinopterygii Species 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 4
- 150000002739 metals Chemical class 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 25
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 16
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 12
- 239000001110 calcium chloride Substances 0.000 description 12
- 229910001628 calcium chloride Inorganic materials 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 11
- 238000007710 freezing Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 9
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 8
- 230000008014 freezing Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 231100000215 acute (single dose) toxicity testing Toxicity 0.000 description 2
- 238000011047 acute toxicity test Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- ZORPJCONVDWMSP-UHFFFAOYSA-J calcium;magnesium;tetraacetate Chemical class [Mg+2].[Ca+2].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O ZORPJCONVDWMSP-UHFFFAOYSA-J 0.000 description 2
- 235000013877 carbamide Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000238571 Cladocera Species 0.000 description 1
- 241000276423 Fundulus heteroclitus Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- 230000007059 acute toxicity Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000012925 biological evaluation Methods 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
- C09K3/185—Thawing materials
Definitions
- the present invention relates to a composition for a low corrosive non- chloride based liquid deicer and, more particularly, to a composition for a low corrosive non-chloride based liquid deicer, including 6.3% to 7.7% by weight propylene glycol, 1.8% to 2.2% by weight potassium sulfonate, 1.8% to 2.2% by weight disodium succinate, 18% to 22% by weight ethanol, 8.1% to 9.9% by weight acetic acid, and 56% to 64% by weight water, which can replace solid snow removing agents such as calcium chloride and sodium chloride, and reduce corrosiveness and environmental problems.
- ⁇ 7> In order to decrease the danger to traffic and passersby due to snow and ice, the requirements necessary for snow removing agents are as follows: ⁇ 8> (1) The action of removing snow and ice must be efficiently performed. ⁇ 9> (2) The corrosion of metal due to the snow removing agent must not occur.
- the snow removing agents melt ice, which causes an exothermic reaction while being dissolved at the time of contact with water.
- the ice melting action is instantaneous, and a hydrate absorbing agent, such as calcium chloride, is used in the ice melting action.
- the snow removing agents such as carbon powder, conduct an ice melting action by absorbing a radiation heat due to their black color.
- the snow removing agents such as sand, prevent slipping by increasing the frictional force of the surface of a frozen road, and provide traction for passersby or the surface of a tire.
- CMAs Calcium Magnesium Acetates
- the substitutionary deicers are not toxic, biologically decompose into carbon dioxide, cause an exothermic reaction when dissolved in water, the same as calcium chloride, and have the same deicing efficiency as sodium chloride or calcium chloride (S. A. Dunn, R. U. schenk, Federal Highway Administration Report FHWA/RD-79/108, Washington, D.C, 1980).
- the CMAs exhibit better performance when calcium and magnesium are mixed at a ratio of 1 to 0.5 than when used alone, are obtained from dolomite lime and quicklime, having high magnesium content (refer to U.S. Patent Nos. 4,444,672 and 5,122,350), and are sold at a price several tens of times higher than that of sodium chloride, even though being successfully tested in U.S.A. and Canada.
- an object of the present invention is to provide a composition for a low corrosive non-chloride based liquid deicer and, more particularly, to a composition for a low corrosive non- chloride based liquid deicer, including 7% by weight propylene glycol, 2% by weight potassium sulfonate, 2% by weight disodium succinate, 20% by weight ethanol, 9% by weight acetic acid and 60% by weight water, which can replace solid snow removing agents, such as calcium chloride and sodium chloride, and reduce corrosiveness and environmental problems.
- the present invention provides a composition for a low corrosive non-chloride based liquid deicer, including 6.3% to 7.7% by weight propylene glycol, 1.8% to 2.2% by weight potassium sulfonate, 1.8% to 2.2% by weight disodium succinate, 18% to 22% by weight ethanol, 8.1% to 9.9% by weight acetic acid and 56% to 64% by weight water.
- the present invention provides a composition for a low corrosive non-chloride based liquid deicer, prepared by placing a mixture of 7% by weight propylene glycol, 10% by weight potassium sulfonate, 2% by weight disodium succinate, 20% by weight ethanol, 7% to 9% by weight acetic acid and 60% to 62% by weight water into an agitator, and then agitating the mixture at a rotation rate of 500 rpm and at a temperature of 25°C for 10 minutes.
- Industrial ethylene glycol has been used as a conventional freezing point lowering agent in order to lower a freezing point.
- edible propylene glycol plays a role in lowering the freezing point, is present in an amount of 7% by weight of the whole composition, and is environmentally friendly.
- Potassium sulfonate is present in an amount of 7% by weight of the whole composition, provides calcium for plants and trees, and serves a role in protecting the roots and trunks of plants from severe cold in the winter.
- Disodium succinate serves as a corrosion inhibitor, and is present in an amount of 2% by weight of the whole composition.
- Ethanol serves as a freezing point lowering agent and an ice melting agent, and is present in an amount of 20% by weight of the whole composition.
- Acetic acid is used in lowering a freezing point and additionally serves as an ice melting agent, and is present in an amount of 9% by weight of the whole composition.
- the above ratios of the components of the composition are the most preferable ratios, and the weight% of each of the components, other than water used as a mixing agent, constituting the composition has a tolerance of + 10%. Accordingly, the amount of propylene glycol is in a range of 6.3% to 7.7% by weight, the amount of potassium sulfonate is in a range of 1.8% to 2.2% by weight, the amount of disodium succinate is in a range of 1.8% to 2.2% by weight, the amount of ethanol is in a range of 18% to 22% by weight, and the amount of acetic acid is in a range of 8.1% to 9.9% by weight.
- water is present in an amount of 56% to 64% by weight of the whole composition.
- the amount of acetic acid is in a range of 7% to 9% by weight, and the water is present in an amount of 60% to 62% by weight of the whole composition.
- a process of preparing the deicer having the above composition ratio is as follows.
- each component is agitated at a rotation rate of 500 rpm and at a temperature of 25°C for 10 minutes.
- Example 2 and Comparative Examples 1 and 2 ⁇ 46> Deicers were prepared using the same method as in Example. ⁇ 47> 1, based on the ratios given in the following Table 1. ⁇ 48> ⁇ 49> [Table 1]
- Acute toxicity test for fishes is an evaluation for environmental factors, and is a very important biological evaluation method which is used for determining allowable discharge standards required to prevent water pollution and developing early warning systems.
- the freezing point of the deicer of the invention was no higher than -35 0 C, and the re-freezing temperature was -20°C when snow and ice were melted and mixed with each other.
- the invention provides a low corrosive non-chloride based liquid deicer, which does not corrode metals or concrete, does not have toxicity for fishes or pollute soil even when the deicer flows into rivers and soil, can effectively prevent a refreezing phenomenon after the removal of ice and snow even at extremely low temperatures, and is environmentally friendly compared to the conventional deicers.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
Disclosed herein is a composition for a low corrosive non-chloride based liquid deicer. The composition includes 6.3% to 7.7% by weight propylene glycol, 1.8% to 2.2% by weight potassium sulfonate, 1.8% to 2.2% by weight disodium succinate, 18% to 22% by weight ethanol, 8.1% to 9.9% by weight acetic acid and 56% to 64% by weight water. The composition does not corrode metals and concrete, is not toxic for fishes and does not pollute soil even when the deicer get into rivers and soil, can effectively prevent a refreezing phenomenon due to ice and snow removal, and is more environmentally friendly than the conventional deicer.
Description
[DESCRIPTION] [Invention Title]
COMPOSITION FOR LIQUID TYPE DEICER [Technical Field]
<i> The present invention relates to a composition for a low corrosive non- chloride based liquid deicer and, more particularly, to a composition for a low corrosive non-chloride based liquid deicer, including 6.3% to 7.7% by weight propylene glycol, 1.8% to 2.2% by weight potassium sulfonate, 1.8% to 2.2% by weight disodium succinate, 18% to 22% by weight ethanol, 8.1% to 9.9% by weight acetic acid, and 56% to 64% by weight water, which can replace solid snow removing agents such as calcium chloride and sodium chloride, and reduce corrosiveness and environmental problems.
<2>
[Background Art]
<3> Every year, tens of millions of tons of sodium chloride and calcium chloride is used as a snow removing agent all over the world (A. Agoos, Chemical Week, 1445, 18-19(1989)). Sodium chloride is most widely used in the world due to its low price and high deicing action, while the calcium chloride is restrictively used because the calcium chloride has high deicing efficiency due to its low radiation temperature, but has a price several times higher than that of the sodium chloride.
<4> However, despite these advantages, loss from environmental damage, such as the corrosion of bridges, automobiles and the like, the withering and death of roadside trees, and the pollution of underground water, due to the use of the snow removing agents, amounts to several tens of times the cost of snow removing agents used.
<5> The corrosion action of the surface of iron material by chlorides such as sodium chloride and calcium chloride continues because iron oxides and hydrogen formed through electrochemical reaction are removed due to corrosion using chloride ions. This corrosion of iron material applies stress to concrete, therefore the structure of the concrete is damaged.
<6> In particular, a concrete bridge pier is an expensive road structure and thus cannot be easily replaced, so that there is a serious problem, with result that it is necessary to use a snow removing agent having a low corrosiveness.
<7> In order to decrease the danger to traffic and passersby due to snow and ice, the requirements necessary for snow removing agents are as follows: <8> (1) The action of removing snow and ice must be efficiently performed. <9> (2) The corrosion of metal due to the snow removing agent must not occur.
<io> (3) The use of the snow removing agent must be economical.
<π> (4) The surface of the road must not be damaged by the snow removing agent .
<i2> (5) No harm must be done to the environment, such as animals and plants, the atmosphere, and underground water.
<i3> (6) The storage and distribution of the snow removing agent must be convenient.
<i4> Particularly, in the case of bridge piers, the corrosion of the bridge piers and the direct influence on rivers must be considered.
<15> It is well known that Phosphates, frequently used as corrosion inhibitors along with chloride snow removing agents, nitrates, used as non- corrosion snow removing agents, and ureas and carbamates, which are organics, excessively culture phytoplankton in rivers, thereby dissolved oxygen is reduced. Accordingly, if possible, it is preferable to avoid using them.
<i6> The most important problem of snow removing agents which are being currently used and are developed is corrosion action. Meanwhile, the snow removing agents known to have low corrosiveness have the problems of a high price and low deicing efficiency.
<i7> The actions of snow removing agents which are currently used and developed are as follows:
<i8> (1) The snow removing agents melt ice, which causes an exothermic reaction while being dissolved at the time of contact with water. In this
case, the ice melting action is instantaneous, and a hydrate absorbing agent, such as calcium chloride, is used in the ice melting action.
<i9> (2) In contrast, sodium causes an endothermic reaction when dissolved in water, but exhibits a deicing action by causing freezing point depression in the long term.
<20> (3) The snow removing agents, such as carbon powder, conduct an ice melting action by absorbing a radiation heat due to their black color.
<2i> (4) The snow removing agents, such as sand, prevent slipping by increasing the frictional force of the surface of a frozen road, and provide traction for passersby or the surface of a tire.
<22> In particular, at present, Calcium Magnesium Acetates (CMAs) are used as the most usable substitutionary deicers. The substitutionary deicers are not toxic, biologically decompose into carbon dioxide, cause an exothermic reaction when dissolved in water, the same as calcium chloride, and have the same deicing efficiency as sodium chloride or calcium chloride (S. A. Dunn, R. U. schenk, Federal Highway Administration Report FHWA/RD-79/108, Washington, D.C, 1980). The CMAs exhibit better performance when calcium and magnesium are mixed at a ratio of 1 to 0.5 than when used alone, are obtained from dolomite lime and quicklime, having high magnesium content (refer to U.S. Patent Nos. 4,444,672 and 5,122,350), and are sold at a price several tens of times higher than that of sodium chloride, even though being successfully tested in U.S.A. and Canada.
<23> The above described urea, calcium magnesium acetates (CMAs), calcium magnesium salt of organic acids (CMOs), and low corrosion snow removing agents have problems in terms of their cost effectiveness and efficiency, and difficulty in commercialization.
<24>
[Disclosure] [Technical Problem]
<25> Accordingly, the present invention has been made to solve the above problems occurring in the prior art, and an object of the present invention
is to provide a composition for a low corrosive non-chloride based liquid deicer and, more particularly, to a composition for a low corrosive non- chloride based liquid deicer, including 7% by weight propylene glycol, 2% by weight potassium sulfonate, 2% by weight disodium succinate, 20% by weight ethanol, 9% by weight acetic acid and 60% by weight water, which can replace solid snow removing agents, such as calcium chloride and sodium chloride, and reduce corrosiveness and environmental problems.
<26>
[Technical Solution]
<27> In order to accomplish the above object, the present invention provides a composition for a low corrosive non-chloride based liquid deicer, including 6.3% to 7.7% by weight propylene glycol, 1.8% to 2.2% by weight potassium sulfonate, 1.8% to 2.2% by weight disodium succinate, 18% to 22% by weight ethanol, 8.1% to 9.9% by weight acetic acid and 56% to 64% by weight water.
<28> Further, in order to accomplish the above object, the present invention provides a composition for a low corrosive non-chloride based liquid deicer, prepared by placing a mixture of 7% by weight propylene glycol, 10% by weight potassium sulfonate, 2% by weight disodium succinate, 20% by weight ethanol, 7% to 9% by weight acetic acid and 60% to 62% by weight water into an agitator, and then agitating the mixture at a rotation rate of 500 rpm and at a temperature of 25°C for 10 minutes.
<29> The above advantages, objects, and features of the invention will become apparent to those skilled in the art from the following preferred examples of the invention.
<30> The preferred examples of the present invention will be described in detail below.
<3i> Industrial ethylene glycol has been used as a conventional freezing point lowering agent in order to lower a freezing point. In contrast, in the present invention, edible propylene glycol plays a role in lowering the freezing point, is present in an amount of 7% by weight of the whole composition, and is environmentally friendly.
<32> Potassium sulfonate is present in an amount of 7% by weight of the whole composition, provides calcium for plants and trees, and serves a role in protecting the roots and trunks of plants from severe cold in the winter.
<33> Disodium succinate serves as a corrosion inhibitor, and is present in an amount of 2% by weight of the whole composition.Ethanol serves as a freezing point lowering agent and an ice melting agent, and is present in an amount of 20% by weight of the whole composition.
<34> Acetic acid is used in lowering a freezing point and additionally serves as an ice melting agent, and is present in an amount of 9% by weight of the whole composition.
<35> The above ratios of the components of the composition are the most preferable ratios, and the weight% of each of the components, other than water used as a mixing agent, constituting the composition has a tolerance of + 10%. Accordingly, the amount of propylene glycol is in a range of 6.3% to 7.7% by weight, the amount of potassium sulfonate is in a range of 1.8% to 2.2% by weight, the amount of disodium succinate is in a range of 1.8% to 2.2% by weight, the amount of ethanol is in a range of 18% to 22% by weight, and the amount of acetic acid is in a range of 8.1% to 9.9% by weight.
<36> In this case, water is present in an amount of 56% to 64% by weight of the whole composition.
<37> Further, in the case where the ratio of each of the other components is maintained at the most preferable ratio, the amount of acetic acid is in a range of 7% to 9% by weight, and the water is present in an amount of 60% to 62% by weight of the whole composition.
<38> A process of preparing the deicer having the above composition ratio is as follows.
<39> First, water is charged into an agitator, potassium sulfonate is added thereto and dissolved, and then acetic acid is added thereto and dissolved.
<40> Next, disodium succinate is added thereto and agitated, and then propylene glycol and ethanol are added thereto and agitated, thereby preparing the deicer of the invention.
<41> In this case, each component is agitated at a rotation rate of 500 rpm and at a temperature of 25°C for 10 minutes.
<42>
[Best Mode]
<43> Example 1 <44> 60 g of water was placed into an agitator, and 2g of potassium sulfonate was added thereto and agitated therewith. 2g of disodium succinate and 9 g of acetic acid were then added thereto and agitated. Afterwards, 7 g of propylene glycol and 20 g of ethanol were added thereto and agitated for 10 minutes, thereby preparing the deicer of the invention.
<45> Example 2 and Comparative Examples 1 and 2 <46> Deicers were prepared using the same method as in Example. <47> 1, based on the ratios given in the following Table 1. <48> <49> [Table 1]
<50> <51> Experiment example <52> The deicers obtained in the above Examples 1 and 2 and Comparative Examples 1 and 2 were compared with calcium chloride (CaC12), which is a conventional deicer. Evaluation particulars and methods are described in detail below.
<53> (1) Corrosiveness <54> The corrosiveness was evaluated by measuring weight change and color change through a test method of dipping metal samples into the deicers.
<55> The test results are given in Table 2. <56> [Table 2]
<57> (2) Acute toxicity test for fishes <58> The acute toxicity test for fishes is an evaluation for environmental factors, and is a very important biological evaluation method which is used for determining allowable discharge standards required to prevent water pollution and developing early warning systems.
<59> Accordingly, the test for acute toxicity for a killifish, which is an animal living in fresh water, and a water flea which is an invertebrate animal living in the fresh water, using the deicer of the invention, was conducted by the Korea Research Institute of Chemical Technology. As the result of the test, the result values based on OECD Test Guide Line 203 were found to be excellent.
<60> (3) Ice melting and re-freezing efficiency test <61> Important and ultimate objects of the deicer according to the invention are rapid ice melting and snow melting as well as prevention of re-freezing, and the deicer must be environmentally friendly.
<62> The test results for the efficiency of the deicer of the invention are given in Table 3.
<63> [Table 3]
<64> Referring to the above results, the freezing point of the deicer of the invention was no higher than -350C, and the re-freezing temperature was -20°C when snow and ice were melted and mixed with each other.
<65> Further, since a slush phenomenon, which is caused by having a density lower than the density of ice, occurs even at a temperature lower than -35°C, this phenomenon is helpful to promote traffic safety or driving.
<66> In order to perform snow removing and ice removing work using the deicer of the invention, it is desirable to control the sprayed amount using various commonly used sprayers.
<67> In particular, it is believed that, when the preventive spray of the deicer is performed depending on weather forecasts by the Meteorological Administration, the deicer is most effectively used. Further, since the snow and ice removal speed of the deicer of the invention is faster than that of conventional calcium chloride by about 30%, rapid work is expected to be conducted.
<68> <69> Although the preferred examples of the invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
<70>
<71> <72>
[Industrial Applicability]
<73> As described above, the invention provides a low corrosive non-chloride based liquid deicer, which does not corrode metals or concrete, does not have toxicity for fishes or pollute soil even when the deicer flows into rivers and soil, can effectively prevent a refreezing phenomenon after the removal of ice and snow even at extremely low temperatures, and is environmentally friendly compared to the conventional deicers.
<74> <75>
Claims
[CLAIMS] [Claim 1]
A composition for a low corrosive non-chloride based liquid deicer, comprising:
6.3% to 7.7% by weight propylene glycol; 1.8% to 2.2% by weight potassium sulfonate; 1.8% to 2.
2% by weight disodium succinate; 18% to 22% by weight ethanol; 8.1% to 9.9% by weight acetic acid; and 56% to 64% by weight water. [Claim 2]
The composition as set forth in claim 1, wherein the propylene glycol is present in an amount of 7% by weight.
[Claim 3]
The composition as set forth in claim 1, wherein the potassium sulfonate is present in an amount of 2% by weight.
[Claim 4]
The composition as set forth in claim 1, wherein the disodium succinate is present in an amount of 2% by weight.
[Claim 5]
The composition as set forth in claim 1, wherein the ethanol is present in an amount of 20% by weight. [Claim 6]
A composition for a low corrosive non-chloride based liquid deicer, prepared by placing a mixture of 7% by weight propylene glycol, 10% by weight potassium sulfonate, 2% by weight disodium succinate, 20% by weight ethanol, 7% to 9% by weight acetic acid and 60% to 62% by weight water into an agitator, and then agitating the mixture at a rotation rate of 500 rpm and at a temperature of 250C for 10 minutes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2005-0113485 | 2005-11-25 | ||
| KR20050113485 | 2005-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007061265A1 true WO2007061265A1 (en) | 2007-05-31 |
Family
ID=38067436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2006/005011 WO2007061265A1 (en) | 2005-11-25 | 2006-11-27 | Composition for liquid type deicer |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2007061265A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998046695A1 (en) * | 1997-04-16 | 1998-10-22 | Octagon Process Inc. | Deicing and anti-icing composition for aircraft |
| WO2002026910A1 (en) * | 2000-09-29 | 2002-04-04 | Mli Associates, Llc | Environmentally benign anti-icing or deicing fluids |
| WO2003006571A1 (en) * | 2001-07-13 | 2003-01-23 | Metss Corp. | Novel corrosion inhibited runway deicing fluid |
| WO2004063154A2 (en) * | 2003-01-13 | 2004-07-29 | Mli Associates | Environmentally benign anti-icing or deicing fluids |
| KR20060017120A (en) * | 2004-08-20 | 2006-02-23 | (주)즐거운미래 | Non-chlorinated Low Corrosion Liquid Detergent Composition |
-
2006
- 2006-11-27 WO PCT/KR2006/005011 patent/WO2007061265A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998046695A1 (en) * | 1997-04-16 | 1998-10-22 | Octagon Process Inc. | Deicing and anti-icing composition for aircraft |
| WO2002026910A1 (en) * | 2000-09-29 | 2002-04-04 | Mli Associates, Llc | Environmentally benign anti-icing or deicing fluids |
| WO2003006571A1 (en) * | 2001-07-13 | 2003-01-23 | Metss Corp. | Novel corrosion inhibited runway deicing fluid |
| WO2004063154A2 (en) * | 2003-01-13 | 2004-07-29 | Mli Associates | Environmentally benign anti-icing or deicing fluids |
| KR20060017120A (en) * | 2004-08-20 | 2006-02-23 | (주)즐거운미래 | Non-chlorinated Low Corrosion Liquid Detergent Composition |
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