CN101705078B - Formulation and preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution - Google Patents
Formulation and preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution Download PDFInfo
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- CN101705078B CN101705078B CN2009102289439A CN200910228943A CN101705078B CN 101705078 B CN101705078 B CN 101705078B CN 2009102289439 A CN2009102289439 A CN 2009102289439A CN 200910228943 A CN200910228943 A CN 200910228943A CN 101705078 B CN101705078 B CN 101705078B
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- 238000007710 freezing Methods 0.000 title claims abstract description 44
- 230000008014 freezing Effects 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000000203 mixture Substances 0.000 title abstract description 9
- 238000009472 formulation Methods 0.000 title abstract 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims abstract description 124
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 33
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims abstract description 22
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000008367 deionised water Substances 0.000 claims abstract description 14
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 12
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 11
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000012964 benzotriazole Substances 0.000 claims abstract description 11
- 239000013530 defoamer Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 11
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000049 pigment Substances 0.000 claims abstract description 5
- KRXFTOUYGXMRRU-UHFFFAOYSA-N 3h-1,3-benzothiazole-2-thione;sodium Chemical compound [Na].C1=CC=C2SC(=S)NC2=C1 KRXFTOUYGXMRRU-UHFFFAOYSA-N 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- 229940001516 sodium nitrate Drugs 0.000 claims description 10
- 229960004418 trolamine Drugs 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- -1 sulfhydryl benzothiazole sodium Chemical compound 0.000 abstract description 2
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 23
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000000839 emulsion Substances 0.000 description 6
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000003245 working effect Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000006259 organic additive Substances 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000208140 Acer Species 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000590428 Panacea Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- ULSIYEODSMZIPX-UHFFFAOYSA-N phenylethanolamine Chemical compound NCC(O)C1=CC=CC=C1 ULSIYEODSMZIPX-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to a formulation and a preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution. The preparation method comprises: adding dimethyl sulfoxide to a reactor A, adding triethanolamine, benzotriazole and sebacic acid in turn, fully stirring till all materials are dissolved; adding deionized water to a reactor B, adding sulfhydryl benzothiazole sodium and sodium hydroxide in turn, stirring for 15 to 20 minutes, adding sodium nitrate and sodium silicate in turn and fully stirring for 15 to 20 minutes; pumping the materials in the reactor A into the reactor B, mixing two phases well, adding defoamer, continuing to stirring and mixing, adding pigment, stirring and mixing; and standing the obtained product for 15 to 20 minutes so as to obtain the non-freezing solution. The non-freezing solution has the advantages of excellent low-temperature resistance, energy conservation, environmental protection performance, excellent performance, proper price and help to environmental ecological protection.
Description
Technical field
The present invention relates to the used non-freezing solution technical field of car engine cooling system, particularly a kind of low-temperature-resistant environment-friendly automobile non-freezing solution prescription and non-freezing solution preparation method.
Background technology
Non-freezing solution makes protective liquid also be engine coolant again, is the circulatory mediator that car engine cooling system is used, and utilizes liquid circulation to flow and derives heat, protection normal working of engine.Automobile non-freezing solution also needs to have higher boiling point except containing alap freezing point and additive, can prevent incrustation scale and to various corrosions of metal of cooling system and performance.
At present, producer generally makes the main component of spent glycol as non-freezing solution.But but there is following shortcoming:
1. not low temperature resistant.The ethylene glycol non-freezing solution is inapplicable when surpassing-40 ℃ of low temperature.
2. poisonous, not environmental protection, biological degradability is poor.
3. inflammable, explosive.
4. easily produce vapour lock.
5. lack work-ing life, easily produce precipitation.
In recent years, because ethylene glycol is generally used by producer, make the ethylene glycol price be elevated, make the automobile non-freezing solution product cost of production higher, client is difficult to accept, and has influenced the sale of manufacturer greatly.The less dimethyl sulfoxide (DMSO) of using of existing domestic production automobile non-freezing solution is as its raw materials for production, so the price of dimethyl sulfoxide (DMSO) is not subjected to market clout, it is lower to produce its cost of non-freezing solution with dimethyl sulfoxide (DMSO), is more easily accepted by market.
Summary of the invention
The purpose of this invention is to provide a kind of low-temperature-resistant environment-friendly automobile non-freezing solution.
Technical scheme of the present invention is: a kind of low-temperature-resistant environment-friendly automobile non-freezing solution, form by dimethyl sulfoxide (DMSO), deionized water, trolamine, benzotriazole, sebacic acid, 2-mercaptobenzothiazole sodium, SODIUMNITRATE, sodium hydroxide, water glass, pigment, defoamer.
Low-temperature-resistant environment-friendly automobile non-freezing solution prescription of the present invention is: basic material is dimethyl sulfoxide (DMSO) and deionized water, and weight percent is:
Dimethyl sulfoxide (DMSO) 37～48%
Deionized water 52～63%;
With basic material is 100% quality criteria, and the weight percent percentage composition of other batchings of adding is:
Trolamine 0.8～1%
Benzotriazole 0.1～0.13%
Sebacic acid 0.25～0.35%
2-mercaptobenzothiazole sodium 0.08～0.1%
SODIUMNITRATE 0.1～0.12%
Sodium hydroxide 0.11～0.15%
Water glass 0.1～0.12%
Defoamer 0.004%
Pigment 0.005%.
The preparation method of non-freezing solution of the present invention, step is as follows:
1). in reactor A, add dimethyl sulfoxide (DMSO), add trolamine, benzotriazole, sebacic acid successively, fully stir until whole dissolvings;
2). in reactor B, add deionized water, add 2-mercaptobenzothiazole sodium, sodium hydroxide successively, stirred 15～20 minutes, add SODIUMNITRATE, water glass more successively, fully stirred 15～20 minutes;
3). with the material among the reactor A, squeeze among the reactor B, behind the abundant mixing of two-phase, add defoamer, behind the continuation stirring and evenly mixing, add pigment again, behind the stirring and evenly mixing with pump; Left standstill 15～20 minutes, and promptly became non-freezing solution.
The beneficial effect that non-freezing solution provided by the present invention has is:
1. adopt dimethyl sulfoxide (DMSO) to replace ethylene glycol to produce non-freezing solution, lower temperature resistance is strong.
2. dimethyl sulfoxide (DMSO) is a raw material production with methyl alcohol, and ethylene glycol is petrochemical materials, and the former is save energy greatly, the influence that product can not risen steadily by cost of material.
3. colourless, the odorless of dimethyl sulfoxide (DMSO) is harmless.
4. in the production process, be added with multiple efficient corrosion inhibitor, can suppress all corrosion takes place, various metals to engine-cooling system have extremely strong defencive function, metal protection test is minimum to six kinds of tinsels (steel, cast iron, steel, brass, scolding tin, aluminum casting) corrosion after tested, can prolong engine work-ing life greatly;
5. raw material does not contain Ca
2+, Mg
2+, CO
3 2-, SO
4 2-Deng becoming dirty component, has superior resistance to hard water.
6. additive is nuisanceless organic additive, belongs to Green Product.
The present invention is a kind of low-temperature-resistant environment-friendly automobile non-freezing solution, adopts dimethyl sulfoxide (DMSO) to replace ethylene glycol as the non-freezing solution main production raw material.Dimethyl sulfoxide (DMSO), normal temperature is the transparent liquid of no color or smell down, has high polarity, high boiling point, non-proton, in the miscible characteristic of water, toxicity is extremely low, and Heat stability is good can be dissolved in ethanol, propyl alcohol, most of organism such as benzene and chloroform.Moisture 40% dimethyl sulfoxide (DMSO) is not frozen at-60 ℃, and with water, snow heat release when mixing, be used for automobile, battlebus at the NORTH CHINA severe cold area, can replace water replenish with ice and snow at any time, and the ethylene glycol non-freezing solution be inapplicable above-40 ℃ of low temperature the time.Because dimethyl sulfoxide (DMSO) boiling point height, can mix with arbitrary proportion with water, reach the purpose that reduces freezing point, and specific heat is moderate, this for winter engine as early as possible and to reach the thermal equilibrium working order be favourable.Dimethyl sulfoxide (DMSO) is produced the symptom of a trend that there is production capacity surplus in used material benzenemethanol, uses not only environmental protection of dimethyl sulfoxide (DMSO), and save energy greatly.Dimethyl sulfoxide (DMSO) is very important aprotic polar solvent and important fine chemical product in addition, one to being described as " Dimethyl Sulfoxide ", be called " panacea " abroad, be widely used in many chemical industry fields such as medicine, agricultural chemicals, oil, chemical industry, organic synthesis, electronics, coating, metallurgy, dyestuff and macromolecular material, and some new purposes are being found constantly also.The inferior maple of dimethyl is with the speed increase in every year 17% in the world, and China is the major country of dimethyl sulfoxide (DMSO) products production, and output and industrial scale are only second to France.Raw material resources are abundant, and product price and quality product take advantage, and add that prospect of export is good, and market potential is huge, are the Chemicals that are worth further research and enlarge exploitation.So have vast market prospect as the main material production automobile non-freezing solution with dimethyl sulfoxide (DMSO).
In a word; the present invention's non-freezing solution has excellent lower temperature resistance, energy-conservation and environmental-protecting performance, is the long lifetime cooling fluid, owing to be host with organic acid and non-harmful organic additive; Green Product sheerly, product performance are good, price suits, help the protection of environmental ecology.
Embodiment
Embodiment 1:
Prepare non-freezing solution in following ratio:
Dimethyl sulfoxide (DMSO) 37%
Deionized water 63%,
With basic material is 100% quality criteria, and the weight percent percentage composition of other batchings of adding is:
Trolamine 0.8%
Benzotriazole 0.1%
Sebacic acid 0.25%
2-mercaptobenzothiazole sodium 0.08%
SODIUMNITRATE 0.1%
Sodium hydroxide 0.11%
Water glass 0.1%
Silicone emulsion defoamer 0.004%
Fluorescein 0.005%.
1. in reactor A, add dimethyl sulfoxide (DMSO) 37kg, add trolamine 0.8kg successively, benzotriazole 0.1kg, sebacic acid 0.25kg fully stirred 15～20 minutes, until whole dissolvings.
2. in reactor B, add deionized water 63kg, add 2-mercaptobenzothiazole sodium 0.08kg successively, sodium hydroxide 0.11kg stirred 15～20 minutes, added SODIUMNITRATE 0.1kg more successively, and water glass 0.1kg fully stirred 15～20 minutes.
3. with the material among the reactor A, squeeze among the reactor B, stirred 20 minutes, behind the abundant mixing of two-phase, add silicone emulsion defoamer 0.004kg, continue to stir 5 minutes, add fluorescein 0.005kg again, stirred 10 minutes with pump.Left standstill 15～20 minutes, and after sampling Detection is qualified, filtered, can promptly goes out the finished product of non-freezing solution of the present invention.
Embodiment 2:
Prepare non-freezing solution in following ratio:
Dimethyl sulfoxide (DMSO) 43.5%
Deionized water 56.5%
With basic material is 100% quality criteria, and the weight percent percentage composition of other batchings of adding is:
Trolamine 0.85%
Benzotriazole 0.11%
Sebacic acid 0.28%
2-mercaptobenzothiazole sodium 0.09%
SODIUMNITRATE 0.11%
Sodium hydroxide 0.12%
Water glass 0.1%
Silicone emulsion defoamer 0.004%
Fluorescein 0.005%
The embodiment operation steps is with embodiment 1.
Embodiment 3:
Prepare non-freezing solution in following ratio:
Dimethyl sulfoxide (DMSO) 44%
Deionized water 56%
With basic material is 100% quality criteria, and the weight percent percentage composition of other batchings of adding is:
Trolamine 0.9%
Benzotriazole 0.12%
Sebacic acid 0.3%
2-mercaptobenzothiazole sodium 0.1%
SODIUMNITRATE 0.11%
Sodium hydroxide 0.13%
Water glass 0.11%
Silicone emulsion defoamer 0.004%
Fluorescein 0.005%
The embodiment operation steps is with embodiment 1.
Embodiment 4:
Prepare non-freezing solution in following ratio:
Dimethyl sulfoxide (DMSO) 46%
Deionized water 54%
With basic material is 100% quality criteria, and the weight percent percentage composition of other batchings of adding is:
Trolamine 0.95%
Benzotriazole 0.12%
Sebacic acid 0.32%
2-mercaptobenzothiazole sodium 0.1%
SODIUMNITRATE 0.12%
Sodium hydroxide 0.14%
Water glass 0.12%
Silicone emulsion defoamer 0.004%
Fluorescein 0.005%
The embodiment operation steps is with embodiment 1.
Embodiment 5:
Prepare non-freezing solution in following ratio:
Dimethyl sulfoxide (DMSO) 48%
Deionized water 52%
With basic material is 100% quality criteria, and the weight percent percentage composition of other batchings of adding is:
Trolamine 1.0%
Benzotriazole 0.13%
Sebacic acid 0.35%
2-mercaptobenzothiazole sodium 0.1%
SODIUMNITRATE 0.12%
Sodium hydroxide 0.15%
Water glass 0.12%
Silicone emulsion defoamer 0.004%
Fluorescein 0.005%
The embodiment operation steps is with embodiment 1.
The present invention's non-freezing solution obtains the Technology prescription through a large amount of experiments, it is carried out the physico-chemical property test, gained data such as table 1, table 2:
Table 1 analytical results table
Table 2 tinsel changes in weight table
Can find out that from test-results all physical and chemical index all meets the related standards of non-freezing solution different model.And this non-freezing solution to the corrosion of metal testing plate well below standard-required, little to the corrosion of six kinds of tinsels, can prolong work-ing life of engine greatly.
Low-temperature-resistant environment-friendly non-freezing solution of the present invention has good cold resistance, excellent corrosion-inhibiting and outstanding hard water adaptability, good antifreezely, anti-boils, anticorrosion, antirust, anti-scaling function, need not the four seasons to change.Reach 150,000～200,000 kilometers the work-ing life of this non-freezing solution, promptly use the life-span to meet or exceed general major repair of vehicle mileage, can significantly energy-conservation, consumption reduction.Owing to successfully add homogeneous modified with organic acids polymkeric substance, significantly improve erosion-resisting ability under the high-temperature condition.This products production cost is low, and its raw materials for production dimethyl sulfoxide (DMSO) is the Chemicals that are worth further research and enlarge exploitation, so have higher promotional value and vast market prospect with dimethyl sulfoxide (DMSO) for the raw material production non-freezing solution.
Claims (2)
1. low-temperature-resistant environment-friendly automobile non-freezing solution prescription, it is characterized in that: basic material is dimethyl sulfoxide (DMSO) and deionized water, and weight percent is:
Dimethyl sulfoxide (DMSO) 37～48%
Deionized water 52～63%;
With basic material is 100% quality criteria, and the weight percentage of other batchings of adding is:
2. the preparation method of the non-freezing solution of claim 1 is characterized in that step is as follows:
1). in reactor A, add dimethyl sulfoxide (DMSO), add trolamine, benzotriazole, sebacic acid successively, fully stir until whole dissolvings;
2). in reactor B, add deionized water, add 2-mercaptobenzothiazole sodium, sodium hydroxide successively, stirred 15～20 minutes, add SODIUMNITRATE, water glass more successively, fully stirred 15～20 minutes;
3). with the material among the reactor A, squeeze among the reactor B, behind the abundant mixing of two-phase, add defoamer, behind the continuation stirring and evenly mixing, add pigment again, behind the stirring and evenly mixing with pump; Left standstill 15～20 minutes, and promptly became non-freezing solution.
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| CN2009102289439A CN101705078B (en) | 2009-12-02 | 2009-12-02 | Formulation and preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution |
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|---|---|---|---|
| CN2009102289439A CN101705078B (en) | 2009-12-02 | 2009-12-02 | Formulation and preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution |
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| CN101705078A CN101705078A (en) | 2010-05-12 |
| CN101705078B true CN101705078B (en) | 2011-08-17 |
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| CN105542729A (en) * | 2016-01-13 | 2016-05-04 | 倪跃玉 | Energy-saving and environment-friendly anti-freezing solution for water system engine |
| CN110433445B (en) * | 2019-08-16 | 2021-03-19 | 陕西胜捷瑞能消防科技有限公司 | Low-temperature water-based extinguishing agent and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000016619A1 (en) * | 1998-09-21 | 2000-03-30 | 21St Century Medicine, Inc. | Polyvinyl alcohol compounds for inhibition of ice growth |
| CN1583939A (en) * | 2003-08-18 | 2005-02-23 | 侯宏森 | Efficient multifunctional low-temperature resisting antifreezing fluid |
| CN1730601A (en) * | 2005-08-15 | 2006-02-08 | 杨毅男 | Multifunctional antifreeze vehicle cooling liquid |
-
2009
- 2009-12-02 CN CN2009102289439A patent/CN101705078B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000016619A1 (en) * | 1998-09-21 | 2000-03-30 | 21St Century Medicine, Inc. | Polyvinyl alcohol compounds for inhibition of ice growth |
| CN1583939A (en) * | 2003-08-18 | 2005-02-23 | 侯宏森 | Efficient multifunctional low-temperature resisting antifreezing fluid |
| CN1730601A (en) * | 2005-08-15 | 2006-02-08 | 杨毅男 | Multifunctional antifreeze vehicle cooling liquid |
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