CN102559153A - Heavy-duty engine coolant and preparation method thereof - Google Patents
Heavy-duty engine coolant and preparation method thereof Download PDFInfo
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- CN102559153A CN102559153A CN2012100135851A CN201210013585A CN102559153A CN 102559153 A CN102559153 A CN 102559153A CN 2012100135851 A CN2012100135851 A CN 2012100135851A CN 201210013585 A CN201210013585 A CN 201210013585A CN 102559153 A CN102559153 A CN 102559153A
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Abstract
The invention relates to heavy-duty engine coolant and a preparation method thereof. The heavy-duty engine coolant consists of ethylene glycol, aliphatic monocarboxylic acid, aliphatic dicarboxylic acid and alkali metal salt of the ethylene glycol, aliphatic monocarboxylic acid, aliphatic dicarboxylic acid, tert-butylbenzoic acid, benzoic acid, organic phosphate, molybdate, sodium nitrite, corrosion inhibitor for copper, defoamer and deionized water; and the heavy-duty engine coolant does not contain inorganic salt except molybdate and nitrite which are required by the heavy-duty standard, and is a full-formula heavy-duty engine coolant based on an organic additive technology (OAT). The technology can effectively reduce the cavitation corrosion of a heavy-duty engine, reduces leakage of a sealing gasket of a water pump, and solves the problem that a shrinkage-compensating admixture is refilled difficultly in the using process of a low-silicate heavy-duty engine coolant.
Description
Technical field
The present invention relates to a kind of engine coolant and preparation method thereof, especially relate to a kind of heavy-duty engine quench liquid and preparation method thereof.
Background technology
Along with developing of automobile industry, the raising of heavy-duty engine piston mean effective pressure makes the vibration aggravation of mover, and the temperature of mover is improved.What heavy-duty engine and light load engine-cooling system had a great difference is that it adopts the wet cylinder liner lining, and quench liquid directly contacts with cylinder sleeve.Because the severity of heavy-duty engine design, mechanism, material and applying working condition has determined the quench liquid of its use to have requirements at the higher level than common light load mover.During heavy-duty engine work; Cylinder sleeve produces high-frequency vibration; Foam constantly produces along with high-frequency vibration and breaks; Metal oxide film surface is come off, fatigure failure rapidly occurs and form cavitation corrosion, for head it off requires to adopt the heavy-duty engine quench liquid with good cavitation corrosion resisting ability.The quench liquid FAQs of heavy-duty engine is that cylinder sleeve spot corrosion and water pump are sewed at present.
Aspect heavy loading quench liquid standard, there are ASTM D 6210 " full formula heavy-duty engine quench liquid " and ASTMD4985 " low silicate-type heavy-duty engine quench liquid " in the U.S..China is according to ASTM standard, among the NB/SH/T 0521-2010 " engine coolant " of new revision, also formulated the product standard that the full formula heavy loading is started quench liquid with reference to ASTM D 6210.The current use present situation of China is most of vehicle filling light load engine coolant, has only the heavy vehicle of minority engine intake, adopts low silicate-type heavy-duty engine quench liquid according to the vehicle specification sheets.Low silicate-type heavy-duty engine quench liquid in use will add the SCA strengthening agent according to the cycle, yet when quench liquid reduced, additional SCA was the thing of part difficulty, because be difficult to know consumed how many inhibiter.In addition, the problem that low silicate-type heavy-duty engine quench liquid also exists silicate to separate out in using, this problem is the hang-up that runs in the use of heavy loading engine coolant, and the adding of SCA, it is more complicated to make silicate separate out problem.Separating out of silicate also causes water pump packing ring seepage, this mainly be since the heavy loading quench liquid in use precipitated silicic acid salt with contain solids more due to.Because influence factor is many, water pump packing ring leakage problems is difficult to solve.In order to prevent that to greatest extent silicate from separating out, heavy loading quench liquid mesosilicic acid salt usage quantity can not be too high.
Chinese patent CN101602936 B discloses a kind of heavy-duty commercial vehicle low silicon content coolant liquid that is adapted to; Its main body adopts a large amount of inorganic salt compound corrosion inhibitors; Be need be with the technology of strengthening agent to ASTM D4985 standard; Separating out with inorganic salt solid fouling problem of silicate is comparatively outstanding, and water pump packing ring seepage is serious.The disclosed heavy-duty engine quench liquid of patent CN101210172A contains inorganic salt such as more borax, does not have composite any organic carboxyl acid, and its technology is difficult to solve to the corrosion of cooling system aluminium.The disclosed heavy-duty engine quench liquid of Chinese patent CN101550332A wherein contains arsenic iodine highly toxic substance.And above-mentioned three kinds of technology all belong to low silicate-type quench liquid, do not satisfy the requirement of ASTM D 6210 " full formula heavy-duty engine quench liquid ".Satisfying the heavy-duty engine quench liquid of ASTM D 6210 does not appear in the newspapers.
Summary of the invention
The present invention has designed a kind of heavy-duty engine quench liquid and preparation method thereof, and the technical problem of its solution is that the quench liquid of existing heavy-duty engine causes cylinder sleeve spot corrosion and water pump to sew easily.
In order to solve the technical problem of above-mentioned existence, the present invention has adopted following scheme:
A kind of heavy-duty engine quench liquid is characterized in that, by following component ratio through mixing together:
Component weight percentage
Terepthaloyl moietie 30～94%;
Monobasic aliphatic carboxylic acid or its an alkali metal salt 0.5～5.0%;
Binary aliphatic carboxylic acid or its an alkali metal salt 0.5～8.0%;
P t butylbenzoic acid 0.1～1.0%;
TRIMETHOXY BENZOIC ACID (FOR MANUFACTURING OF T.M. 0.1～2.5%;
Organophosphate 0.01～1.5%;
Molybdate 0.01～0.5%;
Sodium Nitrite 0.1～1.0%;
Copper inhibitor 0.01～0.3%;
Skimmer 0.002～0.5%;
The deionized water surplus.
Further, said monobasic aliphatic carboxylic acid is a kind of or any two kinds of combinations in caproic acid, enanthic acid, sad, isocaprylic acid, n-nonanoic acid, capric acid, neodecanoic acid, undecanoic acid and the dodecylic acid; Said monobasic aliphatic carboxylic acid an alkali metal salt is a kind of or any two kinds of combinations in caproic acid, enanthic acid, sad, isocaprylic acid, n-nonanoic acid, capric acid, neodecanoic acid, undecanoic acid and the dodecylic acid an alkali metal salt.Be first-selection with sad and isocaprylic acid especially wherein.Monocarboxylic introducing can effectively suppress the spot corrosion of duraluminum and cast iron.
Further, said binary aliphatic carboxylic acid is a kind of or any multiple combination in hexanodioic acid, pimelic acid, suberic acid, nonane diacid and the sebacic acid; Especially be first-selection with suberic acid and sebacic acid.Said binary aliphatic carboxylic acid an alkali metal salt is a kind of or any multiple combination in hexanodioic acid, pimelic acid, suberic acid, nonane diacid and the sebacic acid an alkali metal salt.Di-carboxylic acid can prevent each metal all-round protection of engine-cooling system, and is especially more effective to the protection of cast aluminium alloy and scolding tin.Di-carboxylic acid can form complex compound with calcium, mg ion in hardness water, improved the resistance to hard water of quench liquid.
Further, said organophosphate is a kind of in onodoidecyl phosphonic acid ester, phosphotriester, the phenolic ether SULPHOSUCCINIC ACID ESTER.With the phosphotriester is first-selected.The ASI 80 inferior like French sieve ground.The adding of organophosphate has solved domestic and international OAT technology quench liquid and has made duraluminum blackout and cast iron plated film problem.Organophosphate is composite a spot of fatty amide has solved the solubility problem of SULPHOSUCCINIC ACID ESTER.
Further, said p t butylbenzoic acid and said TRIMETHOXY BENZOIC ACID (FOR MANUFACTURING OF T.M. weight proportion are 1.2:1 to 1.5:1.Ratio with 1.38:1 is the best.P t butylbenzoic acid and TRIMETHOXY BENZOIC ACID (FOR MANUFACTURING OF T.M. composite solved industry and it is generally acknowledged that Sodium Benzoate is the inhibiter of ferrous metal, and below 5% to the disadvantageous problem of cast iron.
Further, said molybdate is a kind of or multiple arbitrarily in Sodium orthomolybdate, Potassium orthomolybdate, ammonium molybdate and the lithium molybdate.
Further, weight proportion is 1:3 to 1:6 between said molybdate and the said Sodium Nitrite.With 1:4.1 is best.Molybdate and Sodium Nitrite synergistic corrosion inhibitor through to behind the ratio optimization, have not only improved the anti-cavitation corrosion performance of quench liquid greatly, have also reduced the usage quantity of Sodium Nitrite, reduce nitrite aggravation duraluminum heat transfer corrosive risk.
Further, said copper inhibitor is selected from a kind of or multiple arbitrarily in benzotriazole, TTA and the mercapto benzothiazole.First-selected benzotriazole and TTA.
Further, said skimmer is selected from the combination of organo-siloxane and poly phosphate.
Further, the weight proportion of said organo-siloxane and said poly phosphate is 1:3.Organic acid inhibitor is to produce a large amount of foams than the defective of inorganic salt inhibiter, and is difficult for eliminating.Independent organo-siloxane skimmer can not solve the foam control problem of OAT technology.Through a large amount of research, with organo-siloxane and the composite skimmer of poly phosphate, what efficiently solve quench liquid presses down bubble and froth breaking problem.
A kind of preparation method of heavy-duty engine quench liquid may further comprise the steps:
At first, according to each amount of substance of prescription regulation, get in an amount of terepthaloyl moietie and the deionized water input reaction kettle, stirred at normal temperatures 20 minutes;
Secondly and then get an amount of aliphatic carboxylic acid and an alkali metal salt thereof, p t butylbenzoic acid, TRIMETHOXY BENZOIC ACID (FOR MANUFACTURING OF T.M., molybdate, molybdate, Sodium Nitrite, copper inhibitor adds in the reaction kettle successively, stirs after 60 minutes;
At last, organophosphate composite fatty amide, add the organophosphate after the modification, stirs after 10 minutes, add composite in proportion good skimmer again, get final product until dissolving fully.
This heavy-duty engine quench liquid and preparation method thereof has following beneficial effect:
(1) heavy-duty engine quench liquid of the present invention is the technological full formula heavy loading quench liquids of a kind of OAT owing to do not contain except that the molybdate of heavy loading standard-required, inorganic salt nitrite.Can effectively reduce the cavitation corrosion of heavy-duty engine, reduce the water pump packing pad and reveal, overcome the difficult point that SCA is added in the use of low silicate-type heavy-duty engine quench liquid.
(2) the present invention passes through the cavitation pitting evaluation of inhibiter such as fatty monocarboxylic acid, fat dicarboxylic acid, Sodium Nitrite, Sodium orthomolybdate to the cylinder sleeve of engine cast iron quality; Optimize the synergy between each inhibiter, filtered out the excellence prescription that can prevent effectively that interior all metals that contacted of engine-cooling system and non-metallic material burn into from particularly preventing the heavy-duty engine cavitation corrosion.
(3) the present invention is at the anti-air pocket inhibiter of the technical introducing of OAT, the cooling fluid power is reduced separate out because of inorganic salt to cause water pump seal to be revealed, and remedied the defective that use need add the SCA strengthening agent, and life cycle prolongs greatly.
Description of drawings
Fig. 1: use the existing design sketch that uses the test cast iron test specimen of low silicate-type A quench liquid;
Fig. 2: use the existing design sketch that uses the test cast iron test specimen of low silicate-type B quench liquid;
Fig. 3: the design sketch that uses the test cast iron test specimen of quench liquid of the present invention.
Embodiment
Cooling liquid formulation of the present invention has obtained economical rationality and the excellent formula combination of technology through a large amount of screening experiments.Table 1 is 8 Example formulations:
Engine coolant performance index data of the present invention see the following form 2:
In order to prove that heavy-duty engine quench liquid of the present invention is superior to conventional low silicate-type heavy loading quench liquid to metal protection, three kinds of quench liquids have been carried out contrast corrosion test and UW air pocket vibrations corrosion test, the corrosion contrast and experiment sees the following form 3:
Illustrated in figures 1 and 2, under low silicate-type A quench liquid and the effect of low silicate-type B quench liquid, the surface all forms a large amount of cavitation corrosions to UW air pocket vibrations corrosion test cast iron test specimen respectively.But as shown in Figure 3, the test cast iron test specimen smooth surface under the engine coolant effect of the present invention does not form a large amount of cavitation corrosions.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obvious realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; Or design of the present invention and technical scheme are directly applied to other occasion without improving, all in protection scope of the present invention.
Claims (11)
1. a heavy-duty engine quench liquid is characterized in that, by following component ratio through mixing together:
Component weight percentage
Terepthaloyl moietie 30～94%;
Monobasic aliphatic carboxylic acid or its an alkali metal salt 0.5～5.0%;
Binary aliphatic carboxylic acid or its an alkali metal salt 0.5～8.0%;
P t butylbenzoic acid 0.1～1.0%;
TRIMETHOXY BENZOIC ACID (FOR MANUFACTURING OF T.M. 0.1～2.5%;
Organophosphate 0.01～1.5%;
Molybdate 0.01～0.5%;
Sodium Nitrite 0.1～1.0%;
Copper inhibitor 0.01～0.3%;
Skimmer 0.002～0.5%;
The deionized water surplus.
2. according to the said heavy-duty engine quench liquid of claim 1, it is characterized in that: said monobasic aliphatic carboxylic acid is a kind of or any two kinds of combinations in caproic acid, enanthic acid, sad, isocaprylic acid, n-nonanoic acid, capric acid, neodecanoic acid, undecanoic acid and the dodecylic acid; Said monobasic aliphatic carboxylic acid an alkali metal salt is a kind of or any two kinds of combinations in caproic acid, enanthic acid, sad, isocaprylic acid, n-nonanoic acid, capric acid, neodecanoic acid, undecanoic acid and the dodecylic acid an alkali metal salt.
3. according to claim 1 or 2 said heavy-duty engine quench liquids, it is characterized in that: said binary aliphatic carboxylic acid is a kind of or any multiple combination in hexanodioic acid, pimelic acid, suberic acid, nonane diacid and the sebacic acid; Said binary aliphatic carboxylic acid an alkali metal salt is a kind of or any multiple combination in hexanodioic acid, pimelic acid, suberic acid, nonane diacid and the sebacic acid an alkali metal salt.
4. according to claim 1,2 or 3 said heavy-duty engine quench liquids, it is characterized in that: said organophosphate is a kind of in onodoidecyl phosphonic acid ester, phosphotriester, the phenolic ether SULPHOSUCCINIC ACID ESTER.
5. according to the said heavy-duty engine quench liquid of claim 4, it is characterized in that: said p t butylbenzoic acid and said TRIMETHOXY BENZOIC ACID (FOR MANUFACTURING OF T.M. weight proportion are 1.2:1 to 1.5:1.
According to claim 1 to 5 to any one said heavy-duty engine quench liquid, it is characterized in that: said molybdate is a kind of or multiple arbitrarily in Sodium orthomolybdate, Potassium orthomolybdate, ammonium molybdate and the lithium molybdate.
7. according to the said heavy-duty engine quench liquid of claim 6, it is characterized in that: weight proportion is 1:3 to 1:6 between said molybdate and the said Sodium Nitrite.
8. according to the said heavy-duty engine quench liquid of claim 1, it is characterized in that: said copper inhibitor is selected from a kind of or multiple arbitrarily in benzotriazole, TTA and the mercapto benzothiazole.
9. according to the said heavy-duty engine quench liquid of claim 1, it is characterized in that: said skimmer is selected from the combination of organo-siloxane and poly phosphate.
10. according to the said heavy-duty engine quench liquid of claim 9, it is characterized in that: the weight proportion of said organo-siloxane and said poly phosphate is 1:3.
11. the preparation method of any one heavy-duty engine quench liquid of claim 1 to 10 may further comprise the steps:
At first, according to each amount of substance of prescription regulation, get in an amount of terepthaloyl moietie and the deionized water input reaction kettle, stirred at normal temperatures 20 minutes;
Secondly and then get an amount of aliphatic carboxylic acid and an alkali metal salt thereof, p t butylbenzoic acid, TRIMETHOXY BENZOIC ACID (FOR MANUFACTURING OF T.M., molybdate, molybdate, Sodium Nitrite, copper inhibitor adds in the reaction kettle successively, stirs after 60 minutes;
At last, organophosphate composite fatty amide, add the organophosphate after the modification, stirs after 10 minutes, add composite in proportion good skimmer again, get final product until dissolving fully.
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| CN104312547A (en) * | 2014-10-24 | 2015-01-28 | 河北铂润化工科技有限公司 | Cavitation erosion-resistant antifreeze coolant solution and preparation method thereof |
| CN104419385A (en) * | 2013-09-10 | 2015-03-18 | 中国石油化工股份有限公司 | Cooling liquid for heavy-duty engine and preparation method of cooling liquid |
| CN105086951A (en) * | 2015-09-15 | 2015-11-25 | 江苏锦宇环境工程有限公司 | Preparation method of waxy petal automobile antifreezing coolant |
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| CN104312547A (en) * | 2014-10-24 | 2015-01-28 | 河北铂润化工科技有限公司 | Cavitation erosion-resistant antifreeze coolant solution and preparation method thereof |
| CN104312547B (en) * | 2014-10-24 | 2017-12-29 | 河北铂润化工科技有限公司 | A kind of anti-cavitation pitting anti-freeze cooling liquid and preparation method thereof |
| CN106318591A (en) * | 2015-06-29 | 2017-01-11 | 鞍钢股份有限公司 | Antifoaming agent used for water glycol fire-resistant hydraulic fluid |
| CN105086951A (en) * | 2015-09-15 | 2015-11-25 | 江苏锦宇环境工程有限公司 | Preparation method of waxy petal automobile antifreezing coolant |
| CN105086951B (en) * | 2015-09-15 | 2018-12-14 | 上海伟奕传动轴配件有限公司 | A kind of preparation method of wax petal Antifreezing/Cooling Fluids for Automotives |
| CN109148915A (en) * | 2017-06-28 | 2019-01-04 | 中国石油化工股份有限公司 | A kind of fuel cell coolant liquid and its application |
| CN109666459B (en) * | 2017-10-16 | 2021-01-15 | 中国石油化工股份有限公司 | High-temperature-resistant long-life engine coolant |
| CN109666459A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | A kind of long-life engine coolant liquid resistant to high temperatures |
| CN109837071A (en) * | 2017-11-24 | 2019-06-04 | 北京蓝星清洗有限公司 | A kind of coolant liquid and preparation method thereof for wind power generating set |
| CN109837071B (en) * | 2017-11-24 | 2021-03-23 | 北京蓝星清洗有限公司 | Cooling liquid for wind generating set and preparation method thereof |
| CN110318056A (en) * | 2019-05-24 | 2019-10-11 | 清华大学天津高端装备研究院 | A kind of water-base metal galvanic corrosion inhibitor and preparation method |
| CN110318056B (en) * | 2019-05-24 | 2021-03-30 | 清华大学天津高端装备研究院 | Water-based metal galvanic couple corrosion inhibitor and preparation method thereof |
| CN111560237A (en) * | 2020-06-03 | 2020-08-21 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Cooling liquid for diesel locomotive |
| CN111978932A (en) * | 2020-07-09 | 2020-11-24 | 纯牌科技股份有限公司 | Organic corrosion inhibition cooling liquid and preparation method thereof |
| CN112501619A (en) * | 2020-11-30 | 2021-03-16 | 东风汽车集团有限公司 | All-organic additive formula for light-load glycol type cooling liquid |
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Address after: 101318 Beijing city B District Shunyi District Tianzhu Airport Industrial Zone Anxiang Street No. 5 Applicant after: BEIJING BLUESTAR CLEANING CO., LTD. Address before: 101318 Beijing City, Shunyi District Airport Industrial Zone B Anxiang Road No. 5 Applicant before: Beijing Bluestar Technology Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: BEIJING BLUESTAR TECHNOLOGY CO., LTD. TO: BEIJING BLUESTAR WASHING CO., LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |