CN102286271A - Mining automobile engine coolant and preparation method thereof - Google Patents
Mining automobile engine coolant and preparation method thereof Download PDFInfo
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Abstract
The invention relates to the technical field of a mining automobile engine coolant. The mining automobile engine coolant is prepared from the following raw materials in percentage by weight: 1.7 to 3.3 percent of octyl capric acid, 1.1 to 1.7 percent of sebacic acid, 0.5 to 1.2 percent of 2-ethyl caproic acid, 0.08 to 0.36 percent of methyl benzotriazole, 0.6 to 0.95 percent of sodium molybdate, 0.6 to 0.95 percent of sodium nitrite, 0.01 to 0.04 percent of polyethylene glycol, 0.65 to 1.6 percent of spirit light fast yellow, 40 to 70 percent of ethylene glycol and the balance of deionized water. The mining automobile engine coolant has the advantages that the coolant has the comprehensive protection capability and a corrosion control effect on six metals such as red copper, brass, carbon steel, cast iron, soldering tin, cast aluminium and the like in cooling systems of a mine heavy-duty dump truck diesel engine and a mine large-scale industrial diesel engine and particularly has very obvious protection performance on the copper metal, so that the performance of the coolant product is long-acting and stable.
Description
Technical field
The present invention relates to a kind of engine coolant, particularly a kind of mine truck engine coolant and preparation method thereof.
Background technology
Automobile cooling on the domestic market is applicable to that common goods vehicle, highway heavy-duty car, passenger vehicle and common engineering machinery use at present.It at automobile light-weighted development research and develop, light-weighted engine cylinder-body, cylinder head, radiator of water tank, water pump etc. are by aluminium and aluminium alloy manufacturing.So require cooling fluid will get well, mainly lay particular emphasis on the corrosion etc. of conducting heat of the spot corrosion that prevents aluminium alloy and cast aluminium alloy to the protective value of aluminium alloy.General-utility car, highway heavy-duty car cooling system adopt dry liner, and cooling fluid does not contact with cylinder sleeve.Non-highway adopts wet liner with mine heavy duty dump truck cooling system, and cooling fluid contacts with cylinder sleeve.
The metallic substance that constitutes cooling system mainly contains 6 kinds of metals such as red copper, brass, carbon steel, cast iron, scolding tin, cast aluminium, and for aluminium-containing alloy goods hardly in mining heavy duty dump truck and the mine large-scale engineering machinery diesel motor cooling system, radiator of water tank is by manufacturings such as brass, red copper, scolding tin.Common cooling fluid exposes such as serious problems such as radiator of water tank corrosion in use in the mine.Chinese patent CN200610156131.4, name is called a kind of heavy duty engine cooling liquid formulation and preparation method.This patent uses mercaptobenzothiazole sodium as copper inhibitor, and filling a prescription is inorganic type.Inorganic type cooling fluid incompatibility mine heavy loading diesel motor cooling system.
At present, cooling fluid mainly is a mercaptobenzothiazole to the inhibiter that adopts on the copper metal protection particularly to non-ferrous metal both at home and abroad.The corrosion inhibition of mercaptobenzothiazole; mainly be to rely on the anionic group of sulphur and azo-cycle and the active copper atom on the copper surface or cupric ion to produce a kind of chemisorption; thereby or and then the sequestering action that takes place form one deck compact protective film; prevent copper dissolution, copper radiator is protected.
In use there are three problems in this inhibiter:
(1) mercaptobenzothiazole is when pH value reduces, and mercapto groups dissociates, and causes separating out in the solution insolubles.The solid mercaptobenzothiazole adds fashionable, occurs floating on the liquid level.
(2) under oxygen in solution or the oxygenant effect, oxidation generation disulphide may take place and be precipitated out from solution in mercaptobenzothiazole.
(3) the mercaptobenzothiazole chlorine resistance is relatively poor, when having chlorine to exist in solution, is easily become disulphide by oxychlorination, and original protective membrane is destroyed.
Because the special construction of mine truck diesel motor cooling system and working conditions be problem such as harshness very; mercaptobenzothiazole lacks specific aim to the mine truck diesel motor cooling system copper metal protection of heavy loading, thereby causes copper radiator and other metallic corrosion.
Use methyl benzotriazole to have as the Chinese patent of the organic type cooling fluid of inhibiter: CN201010602781.3, name is called a kind of engine is not had water coolant; CN201010515736.4, name is called full organic engine cooling liquid; CN01131412.5, name is called organic engine cooling liquid.Described these three patent formulations contain methyl benzotriazole, other components of synergistic slow corrosion effect have been reached, be applicable to that general-utility car, highway heavy-duty car cooling system adopt the general automobile cooling fluid of dry liner, inapplicable mine heavy loading diesel motor cooling system wet liner suppresses the requirement of cavitation pitting.
Summary of the invention
The purpose of this invention is to provide a kind of mine truck engine coolant.
A further object of the present invention provides a kind of preparation method of mine truck engine coolant.
Solve the complex protection capability of cooling fluid to 6 kinds of metals such as red copper, brass, carbon steel, cast iron, scolding tin, cast aluminium in mine heavy duty dump truck diesel motor and the mine large-scale engineering machinery diesel motor cooling system, to copper corrosion of metal restraining effect, make the cooling fluid product performance reach long-acting stable especially.
The present invention realizes by following technical proposals.
A kind of mine truck engine coolant is characterized in that it is to be mixed by following weight percent proportion raw material to make through stirring:
Hot capric acid 1.7～3.3%
Sebacic acid 1.1～1.7%
2 ethyl hexanoic acid 0.5～1.2%
Methyl benzotriazole 0.08～0.36%
Sodium orthomolybdate 0.6～0.95%
Sodium Nitrite 0.6～0.95%
Polyoxyethylene glycol 0.01～0.04%
The molten Huang of anti-Sai 0.65～1.6% of alcohol
Deionized water 30～60%
Ethylene glycol 40～70%
Wherein, Sodium orthomolybdate Na
2M
OO
42H
2O, Sodium Nitrite NaNO
2Be inhibiter; Polyoxyethylene glycol [H(OCH
2CH
2) n OH] be kilfoam, n is 400-600; The molten organic yellow C of alcohol
16H
13N
4NaO
4S is a staining agent, and deionized water is the water of specific conductivity≤20 μ s/cm.
A kind of preparation method of mine truck engine coolant is as follows:
A) at first the ethylene glycol of said ratio is injected No. 1 dispenser, deionized water injects in No. 2 dispensers,
B) the more hot capric acid of said ratio, sebacic acid and 2 ethyl hexanoic acid are injected in No. 1 dispenser, stirred 15 minutes,
C) again the methyl benzotriazole of said ratio, Sodium orthomolybdate, Sodium Nitrite are injected in No. 2 dispensers, stirred 15 minutes,
D) again with in No. 1 dispenser of the yellow injection of the pure molten anti-Sai of said ratio, stirred 5 minutes,
E) again the poly(oxyethylene glycol) 400 of said ratio is injected in No. 2 dispensers, was stirred 5 minutes,
F) again the mixing solutions in No. 2 dispensers is got in No. 1 dispenser, was stirred 10 minutes,
G) carry out product quality inspection at last, product is input to the finished product jar after qualified to get final product.
Cooling fluid of the present invention has been used methyl benzotriazole also to be referred to as 4-methyl 1H-benzotriazole to be the copper special corrosion inhibitor, can with Sodium orthomolybdate Na
2M
OO
42H
2O, Sodium Nitrite NaNO
2Play synergy.And start with from the collaborative formulating of organic acid inhibitor and copper special corrosion inhibitor, having found organic monoprotic acid and diprotic acid is best proportioning between hot capric acid, sebacic acid, the 2 ethyl hexanoic acid, solves the metallic surface local corrosion and prevents the problem that concerns of general corrosion.Adopt above-mentioned organic type prescription, metal in the cooling system and non-ferrous metal surface are carried out integrated protection.The hot capric acid of the present invention also is referred to as 2-ethyl-2,5-dimethyl caproic acid; Sebacic acid also is referred to as suffering 1,8-dioctyl phthalate.
Use methyl benzotriazole as the copper special corrosion inhibitor.It is by a hydrogen ion in the cupric ion displacement methyl benzotriazole, again with its molecule on nitrogen-atoms generate multipolymer with coordinate bond.This multipolymer is that a kind of complex compound of stabilizer pole is adsorbed on the metallic surface, forms densification, stable, the inert protective membrane of one deck, and the metallic surface is protected.Simultaneously, methyl benzotriazole has also been protected metals such as the steel in the cooling system, cast iron except having protected the copper metal.Because in case the copper metallic corrosion is serious, after cupric ion in the water surpasses certain concentration, because the chemically reactive of iron substantially exceeds copper, the reduction of cupric ion will take place, cause the galvanic corrosion and the galvanic corrosion of steel, cast iron, the corrosion that shows the metallic surface is exactly corrosion and cavitation pitting.
Use deionized water control cl content.Influential to mercaptobenzothiazole, benzotriazole, methyl benzotriazole performance corrosion inhibition through the evidence cl content, methyl benzotriazole is better than mercaptobenzothiazole, benzotriazole.Concrete measure of control be use that computer control Pyatyi is softening, purification, deionized water treatment facility, production cooling fluid water is handled, reduce the content of chlorion in the cooling fluid.Chloride ion content reaches below the 5mg/kg after testing, below national Specification 25mg/kg.The reduction of chloride ion content improves the inhibition efficiency of methyl benzotriazole, has guaranteed that whole process has barrier propterty.
Cooling fluid of the present invention has been used kilfoam and staining agent.The cooling fluid that does not add kilfoam will produce a large amount of foams under water pump circulates stirring at a high speed.Foam is the one of the main reasons that cavitation pitting takes place in the metallic surface.Contain gas in the foam, make cooling fluid conduct the ability drop of heat, cause engine-cooling system to produce high temperature phenomenon.A large amount of foams also can make metal produce thermograde, and the cast iron cylinder cap is burst.Therefore, cooling fluid of the present invention has been used the kilfoam polyoxyethylene glycol, suppresses foamy and produces.
Take place to leak or seepage in order to distinguish cooling fluid and other liquid, particularly engine or cooling system, can check the reason that is out of order easily according to liquid color.Therefore, cooling fluid of the present invention has been used the molten organic yellow of staining agent alcohol.Also increased simultaneously the aesthetic appearance of cooling fluid.
Owing to adopted technique scheme; make the present invention compared with prior art have following advantage and effect: this cooling fluid is to the complex protection capability and the effect of corrosion inhibition of 6 kinds of metals such as red copper, brass, carbon steel, cast iron, scolding tin, cast aluminium in mine heavy duty dump truck diesel motor and the mine large-scale engineering machinery diesel motor cooling system; particularly particularly outstanding to the protection of copper metal, make the cooling fluid product performance reach long-acting stable.
Mine truck engine coolant rust protection of the present invention, protection against corrosion, anti-cavitation pitting effect be obvious, antifreeze, anti-boils satisfactory for resultly, has reached organic type, long-acting, safety, environment protection requirement.
Embodiment
The following examples and detection testing data can illustrate in greater detail the present invention, but do not limit the present invention in any way.
Select different proportioning raw materials can obtain the cooling fluid of different performance.
Embodiment 1
Make through stirring by following weight percent proportion raw material mixing:
Hot capric acid 1.7%
Sebacic acid 1.1%
2 ethyl hexanoic acid 0.5%
Methyl benzotriazole 0.08%
Sodium orthomolybdate 0.6%
Sodium Nitrite 0.6%
Poly(oxyethylene glycol) 400 0.01%
The molten Huang of anti-Sai 0.65% of alcohol
Ethylene glycol 50%
Surplus is a deionized water.
Its preparation method is the same.
Product performance: antifreeze, the anti-stable performance of boiling prevents that the metallic corrosion performance from reaching quality standards.Make the used additives raw material few, production cost is low.Cooling fluid product glassware corrosion test of the present invention detects data and simulation and uses corrosion test to detect data to see Table 1 and table 2.
?
The embodiment of the invention 1 cooling fluid product glassware corrosion test detects data sheet 1
The embodiment of the invention 1 cooling fluid product simulation uses corrosion test to detect data sheet 2
Embodiment 2
Make through stirring by following weight percent proportion raw material mixing:
Hot capric acid 2.5%
Sebacic acid 1.5%
2 ethyl hexanoic acid 1.0%
Methyl benzotriazole 0.27%
Molybdenum SODIUMNITRATE 0.8%
Sodium Nitrite 0.8%
Macrogol 200 0.03%
The molten Huang of anti-Sai 1.2% of alcohol
Ethylene glycol 40%
Surplus is a deionized water.
Its preparation method is the same.
Product performance: antifreeze, the anti-stable performance of boiling, prevent the metallic corrosion performance, prevent that particularly the non-ferrous metal corrosive nature is outstanding.Make the used additives reasonable raw material proportioning, production cost is moderate.Cooling fluid product glassware corrosion test of the present invention detects data and simulation and uses corrosion test to detect data to see Table 3 and table 4.
The embodiment of the invention 2 cooling fluid product glassware corrosion tests detect data sheet 3
The embodiment of the invention 2 cooling fluid product simulations use corrosion test to detect data sheet 4
Embodiment 3
Make through stirring by following weight percent proportion raw material mixing:
Hot capric acid 3.3%
Sebacic acid 1.7%
2 ethyl hexanoic acid 1.2%
Methyl benzotriazole 0.36%
Molybdenum SODIUMNITRATE 0.95%
Sodium Nitrite 0.95%
Polyethylene Glycol-600 0.04%
The molten Huang of anti-Sai 1.6% of alcohol
Ethylene glycol 60%
Surplus is a deionized water.
Its preparation method is the same.
Product performance: antifreeze, the anti-stable performance of boiling prevents that the metallic corrosion performance is outstanding.Make the used additives raw material more, production cost is higher, and cost performance is unreasonable.Cooling fluid product glassware corrosion test of the present invention detects data and simulation and uses corrosion test to detect data to see Table 5 and table 6.
The embodiment of the invention 3 cooling fluid product glassware corrosion tests detect data sheet 5
The embodiment of the invention 3 cooling fluid product simulations use corrosion test to detect data sheet 6
It is that automobile carrier energy utilization monitoring center of the Ministry of Communications, Chinese People's Liberation Army's oil plant and POL equipment detect test center and unit of the present invention laboratory that table 1-6 project data detects unit.
The strip inspection that the engine that reaches the time between overhaul is carried out proves that cylinder body, cylinder sleeve, water channel, water pump impeller, water pump cover, scatterer etc. are bright and clean with the cooling fluid surface in contact, not water breakthrough dirt, corrosion, burn into cavitation pitting phenomenon.
Mine truck engine coolant of the present invention, obtained feasible technically through a large amount of repetition tests, reasonably fill a prescription economically, its state of the art has reached Anshan iron and steel plant enterprises standard Q/AKFZ3-08 (2009) " heavy loading mine truck engine coolant product standard (ethylene glycol type) ", and every performance is higher than national sector standard SH/T0521-1999.
Mine truck engine coolant of the present invention; can provide resistance to frost according to national standard; be-25 ℃ ,-30 ℃ ,-35 ℃ ,-40 ℃ ,-45 ℃ of freezing point protections and-50 ℃ of six kinds of products, the corresponding anti-performance of boiling reaches 106.0 ℃, 106.5 ℃, 107.0 ℃, 107.5 ℃, 108.0 ℃ and 108.5 ℃ respectively.Through evidence, reach 2.5 years work-ing life at mine mine truck engine, be 1.5 ten thousand hours runs also, need not change cooling fluid in the overhaul phase.
Mine truck engine coolant of the present invention, solved the complex protection capability of cooling fluid to 6 kinds of metals such as red copper, brass, carbon steel, cast iron, scolding tin, cast aluminium in mine heavy duty dump truck diesel motor and the mine large-scale engineering machinery diesel motor cooling system, emphasis is to improve copper corrosion of metal restraining effect, makes the cooling fluid product performance reach long-acting stable.Product of the present invention is with a wide range of applications on the heavy duty dump truck diesel motor of mine.
Claims (5)
1. mine truck engine coolant is characterized in that it is to be made by following weight percent proportion raw material:
Hot capric acid 1.7～3.3%
Sebacic acid 1.1～1.7%
2 ethyl hexanoic acid 0.5～1.2%
Methyl benzotriazole 0.08～0.36%
Sodium orthomolybdate 0.6～0.95%
Sodium Nitrite 0.6～0.95%
Poly(oxyethylene glycol) 400 0.01～0.04%
The molten Huang of anti-Sai 0.65～1.6% of alcohol
Ethylene glycol 40～70%
Surplus is a deionized water,
Wherein, Sodium orthomolybdate Na
2M
OO
42H
2O, Sodium Nitrite NaNO
2Be inhibiter; Polyoxyethylene glycol [H(OCH
2CH
2) n OH] be kilfoam, n is 400-600; The molten organic yellow C of alcohol
16H
13N
4NaO
4S is a staining agent, and deionized water is the water of specific conductivity≤20 μ s/cm.
2. the preparation method of a mine truck engine coolant is characterized in that it is to be made by following weight percent proportion raw material:
Hot capric acid 1.7～3.3%
Sebacic acid 1.1～1.7%
2 ethyl hexanoic acid 0.5～1.2%
Methyl benzotriazole 0.08～0.36%
Sodium orthomolybdate 0.6～0.95%
Sodium Nitrite 0.6～0.95%
Poly(oxyethylene glycol) 400 0.01～0.04%
The molten Huang of anti-Sai 0.65～1.6% of alcohol
Ethylene glycol 40～70%
Surplus is a deionized water,
Concrete preparation method is as follows:
A) at first the ethylene glycol of said ratio is injected No. 1 dispenser, deionized water injects in No. 2 dispensers,
B) the more hot capric acid of said ratio, sebacic acid and 2 ethyl hexanoic acid are injected in No. 1 dispenser, stirred 15 minutes,
C) again the methyl benzotriazole of said ratio, Sodium orthomolybdate, Sodium Nitrite are injected in No. 2 dispensers, stirred 15 minutes,
D) again with in No. 1 dispenser of the yellow injection of the pure molten anti-Sai of said ratio, stirred 5 minutes,
E) again the poly(oxyethylene glycol) 400 of said ratio is injected in No. 2 dispensers, was stirred 5 minutes,
F) again the mixing solutions in No. 2 dispensers is got in No. 1 dispenser, was stirred 10 minutes,
G) carry out product quality inspection at last, product is input to the finished product jar after qualified to get final product.
3. mine truck engine coolant according to claim 1 is characterized in that being made by following weight percent proportion raw material:
Hot capric acid 1.7%
Sebacic acid 1.1%
2 ethyl hexanoic acid 0.5%
Methyl benzotriazole 0.08%
Sodium orthomolybdate 0.6%
Sodium Nitrite 0.6%
Polyoxyethylene glycol 0.01%
The molten Huang of anti-Sai 0.65% of alcohol
Ethylene glycol 50%
Surplus is a deionized water.
4. mine truck engine coolant according to claim 1 is characterized in that being made by following weight percent proportion raw material:
Hot capric acid 2.5%
Sebacic acid 1.5%
2 ethyl hexanoic acid 1.0%
Methyl benzotriazole 0.27%
Molybdenum SODIUMNITRATE 0.8%
Sodium Nitrite 0.8%
Macrogol 200 0.03%
The molten Huang of anti-Sai 1.2% of alcohol
Ethylene glycol 40%
Surplus is a deionized water.
5. mine truck engine coolant according to claim 1 is characterized in that being made by following weight percent proportion raw material:
Hot capric acid 3.3%
Sebacic acid 1.7%
2 ethyl hexanoic acid 1.2%
Methyl benzotriazole 0.36%
Molybdenum SODIUMNITRATE 0.95%
Sodium Nitrite 0.95%
Polyethylene Glycol-600 0.04%
The molten Huang of anti-Sai 1.6% of alcohol
Ethylene glycol 60%
Surplus is a deionized water.
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| CN2011102777069A CN102286271A (en) | 2011-09-19 | 2011-09-19 | Mining automobile engine coolant and preparation method thereof |
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|---|---|---|---|
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Cited By (7)
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| CN102559153A (en) * | 2012-01-17 | 2012-07-11 | 蓝星环境工程有限公司 | Heavy-duty engine coolant and preparation method thereof |
| CN103275676A (en) * | 2013-06-13 | 2013-09-04 | 鞍钢集团矿业公司 | Mining heavy-duty engine coolant |
| CN104018169A (en) * | 2014-05-30 | 2014-09-03 | 鞍钢集团矿业公司 | Cleaning solution for indissolvable water scale in mining automobile engine cooling system |
| CN109478656A (en) * | 2016-06-10 | 2019-03-15 | 帝国创新有限公司 | Corrosion-inhibiting coating |
| CN110591662A (en) * | 2019-09-27 | 2019-12-20 | 陈文广 | Preparation method of anticorrosive antifreezing solution |
| 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 |
| CN115404049A (en) * | 2021-05-28 | 2022-11-29 | 中国石油化工股份有限公司 | Cooling liquid and preparation method and application thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559153A (en) * | 2012-01-17 | 2012-07-11 | 蓝星环境工程有限公司 | Heavy-duty engine coolant and preparation method thereof |
| CN102559153B (en) * | 2012-01-17 | 2015-06-17 | 北京蓝星清洗有限公司 | Heavy-duty engine coolant and preparation method thereof |
| CN103275676A (en) * | 2013-06-13 | 2013-09-04 | 鞍钢集团矿业公司 | Mining heavy-duty engine coolant |
| CN104018169A (en) * | 2014-05-30 | 2014-09-03 | 鞍钢集团矿业公司 | Cleaning solution for indissolvable water scale in mining automobile engine cooling system |
| CN109478656A (en) * | 2016-06-10 | 2019-03-15 | 帝国创新有限公司 | Corrosion-inhibiting coating |
| CN109478656B (en) * | 2016-06-10 | 2023-08-29 | Ip2Ipo创新有限公司 | Corrosion resistant coating |
| CN110591662A (en) * | 2019-09-27 | 2019-12-20 | 陈文广 | Preparation method of anticorrosive antifreezing solution |
| 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 |
| CN115404049A (en) * | 2021-05-28 | 2022-11-29 | 中国石油化工股份有限公司 | Cooling liquid and preparation method and application thereof |
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Application publication date: 20111221 |