CN105255546A - Methanol engine lubricating oil and preparation method thereof - Google Patents
Methanol engine lubricating oil and preparation method thereof Download PDFInfo
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Abstract
The invention relates to methanol engine lubricating oil and preparation method thereof, and belongs to the technical field of lubricating oil. The methanol engine lubricating oil comprises the following components in parts by weight: 110 to 140 parts of basic oil, 0.05 to 0.1 parts of pyridine derivative, 0.5 to 0.7 parts of 4-fluoro-acetophenone-O-1,-(1 minute,3,4,-triazole) methylene oxime, 1 to 3 parts of organic amine, 0.5 to 2 parts of methyl benzotriazole, 0.5 to 1 part of epoxy polyaniline, 2 to 4 parts of metal cleaning agent, 1 to 3 parts of antioxidant, 4 to 6 parts of antiwear agent and 2 to 6 parts of rust inhibitor. The pyridine derivative and 4-fluoro-acetophenone-O-1,-(1 minute,3,4,-triazole) methylene oxime are added into the lubricating oil, so that the wear resistance of the lubricating oil is improved.
Description
Technical field
The present invention relates to a kind of methanol engine lubricating oil and preparation method thereof, belong to technical field of lubricating oil.
Background technology
In the whole oil consumption market of China, the consumption of gasoline, diesel oil has exceeded 50% of aggregate consumption, and wherein, traffic fuel accounts for more than 70%, the key point of this Ye Shi China energy structure contradiction.According to the prediction of automobile industry department, in following 20 years, the car owning amount of China quadruples on the basis of 2000.This just means, will more than 6,000 ten thousand to the year two thousand twenty China car owning amount.Only just will more than 200,000,000 tons to the consumption of gasoline, diesel oil.Along with the fast development of China's economic construction, to the demand of the energy also in growth at full speed, developing rapidly of the particularly rich and influential family that consumes of oil product---automobile and ic engine industry, further increases the energy dilemma sense of China.For the China that petroleum resources lack, no matter be consider from political or economic aspect, energy security has become unavoidable realistic problem.
Methanol gasoline refers to and methanol fractions is added in gasoline, with the M series propellant combination that methanol fuel additive is composite.Wherein, the modal M15 of being (adding 15% methyl alcohol in gasoline) clean methanol gasoline is vehicle fuel, under the condition not changing existing engine structure, can substitute gasoline product and use, and can be mixed with processed oil.The thermo-efficiency of Methanol Blends, dynamic property, startability, economy are good, can also reduce discharge.Product principal feature: 1, environmental protection, spatter property are given prominence to.Process of producing product adopts and cleans in technique without " three wastes ".After the burnings such as this product is not leaded, expellant gas cleans harmless, is conducive to improving urban environment.2, easy to use, without the need to changing device.If automobile uses oil liquefied gas fuel to increase special device, add auto cost.And methanol gasoline can use with petroleum products device simultaneously, not only save gasoline expense, but also transformation of the way installation cost can be saved, to be used alone or used in combination.3, compared with ethanol petrol, cost is low, raw material is easily purchased, wide material sources.1. ethanol (being commonly called as alcohol), it is mainly derived from grain, and material source is single, once hit by a natural calamity, the underproduction, raw material sources just become problem, and methyl alcohol is the byproduct of chemical fertilizer and the industry production such as pharmacy, coal, also industrial chemicals can be utilized to synthesize, and price is low to be held concurrently, and originates very extensive.2. more than 4000 yuan/ton, ethanol market price, and methyl alcohol is generally no more than 2000 yuan/ton, more expensive than methyl alcohol one times more than of ethanol.Meanwhile, ethanol petrol is blended in gasoline by the ethanol of 10%, and because ethanol itself is more expensive, gasoline price is also more expensive than methanol chemistry raw material, more expensive than methanol gasoline more than 800 yuan of comprehensive cost ethanol petrol per ton.4, produce not by limiting in season and scale.Methanol gasoline all can be produced throughout the year, compared with producing gasoline, lubricating wet goods product.Produce without the need to heating, pressurizeing, in anhydrous state.Industrial scale can determine according to the factor such as economic situation, market of our unit or individual, changeable.
Use methyl alcohol as fuel engine in the course of the work, still there will be a lot of problem.Such as: compare regular gasoline, in Alcohol engines machine oil, more pentane insolubles can be formed, will start to form white greasy filth when pollutent in machine oil (alcohol, gasoline, water) is increased to a certain degree, and white greasy filth increase along with the increase of pollutent.More it is worth noting: the vaporization heat of methyl alcohol is higher than regular gasoline, and volatile ratio is more difficult, more easily penetrate in lubricating oil.The infiltration of methyl alcohol, on the one hand, dilute lubricating oil can reduce the viscosity of oil product; On the other hand, the methanol extraction that lubricating oil additive can be infiltrated, lubricating oil rapid deterioration is worsened, then being transferred to beyond initial contact zone by methyl alcohol again makes cylinder wall upper area produce wearing and tearing, methanol gasoline has corrosive nature to engine and component thereof, just more needs lubricating oil should have good base number hold facility, corrosion inhibiting ability and abrasion resistance.CN101705144A provides a kind of lubricating oil for methanol-fueled engine, and it is made up of the component of following weight percent: metal detergent 2.2% ~ 5.2%, ashless dispersant 3.5% ~ 6.8%, antioxidant preservative 0.5% ~ 1.6%, high-temperature antioxidant 0.3% ~ 0.8%, viscosity index improver 6% ~ 1%, oiliness improver 2.8% ~ 6%, kilfoam 120ppm, metal antirusting agent 0.3% ~ 0.7%, base oil 62.7% ~ 83%, anti-emulsion 0.1% ~ 0.3%, metal extreme pressure anti-wear additives 1.0% ~ 4%, pour point depressant 0.3% ~ 0.9%.But this lubricating oil Problems existing is that base number retentivity is not high, abrasion resistance can be caused to decline after using for a long time.
Summary of the invention
The object of the invention is: provide a kind of methanol engine lubricating oil, by adding pyridine derivatives in lubricating oil, and adding the fluorine-based methyl phenyl ketone of 4--O-1 ,-(1 ', 3,4 ,-triazole) methylene radical oxime, makes the abrasion resistance of lubricating oil improve.
A kind of methanol engine lubricating oil, include following component by weight: base oil 110 ~ 140 parts, pyridine derivatives 0.05 ~ 0.1 part, the fluorine-based methyl phenyl ketone of 4--O-1,-(1 ', 3,4 ,-triazole) methylene radical oxime 0.5 ~ 0.7 part, organic amine 1 ~ 3 part, tolyltriazole 0.5 ~ 2 part, Epoxy polyaniline 0.5 ~ 1 part, metal detergent 2 ~ 4 parts, antioxidant 1 ~ 3 part, antiwear agents 4 ~ 6 parts, rust oxidation 2 ~ 6 parts.
Described base oil is selected from one or several the mixing in two class hydrogenated base oil 500SN, two class hydrogenated base oil 500N, three class hydrogenated base oil 500SN or three class hydrogenated base oil 500N.
Described pyridine derivatives is selected from one or several the mixing in 3,5-lutidine quaternary amine, 2,5-lutidine quaternary amines or 2,3,5-trimethylpyridine quaternary amine.
Described organic amine is selected from one or several the mixing in morpholine, Monoethanolamine MEA BASF, hexahydroaniline.
Described metal detergent is the alkyl benzene calcium sulfonate of base number between 500 ~ 600mgKOH/g, the sulfonic acid calcium salt of described alkyl benzene calcium sulfonate to be carbonatoms be straight or branched alkyl between C10 ~ C20.
Described antioxidant is 2,6 di t butyl phenol.
Described antiwear agents is zinc diaryl dithiophosphates.
Described rust oxidation is polyoxyethylene octyl phenyl ether.
The preparation method of above-mentioned lubricating oil, comprises the steps:
1st step: by base oil, pyridine derivatives, the fluorine-based methyl phenyl ketone of 4--O-1 ,-(1 ', 3,4 ,-triazole) methylene radical oxime, organic amine, tolyltriazole, Epoxy polyaniline mix, and stir, obtain mixture after heating up;
2nd step: add metal detergent, antioxidant, antiwear agents, rust oxidation in the mixture obtained in the 1st step, stirs after heating up, obtains lubricating oil.
In the 1st described step, the temperature of intensification is 45 ~ 55 DEG C, and churning time is 2 ~ 4 hours.
In the 2nd described step, the temperature of intensification is 40 ~ 50 DEG C, and churning time is 1 ~ 3 hour.
Beneficial effect
The present invention by adding pyridine derivatives in lubricating oil, and adds the fluorine-based methyl phenyl ketone of 4--O-1, and-(1 ', 3,4 ,-triazole) methylene radical oxime, makes the abrasion resistance of lubricating oil improve.
Embodiment
In Lubricant composition for gasoline engine provided by the invention, mainly include: base oil, pyridine derivatives, the fluorine-based methyl phenyl ketone of 4--O-1,-(1 ', 3,4 ,-triazole) methylene radical oxime, organic amine, tolyltriazole, Epoxy polyaniline, metal detergent, antioxidant, antiwear agents, rust oxidation.
Wherein, adding of pyridine derivatives can reduce the metallic corrosion that when methanol engine burns, the increase of acid number causes effectively, and then reduces wear.Organic-molybdenum can adopt the MOLYVAN 855 of your thing company of model Derby.
In the present invention the pyridine derivatives that is suitable for, can exemplify: one or several the mixing in 3,5-lutidine quaternary amine, 2,5-lutidine quaternary amines or 2,3,5-trimethylpyridine quaternary amine.
Find in addition in the present invention, add the fluorine-based methyl phenyl ketone of 4--O-1 in lubricating oil, the acidity that-(1 ', 3,4 ,-triazole) methylene radical oxime can prevent lubricating oil from causing after long-time running effectively increases.
Organic amine is selected from one or several the mixing in morpholine, Monoethanolamine MEA BASF, hexahydroaniline.
Base oil mentioned in the present invention, can be selected from mineral oil and ucon oil or their mixture.Described mineral oil can from lighting end mineral oil to last running mineral oil in viscosity, comprise alkane, cycloalkanes and mixing par-affinic-naphthenic types mineral lubricating oils that Witco 70 and hydrorefined, solvent treatment are crossed, usually I class, II class, the III class base oil of classifying according to American Petroleum Institute (API) (API) can be selected, common trade names comprise I class 150SN, 600SN, II class 100N, 150N etc.Ucon oil comprises polymerization hydrocarbon ils, alkyl benzene and its derivative, the example being polymerized hydrocarbon ils concrete includes but not limited to polybutene, polypropylene, propylene-isobutylene copolymers, the polybutene of chlorination, poly-(1-hexene), poly-(1-octene), poly-(1-decene), common trade names comprise PAO4, PAO6, PAO8, PAO10 etc., the concrete example of alkyl benzene and its derivative includes but not limited to as dodecylbenzene, Tetradecylbenzene, dinonyl benzene, two (2-ethylhexyl) benzene, alkyl benzene derivate comprises alkylating phenyl ether and alkylating diphenyl sulfide and derivative thereof, analogue and homologue.Another applicable type of ucon oil is Esters oil, comprise dicarboxylic acid (as phthalic acid, succsinic acid, alkyl succinic acid and alkenyl succinic acid, toxilic acid, nonane diacid, suberic acid, sebacic acid, FUMARIC ACID TECH GRADE, hexanodioic acid, linoleic acid dimer, propanedioic acid, alkyl propanedioic acid, alkenyl malonic) and various alcohol (as butanols, hexanol, dodecyl alcohol, 2-ethylhexyl alcohol, ethylene glycol, propylene glycol) and ester that condensation reaction generates or complex ester occur.The object lesson of these esters includes but not limited to the 2-ethylhexyl diester of Polycizer W 260, sebacic acid two (2-ethylhexyl) ester, the just own ester of FUMARIC ACID TECH GRADE acid two, dioctyl sebacate, diisooctyl azelate, two different decayl esters of azelaic acid, dioctyl phthalate (DOP), didecyl phthalate, sebacic acid two (larane base) ester, linoleic acid dimer.The lubricant base that another applicable type of ucon oil is Fischer-Tropsch method synthetic hydrocarbon oil and is obtained by art breading such as hydroisomerizing, hydrocracking, dewaxings this synthetic hydrocarbon oil.
Lubricant composition for gasoline engine of the present invention also containing conventional Lubricant composition for gasoline engine additive, to give subsidiary function, thus can provide the gasoline product engine oil composition wherein dispersing or dissolving these additives.Such as, can by described Lubricant composition for gasoline engine and antioxidant, antiwear agents, rust oxidation, anti-clouding agent, emulsion splitter, metal passivator, friction improver, pour point reducer, defoamer, cosolvent, a whole set of package compatibilisers, corrosion inhibitor, ashless dispersant, dyestuff, extreme pressure agent etc. and their mixture blended.Various additive is known and can business enough obtains.By common blended program, use these additives or their similar compound to prepare Lubricant composition for gasoline engine of the present invention.
The example of antioxidant includes but not limited to, amine is as pentanoic, phenyl-alpha-naphthyl-amine, N, N-bis-(alkyl phenyl) amine; With alkylating phenylenediamine; The alkylphenol that phenols is obstructed as BHT, space is as 2,6 di t butyl phenol, 2,6-di-t-butyls-p-cresol and their mixture.
The example of metal detergent includes but not limited to, the calcium alkylbenzenesulfonate that base number is the synthesis sulfonic acid magnesium of 180 ~ 350mgKOH/g, base number is 10 ~ 40mgKOH/g and base number are one or several the mixture in the alkylphenol calcium of 180 ~ 350mgKOH/g.
The example of antiwear agents includes but not limited to, the ester of zinc dialkyl dithiophosphate and zinc diaryl dithiophosphates, aryl phosphate and aryl phosphite, sulfur-bearing, phosphorus sulphur compound, metal or ashless dithiocar-bamate, xanthogenate, alkyl thioether etc. and their mixture.
The example of rust oxidation includes but not limited to, nonionic polyoxyalkylene agents is polyoxyethylene lauryl ether, polyoxyethylene higher alcohol ether, ethylene nonyl phenyl ether, polyoxyethylene octyl phenyl ether, polyoxyethylene octyl stearyl base ether, polyoxyethylene oleyl ether, polyoxyethylene sorbitol monostearate, polyoxyethylene 80 sorbitan monooleate and polyethylene glycol monooleate such as; Stearic acid and other lipid acid; Dicarboxylic acid; Metallic soap; Lipid acid amine salt; The metal-salt of heavy sulfonic acid; The inclined carboxylicesters of polyvalent alcohol; Phosphoric acid ester; (short chain) alkenyl succinic acid; Their partial ester and their nitrogen containing derivative; The dinonylnaphthalene sulfonic acid salt etc. of the alkylaryl sulfonate such as metal of synthesis; With their mixture.The amount of described rust oxidation can be about 0.01wt% ~ about 10wt%.
By any method for the preparation of petrol engine lubricating oil known to the person skilled in the art, Lubricant composition for gasoline engine of the present invention can be prepared.Also each composition can be added by any way with any order.Can use any suitable mixing or dispersing apparatus come blended, mix or dissolve described composition.Blender, agitator, decollator, mixing tank (such as planetary-type mixer and double planetary mixer), shredder (such as colloid mill, ball mill or sand mill) or other mixing any known in the art or dispersing apparatus can be utilized to implement described blended, mixing or to dissolve.
Embodiment 1
Engine oil, made by following component by weight: two class hydrogenated base oil 500N110 parts, 2,5-lutidine quaternary amine 0.05 part, the fluorine-based methyl phenyl ketone of 4--O-1,-(1 ', 3,4,-triazole) methylene radical oxime 0.5 part, Monoethanolamine MEA BASF 1 part, tolyltriazole 0.5 part, Epoxy polyaniline 0.5 part, the octadecyl benzenesulfonic acid calcium of base number between 500 ~ 600mgKOH/g 2 parts, antioxidant 2,6 di t butyl phenol 1 part, antiwear agents zinc diaryl dithiophosphates 4 parts, rust oxidation polyoxyethylene octyl phenyl ether 2 parts.
Preparation method:
1st step: by base oil, pyridine derivatives, the fluorine-based methyl phenyl ketone of 4--O-1 ,-(1 ', 3,4,-triazole) methylene radical oxime, organic amine, tolyltriazole, Epoxy polyaniline mix, stir 2 hours, obtain mixture after being warming up to 45 DEG C;
2nd step: add metal detergent, antioxidant, antiwear agents, rust oxidation in the mixture obtained in the 1st step, stirs 1 hour after being warming up to 40 DEG C, obtains lubricating oil.
Embodiment 2
Engine oil, made by following component by weight: two class hydrogenated base oil 500N140 parts, 2,5-lutidine quaternary amine 0.1 part, the fluorine-based methyl phenyl ketone of 4--O-1,-(1 ', 3,4,-triazole) methylene radical oxime 0.7 part, Monoethanolamine MEA BASF 3 parts, tolyltriazole 2 parts, Epoxy polyaniline 1 part, the octadecyl benzenesulfonic acid calcium of base number between 500 ~ 600mgKOH/g 4 parts, antioxidant 2,6 di t butyl phenol 3 parts, antiwear agents zinc diaryl dithiophosphates 6 parts, rust oxidation polyoxyethylene octyl phenyl ether 6 parts.
Preparation method:
1st step: by base oil, pyridine derivatives, the fluorine-based methyl phenyl ketone of 4--O-1 ,-(1 ', 3,4,-triazole) methylene radical oxime, organic amine, tolyltriazole, Epoxy polyaniline mix, stir 4 hours, obtain mixture after being warming up to 55 DEG C;
2nd step: add metal detergent, antioxidant, antiwear agents, rust oxidation in the mixture obtained in the 1st step, stirs 3 hours after being warming up to 50 DEG C, obtains lubricating oil.
Embodiment 3
Engine oil, made by following component by weight: two class hydrogenated base oil 500N120 parts, 2,5-lutidine quaternary amine 0.08 part, the fluorine-based methyl phenyl ketone of 4--O-1,-(1 ', 3,4,-triazole) methylene radical oxime 0.6 part, Monoethanolamine MEA BASF 2 parts, tolyltriazole 0.9 part, Epoxy polyaniline 0.8 part, the octadecyl benzenesulfonic acid calcium of base number between 500 ~ 600mgKOH/g 3 parts, antioxidant 2,6 di t butyl phenol 2 parts, antiwear agents zinc diaryl dithiophosphates 5 parts, rust oxidation polyoxyethylene octyl phenyl ether 5 parts.
Preparation method:
1st step: by base oil, pyridine derivatives, the fluorine-based methyl phenyl ketone of 4--O-1 ,-(1 ', 3,4,-triazole) methylene radical oxime, organic amine, tolyltriazole, Epoxy polyaniline mix, stir 3 hours, obtain mixture after being warming up to 50 DEG C;
2nd step: add metal detergent, antioxidant, antiwear agents, rust oxidation in the mixture obtained in the 1st step, stirs 2 hours after being warming up to 45 DEG C, obtains lubricating oil.
Reference examples 1
Be with the difference of embodiment 3: do not add pyridine derivatives 2,5-lutidine quaternary amine.
Engine oil, made by following component by weight: two class hydrogenated base oil 500N120 parts, the fluorine-based methyl phenyl ketone of 4--O-1,-(1 ', 3,4,-triazole) methylene radical oxime 0.6 part, Monoethanolamine MEA BASF 2 parts, tolyltriazole 0.9 part, Epoxy polyaniline 0.8 part, the octadecyl benzenesulfonic acid calcium of base number between 500 ~ 600mgKOH/g 3 parts, antioxidant 2,6 di t butyl phenol 2 parts, antiwear agents zinc diaryl dithiophosphates 5 parts, rust oxidation polyoxyethylene octyl phenyl ether 5 parts.
Preparation method:
1st step: by base oil, pyridine derivatives, the fluorine-based methyl phenyl ketone of 4--O-1 ,-(1 ', 3,4,-triazole) methylene radical oxime, organic amine, tolyltriazole, Epoxy polyaniline mix, stir 3 hours, obtain mixture after being warming up to 50 DEG C;
2nd step: add metal detergent, antioxidant, antiwear agents, rust oxidation in the mixture obtained in the 1st step, stirs 2 hours after being warming up to 45 DEG C, obtains lubricating oil.
Reference examples 2
Be with the difference of embodiment 3: do not add the fluorine-based methyl phenyl ketone of 4--O-1 ,-(1 ', 3,4 ,-triazole) methylene radical oxime.
Engine oil, made by following component by weight: two class hydrogenated base oil 500N120 parts, 2,5-lutidine quaternary amine 0.08 part, Monoethanolamine MEA BASF 2 parts, tolyltriazole 0.9 part, Epoxy polyaniline 0.8 part, the octadecyl benzenesulfonic acid calcium of base number between 500 ~ 600mgKOH/g 3 parts, antioxidant 2,6 di t butyl phenol 2 parts, antiwear agents zinc diaryl dithiophosphates 5 parts, rust oxidation polyoxyethylene octyl phenyl ether 5 parts.
Preparation method:
1st step: by base oil, pyridine derivatives, the fluorine-based methyl phenyl ketone of 4--O-1 ,-(1 ', 3,4,-triazole) methylene radical oxime, organic amine, tolyltriazole, Epoxy polyaniline mix, stir 3 hours, obtain mixture after being warming up to 50 DEG C;
2nd step: add metal detergent, antioxidant, antiwear agents, rust oxidation in the mixture obtained in the 1st step, stirs 2 hours after being warming up to 45 DEG C, obtains lubricating oil.
Pressurized Differential scanning amount thermal test (PDSC), high temperature deposition thing qualification test (TEOST-MHT), the test of ASTMD4742 oxide thin layer (TFOUT) and viscosity growth test (VIT) have been carried out to the lubricating oil prepared in embodiment and reference examples.PDSC design temperature is 220 DEG C, TEOST-MHT test adopts ASTMD7097 method, deposition rod temperature is 285 DEG C, reaction times is 24h, the test conditions of viscosity growth test (VIT) is 160 DEG C, oxygen flow is 5L/h, calculates viscosity and increases the time that velocity of variation (Δ v) is 375%.Concrete outcome sees the following form 1.
Table 1 lubricating oil composition simulation comparison test
| Oil sample | PDSC/min | TEOST-MHT/mg | TFOUT/min | VIT-Δv(375%)/h |
| Embodiment 1 | 27.5 | 21.5 | 158 | 92 |
| Embodiment 2 | 27.6 | 20.6 | 158 | 92 |
| Embodiment 3 | 28.5 | 20.3 | 162 | 92 |
| Reference examples 1 | 26.5 | 24.5 | 138 | 83 |
| Reference examples 2 | 22.5 | 25.2 | 140 | 82 |
As can be seen from Table 3, under 220 DEG C of high temperature, lubricating oil composition effectively improves the oxidation induction period (PDSC) of oil product, relative in reference examples 2 in reference examples 3, pyridine derivatives 2 is added in embodiment 3,5-lutidine quaternary amine, can effectively play prevent metal to be corroded and cause wear and tear problem, the settling growing amount of lubricating oil composition reduces about 10%.
High temperature wear resistance result is as shown in table 2, and the high temperature adopting high-frequency reciprocating frictional testing machines (HFRR) to carry out oil product resistance to wears test, and test conditions is load 1000g, frequency 20Hz, stroke 1mm, temperature 150 DEG C.Spot distributed test method is added by the program VG engine sludge of 30% in test oil, after ultrasonic disperse 6min, in 200 DEG C of baking ovens, heat 2h, then by oil droplet on filter paper, measure oil mark circle of dispersion diameter and greasy filth circle of dispersion diameter ratio after 24 hours, be dispersion index.The dispersiveness of the higher explanation oil product of dispersion index is better,
As can be seen from the table, the wear scar diameter of the embodiment of the present invention is less than reference examples, shows good fastness to wear.
Lubricating oil composition of the present invention and SJ20W-50 gasoline engine oil are driven a vehicle simultaneous test, with the suitability for investigating the methanol gasoline engine special lube designed, lubricating oil of the present invention and SJ20W/50 reference oil are carried out contrast road test on transformation two M100 methanol vehicles, uses M100 methanol fuel.Test miles: lubricating oil of the present invention is 12000km, SJ20W-50 gasoline engine oil is 7000km, analyzes after test to two cars oil sample.
Testing method: GB/T265 measures oil viscosity, GB/T4945 measures oil product acid number, GB/T17476 measures Wear metal content in used lubricating oil, SH/T0251 measures oil product base number, GB/T260 measures moisture in oil product, GB/T3536 measures oil flash point, and GB/T8926 measures oil product pentane insolubles, oil viscosity velocity of variation: used engine oil viscosity is deducted new oil viscosity and is multiplied by 100% divided by fresh oil base number.Oil product alkali retentivity: aging rear oil product base number is multiplied by 100% divided by fresh oil base number.
From table 2 road test analytical results, methanol gasoline engine special lube, can effectively in and methanol fuel burning produce acid product; Compared with regular gasoline machine oil, there is more excellent acid neutralization capacity and base number retentivity; There is good wear Characteristics, friction and wear can be reduced to greatest extent, improve mechanical property.Embodiment 3, relative to reference examples 1, adds pyridine derivatives 2,5-lutidine quaternary amine, effectively can improve resistance to corrosion of metal performance; Embodiment 3, relative to reference examples 2, adds the fluorine-based methyl phenyl ketone of 4--O-1, and-(1 ', 3,4 ,-triazole) methylene radical oxime can effectively improve base number conservation rate.
Claims (10)
1. a methanol engine lubricating oil, it is characterized in that, include following component by weight: base oil 110 ~ 140 parts, pyridine derivatives 0.05 ~ 0.1 part, the fluorine-based methyl phenyl ketone of 4--O-1,-(1 ', 3,4 ,-triazole) methylene radical oxime 0.5 ~ 0.7 part, organic amine 1 ~ 3 part, tolyltriazole 0.5 ~ 2 part, Epoxy polyaniline 0.5 ~ 1 part, metal detergent 2 ~ 4 parts, antioxidant 1 ~ 3 part, antiwear agents 4 ~ 6 parts, rust oxidation 2 ~ 6 parts.
2. methanol engine lubricating oil according to claim 1, is characterized in that: described base oil is selected from one or several the mixing in two class hydrogenated base oil 500SN, two class hydrogenated base oil 500N, three class hydrogenated base oil 500SN or three class hydrogenated base oil 500N.
3. methanol engine lubricating oil according to claim 1, it is characterized in that: described pyridine derivatives is selected from 3,5-lutidine quaternary amine, 2,5-lutidine quaternary amines or 2, one or several mixing in 3,5-trimethylpyridine quaternary amine.
4. methanol engine lubricating oil according to claim 1, is characterized in that: described organic amine is selected from one or several the mixing in morpholine, Monoethanolamine MEA BASF, hexahydroaniline.
5. methanol engine lubricating oil according to claim 1, it is characterized in that: described metal detergent is the alkyl benzene calcium sulfonate of base number between 500 ~ 600mgKOH/g, the sulfonic acid calcium salt of described alkyl benzene calcium sulfonate to be carbonatoms be straight or branched alkyl between C10 ~ C20.
6. methanol engine lubricating oil according to claim 1, is characterized in that: described antioxidant is 2,6 di t butyl phenol.
7. methanol engine lubricating oil according to claim 1, is characterized in that: described antiwear agents is zinc diaryl dithiophosphates.
8. methanol engine lubricating oil according to claim 1, is characterized in that: described rust oxidation is polyoxyethylene octyl phenyl ether.
9. the preparation method of the methanol engine lubricating oil described in any one of claim 1 ~ 8, it is characterized in that, comprise the steps: the 1st step: by base oil, pyridine derivatives, the fluorine-based methyl phenyl ketone of 4--O-1,-(1 ', 3,4 ,-triazole) methylene radical oxime, organic amine, tolyltriazole, Epoxy polyaniline mix, stir after heating up, obtain mixture; 2nd step: add metal detergent, antioxidant, antiwear agents, rust oxidation in the mixture obtained in the 1st step, stirs after heating up, obtains lubricating oil.
10. the preparation method of methanol engine lubricating oil according to claim 9, is characterized in that: in the 1st described step, and the temperature of intensification is 45 ~ 55 DEG C, and churning time is 2 ~ 4 hours; In the 2nd described step, the temperature of intensification is 40 ~ 50 DEG C, and churning time is 1 ~ 3 hour.
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| CN111378518A (en) * | 2020-03-02 | 2020-07-07 | 上海宝山大陆汽车配件股份有限公司 | Lubricating oil for automobile chassis stamping part |
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| WO2014019975A1 (en) * | 2012-07-30 | 2014-02-06 | Shell Internationale Reserach Maatschappij B.V. | Lubricating oil composition for internal combustion engines |
| CN103937528A (en) * | 2014-05-07 | 2014-07-23 | 金浦新材料股份有限公司 | Water-soluble compound corrosion inhibitor |
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| CN111378518A (en) * | 2020-03-02 | 2020-07-07 | 上海宝山大陆汽车配件股份有限公司 | Lubricating oil for automobile chassis stamping part |
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