CN117511625A - Diesel engine lubricating oil composition and preparation method thereof - Google Patents
Diesel engine lubricating oil composition and preparation method thereof Download PDFInfo
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- CN117511625A CN117511625A CN202311461516.1A CN202311461516A CN117511625A CN 117511625 A CN117511625 A CN 117511625A CN 202311461516 A CN202311461516 A CN 202311461516A CN 117511625 A CN117511625 A CN 117511625A
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- lubricating oil
- diesel engine
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- engine lubricating
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 44
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims description 9
- 238000005260 corrosion Methods 0.000 claims abstract description 31
- 230000007797 corrosion Effects 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 239000003381 stabilizer Substances 0.000 claims abstract description 23
- 239000002199 base oil Substances 0.000 claims abstract description 19
- 239000003112 inhibitor Substances 0.000 claims abstract description 17
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 15
- 239000011593 sulfur Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 14
- 239000003599 detergent Substances 0.000 claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims abstract description 14
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 13
- 239000002530 phenolic antioxidant Substances 0.000 claims abstract description 13
- 239000006078 metal deactivator Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000004034 viscosity adjusting agent Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 24
- -1 trioctyl zinc phosphate Chemical compound 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-UHFFFAOYSA-N 0.000 claims description 5
- CMGXCZJLZPWTGL-UHFFFAOYSA-N 1-n,4-n-ditert-butylbenzene-1,4-diamine Chemical compound CC(C)(C)NC1=CC=C(NC(C)(C)C)C=C1 CMGXCZJLZPWTGL-UHFFFAOYSA-N 0.000 claims description 4
- YEVQZPWSVWZAOB-UHFFFAOYSA-N 2-(bromomethyl)-1-iodo-4-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=C(I)C(CBr)=C1 YEVQZPWSVWZAOB-UHFFFAOYSA-N 0.000 claims description 4
- BDCROSNTMQESFE-UHFFFAOYSA-N N-tert-butyl-4-[4-(tert-butylamino)phenyl]aniline Chemical compound C(C)(C)(C)NC1=CC=C(C=C1)C1=CC=C(NC(C)(C)C)C=C1 BDCROSNTMQESFE-UHFFFAOYSA-N 0.000 claims description 4
- GSJYSUQLJKYYRS-UHFFFAOYSA-N hydroxy-octoxy-octylsulfanyl-sulfanylidene-lambda5-phosphane Chemical compound CCCCCCCCOP(O)(=S)SCCCCCCCC GSJYSUQLJKYYRS-UHFFFAOYSA-N 0.000 claims description 4
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 4
- UWNADWZGEHDQAB-UHFFFAOYSA-N i-Pr2C2H4i-Pr2 Natural products CC(C)CCC(C)C UWNADWZGEHDQAB-UHFFFAOYSA-N 0.000 claims description 3
- QOQNJVLFFRMJTQ-UHFFFAOYSA-N trioctyl phosphite Chemical compound CCCCCCCCOP(OCCCCCCCC)OCCCCCCCC QOQNJVLFFRMJTQ-UHFFFAOYSA-N 0.000 claims description 3
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 10
- 230000003647 oxidation Effects 0.000 abstract description 7
- 239000003921 oil Substances 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000005078 molybdenum compound Substances 0.000 abstract description 3
- 150000002752 molybdenum compounds Chemical class 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 10
- 238000005299 abrasion Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000010710 diesel engine oil Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 108010011222 cyclo(Arg-Pro) Proteins 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/066—Arylene diamines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/042—Sulfate esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/106—Thiadiazoles
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/041—Triaryl phosphates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/042—Metal salts thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/047—Thioderivatives not containing metallic elements
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/72—Extended drain
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/252—Diesel engines
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a lubricating oil composition for a diesel engine, which comprises the following raw materials in percentage by weight: 0.5 to 3 percent of phenolic antioxidant; 0.5 to 5 percent of antioxidant containing sulfur; 0.01 to 1 percent of metal deactivator; 0.5 to 10 percent of detergent; 0.5 to 10 percent of extreme pressure antiwear agent; 0.5 to 10 percent of dispersing agent; 1-8% of viscosity modifier; 2-5% of corrosion inhibitor; 2-5% of high-temperature stabilizer; 0.002-0.08% of anti-foaming agent; and the balance of base oil. The invention improves the wear resistance of the diesel engine and prolongs the service life of parts. The organic molybdenum compound also has certain oxidation resistance, and can prevent the lubricating oil from undergoing oxidation reaction under the environment of high temperature and oxygen. This helps to maintain the stability of the lubricating oil, reduce the aging and degradation of the oil, and prolong the service life of the lubricating oil.
Description
Technical Field
The invention relates to the technical field of engine lubricating oil compositions, in particular to a diesel engine lubricating oil composition and a preparation method thereof.
Background
In recent years, the specification grade of the lubricating oil of the diesel engine continuously develops along with the structure, the operating condition and the energy conservation and emission reduction requirements of the diesel engine, and the lubricating oil of the diesel engine is frequently upgraded and updated. Diesel engine oil product specifications are gradually upgraded from CF-4 to CH-4, CI-4 and up to date CJ-4, diesel engine EGR exhaust gas recirculation system applications, NOx emissions are reduced, and problems of increased soot levels in the engine oil are brought, and the soot-containing mass fraction in many diesel engine test benches such as MackT11 used lubricating oils can reach 6%. There are various friction pairs in engines, such as pistons and cylinder liners, crankshaft journals and bearings, cams and followers, gears, etc. Soot particles are very hard and the wear of the abrasive particles caused between the friction pairs of the engine will have a severe impact on the service life of the engine, which puts higher demands on the lubricating oil.
In addition, unsaturated olefin, aromatic hydrocarbon and sulfur-containing compounds in the engine fuel oil and the base oil form colloid under the action of oxygen, and finally form carbon deposition sediment, and particularly, the generation of the engine sediment can be accelerated at key parts such as a piston, a combustion chamber and the like, so that the working performance of the engine is seriously influenced, and the problems of difficult engine starting, unstable idling, poor drivability, poor acceleration, serious power loss and the like are caused. The ability of engine oils to have excellent oxidation resistance and inhibit the formation of high temperature deposits has been a constant effort by researchers in the field, and the development of new and more efficient antioxidant additives has been the subject of investigation by those in the field. In addition, because the sulfur content of the diesel oil is higher, acidic substances generated after combustion are more, the high Wen Yantai generated by the operation of the diesel engine is also more, coking and carbon deposition at the top of a piston can be effectively reduced by adopting a formula with low sulfate ash content, valve system abrasion is reduced, and in addition, corrosion-resistant oxidation products can be reduced by low ash content, the corrosion and abrasion of engine parts are reduced, and the safe operation period of the engine and the service life of spare parts are prolonged. Low ash internal combustion engine oils are thus a direction of development for internal combustion engine oils.
In the research technical aspect of diesel engine oil, most of China still adopts APII base oil (solvent refined mineral oil), and various additives such as an antioxidant corrosion inhibitor, a detergent dispersant, a viscosity index improver, a pour point depressant and the like are added. Because the refining degree of the base oil is lower, the oxidation resistance and the abrasion resistance are poor, sediments such as carbon deposit and the like are easy to generate in use, and the temperature resistance of the additive matched with the base oil is poor, the oil change period is shorter, and the long-time use requirement of a modern high-temperature high-speed engine is difficult to meet.
Disclosure of Invention
The invention aims to provide a diesel engine lubricating oil composition and a preparation method thereof, solves the problems in the background technology and meets the actual use requirements.
In order to achieve the above purpose, the present invention provides the following technical solutions: a lubricating oil composition for a diesel engine comprises the following raw materials in percentage by weight: 0.5 to 3 percent of phenolic antioxidant; 0.5 to 5 percent of antioxidant containing sulfur; 0.01 to 1 percent of metal deactivator; 0.5 to 10 percent of detergent; 0.5 to 10 percent of extreme pressure antiwear agent; 0.5 to 10 percent of dispersing agent; 1-8% of viscosity modifier; 2-5% of corrosion inhibitor; 2-5% of high-temperature stabilizer; 0.002-0.08% of anti-foaming agent; and the balance of base oil.
As a preferred embodiment of the present invention, the method for preparing a lubricating oil composition for a diesel engine comprises the steps of:
s1: filtering and dehydrating the base oil, preheating the base oil to 50 ℃ in mixing equipment, respectively adding the sulfur-containing antioxidant, the metal deactivator and the detergent into the mixing equipment when the equipment is heated to 30 ℃, 40 ℃ and 50 ℃, mixing for 5-10 min after the adding is finished, and standing and cooling to normal temperature to obtain a standby material;
s2: adding the standby materials in the step S1 into stirring equipment for stirring and mixing, adopting a water bath heating method, controlling the stirring temperature to be between 30 and 50 ℃, stirring and mixing for 40 to 60 minutes at the rotating speed of 600 to 800r/min, adding phenolic antioxidants, corrosion inhibitors, extreme pressure antiwear agents, dispersing agents and anti-foaming agents 20 minutes after stirring, continuously heating to 80 ℃ after the adding is finished, dripping high-temperature stabilizing agents, and collecting the materials for standby after the adding is finished;
s3: and (3) standing and cooling the materials collected in the step (S2) to normal temperature, and filling to obtain the diesel engine lubricating oil composition.
As a preferred embodiment of the present invention, the dehydration pressure in the step (S1) is-0.06 to-0.1 MPa, the temperature is 60 to 120 ℃ and the time is 0.3 to 1h.
As a preferred embodiment of the present invention, the dropping speed of the high temperature stabilizer in the step (S2) is 10 drops/min.
As a preferred embodiment of the present invention, the rate of continuous heating after completion of the addition in step (S2) is 4 to 8 ℃/min.
As a preferred embodiment of the present invention, the corrosion inhibitor is a combination of two or more of trioctylzinc phosphate, dioctyl sodium disulfate, acetic anhydride, dialkyl dithioaryl ether, dioctyl dithiophenyl ether.
As a preferred embodiment of the invention, the extreme pressure antiwear agent is one or a combination of two of dioctyl dithiophosphate, diisobutyl dioctyl dithiophosphate, trioctyl phosphate, dioctyl lead disulfate and trioctyl phosphite.
As a preferred embodiment of the invention, the high temperature stabilizer is one of di-tert-butyl p-phenylenediamine, di-tert-butyl benzidine, dibenzothiazyl diazole, molybdenum disulfide, diphenol and triphenylphosphine.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the high-temperature stabilizer, the extreme pressure antiwear agent and the metal deactivator are added into the lubricating oil, so that the friction and abrasion between metals can be reduced. By reducing wear of the parts, the heat generated by friction and the rate of oxidation reaction can be reduced. Corrosion inhibitors can prevent the lubricating oil from corroding when exposed to water and other corrosive substances. The organic molybdenum compound can form a molybdate protective film in lubricating oil, can form a uniform lubricating film on the friction surface, and reduces direct contact and abrasion between metal parts. This can improve the wear resistance of the diesel engine and extend the life of the parts. The organic molybdenum compound also has certain oxidation resistance, and can prevent the lubricating oil from undergoing oxidation reaction under the environment of high temperature and oxygen. This helps to maintain the stability of the lubricating oil, reduce the aging and degradation of the oil, and prolong the service life of the lubricating oil.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A lubricating oil composition for a diesel engine comprises the following raw materials in percentage by weight: 1.5% of phenolic antioxidant; 3% of a sulfur-containing antioxidant; 0.5% of metal deactivator; 5% of a detergent; extreme pressure antiwear agent 3%; 5% of a dispersing agent; 3.6% of viscosity modifier; 3.8% of an anti-corrosion agent; 4% of a high-temperature stabilizer; 0.02% of an antifoaming agent; and the balance of base oil.
Further improved, the preparation method of the diesel engine lubricating oil composition comprises the following steps:
s1: filtering and dehydrating the base oil, preheating to 50 ℃ in mixing equipment, respectively adding a sulfur-containing antioxidant, a metal deactivator and a detergent into the mixing equipment when the equipment is heated to 30 ℃, 40 ℃ and 50 ℃, mixing for 8min after the adding is finished, standing at the rotating speed of 400r/min, and cooling to normal temperature to obtain a standby material;
s2: adding the standby materials in the step S1 into stirring equipment for stirring and mixing, adopting a water bath heating method, controlling the stirring temperature to be between 40 ℃, stirring and mixing for 50min at the rotating speed of 700r/min, adding phenolic antioxidants, corrosion inhibitors, extreme pressure antiwear agents, dispersing agents and anti-foaming agents 20min after stirring, continuously heating to 80 ℃ after the adding is finished, dripping high-temperature stabilizing agents, and collecting the materials for standby after the adding is finished;
s3: and (3) standing and cooling the materials collected in the step (S2) to normal temperature, and filling to obtain the diesel engine lubricating oil composition.
Further more, the dehydration pressure in the step (S1) is-0.08 MPa, the temperature is 88 ℃ and the time is 0.6h.
Further more, the dropping speed of the high temperature stabilizer in the step (S2) is 10 drops/min.
Further more, the continuous heating rate after the completion of the addition in the step (S2) is 6 ℃/min.
Further still, the corrosion inhibitor is a combination of zinc trioctyl phosphate and sodium dioctyl disulfate.
Further improved, the extreme pressure antiwear agent is dioctyl dithiophosphate.
Further improved, the high temperature stabilizer is one of di-tert-butyl p-phenylenediamine, di-tert-butyl benzidine, dibenzothiazyl, molybdenum disulfide, diphenol and triphenylphosphine.
Example 2
A diesel engine lubricating oil composition characterized in that: comprises the following raw materials in percentage by weight: 0.5% of phenolic antioxidant; 0.5% of a sulfur-containing antioxidant; 0.01% of metal deactivator; 0.5% of a detergent; 0.5% of extreme pressure antiwear agent; 0.5% of dispersant; 1% of a viscosity number improver; 2% of an anti-corrosion agent; high temperature stabilizer 2%; 0.002% of an antifoam agent; and the balance of base oil.
Further improved, the preparation method of the diesel engine lubricating oil composition comprises the following steps:
s1: filtering and dehydrating the base oil, preheating to 50 ℃ in mixing equipment, respectively adding a sulfur-containing antioxidant, a metal deactivator and a detergent into the mixing equipment when the equipment is heated to 30 ℃, 40 ℃ and 50 ℃, mixing for 5min after the adding is finished, and standing and cooling to normal temperature to obtain a standby material;
s2: adding the standby materials in the step S1 into stirring equipment for stirring and mixing, adopting a water bath heating method, controlling the stirring temperature to be between 30 ℃, stirring and mixing for 40min at 600r/min, adding phenolic antioxidants, corrosion inhibitors, extreme pressure antiwear agents, dispersing agents and anti-foaming agents 20min after stirring, continuously heating to 80 ℃ after the addition is finished, dripping high-temperature stabilizing agents, and collecting the materials for standby after the completion;
s3: and (3) standing and cooling the materials collected in the step (S2) to normal temperature, and filling to obtain the diesel engine lubricating oil composition.
Further more, the dehydration pressure in the step (S1) is-0.06 MPa, the temperature is 60 ℃ and the time is 0.3h.
Further more, the dropping speed of the high temperature stabilizer in the step (S2) is 10 drops/min.
Further more, the continuous heating rate after the completion of the addition in the step (S2) is 4 ℃/min.
Further still, the corrosion inhibitor is a combination of zinc trioctyl phosphate and sodium dioctyl disulfate.
Further improved, the extreme pressure antiwear agent is a combination of trioctyl phosphate and trioctyl phosphite.
Further improved, the high temperature stabilizer is diphenol.
Example 3
A diesel engine lubricating oil composition characterized in that: comprises the following raw materials in percentage by weight: 3% of phenolic antioxidants; 5% of a sulfur-containing antioxidant; 1% of metal deactivator; 10% of a detergent; 10% of extreme pressure antiwear agent; 10% of a dispersing agent; 8% of viscosity value improver; 5% of an anti-corrosion agent; 5% of a high-temperature stabilizer; 0.08% of an antifoaming agent; and the balance of base oil.
Further improved, the preparation method of the diesel engine lubricating oil composition comprises the following steps:
s1: filtering and dehydrating the base oil, preheating to 50 ℃ in mixing equipment, respectively adding a sulfur-containing antioxidant, a metal deactivator and a detergent into the mixing equipment when the equipment is heated to 30 ℃, 40 ℃ and 50 ℃, mixing for 10min after the adding is finished, and standing and cooling to normal temperature to obtain a standby material;
s2: adding the standby materials in the step S1 into stirring equipment for stirring and mixing, adopting a water bath heating method, controlling the stirring temperature to be between 50 ℃, stirring and mixing for 60min at the rotating speed of 800r/min, adding phenolic antioxidants, corrosion inhibitors, extreme pressure antiwear agents, dispersing agents and anti-foaming agents 20min after stirring, continuously heating to 80 ℃ after the adding is finished, dripping high-temperature stabilizing agents, and collecting the materials for standby after the adding is finished;
s3: and (3) standing and cooling the materials collected in the step (S2) to normal temperature, and filling to obtain the diesel engine lubricating oil composition.
Further more, the dehydration pressure in the step (S1) is-0.1 MPa, the temperature is 120 ℃ and the time is 1h.
Further more, the dropping speed of the high temperature stabilizer in the step (S2) is 10 drops/min.
Further more, the continuous heating rate after the completion of the addition in the step (S2) is 8 ℃/min.
Further improved, the corrosion inhibitor is a combination of zinc trioctyl phosphate, sodium dioctyl disulfate.
Further improved, the extreme pressure antiwear agent is a combination of diisobutyl dioctyl dithiophosphate and trioctyl phosphate.
Further improved, the high temperature stabilizer is one of triphenylphosphine.
Example 4
A lubricating oil composition for a diesel engine comprises the following raw materials in percentage by weight: 1.5% of phenolic antioxidant; 3% of a sulfur-containing antioxidant; 5% of a detergent; 5% of a dispersing agent; 3.6% of viscosity modifier; 3.8% of an anti-corrosion agent; 0.02% of an antifoaming agent; and the balance of base oil.
Further improved, the preparation method of the diesel engine lubricating oil composition comprises the following steps:
s1: filtering and dehydrating the base oil, preheating to 50 ℃ in mixing equipment, respectively adding sulfur-containing antioxidant and detergent into the mixing equipment when the equipment is heated to 30 ℃, 40 ℃ and 50 ℃, mixing for 8min after the adding, standing at the rotating speed of 400r/min, and cooling to normal temperature to obtain a standby material;
s2: adding the standby materials in the step S1 into stirring equipment for stirring and mixing, adopting a water bath heating method, controlling the stirring temperature to be between 40 ℃, stirring and mixing for 50min at the rotating speed of 700r/min, adding phenolic antioxidants, corrosion inhibitors, dispersing agents and anti-foaming agents 20min after stirring, and collecting the materials for standby;
s3: and (3) standing and cooling the materials collected in the step (S2) to normal temperature, and filling to obtain the diesel engine lubricating oil composition.
Further more, the dehydration pressure in the step (S1) is-0.08 MPa, the temperature is 88 ℃ and the time is 0.6h.
Further still, the corrosion inhibitor is a combination of zinc trioctyl phosphate and sodium dioctyl disulfate.
Further improved, the extreme pressure antiwear agent is dioctyl dithiophosphate.
Further improved, the high temperature stabilizer is one of di-tert-butyl p-phenylenediamine, di-tert-butyl benzidine, dibenzothiazyl, molybdenum disulfide, diphenol and triphenylphosphine.
The high-temperature abrasion resistance test of the oil product is carried out by adopting a high-frequency reciprocating friction tester (purchased from the British PCS company, HFRR), and the test conditions are as follows: the test was carried out at a temperature of 100℃under a load of 1000g for a test period of 120min at a frequency of 10Hz, and the diameter of the plaque formed on the steel ball was measured after the test was completed.
Static corrosion test standard ASTM d130, salt spray test ASTM B117. The results are shown in the following table:
| example 1 | Example 2 | Example 3 | Example 4 | |
| Initial oxidation temperature (. Degree. C.) | 233 | 221 | 214 | 188 |
| Oxidation induction period (min) | 60.5 | 58.2 | 55.5 | 28.5 |
| Deposit formation (mg) | 28.1 | 22.6 | 26.7 | 42.6 |
| Diameter of mill (mm) | 0.48 | 0.53 | 0.51 | 0.71 |
| Static Corrosion test | No corrosion | No corrosion | No corrosion | Slightly erode |
| Salt spray test | No corrosion | No corrosion | No corrosion | Slightly erode |
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A diesel engine lubricating oil composition characterized in that: comprises the following raw materials in percentage by weight: 0.5 to 3 percent of phenolic antioxidant; 0.5 to 5 percent of antioxidant containing sulfur; 0.01 to 1 percent of metal deactivator; 0.5 to 10 percent of detergent; 0.5 to 10 percent of extreme pressure antiwear agent; 0.5 to 10 percent of dispersing agent; 1-8% of viscosity modifier; 2-5% of corrosion inhibitor; 2-5% of high-temperature stabilizer; 0.002-0.08% of anti-foaming agent; and the balance of base oil.
2. A diesel engine lubricating oil composition as set forth in claim 1, wherein: the preparation method of the diesel engine lubricating oil composition comprises the following steps:
s1: filtering and dehydrating the base oil, preheating the base oil to 50 ℃ in mixing equipment, respectively adding the sulfur-containing antioxidant, the metal deactivator and the detergent into the mixing equipment when the equipment is heated to 30 ℃, 40 ℃ and 50 ℃, mixing for 5-10 min after the adding is finished, and standing and cooling to normal temperature to obtain a standby material;
s2: adding the standby materials in the step S1 into stirring equipment for stirring and mixing, adopting a water bath heating method, controlling the stirring temperature to be between 30 and 50 ℃, stirring and mixing for 40 to 60 minutes at the rotating speed of 600 to 800r/min, adding phenolic antioxidants, corrosion inhibitors, extreme pressure antiwear agents, dispersing agents and anti-foaming agents 20 minutes after stirring, continuously heating to 80 ℃ after the adding is finished, dripping high-temperature stabilizing agents, and collecting the materials for standby after the adding is finished;
s3: and (3) standing and cooling the materials collected in the step (S2) to normal temperature, and filling to obtain the diesel engine lubricating oil composition.
3. A method of preparing a diesel engine lubricating oil composition according to claim 2, characterized in that: the dehydration pressure in the step (S1) is-0.06 to-0.1 MPa, the temperature is 60-120 ℃ and the time is 0.3-1 h.
4. A method of preparing a diesel engine lubricating oil composition according to claim 2, characterized in that: the dropping speed of the high temperature stabilizer in the step (S2) was 10 drops/min.
5. A method of preparing a diesel engine lubricating oil composition according to claim 2, characterized in that: and (2) continuously heating at a speed of 4-8 ℃/min after the addition in the step (S2) is completed.
6. A method of preparing a diesel engine lubricating oil composition according to claim 2, characterized in that: the corrosion inhibitor is a combination of two or more of trioctyl zinc phosphate, dioctyl sodium disulfate, acetic anhydride, dialkyl dithioaryl ether and dioctyl dithiophenyl ether.
7. A method of preparing a diesel engine lubricating oil composition according to claim 2, characterized in that: the extreme pressure antiwear agent is one or a combination of two of dioctyl dithiophosphate, dioctyl dithiophosphate diisobutyl, trioctyl phosphate, dioctyl lead disulfate and trioctyl phosphite.
8. A method of preparing a diesel engine lubricating oil composition according to claim 2, characterized in that: the high-temperature stabilizer is one of di-tert-butyl p-phenylenediamine, di-tert-butyl benzidine, dibenzothiazyl, molybdenum disulfide, diphenol and triphenylphosphine.
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