AU2000275214B2 - Diesel engine lubricant composition - Google Patents
Diesel engine lubricant composition Download PDFInfo
- Publication number
- AU2000275214B2 AU2000275214B2 AU2000275214A AU2000275214A AU2000275214B2 AU 2000275214 B2 AU2000275214 B2 AU 2000275214B2 AU 2000275214 A AU2000275214 A AU 2000275214A AU 2000275214 A AU2000275214 A AU 2000275214A AU 2000275214 B2 AU2000275214 B2 AU 2000275214B2
- Authority
- AU
- Australia
- Prior art keywords
- lubricant
- weight
- composition
- soot
- phthalate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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- 239000000203 mixture Substances 0.000 title claims description 33
- 239000010705 motor oil Substances 0.000 title claims description 9
- 239000000314 lubricant Substances 0.000 claims description 35
- 239000004071 soot Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 19
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 19
- 239000002270 dispersing agent Substances 0.000 claims description 12
- 150000002148 esters Chemical class 0.000 claims description 10
- -1 phthalate ester Chemical class 0.000 claims description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000002480 mineral oil Substances 0.000 claims description 4
- 235000010446 mineral oil Nutrition 0.000 claims description 4
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 4
- 150000001298 alcohols Chemical class 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 150000003890 succinate salts Chemical class 0.000 claims description 3
- CDAWCLOXVUBKRW-UHFFFAOYSA-N 2-aminophenol Chemical compound NC1=CC=CC=C1O CDAWCLOXVUBKRW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004439 Isononyl alcohol Substances 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- ZWRUINPWMLAQRD-UHFFFAOYSA-N nonan-1-ol Chemical compound CCCCCCCCCO ZWRUINPWMLAQRD-UHFFFAOYSA-N 0.000 claims 2
- QDTDKYHPHANITQ-UHFFFAOYSA-N 7-methyloctan-1-ol Chemical compound CC(C)CCCCCCO QDTDKYHPHANITQ-UHFFFAOYSA-N 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000003599 detergent Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- GXRDMEGSBKPONF-UHFFFAOYSA-N bis(2-methyloctyl) benzene-1,2-dicarboxylate Chemical compound CCCCCCC(C)COC(=O)C1=CC=CC=C1C(=O)OCC(C)CCCCCC GXRDMEGSBKPONF-UHFFFAOYSA-N 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920013639 polyalphaolefin Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 101000576910 Homo sapiens MARCO-like protein Proteins 0.000 description 1
- 102100025360 MARCO-like protein Human genes 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000007866 anti-wear additive Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003879 lubricant additive Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical group [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 1
- 239000004034 viscosity adjusting agent 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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/68—Esters
- C10M129/72—Esters of polycarboxylic acids
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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
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/16—Reaction products obtained by Mannich reactions
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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
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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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
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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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
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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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
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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
- 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
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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
- 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
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- 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
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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- 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
- C10M2207/28—Esters
- C10M2207/285—Esters of aromatic polycarboxylic acids
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/286—Esters of polymerised unsaturated acids
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- 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
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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- 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
- C10M2215/064—Di- and triaryl amines
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- 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
- C10M2215/086—Imides
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/26—Amines
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/28—Amides; Imides
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/042—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds between the nitrogen-containing monomer and an aldehyde or ketone
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- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/043—Mannich bases
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
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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
- 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
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- 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
- C10M2223/045—Metal containing thio derivatives
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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
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/061—Esters derived from boron
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- 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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
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- 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
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- C—CHEMISTRY; METALLURGY
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- 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
- C10N2040/253—Small diesel engines
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- C—CHEMISTRY; METALLURGY
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- 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
- C10N2040/255—Gasoline engines
- C10N2040/26—Two-strokes or two-cycle engines
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Liquid Carbonaceous Fuels (AREA)
Description
DIESEL ENGINE LUBRICANT COMPOSITION This invention relates to lubricants suitable for use in diesel engines and to a method of controlling the viscosity of such lubricants in the presence of soot.
Internal combustion engines usually function by the combustion of fuels which in turn generates the power needed to propel vehicles. In the case of a diesel engine, the fuel is a diesel fuel and the combustion thereof generally results in emissions from the, exhausts of such vehicles which comprise three main components. These are: soot, particulate matter and nitrogen oxides (the latter will hereafter be abbreviated as NOx for convenience). Of these, soot is generally formed as a result of incomplete combustion of the fuel. Soot adversely affects the performance of lubricants by increasing their viscosity (by accumulation of soot in the lubricant) and by causing wear. Moreover, it is important that the presence of soot does not increase the viscosity of the lubricant to undesirably high levels for it is also important to maintain the viscosity within the normal grades in order to enable quick and clean drainage of the engine during servicing. The formation of soot may be alleviated to a significant extent by operating the diesel engine at relatively higher temperatures. However, the higher temperatures whilst mitigating the formation of soot also result in the formation of increased amounts of particulate matter and NOx. If, however, the engine temperature is lowered, incomplete combustion ensues and whilst this reduces the amount of particulate matter and NOx formed in the emissions, it also substantially increases the amount of soot generated. The soot so formed can manifest itself in two ways. It can either appear as a thick black smoke emitted from the exhaust of the vehicle or can be controlled by absorption or improved dispersion of the same in the lubricant used in such engines. In view of the stringent environmental regulations to control the emission from vehicle exhausts, it would be preferable to retain soot in the engine lubricant. This method, however, presents a different problem. As the soot builds up in the lubricant, the latter becomes more and more viscous and upon reaching a critical value can cause gelation of the lubricant and may eventually cause seizure of the engine. Several methods have been tried to alleviate this problem including the use of one or more of dispersants, metal salts and solvents which may be ethers, esters and the like. However, none of these have resolved the problem satisfactorily.
CONFIRMATION COPY WO 02/24840 PCT/EP00/09211 -2- The object of the present invention is to devise a method of mitigating the problem of the rise in viscosity of the lubricant due to the presence of soot by maximising the period for which the soot remains in the lubricant in an absorbed or well dispersed state thereby controlling the rise in the absolute viscosity of the lubricant for as long as is possible, i.e. minimising the increase in viscosity of the lubricant containing the absorbed/dispersed soot for longer than has been possible hitherto, within the desired ranges.
It has now been found that the problem outlined above can be mitigated by adding a suitable ester to the lubricant used in specified concentrations.
Accordingly, the present invention provides a diesel engine lubricant composition comprising a base stock of diesel lubricating viscosity other than synthetic phthalate esters and a dispersant characterised in that said composition also contains at least one phthalate ester in an amount of less than 5% by weight of the composition, said ester being capable of controlling the viscosity of the lubricant in the presence of soot formed due to incomplete combustion of the fuel.
The diesel engine lubricant may comprise as base stock a mineral oil, or a synthetic base stock other than phthalate esters, such as eg a polyalpha olefin, or a combination or blend of such base stocks. A mineral oil base stock which may be hydroisomerised or hydrocracked is preferred. The final lubricant compositions will generally meet standard engine oil viscosity grades including, inter alia, OW-20, 5W-20, 5W-30, 10W-30, 10W-40, 15W-40 and 15W-50 A dispersant is present in the compositions of the present invention to aid in the dispersancy of any soot and other particles formed in the engine and to thereby form a well dispersed suspension of such particles in the lubricant. The dispersants minimise the risk of agglomeration of the soot particles and also prevent sludge formation or flocculation of the suspended particles. Examples of dispersants that may be used in the compositions of the present invention include inter alia high molecular weight succinates such as e.g. polyisobutenyl succinates and the reaction products thereof with amines, especially polyamines to form the corresponding polyisobutenyl succinimides, and salts thereof such as eg the borated salts, and borated amino-phenol/formaldehyde condensates.
WO 02/24840 PCT/EP00/09211 -3- The dispersants are suitably used in an amount ranging from about 6-10% by weight based on the total weight of the lubricant composition, preferably from about 4- 8% by weight. i The phthalate ester(s) chosen for this purpose have to be miscible with the base stock. With this proviso, the phthalate esters which can be used in the present invention can be esters of phthalic acid which have the carboxyl groups in the 1,2- (ortho), 1,3- (meta) or 1,4-(para) positions of the benzene nucleus. The esters are suitably derivable from monohydric alcohols having from 6-20 carbon atoms, preferably from 8-12 carbon atoms and are most preferably monohydric alcohols which have 9 or 10 carbon atoms.
More specifically, esters of phthalic acid and nonyl or iso-nonyl alcohols are most preferred. Of the various isomers of phthalic acid, esters of terephthalic acid are preferred.
The phthalate esters are suitably present in the lubricant composition in an amount which is less than 5% by weight, suitably less than 1% by weight, preferably from 0.05- 0.99% by weight and more preferably from 0.1-0.6% by weight, eg from 0.3 to 0.5% by weight. The presence of the phthalate esters in the compositions of the present invention enable soot to be better dissolved and/or dispersed within the lubricant thereby minimising agglomeration thereof and hence controlling the viscosity of the lubricant by maintaining it within desired levels. These desired levels will vary with the nature of the fuel combusted and the engine oil used, the engine size and the operating conditions employed. For a typical XUD 11BTE passenger car engine test, the increase in viscosity due to soot is suitably no more than 125% of its initial value.
The lubricant compositions of the present invention can be prepared by blending the ester with the base stock along with the other ingredients using conventional lubricant blending techniques.
The lubricant compositions of the present invention may contain in addition, conventional additives such as e.g. anti-oxidants, viscosity index improvers, extremepressure agents, friction modifiers, corrosion inhibitors, emulsifying aids, pour point depressants, detergents, anti-wear, anti-foams and the like.
The performance of the additives of the present invention was tested by the following method(s) which involve the use of the industry standard test XUD 11BTE (CEC L-56-T-95).
In another aspect of the present invention, there is provided a method of operating a diesel engine to control the rise in viscosity of the diesel engine lubricant due to the presence of soot therein, which method includes adding to the engine a lubricant composition including: a base stock other than synthetic phthalate esters; a dispersant; and at least one phthalate ester in an amount less than 5% by weight of the lubricant composition and operating the engine.
The present invention is further illustrated with reference to the following Examples:
EXAMPLE:
The performance of a lubricant composition suitable for use in a passenger car diesel engine was evaluated for the ability of the phthalate esters of the present invention to control the viscosity thereof according to the industry standard test XUD 11BTE (CEC L-56-T-95) by performing the test on compositions with and without the phthalate esters therein.
The lubricant was a 5W -30 grade (ex Esso), using a mixture of base stocks including a synthetic ester component and a typical group III base stock.
A monofunctional OCP viscosity modifier was used. The detergent inhibitor package (DI) contains standard lubricant additives, namely detergent, dispersant, antiwear and antioxidant additives.
In one formulation, the group III basestock was reduced by 3% by weight and di-isononyl phthalate ester (JAY-DINP ex Exxon Chemicals) was added at 3% by weight level.
The XUD IIBTE engine test operated for 75 hours in a soot producing mode under a set of operating conditions. The details of this engine test are given in the industry procedure referred to above, ie CEC-L-56-T-95. The kinematic viscosity of the lubricant at 100°C is measured as a function of time and soot (formed and dispersed) using the standard KV 10 0 procedure. The viscosity of the lubricant at 3% soot concentration was chosen to reflect end of test conditions.
-4a- The Tables below show the materials used and the performance of the two test oils. In these Tables, the following abbreviations have been used: JAY-DINP Di-isononyl phthalate (ex Exxon Chemicals) DURASYN®-61 -A polyalpha olefin (ex Albamaru) MARCOL©-172 -A white mineral oil (ex Esso) YUBASE®-4 A group III base stock having a viscosity of 4 cSt at 100°C WO 02/24840 PTN-8002
DI
PCT/EP00/09211 A viscosity index improver which is an olefin copolymer containing pour point depressant A detergent inhibitor package comprising calcium sulphonate detergent, a polyisobutenyl succinimide dispersant, a secondary zinc dithiophosphate antiwear agent, mixture of phenol and amine antioxidants, rust inhibitors and anti-foaming agent.
TABLE 1 Lubricant Compositions COMPONENT (wt%) JAY-DINP DURASYN-61 MARCOL-172 YUBASE-4 PTN-8002 DI Example 1 0 29.5 20 30 8 12.5 (Comparative) Example 2 3 29.5 20 27 8 12.5 (Invention) The performance of these lubricant compositions in a diesel engine were then tested using the XUD 11BTE engine test described above. The results are given in Table 2 below.
TABLE 2 Test Results PRODUCTS 5W-30 GRADE OILS INTEGERS TESTED Example 1 Example 2 (Comparative) (Invention) Absolute Viscosity increase (mm 2 40 23 at 3% soot Sludge Merits 9.0 9.3 Piston Merits 44 51 Soot 4.3 3.6 The above results show that the addition of 3% phthalate ester (JAY-DINP) significantly reduces the absolute viscosity increase. At the same time, both sludge control and piston cleanliness are improved as shown in the sludge and piston merit results above.
Claims (9)
1. A method of operating a diesel engine to control the rise in viscosity of the diesel engine lubricant due to the presence of soot therein, which method includes adding to the engine a lubricant composition including: a base stock other than synthetic phthalate esters; a dispersant; and at least one phthalate ester in an amount less than 5% by weight of the lubricant composition and operating the engine.
2. The method of claim 1 wherein the phthalate ester is elected from one or more of the esters of phthalic acid which have the carboxyl group in the 1,2- (ortho), 1,3-(meta), or 1,4-(para) positions, and monohydric alcohols having 6 to carbon atoms.
3. The method of claim 2 wherein the monohydric alcohol is nonyl alcohol or isononyl alcohol.
4. The method of any preceding claim wherein the phthalate ester is a terephthahlate.
The method of any preceding claim wherein the phthalate ester is present in the lubricant composition in an amount less than 1% by weight based on the composition.
6. The method of any preceding claim wherein the dispersant is selected from high molecular weight succinates, the reaction products thereof with amines, succinimides, salts thereof, borated salts thereof, and borated amino- phenol/formaldehyde condensates.
7. The method of any preceding claim wherein the dispersant is present in the composition in an amount in the range from 6 to 10% by weight based on the weight of the composition.
8. The method of any preceding claim wherein the composition includes, as base stock, a mineral oil, a synthetic base stock other than phthalate esters, or a combination or blend of such base stocks.
9. The use of at least phthalate ester in an amount less than 5% by weight, based on the total weight of a diesel lubricant composition including a base stock other than synthetic phthalate esters, to control the rise in viscosity of the composition due to the presence of soot therein. DATED this 29th day of March 2006 WATERMARK PATENT TRADE MARK ATTORNEYS
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/EP2000/009211 WO2002024840A1 (en) | 2000-09-20 | 2000-09-20 | Diesel engine lubricant composition |
Publications (2)
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AU2000275214A1 AU2000275214A1 (en) | 2002-06-20 |
AU2000275214B2 true AU2000275214B2 (en) | 2006-04-27 |
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AU7521400A Pending AU7521400A (en) | 2000-09-20 | 2000-09-20 | Diesel engine lubricant composition |
AU2000275214A Ceased AU2000275214B2 (en) | 2000-09-20 | 2000-09-20 | Diesel engine lubricant composition |
Family Applications Before (1)
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AU7521400A Pending AU7521400A (en) | 2000-09-20 | 2000-09-20 | Diesel engine lubricant composition |
Country Status (6)
Country | Link |
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EP (1) | EP1337610A1 (en) |
JP (1) | JP2004510017A (en) |
AU (2) | AU7521400A (en) |
BR (1) | BR0017335A (en) |
CA (1) | CA2424838A1 (en) |
WO (1) | WO2002024840A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2003064574A1 (en) * | 2002-01-31 | 2003-08-07 | Exxonmobil Research And Engineering Company | Lubricating oil compositions with improved friction properties |
BR112013029108A2 (en) * | 2011-05-12 | 2017-02-07 | Lubrizol Corp | imides and aromatic esters as lubricant additives |
DE202015009141U1 (en) | 2015-10-15 | 2016-11-03 | Tesa Se | Adhesive composition, in particular for stripable adhesive strips, and use for bonding to coated woodchip wallpaper |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0861882A1 (en) * | 1997-02-26 | 1998-09-02 | Tonen Corporation | Fuel oil composition for diesel engines |
WO2000029520A1 (en) * | 1998-11-12 | 2000-05-25 | Exxon Chemical Patents Inc. | Lubricating oil compositions comprising phthalate esters |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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BE538168A (en) * | 1954-05-15 | |||
US4080303A (en) * | 1974-07-22 | 1978-03-21 | The Lubrizol Corporation | Lubricant compositions containing boron dispersant, VI improver, and aromatic carboxylic acid esters |
US3974081A (en) * | 1974-07-31 | 1976-08-10 | Exxon Research And Engineering Company | Biodegradable seal swell additive with low toxicity properties for automatic transmission fluids, power transmission fluids and rotary engine oil applications |
JP3941150B2 (en) * | 1997-03-07 | 2007-07-04 | 新日本理化株式会社 | Engine oil composition |
JP3176888B2 (en) * | 1998-10-30 | 2001-06-18 | 日石三菱株式会社 | Lubricating base oil and lubricating oil composition for internal combustion engines |
RU2143460C1 (en) * | 1998-11-30 | 1999-12-27 | Волгин Сергей Николаевич | Fuel composition |
-
2000
- 2000-09-20 AU AU7521400A patent/AU7521400A/en active Pending
- 2000-09-20 JP JP2002529239A patent/JP2004510017A/en active Pending
- 2000-09-20 WO PCT/EP2000/009211 patent/WO2002024840A1/en active Application Filing
- 2000-09-20 EP EP00964214A patent/EP1337610A1/en not_active Withdrawn
- 2000-09-20 AU AU2000275214A patent/AU2000275214B2/en not_active Ceased
- 2000-09-20 BR BR0017335-5A patent/BR0017335A/en not_active Application Discontinuation
- 2000-09-20 CA CA002424838A patent/CA2424838A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0861882A1 (en) * | 1997-02-26 | 1998-09-02 | Tonen Corporation | Fuel oil composition for diesel engines |
WO2000029520A1 (en) * | 1998-11-12 | 2000-05-25 | Exxon Chemical Patents Inc. | Lubricating oil compositions comprising phthalate esters |
Also Published As
Publication number | Publication date |
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BR0017335A (en) | 2003-07-01 |
AU7521400A (en) | 2002-04-02 |
EP1337610A1 (en) | 2003-08-27 |
WO2002024840A1 (en) | 2002-03-28 |
JP2004510017A (en) | 2004-04-02 |
CA2424838A1 (en) | 2002-03-28 |
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