EP3914601A1 - Complexe dinucléaire de molybdène et son utilisation dans des compositions lubrifiantes - Google Patents
Complexe dinucléaire de molybdène et son utilisation dans des compositions lubrifiantesInfo
- Publication number
- EP3914601A1 EP3914601A1 EP20700919.2A EP20700919A EP3914601A1 EP 3914601 A1 EP3914601 A1 EP 3914601A1 EP 20700919 A EP20700919 A EP 20700919A EP 3914601 A1 EP3914601 A1 EP 3914601A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- molybdenum
- different
- carbon atoms
- lubricating composition
- formula
- 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.)
- Pending
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F11/00—Compounds containing elements of Groups 6 or 16 of the Periodic Table
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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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M133/08—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F11/00—Compounds containing elements of Groups 6 or 16 of the Periodic Table
- C07F11/005—Compounds containing elements of Groups 6 or 16 of the Periodic Table compounds without a metal-carbon linkage
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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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/10—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
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-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
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
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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
- C10M159/18—Complexes with metals
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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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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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
- C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions used as base material
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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
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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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
- C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
- 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
- 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
- C10M2227/066—Organic compounds derived from inorganic acids or metal salts derived from Mo or W
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- 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
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- 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
- C10N2030/54—Fuel economy
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- 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
Definitions
- the present invention relates to the field of lubricating compositions, in particular the fuel economy (FE or fuel eco) properties of the lubricating compositions and the resistance to friction. More specifically, the invention relates to a dinuclear molybdenum complex for improving the fuel economy properties of a lubricating composition comprising at least one base oil.
- Lubricating compositions for motor vehicles must be adaptable to all of these conditions of use and thus must have improved properties and performance.
- Lubricating compositions for engines must therefore fulfill many purposes.
- the lubrication of the parts sliding over one another plays a decisive role, in particular in reducing the friction between these parts and consequently the wear thereof, allowing in particular fuel savings.
- Lubricating compositions for motor vehicles which save fuel are often referred to as fuel economy (FE).
- the improvement of the FE (fuel eco) performance level is constantly sought after in the formulation of automotive lubricants.
- organomolybdenum compounds it is known to add friction modifiers such as organomolybdenum compounds to lubricating compositions in order to lower the coefficient of friction.
- the addition of such compounds allows in particular fuel savings and gives the lubricant with FE properties.
- the organomolybdenum compound forms in particular M0S 2 (lamellar molybdenum disulphide) which allows friction to be reduced.
- Organomolybdenum compounds containing sulfur are fragile and can be degraded by external chemical or thermal phenomena such as oxidation, hydrolysis, thermal decomposition, side reactions with other additives. Compounds or their degradation products can also precipitate and lose their Fuel Eco performance of the lubricant composition (and therefore fuel economy) over time or cause cleanliness or corrosion problems.
- organic friction modifiers which are, however, less effective.
- An increase in the amount of organomolybdenum compound has also been considered, however, this can lead to a risk of engine fouling and / or copper corrosion as well as a significant increase in the cost of formulating the lubricant composition.
- An objective of the present invention is to provide a stabilized molybdenum complex which in particular does not present a problem of precipitation or degradation due to various external chemical or thermal phenomena.
- Another objective of the present invention is also to provide a lubricating composition having improved FE properties.
- Another objective of the present invention is to provide a lubricating composition which makes it possible to reduce the coefficient of friction.
- Yet another objective of the present invention is to provide an organomolybdenum compound which is less sensitive to various external chemical or thermal phenomena.
- R represents an alkyl, linear or branched, comprising from 3 to 30 carbon atoms, preferably from 3 to 20, advantageously from 7 to 17 carbon atoms;
- n 2 or 3;
- R 2 and R 3 identical or different, represent a group O, OR, NR ' 2 , COOR', or COO, where R ', identical or different, represents a hydrogen atom or an alkali or alkaline earth metal, preferably R 'is H, preferably R 2 and R 3 which are identical or different, represent an OH or NH 2 group .
- the compound of formula (I) is chosen from the following compounds:
- the dinuclear complexes according to the present invention are complexes comprising two molybdenum atoms, each preferably having an octahedral structure, and being complexed with a compound of formula (I).
- the dinuclear complexes of the present invention preferably correspond to the following formula (II):
- R and n are as defined above and each of X, identical or different, represents O, OR, NR ' 2 , COOR', or COO, where R ', identical or different, represents a hydrogen atom or an alkali metal or alkaline earth metal, preferably R 'is H, preferably X is OH or NH 2 .
- this complex does not contain sulfur.
- a ligand of formula (I) makes it possible to stabilize the molybdenum, or even to protect the molybdenum from various external chemical and thermal phenomena, and consequently to promote sulphurization with sulfur compounds present in lubricant such as DTPZn for example.
- the complex according to the invention allows obtaining a low coefficient of friction, an improvement of the FE properties of the lubricant and thus a fuel economy.
- the complexes according to the present invention are obtained by a process comprising the reaction between a molybdenum compound and at least one compound of formula (I).
- the molybdenum compound can be M0O3, an inorganic product containing molybdenum such as ammonium molybdate, molybdenum chloride, molybdenum oxychloride or an organomolybdenum compound which according to the present invention can be chosen from organic molybdenum complexes comprising at least one element chemical molybdenum (Mo) and at least one ligand such as a carboxylate ligand, an ester ligand, an amide ligand, a dithiophosphate ligand, a dithiocarbamate ligand.
- Mo element chemical molybdenum
- the process corresponds to a complexation of molybdenum with the compounds of formula (I) according to the invention by dissolving an inorganic compound with formation of a complex or by exchange of ligand in the case of the use of an organomolybdenum compound.
- the organic complexes of molybdenum with carboxylates, esters, amides can be obtained by reaction of molybdenum oxide or ammonium molybdates with fatty substances, glycerides, fatty acids or derivatives of fatty acids (esters , amines, amides, ).
- the carboxylate ligands, the ester ligands and the amide ligands are free from sulfur and phosphorus.
- the organomolybdenum compound of the invention is chosen from complexes of molybdenum with amide ligands, mainly prepared by reaction of a source of molybdenum, which can be for example molybdenum trioxide, and of a derivative of amine, and of fatty acids comprising, for example, from 4 to 36 carbon atoms, such as, for example, the fatty acids contained in vegetable or animal oils.
- a source of molybdenum which can be for example molybdenum trioxide, and of a derivative of amine, and of fatty acids comprising, for example, from 4 to 36 carbon atoms, such as, for example, the fatty acids contained in vegetable or animal oils.
- a source of molybdenum which can be for example molybdenum trioxide, and of a derivative of amine, and of fatty acids comprising, for example, from 4 to 36 carbon atoms, such as, for example, the fatty acids contained in vegetable or animal oils.
- - X 1 represents an oxygen atom or a nitrogen atom
- - X 2 represents an oxygen atom or a nitrogen atom
- - n or m represents 1 when respectively X 1 or X 2 represents an oxygen atom
- - n or m represents 2 when respectively X 1 or X 2 represents a nitrogen atom
- molybdenum chosen from molybdenum trioxide or molybdates, preferably ammonium molybdate.
- the organomolybdenum compound can comprise from 0.1 to 30% by weight, preferably from 0.1 to 20%, more preferably from 2 to 8.5% by weight of molybdenum relative to to the total weight of the organomolybdenum complex.
- the organomolybdenum compound comprises at least one organic molybdenum complex of formula (III), (IV) or (V), alone or as a mixture:
- X 1 represents an oxygen atom or a nitrogen atom
- X 2 represents an oxygen atom or a nitrogen atom
- n 1 when X 1 represents an oxygen atom and m represents 1 when X 2 represents an oxygen atom; n represents 2 when X 1 represents a nitrogen atom and m represents 2 when X 2 represents a nitrogen atom;
- R 1 represents a linear or branched, saturated or unsaturated alkyl group comprising from 4 to 36 carbon atoms, preferably from 4 to 20 carbon atoms, advantageously from 6 to 18 carbon atoms;
- X 1 represents an oxygen atom or a nitrogen atom
- X 2 represents an oxygen atom or a nitrogen atom
- n 2 when X 1 represents a nitrogen atom and m represents 2 when X 2 represents a nitrogen atom;
- R 1 represents a linear or branched, saturated or unsaturated alkyl group comprising from 4 to 36 carbon atoms, preferably from 4 to 20 carbon atoms, advantageously from 6 to 18 carbon atoms;
- R2 represents a linear or branched, saturated or unsaturated alkyl group comprising from 4 to 36 carbon atoms, preferably from 4 to 20 carbon atoms, advantageously from 6 to 18 carbon atoms;
- R 1 represents a linear or branched, saturated or unsaturated alkyl group comprising from 4 to 36 carbon atoms, preferably from 4 to 20 carbon atoms, advantageously from 6 to 18 carbon atoms.
- the organic molybdenum complex of formula (III), (IV) or (V) is prepared by reaction:
- molybdenum chosen from molybdenum trioxide or molybdates, preferably ammonium molybdate.
- the organic molybdenum complex of formula (III) consists of at least one compound of formula (III-a) or (III-b), alone or as a mixture:
- R 1 represents a linear or branched, saturated or unsaturated alkyl group comprising from 4 to 36 carbon atoms, preferably from 4 to 20 carbon atoms, advantageously from 6 to 18 carbon atoms,
- R 1 represents a linear or branched, saturated or unsaturated alkyl group comprising from 4 to 36 carbon atoms, preferably from 4 to 20 carbon atoms, advantageously from 6 to 18 carbon atoms.
- the organomolybdenum compound is chosen from organic complexes of molybdenum with dithiophosphate ligands or organic complexes of molybdenum with dithiocarbamate ligands.
- the organic complexes of molybdenum with dithiophosphate ligands are also called molybdenum dithiophosphates or Mo-DTP compounds and organic complexes of molybdenum with dithiocarbamate ligands are also called molybdenum dithiocarbamates or Mo-DTC compounds .
- the organomolybdenum compound is chosen from molybdenum dithiocarbamates.
- Mo-DTC compounds are complexes formed from a metal nucleus of molybdenum bound to one or more ligands, the ligand being an alkyl dithiocarbamate group. These compounds are well known to those skilled in the art.
- the Mo-DTC compound can comprise from 1 to 40%, preferably from 2 to 30%, more preferably from 3 to 28%, advantageously from 4 to 15% by weight of molybdenum, relative to the total weight of the Mo-DTC compound.
- the Mo-DTC compound can comprise from 1 to 40%, preferably from 2 to 30%, more preferably from 3 to 28%, advantageously from 4 to 15% by weight of sulfur , relative to the total weight of the Mo-DTC compound.
- the Mo-DTC compound can be chosen from those whose nucleus has two molybdenum atoms (also called dimeric Mo-DTC) and those whose nucleus has three molybdenum atoms (also called Trimeric Mo-DTCs).
- the trimeric Mo-DTC compounds correspond to the formula Mo3S k L n in which:
- k represents an integer at least equal to 4, preferably ranging from 4 to 10, advantageously from 4 to 7,
- n is an integer ranging from 1 to 4, and
- L being an alkyl dithiocarbamate group comprising from 1 to 100 carbon atoms, preferably from 1 to 40 carbon atoms, advantageously from 3 to 20 carbon atoms.
- trimeric Mo-DTC compounds As examples of trimeric Mo-DTC compounds according to the invention, mention may be made of the compounds and their preparation processes as described in documents WO 98/26030 and US 2003/022954.
- the Mo-DTC compound is a dimeric Mo-DTC compound.
- dimeric Mo-DTC compounds mention may be made of the compounds and their preparation processes as described in documents EP 0757093, EP 0719851, EP 0743354 or EP 1013749.
- the dimeric Mo-DTC compounds generally correspond to the compounds of formula (VI): in which :
- R 3 , FU, R 5 , R 6 identical or different, independently represent a hydrocarbon group chosen from alkyl, alkenyl, aryl, cycloalkyl or cycloalkenyl groups,
- X 3 , X 4 , X 5 and Cb identical or different, independently represent an oxygen atom or a sulfur atom.
- alkyl group within the meaning of the invention, is meant, unless otherwise indicated, and in particular for R 3 , R, R 5 and R 6 of formula (VI), a hydrocarbon group, linear or branched, saturated or unsaturated, comprising of 1 to 24 carbon atoms, preferably 4 to 18 carbon atoms.
- the alkyl group is chosen from the group formed by methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, iso-pentyl, neopentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, isotridecyl, tetradecyl, l 'hexadecyl, stearyl, icosyl, docosyl, tetracosyl, triacontyl, 2-ethylhexyl, 2-butyloctyl, 2-butyldecyl, 2-hexyloctyl, 2-hexyldecyl, 2-octyldecyl, 2-hexyldodecyl , 2-
- alkenyl group within the meaning of the present invention is meant a linear or branched hydrocarbon group comprising at least one double bond and comprising from 2 to 24 carbon atoms.
- the alkenyl group can be chosen from vinyl, allyl, propenyl, butenyl, isobutenyl, pentenyl, isopentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, l 'undecenyl, dodecenyl, tetradecenyl and oleic.
- aryl group means a polycyclic aromatic hydrocarbon or an aromatic group, whether or not substituted by an alkyl group.
- the aryl group can contain from 6 to 24 carbon atoms.
- the aryl group can be selected from the group formed by phenyl, toluyl, xylyl, cumenyl, mesityl, benzyl, phenethyl, styryl, cinnamyl, benzhydryl, trityl, ethylphenyl, propylphenyl, butylphenyl, pentylphenyl, hexylphenyl, heptylphenyl, octylphenyl, nonylphenyl, decylphenyl, undecylphenyl, dodecylphenyl, phenylphenyl, benzylphenyl, phenyl-styrene, p-cumylphenyl and naphthyl.
- cycloalkyl group means a polycyclic or cyclic hydrocarbon, substituted or not by an alkyl group.
- cycloalkenyl group means a polycyclic or cyclic hydrocarbon, whether or not substituted by an alkyl group, and comprising at least one unsaturation.
- Cycloalkyl groups and cycloalkenyl groups can have from 3 to 24 carbon atoms.
- the cycloalkyl groups and the cycloalkenyl groups may be chosen, in a nonlimiting manner, from the group consisting of cyclopentyl, cyclohexyl, cycloheptyl, methylcyclopentyl, methylcyclohexyl, methylcycloheptyl, cyclopentenyl, cyclohexenyl, cycloheptenyl, methylcyclopentenyl, methylcyclohexenyl.
- R 3 , FU, Rs and R6 of formula (VI), identical or different, independently represent an alkyl group comprising from 1 to 24 carbon atoms, preferably from 4 to 18 carbon atoms or an alkenyl group comprising from 2 to 24 carbon atoms.
- X 3 , X4, X5 and Cb may be identical and may represent a sulfur atom.
- X 3 , X, X5 and Cb may be the same and may be an oxygen atom.
- X 3 and X 4 can represent a sulfur atom and X 5 and Cb can represent an oxygen atom.
- X 3 and X 4 can represent an oxygen atom and X 5 and Cb can represent a sulfur atom.
- the ratio of the number of sulfur atoms relative to the number of oxygen atoms (S / O) of the Mo-DTC compound can vary from (1/3) to ( 3/1).
- the Mo-DTC compound of formula (VI) can be chosen from a symmetrical Mo-DTC compound, an asymmetric Mo-DTC compound and their combination.
- symmetrical Mo-DTC compound according to the invention is meant an Mo-DTC compound of formula (VI) in which the groups R 3 , R 4 , R 5 and R6 are identical.
- asymmetric Mo-DTC compound according to the invention is meant an Mo-DTC compound of formula (VI) in which the R 3 and FU groups are identical, the R 5 and R 6 groups are identical and the R 3 and R groups 4 are different from the R 5 and R 6 groups .
- the Mo-DTC compound is a mixture of at least one symmetrical Mo-DTC compound and at least one asymmetric Mo-DTC compound.
- R 3 and R 4 of formula (VI), which are identical, represent an alkyl group comprising from 5 to 15 carbon atoms, preferably from 8 to 13 carbon atoms
- R 5 and R 6 of formula (VI), which are identical represent an alkyl group comprising from 5 to 15 carbon atoms, preferably from 8 to 13 carbon atoms
- the groups R 3 and R 4 of formula (VI) are identical or different from the R 5 and Rede groups of formula (VI).
- R 3 and R 4 of formula (VI), which are identical, represent an alkyl group comprising from 6 to 10 carbon atoms and R 5 and R 6 of formula (VI) , identical, represent an alkyl group comprising from 10 to 15 carbon atoms, and the R 3 and R 4 groups of formula (VI) are different from the R 5 and Rede groups of formula (VI).
- R 3 and R 4 of formula (VI), which are identical, represent an alkyl group comprising from 10 to 15 carbon atoms and R 5 and R 6 of formula (VI) , identical, represent an alkyl group comprising from 6 to 10 carbon atoms, and the R 3 and R 4 groups of formula (VI) are different from the R 5 and Rede groups of formula (VI).
- R 3 , R 4 , R 5 and R 6 which are identical, represent an alkyl group comprising from 5 to 15 carbon atoms, preferably from 8 to 13 carbon atoms.
- the Mo-DTC compound is chosen from the compounds of formula (V) in which:
- R 3 of formula (VI) represents an alkyl group comprising 8 carbon atoms or an alkyl group comprising 13 carbon atoms,
- R 4 of formula (VI) represents an alkyl group comprising 8 carbon atoms or an alkyl group comprising 13 carbon atoms,
- - R 5 of formula (VI) represents an alkyl group comprising 8 carbon atoms or an alkyl group comprising 13 carbon atoms
- - FÎ 6 of formula (VI) represents an alkyl group comprising 8 carbon atoms or an alkyl group comprising 13 carbon atoms.
- the Mo-DTC compound is chosen from the compounds of formula (Vl-a)
- the Mo-DTC compound is a mixture:
- Mo-DTC compound of formula (Vl-a) in which R 3 , R 4 , Rs and R 6 represent an alkyl group comprising 13 carbon atoms, and / or
- Mo-DTC compounds As examples of Mo-DTC compounds, mention may be made of the products Molyvan L®, Molyvan 807® or Molyvan 822® marketed by the company R. T Vanderbilt Compagny® or the products Sakura-lube 200®, Sakura-lube 165®, Sakura -lube 525® or Sakura-lube 600® marketed by the company Adeka.
- the process for preparing the dinuclear complex according to the invention is carried out at a temperature between 0 ° C and 250 ° C, preferably between 20 and 150 ° C, preferably at room temperature, for example between 15 and 30 ° C. .
- the N / Mo atomic ratio in the mixture of the process of the invention is between 1 and 50, preferably between 2 and 10.
- the process takes place in the presence of water.
- water will advantageously play a role of catalyst.
- the molar ratio between water and the compound of formula (I) is between 0.5 and 10.
- the present invention also relates to a lubricating composition
- a lubricating composition comprising:
- the lubricating composition according to the invention comprises from 0.001 to 0.1% by weight of dinuclear molybdenum complex according to the invention relative to the total weight of the composition.
- the lubricating composition according to the invention can comprise any type of mineral, synthetic or natural, animal or plant lubricating base oil known to those skilled in the art.
- the base oils used in the lubricating compositions according to the invention can be oils of mineral or synthetic origins belonging to groups I to V according to the classes defined in the API classification (or their equivalents according to the ATIEL classification) (Table 1). or their mixtures.
- the mineral base oils according to the invention include all types of base oils obtained by atmospheric and vacuum distillation of crude oil, followed by refining operations such as solvent extraction, dealphating, solvent dewaxing, hydrotreatment, hydrocracking. , hydroisomerization.
- Mixtures of synthetic and mineral oils can also be used.
- the base oils of the lubricating compositions according to the invention can also be chosen from synthetic oils, such as certain esters of carboxylic acids and alcohols, and from polyalphaolefins.
- the polyalphaolefins used as base oils are for example obtained from monomers comprising from 4 to 32 carbon atoms, for example from decene, octene or dodecene, and whose viscosity at 100 ° C is between 1 , 5 and 15 mm 2 . s 1 according to ASTM D445. Their average molecular mass is generally between 250 and 3000 according to the ASTM D5296 standard.
- the base oils of the present invention are chosen from the above base oils whose aromatic content is between 0 and 45%, preferably between 0 and 30%.
- the aromatic content of oils is measured according to the UV Burdett method.
- the aromaticity of the base oil is a trait that optimizes the operation of the polymer as a function of temperature. The choice of an oil low in aromatic allows an optimum at a higher temperature.
- the lubricating composition according to the invention comprises at least 50% by weight of base oils relative to the total weight of the composition.
- the lubricating composition according to the invention comprises at least 60% by mass, or even at least 70% by mass, of base oils relative to the total mass of the composition.
- the lubricating composition according to the invention comprises from 60 to 99.5% by mass of base oils, preferably from 70 to 99.5% by mass of base oils, relative to the total mass of the composition.
- the preferred additional additives for the lubricating composition according to the invention are chosen from detergent additives, anti-wear additives, friction modifying additives other than organomolybdenum compounds, extreme pressure additives, dispersants, pour point improvers. , anti-foaming agents, thickeners and mixtures thereof.
- the lubricating composition according to the invention comprises at least one anti-wear additive, at least one extreme pressure additive or mixtures thereof.
- Antiwear additives and extreme pressure additives protect rubbing surfaces by forming a protective film adsorbed on these surfaces.
- the anti-wear additives are chosen from phosphosulfur additives such as metal alkylthiophosphates, in particular zinc alkylthiophosphates, and more specifically zinc dialkyldithiophosphates or ZnDTP.
- the preferred compounds are of formula Zn ((SP (S) (OR 1 ) (OR 2 )) 2, in which R 1 and R 2 , identical or different, independently represent an alkyl group, preferably an alkyl group comprising from 1 to 18 carbon atoms.
- Amine phosphates are also antiwear additives which can be used in the lubricant composition according to the invention.
- the phosphorus provided by these additives can act as a poison in automobile catalytic systems because these additives generate ash.
- additives which do not provide phosphorus such as, for example, polysulfides, in particular sulfur-containing olefins.
- the lubricating composition according to the invention can comprise from 0.01 to 6% by mass, preferably from 0.05 to 4% by mass, more preferably from 0.1 to 2% by mass relative to the mass total lubricant composition, antiwear additives and extreme pressure additives.
- the lubricating composition according to the invention can comprise at least one additional friction modifier additive different from organomolybdenum compounds.
- the additional friction modifier additive can be chosen from a compound providing metallic elements and an ash-free compound.
- the compounds providing metallic elements mention may be made of transition metal complexes such as Sb, Sn, Fe, Cu, Zn, the ligands of which may be hydrocarbon compounds comprising oxygen, nitrogen, sulfur or atoms. phosphorus.
- the ash-free friction modifier additives are generally of organic origin and can be selected from monoesters of fatty acids and polyols, fatty epoxides, borate fatty epoxides; or fatty acid glycerol esters.
- the fatty compounds comprise at least one hydrocarbon group comprising from 10 to 24 carbon atoms.
- the lubricating composition according to the invention can comprise at least one antioxidant additive.
- the antioxidant additive generally makes it possible to delay the degradation of the lubricant composition in service. This degradation can be reflected in particular by the formation of deposits, by the presence of sludge or by an increase in the viscosity of the lubricating composition.
- Antioxidant additives act in particular as radical inhibitors or destroyers of hydroperoxides.
- antioxidant additives commonly used there may be mentioned antioxidant additives of phenolic type, antioxidant additives of amine type, phosphosulfurized antioxidant additives. Some of these antioxidant additives, for example phosphosulfurized antioxidant additives, can generate ash.
- the phenolic antioxidant additives can be free from ash or be in the form of neutral or basic metal salts.
- the antioxidant additives can in particular be chosen from sterically hindered phenols, sterically hindered phenol esters and sterically hindered phenols comprising a thioether bridge, diphenylamines, diphenylamines substituted with at least one C1-C12 alkyl group, N, N '-dialkyl-aryl-diamines and mixtures thereof.
- the sterically hindered phenols are chosen from compounds comprising a phenol group of which at least one carbon vicinal of the carbon carrying the alcohol function is substituted by at least one C1-C10 alkyl group, preferably an alkyl group.
- Amino compounds are another class of antioxidant additives that can be used, optionally in combination with phenolic antioxidant additives.
- Examples of amino compounds are aromatic amines, for example aromatic amines of formula NR 7 R 8 R 9 in which R 7 represents an aliphatic group or an aromatic group, optionally substituted, R 8 represents an aromatic group, optionally substituted, R 9 represents a hydrogen atom, an alkyl group, an aryl group or a group of formula R 10 S (O) z R 11 in which R 10 represents an alkylene group or an alkenylene group, R 11 represents an alkyl group, a alkenyl group or an aryl group and z represents 0, 1 or 2.
- Sulfurized alkyl phenols or their alkali and alkaline earth metal salts can also be used as antioxidant additives.
- the lubricating composition according to the invention can contain all types of antioxidant additives known to those skilled in the art.
- the lubricating composition comprises at least one antioxidant additive free of ash.
- the lubricating composition according to the invention comprises from 0.5 to 2% by weight, relative to the total mass of the composition, of at least one antioxidant additive.
- the lubricating composition according to the invention can also comprise at least one detergent additive.
- Detergent additives generally reduce the formation of varnish on the surface of metal parts by dissolving oxidation and combustion by-products.
- the detergent additives which can be used in the lubricating composition according to the invention are generally known to those skilled in the art.
- the detergent additives can be anionic compounds comprising a long lipophilic hydrocarbon chain and a hydrophilic head.
- the associated cation can be a metallic cation of an alkali or alkaline earth metal.
- the detergent additives are preferably chosen from alkali metal or alkaline earth metal salts of carboxylic acids, sulphonates, salicylates, naphthenates, as well as salts of phenates.
- the alkali metals and alkaline earth metals are preferably calcium, magnesium, sodium or barium.
- metal salts generally comprise the metal in a stoichiometric amount or else in excess, therefore in an amount greater than the stoichiometric amount.
- overbased detergent additives the excess metal providing the overbased character to the detergent additive is then generally in the form of a metal salt insoluble in oil, for example a carbonate, a hydroxide, an oxalate, an acetate, a glutamate, preferably a carbonate .
- the lubricating composition according to the invention can comprise from 2 to 4% by weight of detergent additive relative to the total mass of the lubricating composition.
- the lubricating composition according to the invention can also comprise at least one pour point depressant additive.
- the pour point depressant additives By slowing the formation of paraffin crystals, the pour point depressant additives generally improve the cold behavior of the lubricating composition according to the invention.
- pour point depressant additives examples include polymethacrylates, polyacrylates, polyarylamides, polyalkylphenols, polyalkylnaphthalenes, alkylated polystyrenes.
- the lubricating composition according to the invention can also comprise at least one dispersing agent.
- the dispersing agent can be chosen from Mannich bases, succinimides and their derivatives. Also advantageously, the lubricating composition according to the invention can comprise from 0.2 to 10% by weight of dispersing agent relative to the total weight of the lubricating composition.
- the lubricating composition of the present invention may also include at least one additional viscosity index improving polymer.
- additional polymer improving the viscosity index there may be mentioned polymer esters, homopolymers or copolymers, hydrogenated or non-hydrogenated, of styrene, butadiene and isoprene, polymethacrylates (PMA).
- the lubricating composition according to the invention preferably further comprises at least one anti-wear additive, for example ZnDTP (zinc dithiophosphate).
- ZnDTP zinc dithiophosphate
- the present invention also relates to a method for lubricating an engine, in particular an internal combustion engine, comprising lubricating engine parts with the lubricating composition of the invention.
- the present invention also relates to the use of a compound of formula (I) to protect molybdenum from its degradation in the lubricating composition, in particular to stabilize molybdenum.
- the present invention also relates to the use of the dinuclear molybdenum complex according to the invention in a lubricating composition comprising at least one base oil, for improving the Fuel Eco properties of the lubricating composition and maintaining them over time.
- the dinuclear molybdenum complex according to the invention is used in an amount of 100 ppm to 1000 ppm molybdenum, preferably 400 to 800 ppm molybdenum, by weight relative to the total weight of the lubricating composition.
- the present invention also relates to a process for protecting the degradation, in particular by hydrolysis, of the molybdenum of a lubricating composition comprising at least one base oil, comprising the complexation of said molybdenum in the form of a dinuclear complex with at least one compound. of formula (I) according to the invention.
- the present invention also relates to a process for improving the properties of Fuel Eco of a lubricating composition comprising at least one base oil, comprising the addition, in said lubricating composition, of a dinuclear complex according to invention.
- a dinuclear complex according to the invention is used in an amount of 100 ppm to 1000 ppm molybdenum, preferably 400 to 800 ppm molybdenum, by weight relative to the total weight of the lubricating composition.
- the use of the dinuclear molybdenum complex according to the invention allows the prolongation over time of the properties of the organomolybdenum compound, in particular as a lubricating agent, preferably as a friction modifier.
- compositions of the invention comprising the complex of the invention exhibit a low coefficient of friction which is maintained over time.
- Figure 1 gives the molbdenum content of compositions according to the invention and comparative compositions after 1 month.
- the present application will now be described with the aid of non-limiting examples.
- Molybdenum dinuclear complexes are obtained by mixing MoO3 with the following amines at room temperature for 2 weeks.
- the weight of amine used is equal to 3x (0.5 / n)% n corresponding to the number of nitrogen in the molecule.
- Lubricating compositions are then produced from each of the complexes obtained by mixing a PAO type base oil with the complex (so as to have 400 ppm of Mo in the lubricating composition) and 1% by weight of ZnDTP. The mixture is heated for 30 min at 60 ° C.
- Example 1 The lubricating compositions obtained in Example 1 were stored for several months in order to assess their stability.
- Example 3 Study of the coefficient of friction as a function of time
- the tests were carried out, for each of the compositions of Example 1, on a tribometer with a ball (0 12 mm) -plane contact, both made of 100C6 steel.
- the conditions used for these tests are as follows: a normal load of 7N, which corresponds to a maximum contact pressure of 540 MPa, a temperature of 110 ° C., a speed of 5 Hz, an amplitude of 5 mm. 5 A / R cycles are performed in 1 s, which corresponds to 18,000 cycles per hour.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1900546A FR3091874B1 (fr) | 2019-01-22 | 2019-01-22 | Complexe dinucléaire de molybdène et son utilisation dans des compositions lubrifiantes |
| PCT/EP2020/051364 WO2020152137A1 (fr) | 2019-01-22 | 2020-01-21 | Complexe dinucléaire de molybdène et son utilisation dans des compositions lubrifiantes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3914601A1 true EP3914601A1 (fr) | 2021-12-01 |
Family
ID=67383862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20700919.2A Pending EP3914601A1 (fr) | 2019-01-22 | 2020-01-21 | Complexe dinucléaire de molybdène et son utilisation dans des compositions lubrifiantes |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11572522B2 (fr) |
| EP (1) | EP3914601A1 (fr) |
| JP (1) | JP2022518794A (fr) |
| KR (1) | KR20220035319A (fr) |
| CN (1) | CN113661167A (fr) |
| FR (1) | FR3091874B1 (fr) |
| WO (1) | WO2020152137A1 (fr) |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889647A (en) | 1985-11-14 | 1989-12-26 | R. T. Vanderbilt Company, Inc. | Organic molybdenum complexes |
| US5137647A (en) | 1991-12-09 | 1992-08-11 | R. T. Vanderbilt Company, Inc. | Organic molybdenum complexes |
| JPH07197068A (ja) | 1993-12-30 | 1995-08-01 | Tonen Corp | 潤滑油組成物 |
| US5412130A (en) | 1994-06-08 | 1995-05-02 | R. T. Vanderbilt Company, Inc. | Method for preparation of organic molybdenum compounds |
| JP3454593B2 (ja) | 1994-12-27 | 2003-10-06 | 旭電化工業株式会社 | 潤滑油組成物 |
| JPH0931483A (ja) | 1995-07-20 | 1997-02-04 | Tonen Corp | 潤滑油組成物 |
| DE69707714T2 (de) | 1996-12-13 | 2002-04-25 | Infineum Usa L.P., Linden | Organische molybdänkomplexe enthaltende schmierölzusammensetzungen |
| JP4201902B2 (ja) | 1998-12-24 | 2008-12-24 | 株式会社Adeka | 潤滑性組成物 |
| US6329327B1 (en) * | 1999-09-30 | 2001-12-11 | Asahi Denka Kogyo, K.K. | Lubricant and lubricating composition |
| JP2001164281A (ja) * | 1999-09-30 | 2001-06-19 | Asahi Denka Kogyo Kk | 潤滑剤及び潤滑性組成物 |
| WO2002048225A1 (fr) | 2000-12-15 | 2002-06-20 | Japan U-Pica Company, Ltd. | Dispersion de resine thermodurcissable aqueuse, milieu filtrant de precision frp produit avec la dispersion aqueuse et leur procede de production |
| JP4066132B2 (ja) * | 2001-10-15 | 2008-03-26 | 株式会社Adeka | 潤滑剤及び潤滑性組成物 |
| US7205423B1 (en) * | 2005-09-23 | 2007-04-17 | R.T. Vanderbilt Company, Inc. | Process for the preparation of organo-molybdenum compounds |
| CN101486733B (zh) * | 2009-03-09 | 2011-05-25 | 华南师范大学 | 含氧桥双核钼原子簇化合物及其制备方法和用途 |
| JP5512344B2 (ja) * | 2010-03-23 | 2014-06-04 | 株式会社Adeka | 内燃機関用潤滑油組成物 |
| FR3014898B1 (fr) * | 2013-12-17 | 2016-01-29 | Total Marketing Services | Composition lubrifiante a base de triamines grasses |
| JP6375117B2 (ja) * | 2014-01-27 | 2018-08-15 | 出光興産株式会社 | 内燃機関用潤滑油組成物 |
| JP6114330B2 (ja) * | 2015-03-31 | 2017-04-12 | 出光興産株式会社 | 潤滑油組成物及び内燃機関の摩擦低減方法 |
| CN107683323A (zh) * | 2015-07-01 | 2018-02-09 | 出光兴产株式会社 | 润滑油组合物、降低内燃机的摩擦的方法、和润滑油组合物的制造方法 |
| CN112823199B (zh) * | 2018-10-22 | 2022-10-04 | 出光兴产株式会社 | 润滑油组合物及其制造方法 |
-
2019
- 2019-01-22 FR FR1900546A patent/FR3091874B1/fr active Active
-
2020
- 2020-01-21 EP EP20700919.2A patent/EP3914601A1/fr active Pending
- 2020-01-21 WO PCT/EP2020/051364 patent/WO2020152137A1/fr not_active Ceased
- 2020-01-21 JP JP2021543293A patent/JP2022518794A/ja active Pending
- 2020-01-21 KR KR1020217023326A patent/KR20220035319A/ko not_active Ceased
- 2020-01-21 CN CN202080010198.5A patent/CN113661167A/zh active Pending
- 2020-01-21 US US17/424,999 patent/US11572522B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022518794A (ja) | 2022-03-16 |
| CN113661167A (zh) | 2021-11-16 |
| FR3091874B1 (fr) | 2024-10-18 |
| KR20220035319A (ko) | 2022-03-22 |
| FR3091874A1 (fr) | 2020-07-24 |
| US11572522B2 (en) | 2023-02-07 |
| WO2020152137A1 (fr) | 2020-07-30 |
| US20220089966A1 (en) | 2022-03-24 |
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Owner name: UNIVERSITE CLAUDE BERNARD LYON 1 Owner name: ECOLE CENTRALE DE LYON Owner name: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Owner name: TOTALENERGIES ONETECH |