EP3707226A2 - Composition lubrifiante pour engrenage - Google Patents
Composition lubrifiante pour engrenageInfo
- Publication number
- EP3707226A2 EP3707226A2 EP18875007.9A EP18875007A EP3707226A2 EP 3707226 A2 EP3707226 A2 EP 3707226A2 EP 18875007 A EP18875007 A EP 18875007A EP 3707226 A2 EP3707226 A2 EP 3707226A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- additives
- weight
- equal
- hydrocarbon oil
- chosen
- 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.)
- Granted
Links
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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
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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
- 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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- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
- C10M101/025—Petroleum fractions waxes
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- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
- C10M125/24—Compounds containing phosphorus, arsenic or antimony
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- 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
- C10M129/04—Hydroxy compounds
- C10M129/10—Hydroxy compounds having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
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- 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
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- 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
- C10M133/38—Heterocyclic nitrogen compounds
- C10M133/44—Five-membered ring containing nitrogen and carbon only
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- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
- C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
- C10M135/18—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
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- C10M135/32—Heterocyclic sulfur, selenium or tellurium compounds
- C10M135/36—Heterocyclic sulfur, selenium or tellurium compounds the ring containing sulfur and carbon with nitrogen or oxygen
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- C10M137/04—Phosphate esters
- C10M137/10—Thio derivatives
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- 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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- C10M2201/08—Inorganic acids or salts thereof
- C10M2201/084—Inorganic acids or salts thereof containing sulfur, selenium or tellurium
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- C10M2201/085—Phosphorus oxides, acids or salts
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- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- C10M2203/1025—Aliphatic fractions used as base material
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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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/081—Biodegradable compounds
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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
- C10N2030/02—Pour-point; Viscosity index
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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
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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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
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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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
- C10N2030/14—Metal deactivation
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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
- C10N2030/18—Anti-foaming property
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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
- C10N2030/40—Low content or no content compositions
- C10N2030/45—Ash-less or low ash content
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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
- C10N2030/64—Environmental friendly compositions
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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
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
Definitions
- the present invention relates to the use of a composition as a gear lubricant.
- Said lubricant compositions are classified as biodegradable, do not bioaccumulate in organisms and do not exhibit toxicity to the environment, especially the aquatic environment.
- the present invention also relates to lubricating compositions for gears. TECHNICAL BACKGROUND OF THE INVENTION
- Ecolabel or EAL lubricants are used in equipment that may have interfaces and / or contacts with a user, with air and / or with water. This applies in particular to lubricating gear compositions that can be in direct contact with water and / or air and / or with an individual and / or engaged in any other contact requiring biodegradable, non-toxic products.
- WO2008 / 152200 discloses a process for producing branched saturated hydrocarbons from a feed of biological origin.
- US 2017/0009144 describes a composition comprising 40-50% by weight of C14 paraffins and 35-45% by weight of C15 paraffins.
- Document US 2017/0121630 discloses a hydraulic fluid comprising a base oil obtained from terpenes.
- the base oil described in this document is obtained from a partial hydrogenation of terpenes, and still includes alpha-olefins.
- This document does not disclose a hydrocarbon oil comprising at least 90% by weight of isoparaffins.
- gear lubricant compositions for industrial or marine use must meet a very specific specification in terms of performance, particularly in terms of oxidation stability.
- An object of the present invention is to provide a lubricating composition having improved oxidation stability.
- the invention relates to the use of a composition as a gear lubricant, said composition comprising:
- the composition comprises:
- lubricating composition from 0.05 to 3% by weight, preferably from 0.1 to 2.5% by weight, preferably from 0.5 to 2% by weight, relative to the total weight of the lubricating composition, of at least one additive selected from antiwear additives, extreme pressure additives, additives corrosion inhibitors, metal deactivators, anti-foam additives, antioxidants, and mixtures thereof.
- the anti-wear additives are chosen from triaryl thiophosphates, carbamates and thiocarbamates, and / or the extreme-pressure additives are chosen from phosphorus-free or phos-sulfur-free additives such as phosphates, phosphorothionates, phosphonates, dithiophosphates and thiophosphates such as dialkyl dithiophosphates, and / or anticorrosion additives are chosen from N-acyl sarcosine compounds, and / or the metal deactivating additives are chosen from tolutriazole, the tolutriazole derivatives or the dimercaptothiadiazoles, and / or the anti-foam additives are chosen from silicone compounds, and / or the antioxidant additives are chosen from phenolic antioxidant additives and their mixtures.
- said at least one additive is a phenolic antioxidant, preferably chosen from compounds comprising a phenol group in which at least one vicinal carbon of the carbon carrying the alcohol function is substituted by at least one alkyl group.
- C 1 -C 10 preferably a C 1 -C 6 alkyl group, preferably a C 4 alkyl group, preferably by the ter-butyl group.
- the composition comprises at least 0.01% by weight, relative to the total weight of the composition, of at least one additive chosen from:
- anti-wear additives chosen from triaryl thiophosphates, carbamates and thiocarbamates,
- extreme-pressure additives chosen from phosphorus-free or phosulfur-free ashless additives such as phosphates, phosphorothionates, phosphonates, dithiophosphates and thiophosphates such as dialkyl dithiophosphates, metal deactivating additives chosen from tolutriazole, derivatives thereof; tolutriazole or dimercaptothiadiazoles,
- the hydrocarbon oil is chosen from non-cyclic isoparaffins comprising from 14 to 18 carbon atoms.
- the hydrocarbon oil comprises:
- a content by weight of isoparaffins ranging from 90 to 100%, preferably from 95 to 100% and preferably from 98% to 100% relative to the total weight of the hydrocarbon oil, and / or a carbon content of biological origin greater than or equal to 95%, preferably greater than or equal to 98% and preferably 100%, and / or
- a content by weight of normal paraffins less than or equal to 10, preferably less than or equal to 5% and preferably less than or equal to 2% relative to the total weight of the hydrocarbon oil;
- a content by weight of naphthenic compounds less than or equal to 1%, preferably less than or equal to 0.5% and preferably less than or equal to 100 ppm relative to the total weight of the hydrocarbon oil; and or
- a content by weight of aromatic compounds of less than or equal to 500 ppm, preferably less than or equal to 300 ppm, preferentially less than or equal to
- the hydrocarbon oil has:
- a kinematic viscosity at 40 ° C. of less than or equal to 5 cSt, preferably less than or equal to 4.5 cSt and preferentially less than or equal to 4 cSt.
- the hydrocarbon oil has a distillation range of 290 ° C to 325 ° C, measured according to ASTM D86 and a kinematic viscosity at 40 ° C less than or equal to 5 cSt.
- the hydrocarbon oil is obtained by a catalytic hydrogenation process at a temperature of 80 to 180 ° C. and at a pressure of 50 to 160 bar of a charge of biological origin deoxygenated and / or isomerized.
- the composition comprises:
- hydrocarbon-based oil which comprises at least 98% by weight of isoparaffins, less than 2% by weight of normal paraffins and a content of carbon of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon-based oil, hydrocarbon oil having a kinematic viscosity at 40 ° C of less than or equal to 5 cSt,
- anti-wear additives chosen from triaryl thiophosphates, carbamates and thiocarbamates,
- extreme-pressure additives chosen from phosphate-free or phosphosulfur-free additives such as phosphates, phosphorothionates, phosphonates, dithiophosphates and thiophosphates such as dialkyl dithiophosphates,
- metal deactivating additives chosen from tolutriazole, tolutriazole derivatives or dimercaptothiadiazoles,
- antioxidants chosen from phenolic antioxidants
- the use temperature of the composition ranges from 50 to 400 ° C, preferably from 100 to 300 ° C.
- the present invention also relates to a gear lubricating composition
- a gear lubricating composition comprising:
- a hydrocarbon oil which comprises a content by weight of isoparaffins ranging from 90 to 100%, a content by weight of normal paraffins ranging from 0 to 10 % and a carbon content of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, and
- said additive is a phenolic antioxidant then said phenolic antioxidant is present in an amount of at least 0.015% by weight, based on the total weight of the lubricating composition.
- the lubricating composition comprises at least 0.1% by weight, relative to the total weight of the lubricating composition of at least one additive selected among the anti-wear additives, extreme pressure additives, anticorrosive additives, metal deactivating additives, anti-foam additives, phenolic antioxidant additives, and mixtures thereof.
- the additive the lubricating composition is as defined within the scope of the use according to the invention and / or the hydrocarbon oil is as defined in the context of the use according to the invention.
- the lubricant composition according to the invention makes it possible to have a composition that is classified as non-irritating and biodegradable.
- the lubricant composition according to the invention makes it possible to obtain particularly effective gear lubricating compositions.
- the lubricant composition according to the invention has improved oxidation stability compared to currently used gear compositions.
- the lubricant composition according to the invention may contain a reduced amount of antioxidant additives or no antioxidant additives at all.
- the invention primarily relates to the use of a composition as a gear lubricant, said composition comprising:
- At least 97% by weight of at least one hydrocarbon oil which comprises a content by weight of isoparaffins ranging from 90 to 100%, a content by weight of normal paraffins ranging from 0 to 10% and a carbon content of origin greater than or equal to 90% by weight relative to the total weight of the hydrocarbon-based oil, and at least 0.01% by weight of at least one additive chosen from anti-wear additives, extreme pressure additives and additives. anticorrosion, metal deactivating additives, anti-foam additives, antioxidants, and mixtures thereof, based on the total weight of the lubricating composition.
- the expression "between” should be understood to include the aforementioned bounds.
- the lubricant composition comprises:
- lubricating composition from 97 to 99.99% by weight, preferably from 97 to 99.95% by weight, preferably from 97.5 to 99.9% by weight, more preferably from 98 to 99.5% by weight, relative to total weight of the lubricating composition, hydrocarbon oil, and from 0.01 to 3% by weight, preferably from 0.05 to 3% by weight, preferably from 0.1 to 2.5% by weight, more preferably from 0.5 to 2% by weight, relative to the total weight of the lubricating composition, of at least one additive chosen from antiwear additives, extreme pressure additives, anticorrosive additives, metal deactivating additives, anti-foam additives, antioxidants selected from phenolic antioxidants, and mixtures thereof.
- additives chosen from antiwear additives, extreme pressure additives, anticorrosive additives, metal deactivating additives, anti-foam additives, antioxidants selected from phenolic antioxidants, and mixtures thereof.
- the lubricant composition essentially consists of:
- the lubricant composition meets the criteria of the European Parliament and Council Regulation (EEC) No. 66/2010 of 25 November 2009. This regulation makes it possible to establish the Ecolabel of the European Union.
- EEC European Parliament and Council Regulation
- the certification framework of the Ecological label of the European Union for Lubricants (identification number EC 511 revision 4 of 04/07/2016) details the criteria for Lubricants. Substances and mixtures subject to a limitation or exclusion are defined in this standard.
- the additional requirements for aquatic toxicity are specified (OECD methods 201 for algae, OECD 202 for daphnids, OECD 203 for fish).
- the biodegradability and bioaccumulation potential criteria are defined in this same reference document. Hydrocarbon oil:
- the lubricating composition used in the present invention comprises a hydrocarbon oil content greater than or equal to 97% by weight, preferably ranging from 97 to 99.95% by weight, preferably from 97.5 to 99.9% by weight. weight, more preferably 98 to 99.5% by weight relative to the total weight of the composition.
- the hydrocarbon oil of the lubricating composition used in the invention preferably comprises a content by weight of isoparaffinic compounds greater than or equal to 90%, preferably greater than or equal to 95% and advantageously greater than or equal to 98% relative to total weight of the hydrocarbon oil.
- the isoparaffinic compounds present in the hydrocarbon oil used according to the invention comprise from 12 to 30 carbon atoms, preferably from 13 to 19 carbon atoms, more preferably from 14 to 18 carbon atoms. carbon.
- the isoparaffinic compounds present in the hydrocarbon oil used according to the invention have a molar mass ranging from 170 to 285 g / mol, preferably ranging from 180 to 270 g / mol, even more preferably ranging from 195 to 260 g / mol.
- the hydrocarbon oil of the lubricating composition used according to the invention preferably comprises a content by weight of normal paraffins of less than or equal to 10%, preferably less than or equal to 5% and advantageously less than or equal to 2%.
- the hydrocarbon oil of the lubricating composition according to the invention advantageously comprises a majority of isoparaffins and a minority of normal paraffins. These isoparaffins are advantageously non-cyclic isoparaffins.
- the hydrocarbon oil of the lubricating composition has a mass ratio of isoparaffins to normal paraffins of at least 12: 1, preferably of at least 15: 1 and more preferably of at least 20: 1. Even more advantageously, the hydrocarbon oil of the lubricating composition used according to the invention does not contain normal paraffins.
- the hydrocarbon oil used according to the invention preferably comprises a content by weight of isoparaffins ranging from 90 to 100% and a content by weight of normal paraffins ranging from 0 to 10%, preferably from 95 to 100% of isoparaffins and 0 to 5% of normal paraffins and more preferably of 98% to 100% of isoparaffins and 0 to 2% of normal paraffins.
- the hydrocarbon oil of the lubricating composition used according to the invention preferably comprises a content by weight of isoparaffins ranging from 90 to 100% and a content of normal paraffins ranging from 0 to 10%, preferably from 95 to 100% of isoparaffins chosen from alkanes containing from 12 to 30 carbon atoms, preferably from 13 to 19 carbon atoms, more preferably from 14 to 18 carbon atoms.
- the hydrocarbon oil used according to the invention comprises:
- the hydrocarbon oil used in the lubricating composition comprises isoparaffins having 17 carbon atoms and isoparaffins having 18 carbon atoms in a combined amount ranging from 80 to 98% by weight. , based on the total weight of the hydrocarbon oil.
- the hydrocarbon oil of the lubricating composition according to the invention preferably comprises a content by weight of naphthenic compounds of less than or equal to 3%, preferably less than or equal to 1%, more preferably less than or equal to 0.5% and even more preferably less than or equal to 100 ppm.
- the hydrocarbon oil of the lubricating composition used according to the invention comprises a content by weight of isoparaffins ranging from 90 to 100%, a content by weight of normal paraffins ranging from 0 to 10 % and a weight content of naphthenes less than or equal to 1%.
- the hydrocarbon oil comprises a content by weight ranging from 95 to 100% of isoparaffins, from 0 to 5% of normal paraffins and a content by weight of naphthenes of less than or equal to 0.5%. More preferably it comprises a content in weight ranging from 98% to 100% of isoparaffins, from 0 to 2% of normal paraffins and a content by weight of naphthenes less than or equal to 100 ppm.
- the hydrocarbon oil used in the lubricant composition used according to the invention is advantageously free of aromatic compounds.
- a content by weight of aromatic compounds of less than or equal to 500 ppm, preferably less than or equal to equal to 300 ppm, preferably less than or equal to 100 ppm, more preferably less than or equal to 50 ppm and advantageously less than or equal to 20 ppm measured for example by UV spectrometry.
- the content by weight of isoparaffins, normal paraffins, naphthenes and / or aromatics of the hydrocarbon oil can be determined according to methods well known to those skilled in the art.
- a gas chromatographic method may be mentioned.
- the hydrocarbon oil of the lubricating composition comprises a content by weight of isoparaffins ranging from 90 to 100%, a content by weight of normal paraffins ranging from 0 to 10%, a content by weight of naphthenes less than or equal to 1% and a content by weight of aromatic compounds less than or equal to 500 ppm.
- the hydrocarbon-based oil comprises a content by weight ranging from 95 to 100% of isoparaffins, from 0 to 5% of normal paraffins, a content by weight of naphthenes of less than or equal to 0.5% and a content by weight of compounds.
- the hydrocarbon oil comprises a content by weight ranging from 95 to 100% of isoparaffins, from 0 to 5% of normal paraffins and a content by weight of aromatic compounds less than or equal to 100 ppm. More preferably, it comprises a content by weight ranging from 98% to 100% of isoparaffins, from 0 to 2% of normal paraffins, a content by weight of naphthenes of less than or equal to 100 ppm and a content by weight of aromatic compounds of less than or equal to equal to 100 ppm.
- the hydrocarbon oil used in the lubricant composition according to the invention also preferably has an extremely low content of sulfur compounds, typically less than or equal to 5 ppm, preferably less than or equal to 3 ppm and more preferably less than or equal to at 0.5 ppm at a level too low to be detected by conventional low-sulfur analyzers.
- the hydrocarbon oil used in the lubricating composition according to the invention also preferably has a flash point greater than or equal to 110 ° C., preferably greater than or equal to 120 ° C. and more preferably greater than or equal to 140 ° C. according to the invention.
- EN ISO 2719 standard A high flash point, typically greater than 110 ° C, which makes it possible, among other things, to overcome the safety problems during storage and transport by avoiding a too sensitive flammability of the hydrocarbon oil.
- the hydrocarbon oil also preferably has a vapor pressure at 20 ° C of less than or equal to 0.01 kPa.
- the hydrocarbon oil used in the lubricating composition according to the invention also preferably has a flash point of greater than or equal to 110 ° C. according to EN ISO 2719 and a vapor pressure of 20 ° C. less than or equal to 0.01 kPa.
- the hydrocarbon oil has a flash point greater than or equal to 120 ° C. and a vapor pressure at 20 ° C. of less than or equal to 0.01 kPa. More preferably, it has a flash point greater than or equal to 140 ° C and a vapor pressure at 20 ° C of less than or equal to 0.01 kPa.
- the hydrocarbon oil used in the lubricant composition according to the invention has boiling temperatures, a flash point and a vapor pressure to overcome the problems of flammability, odor and volatility.
- the hydrocarbon oil of the lubricating composition according to the invention also preferably has a kinematic viscosity at 40 ° C. of less than or equal to 5 cSt, preferentially less than or equal to 4.5 cSt and more preferably less than or equal to 4 cSt according to the EN ISO 3104 standard.
- hydrocarbon oil compositions can be obtained as follows.
- the hydrocarbon oil according to the invention is a hydrocarbon fraction which is derived from the conversion of biomass.
- outcome of the biomass conversion is meant a hydrocarbon fraction produced from raw materials of biological origin.
- the hydrocarbon fraction of biological origin is obtained by a process comprising hydrodeoxygenation (HDO) and isomerization (ISO) steps.
- the hydrodeoxygenation (HDO) step leads to the decomposition of the structures of the biological esters or triglyceride constituents, the elimination of oxygenated, phosphorus and sulfur compounds and the hydrogenation of the olefinic bonds.
- the product resulting from the hydrodeoxygenation reaction is then isomerized.
- a fractionation step may preferably follow the hydrodeoxygenation and isomerization steps.
- the fractions of interest are then subjected to hydrotreatment and then distillation stages in order to obtain the specifications of the desired hydrocarbon oil according to the invention.
- This HDO / ISO process is carried out on a raw biological feedstock, also called biomass or raw material of biological origin, selected from the group consisting of vegetable oils, animal fats, fish oils and their mixture.
- Raw materials of suitable biological origin are, for example, rapeseed oil, canola oil, tall oil, sunflower oil, soybean oil, hemp oil, olive oil, flaxseed oil, mustard oil, palm oil, peanut oil, castor oil, coconut oil, animal fats such as tallow, recycled dietary fats, raw materials from genetic engineering, and biological raw materials produced from microorganisms such as algae and bacteria. Condensation products, esters or other derivatives obtained from raw biological materials can also serve as raw materials.
- the raw material of biological origin is a triglyceride ester or derivative.
- This material is first subjected to a hydrodeoxygenation (HDO) stage to decompose the structure of the constituent esters or triglycerides and to eliminate the oxygenated, phosphorus and sulfur compounds concomitantly with the hydrogenation of the olefinic bonds.
- HDO hydrodeoxygenation
- This hydrodeoxygenation (HDO) stage of the raw material of biological origin is followed by isomerization of the product thus obtained leading to the branching of the hydrocarbon chain and to an improvement of the properties of paraffin at low temperature.
- the hydrogen and the raw material of biological origin are passed on a catalytic hydrodeoxygenation bed simultaneously, in the same direction or against the current.
- the pressure and the temperature are respectively between 20 and 150 bars and between 200 and 500 ° C.
- Conventional and known hydrodeoxygenation catalysts are used during this step.
- the raw material of biological origin can be subjected, before the HDO step, to a pre-hydrogenation under mild conditions to avoid the secondary reactions of the double bonds.
- the product resulting from the hydrodeoxygenation reaction is then subjected to an isomerization step (ISO) in which the hydrogen and the said product, and optionally a mixture of n-paraffins, are passed on isomerization catalytic beds simultaneously. , in the same direction or against the current.
- ISO isomerization step
- the pressure and the temperature are respectively between 20 and 150 bar and between 200 and 500 ° C.
- Conventional and known isomerization catalysts are used during this step.
- Additional secondary methods can also be implemented (such as intermediate mixtures, trapping or the like).
- the product resulting from the HDO / ISO steps can optionally be split in order to obtain the cuts of interest.
- the application WO 2014/033762 describes a process comprising a pre-hydrogenation stage, a hydrodeoxygenation (HDO) stage and an isomerization step operated against the current.
- the patent application EP 1728844 describes a process for producing hydrocarbon compounds from a mixture of compounds of plant and animal origin. This method comprises a step of pretreatment of the mixture for removing contaminants, such as alkali metal salts, followed by a hydrodeoxygenation (HDO) step and an isomerization step.
- HDO hydrodeoxygenation
- the patent application EP 2084245 describes a process for producing a hydrocarbon mixture which can be used as a gas oil or in a gas oil composition by hydrodeoxygenation of a mixture of biological origin containing fatty acid esters optionally in admixture with free fatty acids, for example vegetable oils such as sunflower oil, rapeseed oil, canola oil, palm oil or pine oil, followed by hydroisomerization on specific catalysts.
- Patent application EP 2368967 describes such a process and the product obtained by this process.
- the application WO 2016/185046 describes a process for obtaining a hydrocarbon oil used according to the invention, in which the hydrocarbon oil is obtained by a catalytic hydrogenation process at a temperature of 80 to 180 ° C. and at a temperature of pressure of 50 to 160 bars of a deoxygenated and isomerized biological charge.
- the raw material of biological origin contains less than 15 ppm of sulfur, preferably less than 8 ppm, preferably less than 5 ppm and more preferably less than 1 ppm according to EN ISO 20846.
- the raw material of origin biobased used as a feed does not include sulfur.
- a pre-fractionation step can take place prior to the hydrotreating step.
- a narrower section at the hydrogenation unit inlet makes it possible to obtain a narrow section at the unit outlet.
- the boiling points of pre-fractionated slices are between 220 and 330 ° C. whereas the sections which have not been pre-fractionated typically have boiling points of between 150 and 360 ° C.
- the deoxygenated and isomerized feedstock from the HDO / ISO process is then hydrogenated.
- the hydrogen used in the hydrogenation unit is typically highly purified hydrogen.
- highly purified is meant hydrogen of purity for example greater than 99%, although other grades can also be used.
- the hydrogenation step is carried out by means of catalysts.
- Typical hydrogenation catalysts may be either bulk or supported and may include the following metals: nickel, platinum, palladium, rhenium, rhodium, nickel tungstate, nickel-molybdenum, molybdenum, cobalt-molybdenum.
- the supports may be silica, alumina, silica-alumina or zeolites.
- a preferred catalyst is an alumina supported nickel catalyst whose specific surface area varies between 100 and 200 m 2 / g of catalyst or a nickel-based bulk catalyst.
- the hydrogenation conditions are typically as follows:
- Pressure 50 to 160 bar, preferably 80 to 150 bar and more preferably 90 to 120 bar;
- Temperature 80 to 180 ° C, preferably 120 to 160 ° C and more preferably 150 to 160 ° C;
- VVH Hourly volume velocity
- Rate of treatment with hydrogen adapted to the conditions mentioned above and up to 200 Nm 3 / tons of load to be treated.
- the temperature in the reactors is typically between 150 and 160 ° C with a pressure of about 100 bar while the hourly space velocity is about 0.6 hr 1 with a treatment rate adapted to the quality of the charge to be processed and parameters of the first hydrogenation reactor.
- Hydrogenation can take place in one or more reactors in series.
- the reactors may comprise one or more catalytic beds.
- Catalytic beds are generally fixed catalytic beds.
- the hydrogenation process is preferably carried out in two or three reactors, preferably in three reactors and is more preferably in three reactors in series.
- the first reactor allows the trapping of sulfur compounds and the hydrogenation of essentially all unsaturated compounds and up to about 90% of the aromatic compounds.
- the product from the first reactor contains substantially no sulfur compounds.
- the hydrogenation of aromatics is continued and up to 99% of the aromatics are thus hydrogenated.
- the third stage in the third reactor is a finishing stage making it possible to obtain aromatic contents of less than or equal to 500 ppm, preferably less than or equal to 300 ppm, preferentially less than or equal to 100 ppm, more preferably less than or equal to 50 ppm, and ideally less than or equal to 20 ppm even in the case of high-boiling products for example greater than 300 ° C.
- a reactor that has two or three or more catalyst beds.
- the catalysts may be present in varying amounts which may be different or substantially equal in each reactor; for three reactors, the amounts by weight can for example be 0.05-0.5 / 0.10-0.70 / 0.25-0.85, preferably 0.07-0.25 / 0 , 15-0.35 / 0.4-0.78 and more preferably 0.10-0.20 / 0.20-0.32 / 0.48-0.70. It is also possible to use one or two hydrogenation reactors instead of three.
- the first reactor is composed of twin reactors implemented alternately. This mode of operability allows in particular easy loading and unloading of the catalysts: when the first reactor comprises the saturated catalyst first (substantially all the sulfur is trapped on and / or in the catalyst), this catalyst must be changed often.
- a single reactor can also be used in which two, three or more catalyst beds are installed.
- the product resulting from the process and / or the separated gases is (are) at least partially recycled (s) in the feed system of the hydrogenation reactors.
- This dilution helps to maintain the exothermicity of the reaction within controlled limits, particularly in the first stage. Recycling also allows heat exchange before the reaction and also better control of the temperature.
- the effluent from the hydrogenation unit contains mainly the hydrogenated product and hydrogen. Flash separators are used to separate the effluents in the gas phase, mainly the residual hydrogen, and in the liquid phase, mainly the hydrogenated hydrocarbon cuts.
- the process can be carried out using three flash separators, one high pressure, one intermediate pressure and one low pressure very close to atmospheric pressure.
- the hydrogen gas that is collected at the top of the flash separators can be recycled to the feed system of the hydrogenation unit or at different levels in the hydrogenation units between the reactors.
- the final product is separated at atmospheric pressure. It then directly feeds a vacuum fractionation unit.
- the fractionation will be at a pressure of between 10 and 50 mbar and more preferably at about 30 mbar.
- the fractionation can be carried out in such a way that it is possible to simultaneously remove various hydrocarbon fluids from the fractionation column and that their boiling temperature can be predetermined.
- the hydrogenation reactors, the separators and the fractionation unit can therefore be directly connected without the need to use intermediate tanks. This continuity between the hydrogenation and the fractionation allows optimized thermal integration associated with a reduction of the number of devices and a saving of energy.
- the hydrocarbon oil used in the lubricant composition of the invention is advantageously a hydrocarbon fraction having a distillation range ID (in ° C) ranging from 230 ° C. to 340 ° C., preferably from 235 ° C. to 330 ° C. C and more preferably from 240 ° C to 325 ° C, even more preferably from 290 to 325 ° C, measured according to ASTM D86.
- the difference between the final boiling point and the initial boiling point is less than or equal to 80 ° C, preferably less than or equal to 70 ° C, more preferably less than or equal to 60 ° C and advantageously between 40 and 50 ° C.
- the hydrocarbon oil may comprise one or more distillation interval fractions within the ranges described above.
- the hydrocarbon oil used in the lubricating composition of the invention is completely saturated.
- the components of the hydrocarbon oil are chosen from isoparaffins comprising 12 to 30 carbon atoms, preferably 13 to 19 carbon atoms and more preferably 14 to 18 carbon atoms.
- the lubricating composition according to the invention advantageously comprises a content by weight of isohexadecane less than or equal to 50%.
- the hydrocarbon oil of the lubricating composition according to the invention is ideally derived from the treatment of raw materials of biological origin.
- the carbon of a biomaterial comes from the photosynthesis of plants and therefore atmospheric CO2.
- the degradation (by degradation, one also understands the combustion / the incineration at the end of life) of these materials in CO2 thus does not contribute to the warming because there is no increase of the carbon emitted in the atmosphere.
- the CO2 balance of biomaterials is therefore much better and contributes to reducing the carbon footprint of the products obtained (only energy for manufacturing must be taken into account).
- a material of fossil origin also degraded in CO2 will contribute to the increase of the CO2 level and therefore to global warming.
- the hydrocarbon oil used according to the invention will therefore have a carbon footprint that will be better than that of the compounds obtained from a fossil source.
- bio-carbon indicates that the carbon is of natural origin and comes from a biomaterial, as indicated below.
- the bio-carbon content and the biomaterial content are expressions indicating the same value.
- a material of renewable origin or biomaterial is a organic material in which carbon is derived from recently fixed CO2 (on a human scale) by photosynthesis from the atmosphere.
- a biomaterial (100% natural carbon) has a 14 C / 12 C isotope ratio greater than 10 ⁇ 12 , typically about 1.2 x 10 ⁇ 12 , while a fossil material has a zero ratio.
- the 14 C isotopic is formed in the atmosphere and is then integrated by photosynthesis, according to a time scale of a few tens of years maximum. The half-life of 14 C is 5730 years.
- the materials resulting from photosynthesis namely plants in general, necessarily have a maximum content of 14 C isotope.
- ASTM D 6866 relates to the "Determination of Biological Content of Natural Range Materials Using Radiometric and Isotopic Mass Spectrometry Analysis"
- ASTM D 7026 relates to sampling and reporting of results for the determination of the content of biological substances by carbon isotope analysis ".
- the second standard mentions the first in its first paragraph.
- the first standard describes a test of the 14 C / 12 C ratio of a sample and compares it with the 14 C / 12 C ratio of a reference sample of 100% renewable origin, to give a relative percentage of C of renewable origin in the sample.
- the standard is based on the same concepts as dating with 14 C, but without applying the dating equations.
- the calculated ratio is indicated as "pMC" (percent Modem Carbon). If the material to be analyzed is a mixture of biomaterials and fossil materials (without radioactive isotope), the value of pMC obtained is directly correlated to the amount of biomaterial present in the sample.
- the reference value used for the dating of 14 C is a value dating from the 1950s.
- the year 1950 was selected because of the existence of nuclear tests in the atmosphere that introduced large amounts of isotopes into the atmosphere. the atmosphere after that date.
- the reference 1950 corresponds to a pMC value of 100. Based on the thermonuclear tests, the current value to be retained is approximately 107.5 (which corresponds to a correction factor of 0.93).
- the radioactive carbon signature of a current plant is therefore 107.5.
- a signature of 54 pMC and 99 pMC therefore corresponds to a quantity of biomaterial in the sample of 50% and 93% respectively.
- the hydrocarbon oil of the lubricating composition according to the invention has a biomaterial content of at least 90%. This content is advantageously higher, in particular greater than or equal to 95%, preferably greater than or equal to 98% and advantageously equal to 100%. According to one embodiment, the 14 C / 12 C isotopic ratio of the hydrocarbon oil used in the invention is between 1.15 and 1.2 ⁇ 10 -12 .
- the hydrocarbon oil of the lubricating composition according to the invention has a particularly good biodegradability.
- Biodegradation of an organic chemical refers to reducing the complexity of chemical compounds through the metabolic activity of microorganisms. Under aerobic conditions, micro-organisms transform organic substances into carbon dioxide, water and biomass.
- the OECD 306 method is used to evaluate the biodegradability of individual substances in seawater.
- the hydrocarbon oil has a biodegradability at 28 days of at least 60%, preferably at least 60%. less than 70%, more preferably at least 75% and advantageously at least 80%.
- the OECD 306 method is as follows:
- the closed bottle method involves dissolving a predetermined amount of the test substance in a control medium at a concentration of typically 2-10 mg / L, one or more concentrations being used.
- the solution is kept in a closed bottle filled with light at a constant temperature in the range 15-20 ° C.
- the degradation is monitored by oxygen analysis over a period of 28 days.
- 24 bottles are used (8 for the test substance, 8 for the reference compound and 8 for the nutrients). All analyzes are done on several bottles. At least 4 dissolved oxygen determinations are made (day 0, 5, 15 and 20) using a chemical or electrochemical method.
- the hydrocarbon oil comprises: a content by weight of isoparaffins ranging from 95 to 100% and preferably from 98% to 100% relative to the total weight of the hydrocarbon oil, and
- a content by weight of normal paraffins of less than or equal to 5% and preferably less than or equal to 2% relative to the total weight of the hydrocarbon oil;
- a content by weight of naphthenic compounds less than or equal to 0.5% and preferably less than or equal to 100 ppm relative to the total weight of the hydrocarbon oil;
- a content by weight of aromatic compounds less than or equal to 300 ppm, preferentially less than or equal to 100 ppm, more preferably lower or equal to 50 ppm and advantageously less than or equal to 20 ppm, relative to the total weight of the hydrocarbon oil.
- the hydrocarbon oil comprises:
- a content by weight of isoparaffins ranging from 98% to 100% relative to the total weight of the hydrocarbon oil
- a kinematic viscosity at 40 ° C. of less than or equal to 5 cSt, preferably less than or equal to 4.5 cSt and preferentially less than or equal to 4 cst
- the lubricating composition used according to the invention comprises at least 0.01% by weight, preferably from 0.01 to 3%, preferably from 0.05 to 3% by weight, more preferably from 0.1 to 2%, 5% by weight, even more preferably from 0.5 to 2% by weight, of additive (s) chosen (s) from anti-wear additives, extreme pressure additives, anti-corrosion additives, metal deactivating additives anti-foam additives, antioxidants selected from phenolic antioxidants, and mixtures thereof, based on the total weight of the lubricant composition.
- additive chosen (s) from anti-wear additives, extreme pressure additives, anti-corrosion additives, metal deactivating additives anti-foam additives, antioxidants selected from phenolic antioxidants, and mixtures thereof, based on the total weight of the lubricant composition.
- the anti-wear additives, the extreme pressure additives, the anti-corrosion additives, the metal deactivating additives, the anti-foam additives, the antioxidants are different from the hydrocarbon oil defined above, plus particularly, said additives are compounds which are distinguished from the hydrocarbon oil, for example by the chemical nature.
- the additive (s) are (are) selected from anti-wear additives, extreme pressure additives, anti-corrosion additives, metal deactivating additives, anti-foam additives, and their mixtures, based on the total weight of the lubricant composition.
- the additives that can be used in the compositions according to the invention are Lubricant Substance Classification list additives or additives that make it possible to obtain a biodegradable formula that meets the Ecolabel standard or the American EAL specifications.
- Anti-wear additives and extreme pressure additives protect the friction surfaces by forming a protective film adsorbed on these surfaces.
- anti-wear additives There is a wide variety of anti-wear additives. In a preferred manner, certain additives are both anti-wear and extreme pressure additives.
- the anti-wear and extreme pressure additives are chosen from phosphorus-free or phos-sulfur-free additives such as for example phosphates, phosphorothionates, phosphonates, dithiophosphates and thio phosphates such as dialkyl dithiophosphates.
- anti-wear additive mention may also be made of triaryl thiophosphates, carbamates and thiocarbamates.
- certain additives are both anti-wear, extreme pressure and anti-corrosion additives.
- anti-corrosion additives that can be used in the lubricant composition according to the invention, mention may be made of the N-acyl sarcosine compounds.
- Metal deactivating additives include tolutriazole, tolutriazole derivatives or dimercaptothiadiazoles.
- the metal deactivator additive makes it possible, in particular, to neutralize the catalytic effects of metals, such as copper and iron.
- tolutriazole derivative is meant a substituted tolutriazole compound, preferably one or more alkyl groups optionally comprising one or more heteroatoms.
- anti-foam additives that can be used in the lubricant composition according to the invention, mention may be made of silicone compounds and polyacrylate compounds.
- the antioxidant additive generally serves to retard the degradation of the lubricating composition in service.
- Antioxidant additives act in particular as radical inhibitors or destroyers of hydro peroxides.
- the antioxidant additives used in the invention are chosen from phenolic antioxidants.
- the phenolic antioxidant additives may especially be chosen from sterically hindered phenols, sterically hindered phenol esters and sterically hindered phenols comprising a thioether bridge.
- the sterically hindered phenols are chosen from compounds comprising a phenol group in which at least one vicinal carbon of the carbon carrying the alcohol function is substituted by at least one C 1 -C 10 alkyl group, preferably a C 1 -C 4 alkyl group.
- C6 preferably alkyl C 4, preferably by tert-butyl group.
- the lubricant composition used according to the invention comprises, as additives, at least one additive chosen from antiwear additives, extreme pressure additives, anti-corrosion additives, additives and metal deactivators, and mixtures thereof.
- the lubricating composition of the present invention may also comprise at least one additional viscosity index improving polymer.
- additional viscosity index improving polymers there may be mentioned polymeric esters, homopolymers or copolymers, hydrogenated or non-hydrogenated, styrene, butadiene and isoprene, polymethacrylates (PMA).
- the lubricating composition comprises at least 0.01% by weight, relative to the total weight of the lubricating composition, of at least one additive chosen from:
- anti-wear additives chosen from triaryl thiophosphates, carbamates and thiocarbamates,
- extreme-pressure additives chosen from phosphate-free or phos-sulfur-free additives, phosphorothionates, phosphonates, dithiophosphates and thio phosphates,
- metal deactivating additives chosen from tolutriazole, tolutriazole derivatives or dimercaptothiadiazoles,
- antioxidants chosen from phenolic antioxidants,
- anti-foam additives selected from silicone compounds and polyacrylate compounds, and mixtures thereof.
- the lubricating composition comprises at least
- anti-wear additives chosen from triaryl thiophosphates, carbamates and thiocarbamates,
- extreme-pressure additives chosen from phosphorus-free or phos-sulfur-free additives, phosphorothionates, phosphonates, dithiophosphates and thio phosphates,
- metal deactivating additives selected from tolutriazole, tolutriazole derivatives or dimercaptothiadiazoles,
- the lubricating composition comprises from 0.01 to 3% by weight, relative to the total weight of the lubricating composition, of at least one additive chosen from:
- anti-wear additives chosen from triaryl thiophosphates, carbamates and thiocarbamates,
- extreme-pressure additives chosen from phosphate-free or phos-sulfur-free additives, phosphorothionates, phosphonates, dithiophosphates and thio phosphates,
- metal deactivating additives selected from tolutriazole, tolutriazole derivatives or dimercaptothiadiazoles,
- the lubricating composition comprises from 0.01 to 3% by weight, relative to the total weight of the lubricating composition, of at least one additive chosen from:
- anti-wear additives chosen from triaryl thiophosphates, carbamates and thiocarbamates,
- extreme-pressure additives chosen from phosphate-free or phos-sulfur-free additives, phosphorothionates, phosphonates, dithiophosphates and thio phosphates,
- metal deactivating additives selected from tolutriazole, tolutriazole derivatives or dimercaptothiadiazoles,
- the lubricant composition used according to the invention comprises as additives:
- the amine phosphate is chosen from amine alkyl phosphate, in which the alkyl group typically has 1 to 24 carbon atoms, preferably 1 to 16 carbon atoms, or even 1 to 12 carbon atoms. carbon atoms.
- the phenolic antioxidant is preferably chosen from sterically hindered phenols chosen from compounds comprising a phenol group in which at least one vicinal carbon of the carbon carrying the alcohol function is substituted with at least one C 1 -alkyl group. -C 1 0, preferably a C 1 -C 6 alkyl group, preferably a C 4 alkyl group, preferably by the ter-butyl group.
- the phenol is selected from phenolic compounds with two vicinal carbons of the carbon bearing the alcohol function are substituted by at least one alkyl group in C 1 -C 0, preferably an alkyl group C 1 -C 6, preferably a C 4 alkyl group, preferably by the tert-butyl group, and another carbon is substituted by an alkyl ester group.
- the composition according to the invention is biodegradable, does not exhibit bioaccumulation in organisms and does not present any toxicity for the environment, more particularly the aquatic environment, and meets the European Ecolabel label and the American EAL specifications. Furthermore, the composition according to the invention meets the various characteristic tests of gear lubricating compositions.
- the lubricating composition comprises: from 97 to 99.99% by weight of hydrocarbon oil comprising at least 95% by weight of isoparaffins, less than 2% by weight of normal paraffins and a carbon content of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, and
- the lubricating composition comprises: from 97 to 99.9% by weight of hydrocarbon oil comprising at least 95% by weight of isoparaffins, less than 2% by weight of normal paraffins and a carbon content of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, and
- the lubricating composition comprises from 97 to 99.9% by weight, relative to the total weight of the lubricating composition, of a hydrocarbon oil which comprises at least 98% by weight of isoparaffins, less than 2% by weight of normal paraffins and a content of carbon of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, said hydrocarbon oil having a kinematic viscosity at 40 ° C. of less than or equal to 5 cSt,
- anti-wear additives chosen from triaryl thiophosphates, carbamates and thiocarbamates,
- extreme-pressure additives chosen from phosphate-free or phos-sulfur-free additives such as phosphates, phosphorothionates, phosphonates, dithiophosphates and thiophosphates such as dialkyl dithiophosphates, o the metal deactivating additives chosen from tolutriazole, tolutriazole derivatives or dimercaptothiadiazoles,
- antioxidants chosen from phenolic antioxidants
- the lubricating composition comprises: from 97 to 99.9% by weight, relative to the total weight of the lubricating composition, of a hydrocarbon oil which comprises at least 98% by weight of isoparaffins, less than 2% by weight of normal paraffins and a carbon content of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, said hydrocarbon oil having a lower kinematic viscosity at 40 ° C .; or equal to 5 cSt,
- anti-wear additives chosen from triaryl thiophosphates, carbamates and thiocarbamates,
- extreme-pressure additives chosen from phosphate-free or phos-sulfur-free additives such as phosphates, phosphorothionates, phosphonates, dithiophosphates and thiophosphates such as dialkyl dithiophosphates, o the metal deactivating additives chosen from tolutriazole, tolutriazole derivatives or dimercaptothiadiazoles,
- the lubricating composition used according to the invention may be prepared according to any method well known to those skilled in the art for formulating a lubricating composition, for example by simply mixing the ingredients, preferably at room temperature.
- the hydrocarbon oil is preheated before mixing with the additives.
- composition defined in the present invention is used as a gear lubricant, especially in the fields of industry and marine and equipment having gears that may be in contact with the environment (water, air, etc.) or an individual .
- the lubricant composition is used on industrial gears, in particular on industrial gears on off-shore installations.
- Offshore facilities include offshore wind turbines.
- the lubricant composition is implemented on gears intended to be in contact with water, preferably seawater.
- the lubricating composition is used at temperatures ranging from 50 to 400 ° C., preferably ranging from 100 to 300 ° C.
- the invention also covers a gear lubrication process, comprising applying a lubricating composition to gears, said lubricating composition comprising at least 97% by weight, based on the total weight of the lubricating composition, of a lubricating composition.
- hydrocarbon oil which comprises a content by weight of isoparaffins ranging from 90 to 100%, a content by weight of normal paraffins ranging from 0 to 10% and a carbon content of biological origin greater than or equal to 90% by weight total of the hydrocarbon oil, and comprising at least 0.01% by weight, relative to the total weight of the lubricating composition of at least one additive chosen from anti-wear additives, extreme pressure additives, anti-corrosion additives metal deactivating additives, anti-foam additives, antioxidant additives selected from phenolic antioxidants, and mixtures thereof.
- the lubricating composition used in the lubrication process of the invention has one or more of the characteristics detailed above in the context of the use according to the invention.
- the lubricant composition is implemented on industrial gears, in particular on industrial gears on off-shore installations.
- Offshore facilities include offshore wind turbines.
- the lubricating composition is implemented on gears intended to be in contact with seawater.
- the use temperature of the lubricant composition ranges from 50 to 400 ° C, preferably from 100 to 300 ° C.
- the invention describes a gear coated with a lubricating composition
- a lubricating composition comprising at least 97% by weight, relative to the total weight of the lubricating composition, of a hydrocarbon oil which comprises a content by weight of isoparaffins ranging from 90 to 100% a content by weight of normal paraffins ranging from 0 to 10% and a carbon content of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, and comprising at least 0.01% by weight , based on the total weight of the lubricant composition of at least one additive selected from antiwear additives, extreme pressure additives, anticorrosive additives, metal deactivating additives, anti-foam additives, antioxidant additives, and their mixtures.
- the lubricating composition implemented in the gear according to the invention has one or more of the characteristics detailed above in the context of the lubricant composition according to the invention and / or the use according to the invention. 'invention.
- the gear is an industrial gear, in particular an industrial gear for offshore installations.
- Offshore facilities include offshore wind turbines.
- the gearing is intended to be in contact with seawater.
- the invention relates secondly to a gear lubricating composition comprising:
- At least 97% by weight of at least one hydrocarbon oil which comprises a content by weight of isoparaffins ranging from 90 to 100%, a weight content of paraffins from 0 to 10% and a carbon content of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, and at least 0.01% by weight of at least one additive chosen from anti-wear additives, extreme pressure additives, anti-corrosion additives, metal deactivating additives, anti-foam additives, antioxidants chosen from phenolic antioxidants, and mixtures thereof,
- said additive is an antioxidant, that is present in an amount of at least 0.015% by weight,
- the lubricating gear composition according to the invention has one or more of the features detailed above in the context of the use according to the invention, provided that if the composition comprises an antioxidant, it is present in a amount of at least 0.015% by weight, preferably at least 0.05% by weight, preferably at least 0.1% by weight, relative to the total weight of the lubricating composition.
- the lubricating composition comprises: from 97 to 99.95% by weight, preferably from 97.5 to 99.9% by weight, preferably from 98 to 99.5% by weight , based on the total weight of the lubricating composition, of hydrocarbon oil, and
- lubricating composition from 0.05 to 3% by weight, preferably from 0.1 to 2.5% by weight, preferably from 0.5 to 2% by weight, relative to the total weight of the lubricating composition, of at least one additive selected from anti-wear additives, extreme pressure additives, anti-corrosion additives, metal deactivating additives, anti-foam additives, antioxidants, and mixtures thereof,
- the composition comprises an antioxidant, it is present in an amount of at least 0.015% by weight, preferably at least 0.05% by weight, preferably at least 0.1% by weight, weight, relative to the total weight of the lubricating composition.
- the lubricating gear composition comprises: from 97 to 99.9% by weight, relative to the total weight of the lubricating composition, of a hydrocarbon oil which comprises at least 98% by weight of isoparaffins, less than 2% by weight of normal paraffins and a content of carbon of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, said hydrocarbon oil having a kinematic viscosity at 40 ° C. of less than or equal to 5 cSt,
- anti-wear additives chosen from triaryl thiophosphates, carbamates and thiocarbamates,
- extreme-pressure additives chosen from phosphate-free or phosphosulfur-free additives such as phosphates, phosphorothionates, phosphonates, dithiophosphates and thiophosphates such as dialkyl dithiophosphates,
- metal deactivating additives chosen from tolutriazole, tolutriazole derivatives or dimercaptothiadiazoles,
- antioxidants chosen from phenolic antioxidants
- a hydrocarbon oil is prepared according to a process as described in the present invention.
- Table 1 groups the physicochemical properties of the hydrocarbon oil.
- Table 2 groups comparative characteristics of oils A to E.
- Table 3 clearly shows that the hydrocarbon oil defined in the present invention has a much better oxidation stability than the comparative oils, which correspond to lubricating oils used in the prior art.
- the hydrocarbon oil defined in the present invention can therefore be used with very few additives, in particular with very few anti-oxidant additives, or even no anti-oxidant additives.
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Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1760558A FR3073228B1 (fr) | 2017-11-09 | 2017-11-09 | Composition lubrifiante pour engrenage |
| PCT/FR2018/052780 WO2019092379A2 (fr) | 2017-11-09 | 2018-11-08 | Composition lubrifiante pour engrenage |
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| Publication Number | Publication Date |
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| EP3707226A2 true EP3707226A2 (fr) | 2020-09-16 |
| EP3707226B1 EP3707226B1 (fr) | 2024-03-13 |
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| EP18875007.9A Active EP3707226B1 (fr) | 2017-11-09 | 2018-11-08 | Composition lubrifiante pour engrenage |
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| Country | Link |
|---|---|
| US (1) | US11414619B2 (fr) |
| EP (1) | EP3707226B1 (fr) |
| CN (2) | CN116083135A (fr) |
| ES (1) | ES2983759T3 (fr) |
| FR (1) | FR3073228B1 (fr) |
| WO (1) | WO2019092379A2 (fr) |
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| FR3073228B1 (fr) | 2017-11-09 | 2020-10-23 | Total Marketing Services | Composition lubrifiante pour engrenage |
| JP7304229B2 (ja) * | 2019-07-18 | 2023-07-06 | 出光興産株式会社 | 潤滑油組成物 |
| FI20195647A1 (en) | 2019-07-22 | 2021-01-23 | Neste Oyj | Paraffinic products, a method for producing paraffinic products and a use of paraffinic products |
| CN112300853A (zh) * | 2019-07-31 | 2021-02-02 | 上海易到润滑油有限公司 | 一种环保型齿轮润滑油及其制备方法 |
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| FI131404B1 (en) * | 2023-05-31 | 2025-04-04 | Neste Oyj | Multi-purpose oil and method for producing the same |
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| EP3095839A1 (fr) | 2015-05-20 | 2016-11-23 | Total Marketing Services | Procédé pour la production de fluides hydrocarbonés biodégradables par hydrogénation |
| EP3095838A1 (fr) | 2015-05-20 | 2016-11-23 | Total Marketing Services | Procédé pour la production de fluides hydrocarbonés biodégradables |
| EP3143981A1 (fr) | 2015-09-16 | 2017-03-22 | Total Marketing Services | Composition émolliente biosourcée |
| CN105907449A (zh) * | 2016-05-11 | 2016-08-31 | 乌鲁木齐市隆成实业有限公司 | 生物降解的工业齿轮油及其制备方法 |
| FI129869B (en) | 2016-05-17 | 2022-10-14 | Neste Oyj | A composition comprising paraffins and a method for its preparation |
| EP3315590A1 (fr) | 2016-10-27 | 2018-05-02 | Total Marketing Services | Utilisation de fluides d'hydrocarbure dans des véhicules électriques |
| CN106833839A (zh) * | 2016-12-30 | 2017-06-13 | 上海禾泰特种润滑科技股份有限公司 | 生物可降解齿轮油组合物及其制备方法 |
| EP3352177B1 (fr) | 2017-01-24 | 2021-06-09 | Avantherm AB | Huile isolante biogène à faible viscosité |
| FR3073228B1 (fr) | 2017-11-09 | 2020-10-23 | Total Marketing Services | Composition lubrifiante pour engrenage |
| FI20195647A1 (en) | 2019-07-22 | 2021-01-23 | Neste Oyj | Paraffinic products, a method for producing paraffinic products and a use of paraffinic products |
-
2017
- 2017-11-09 FR FR1760558A patent/FR3073228B1/fr active Active
-
2018
- 2018-11-08 ES ES18875007T patent/ES2983759T3/es active Active
- 2018-11-08 WO PCT/FR2018/052780 patent/WO2019092379A2/fr not_active Ceased
- 2018-11-08 US US16/761,605 patent/US11414619B2/en active Active
- 2018-11-08 CN CN202310147602.9A patent/CN116083135A/zh active Pending
- 2018-11-08 CN CN201880071600.3A patent/CN111295436B/zh active Active
- 2018-11-08 EP EP18875007.9A patent/EP3707226B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US11414619B2 (en) | 2022-08-16 |
| FR3073228A1 (fr) | 2019-05-10 |
| CN116083135A (zh) | 2023-05-09 |
| ES2983759T3 (es) | 2024-10-24 |
| CN111295436A (zh) | 2020-06-16 |
| FR3073228B1 (fr) | 2020-10-23 |
| WO2019092379A2 (fr) | 2019-05-16 |
| CN111295436B (zh) | 2023-03-14 |
| US20200270544A1 (en) | 2020-08-27 |
| WO2019092379A3 (fr) | 2019-09-12 |
| EP3707226B1 (fr) | 2024-03-13 |
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