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WO2017115703A1 - Composition d'huile lubrifiante - Google Patents

Composition d'huile lubrifiante Download PDF

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Publication number
WO2017115703A1
WO2017115703A1 PCT/JP2016/088164 JP2016088164W WO2017115703A1 WO 2017115703 A1 WO2017115703 A1 WO 2017115703A1 JP 2016088164 W JP2016088164 W JP 2016088164W WO 2017115703 A1 WO2017115703 A1 WO 2017115703A1
Authority
WO
WIPO (PCT)
Prior art keywords
lubricating oil
copper
oil composition
mass
group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/088164
Other languages
English (en)
Japanese (ja)
Inventor
八木下　和宏
吉田　俊男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
JX Nippon Oil and Energy Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JX Nippon Oil and Energy Corp filed Critical JX Nippon Oil and Energy Corp
Priority to CN201680069819.0A priority Critical patent/CN108291173A/zh
Publication of WO2017115703A1 publication Critical patent/WO2017115703A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • C10M133/12—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a lubricating oil composition.
  • Lubricating oil is used in various applications such as engine oil, drive system lubricating oil, turbine oil, hydraulic fluid, and grease. Lubricating oils are required to be resistant to oxidation (antioxidant properties).
  • Patent Documents 1 to 4 disclose lubricating oil compositions to which a combination of an oil-soluble copper-containing compound and a sulfur-containing metal complex is added in order to improve antioxidant properties.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a lubricating oil composition capable of maintaining sufficient antioxidant properties for a long period of time.
  • the present invention comprises a lubricating base oil, an alkylated diphenylamine, and at least one copper-containing compound selected from the group consisting of copper carboxylate and copper dithiocarbamate, and a copper Provides a lubricating oil composition having a content of more than 0 ppm by mass and not more than 30 ppm by mass based on the total amount of the lubricating oil composition.
  • the sulfur content is preferably 100 ppm by mass or less in terms of sulfur atom based on the total amount of the lubricating oil composition.
  • a lubricating oil composition capable of maintaining sufficient antioxidant properties for a long period of time is provided. Furthermore, the lubricating oil composition of the present invention is also excellent in terms of suppressing sludge formation.
  • the lubricating oil composition according to the embodiment of the present invention contains a lubricating base oil, an alkylated diphenylamine, and at least one copper-containing compound selected from the group consisting of copper carboxylate and copper dithiocarbamate.
  • the copper content is more than 0 ppm by mass and 30 ppm by mass or less in terms of copper atoms, based on the total amount of the lubricating oil composition.
  • Lubricating oil base oil is not particularly limited, and those used for ordinary lubricating oil can be used. Examples thereof include mineral oil base oils, synthetic oil base oils, and mixed oils thereof.
  • synthetic oils include polybutene or hydrides thereof; poly- ⁇ -olefins such as 1-octene oligomers and 1-decene oligomers or hydrides thereof; ditridecyl glutarate, di-2-ethylhexyl.
  • Diesters such as adipate, diisodecyl adipate, ditridecyl adipate, di-2-ethylhexyl sebacate; polyol esters such as trimethylolpropane caprylate, trimethylolpropane pelargonate, pentaerythritol-2-ethylhexanoate, pentaerythritol pelargonate
  • An aromatic synthetic oil such as alkylnaphthalene or alkylbenzene, or a mixture thereof.
  • the kinematic viscosity and viscosity index of the lubricating base oil are not particularly limited.
  • the kinematic viscosity of the lubricating base oil at 40 ° C. is 5 to 500 mm 2 / s, 20 to 100 mm 2 / s, or 30 to 60 mm 2 / s. It can be.
  • the kinematic viscosity of the lubricating base oil at 100 ° C. can be 2 to 30 mm 2 / s, 4 to 20 mm 2 / s, or 6 to 10 mm 2 / s.
  • the viscosity index of the lubricating base oil can be 90 or more, 105 or more, or 120 or more.
  • kinematic viscosity at 40 ° C. mean values measured according to JIS K2283: 2000, respectively.
  • the total aromatic content of the lubricating base oil is not particularly limited, but is preferably 20% by mass or less, more preferably 10% by mass or less, and still more preferably 1% by mass or less.
  • the antioxidant properties of the lubricating oil composition tend to be further improved.
  • total aromatic content means an aromatic fraction content measured in accordance with ASTM D2549.
  • This aromatic fraction includes alkylbenzene, alkylnaphthalene, anthracene, phenanthrene, and alkylated products thereof, compounds in which four or more benzene rings are condensed, or heterogeneous compounds such as pyridines, quinolines, phenols, and naphthols.
  • An aromatic compound or the like may be included.
  • alkylated diphenylamine examples include compounds represented by the following general formula (1).
  • R 1 and R 2 each represent hydrogen or an alkyl group, at least one of R 1 and R 2 is an alkyl group, and when both R 1 and R 2 are alkyl groups, 1 and R 2 may be the same or different.
  • alkyl group represented by R 1 and R 2 include methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, and undecyl.
  • a branched alkyl group having 3 to 16 carbon atoms is preferable from the viewpoint of maintaining antioxidant properties for a long period of time, and a branched chain having 3 to 16 carbon atoms derived from an olefin having 3 or 4 carbon atoms or an oligomer thereof.
  • An alkyl group is more preferred.
  • Specific examples of the olefin having 3 or 4 carbon atoms include propylene, 1-butene, 2-butene, and isobutylene. From the viewpoint that the antioxidant property at a high temperature can be maintained for a longer period, propylene or isobutylene is used. preferable.
  • Branched octyl group derived from the body branched nonyl group derived from the trimer of propylene, branched dodecyl group derived from the trimer of isobutylene, branched dodecyl derived from the tetramer of propylene
  • branched pentadecyl groups derived from a propylene or propylene pentamer tert-butyl groups derived from isobutylene, branched hexyl groups derived from propylene dimer, isobutylene dimer Derived from branched octyl group derived, branched nonyl group derived from propylene trimer, isobut
  • R 1 and R 2 in general formula (1) are preferably both alkyl groups.
  • a compound in which both R 1 and R 2 are alkyl groups tends to be less likely to generate sludge due to oxidation of the compound itself as compared to a compound in which one of R 1 and R 2 is a hydrogen atom.
  • alkyldiphenylamine represented by the general formula (1) a commercially available product may be used, or a synthetic product may be used.
  • the synthesized product uses a Friedel-Crafts catalyst and reacts diphenylamine with an alkyl halide having 1 to 16 carbon atoms and diphenylamine, or diphenylamine and an olefin having 2 to 16 carbon atoms or an olefin having 2 to 16 carbon atoms, or these It can be easily synthesized by reacting with the above oligomer.
  • Friedel-Crafts catalysts include metal halides such as aluminum chloride, zinc chloride, and iron chloride; acidic catalysts such as sulfuric acid, phosphoric acid, phosphorus pentoxide, boron fluoride, acidic clay, and activated clay. Etc. can be used.
  • Alkylated diphenylamine may be used alone, or a mixture of two or more different structures may be used.
  • the content of alkylated diphenylamine is preferably 0.05% by mass or more, more preferably 0.3% by mass or more, and still more preferably 0.5% by mass, based on the total amount of the lubricating oil composition, from the viewpoint of antioxidant properties. % Or more.
  • the alkylated diphenylamine content is preferably 5% by mass or less, more preferably 3% by mass or less, and still more preferably 1% by mass or less, based on the total amount of the lubricating oil composition, from the viewpoint of suppressing sludge formation. is there.
  • carboxylic acid constituting the copper carboxylate examples include aliphatic carboxylic acid, alicyclic carboxylic acid and aromatic carboxylic acid. These carboxylic acids may be unsubstituted or may have a substituent.
  • Aliphatic carboxylic acids include hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pentadecanoic acid, hexadecanoic acid (palmitic acid), heptadecanoic acid, octadecanoic acid ( Stearic acid) and oleic acid.
  • the dithiocarbamic acid constituting the copper dithiocarbamate may be unsubstituted or may have a substituent.
  • Examples of copper dithiocarbamate include compounds represented by the following general formula (2). [In Formula (2), n is 1 or 2, and R 3 and R 4 may be the same or different and each represents a hydrocarbyl group. ]
  • Examples of the hydrocarbyl group represented by R 3 and R 4 include an alkyl group, an alkenyl group, an aryl group, a cycloalkyl group, and a cycloalkenyl group.
  • an alkyl group having 2 to 8 carbon atoms is preferable from the viewpoint of further excellent oxidation life.
  • Specific examples of the alkyl group having 2 to 8 carbon atoms include an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, and an octyl group. These alkyl groups may be linear or branched.
  • the total number of carbon atoms of the hydrocarbyl group represented by R 3 and R 4 is preferably 4 or more.
  • either copper carboxylate or copper dithiocarbamate may be used, or both copper carboxylate and copper dithiocarbamate may be used.
  • each of the copper carboxylate and the copper dithiocarbamate may be used alone, or a mixture of two or more different structures may be used.
  • the lubricating oil composition according to the present embodiment contains the above-described copper-containing compound, but from the viewpoint of maintaining antioxidant properties for a long period of time, the copper content is based on the total amount of the lubricating oil composition. More than 0 mass ppm in terms of copper atom, preferably 1 mass ppm or more, more preferably 5 mass ppm or more, preferably 30 mass ppm or less, more preferably 20 mass ppm or less, and still more preferably 15 mass ppm. It is as follows.
  • the content of sulfur is preferably 100 mass ppm or less, more preferably 50 mass ppm or less, and even more preferably 10 mass ppm or less in terms of sulfur atom, based on the total amount of the lubricating oil composition, from the viewpoint of suppressing sludge formation. It is.
  • the sulfur content of the lubricating base oil contained in the lubricating oil composition is preferably 10 mass ppm or less, more preferably 7 mass ppm or less, more preferably 7 mass ppm or less in terms of sulfur atoms, based on the total amount of the lubricating oil base oil. Preferably it is 5 mass ppm or less.
  • copper content and “sulfur content” mean the content (unit: mass ppm) measured by ICP elemental analysis.
  • the kinematic viscosity and viscosity index of the lubricating oil composition are not particularly limited.
  • the kinematic viscosity at 40 ° C. of the lubricating oil composition can be 5 to 500 mm 2 / s, 20 to 100 mm 2 / s, or 30 to 60 mm 2 / s.
  • the kinematic viscosity at 100 ° C. of the lubricating oil composition may be 2 to 30 mm 2 / s, 4 to 20 mm 2 / s, or 6 to 10 mm 2 / s.
  • the viscosity index of the lubricating oil composition can be 90 or more, 105 or more, or 120 or more.
  • the lubricating oil composition according to the present embodiment may further contain other additives in addition to the alkylated diphenylamine and the copper-containing compound.
  • lubricating oil additives include antioxidants (phenolic antioxidants, amine-based antioxidants other than alkylated diphenylamine, etc.), ashless dispersants, metal-based detergents, extreme pressure agents, wear Inhibitors, viscosity index improvers, pour point depressants, friction modifiers, oiliness agents, corrosion inhibitors, rust inhibitors, demulsifiers, metal deactivators, seal swelling agents, antifoaming agents, colorants, etc. It is done.
  • antioxidants phenolic antioxidants, amine-based antioxidants other than alkylated diphenylamine, etc.
  • ashless dispersants include antioxidants (phenolic antioxidants, amine-based antioxidants other than alkylated diphenylamine, etc.), ashless dispersants, metal-based detergents, extreme pressure agents, wear Inhibitors, visco
  • the lubricating oil composition according to the present embodiment can be used in a wide range of lubricating oil fields.
  • Applications of the lubricating oil composition include engine oil, lubricating oil for driving systems such as an automatic transmission or a manual transmission, hydraulic working oil, turbine oil, compressor oil, and the like.
  • Example 1 to 6 Comparative Examples 1 to 10
  • lubricating oil compositions having the compositions shown in Tables 1 to 3 were prepared using the base oils and additives shown below, respectively.
  • Tables 1 to 3 also show the copper content and sulfur content (both element conversion values) of the lubricating oil composition.
  • Base oil 1 hydrorefined mineral oil (total aromatic content: 0.3 mass%, sulfur content: less than 10 mass ppm, 40 ° C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

La présente invention concerne une composition d'huile lubrifiante qui contient une huile de base d'huile lubrifiante, une diphénylamine alkylée et au moins un type de composé contenant du cuivre, choisi dans le groupe constitué par un acide carboxylique contenant du cuivre et un acide dithiocarbamique contenant du cuivre, la teneur en cuivre, sur base de la quantité totale de la composition d'huile lubrifiante, étant supérieure à 0 mais au plus de 30 ppm en masse en termes d'atomes de cuivre.
PCT/JP2016/088164 2015-12-28 2016-12-21 Composition d'huile lubrifiante Ceased WO2017115703A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201680069819.0A CN108291173A (zh) 2015-12-28 2016-12-21 润滑油组合物

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-257268 2015-12-28
JP2015257268A JP6480323B2 (ja) 2015-12-28 2015-12-28 潤滑油組成物

Publications (1)

Publication Number Publication Date
WO2017115703A1 true WO2017115703A1 (fr) 2017-07-06

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ID=59225042

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Application Number Title Priority Date Filing Date
PCT/JP2016/088164 Ceased WO2017115703A1 (fr) 2015-12-28 2016-12-21 Composition d'huile lubrifiante

Country Status (3)

Country Link
JP (1) JP6480323B2 (fr)
CN (1) CN108291173A (fr)
WO (1) WO2017115703A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63304096A (ja) * 1987-02-27 1988-12-12 エクソン　ケミカル　パテンツ　インコーポレーテッド 低燐潤滑剤
JPH06313183A (ja) * 1993-04-30 1994-11-08 Tonen Corp 潤滑油組成物
JPH07228882A (ja) * 1994-02-17 1995-08-29 Cosmo Sogo Kenkyusho:Kk ガスタービン油組成物
JPH093468A (ja) * 1995-04-21 1997-01-07 Hitachi Ltd 潤滑油組成物及び潤滑グリース組成物
JPH09506375A (ja) * 1993-09-13 1997-06-24 エクソン ケミカル パテンツ インコーポレイテッド 改良した酸化防止性を有する潤滑組成物
JPH10500161A (ja) * 1994-05-16 1998-01-06 エクソン ケミカル パテンツ インコーポレイテッド 潤滑組成物
JP2000001690A (ja) * 1998-05-01 2000-01-07 Exxon Res & Eng Co 乗用車用高燃費向上エンジン油
JP2007238720A (ja) * 2006-03-07 2007-09-20 Nippon Oil Corp 潤滑油組成物、酸化防止剤組成物及び潤滑油の粘度増加抑制方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100113313A1 (en) * 2007-03-28 2010-05-06 Idemitsu Kosan Co., Ltd. Lubricant composition

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63304096A (ja) * 1987-02-27 1988-12-12 エクソン　ケミカル　パテンツ　インコーポレーテッド 低燐潤滑剤
JPH06313183A (ja) * 1993-04-30 1994-11-08 Tonen Corp 潤滑油組成物
JPH09506375A (ja) * 1993-09-13 1997-06-24 エクソン ケミカル パテンツ インコーポレイテッド 改良した酸化防止性を有する潤滑組成物
JPH07228882A (ja) * 1994-02-17 1995-08-29 Cosmo Sogo Kenkyusho:Kk ガスタービン油組成物
JPH10500161A (ja) * 1994-05-16 1998-01-06 エクソン ケミカル パテンツ インコーポレイテッド 潤滑組成物
JPH093468A (ja) * 1995-04-21 1997-01-07 Hitachi Ltd 潤滑油組成物及び潤滑グリース組成物
JP2000001690A (ja) * 1998-05-01 2000-01-07 Exxon Res & Eng Co 乗用車用高燃費向上エンジン油
JP2007238720A (ja) * 2006-03-07 2007-09-20 Nippon Oil Corp 潤滑油組成物、酸化防止剤組成物及び潤滑油の粘度増加抑制方法

Also Published As

Publication number Publication date
JP2017119788A (ja) 2017-07-06
JP6480323B2 (ja) 2019-03-06
CN108291173A (zh) 2018-07-17

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