EP2128233A1 - Schmiermittelzusammensetzung für rotationsgasverdichter und damit gefüllter rotationsgasverdichter - Google Patents

Schmiermittelzusammensetzung für rotationsgasverdichter und damit gefüllter rotationsgasverdichter Download PDF

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Publication number
EP2128233A1
EP2128233A1 EP07859965A EP07859965A EP2128233A1 EP 2128233 A1 EP2128233 A1 EP 2128233A1 EP 07859965 A EP07859965 A EP 07859965A EP 07859965 A EP07859965 A EP 07859965A EP 2128233 A1 EP2128233 A1 EP 2128233A1
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EP
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Prior art keywords
gas compressor
rotary gas
lubricating oil
amine
degrees
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EP07859965A
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English (en)
French (fr)
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EP2128233B1 (de
EP2128233A4 (de
Inventor
Hideto Kamimura
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Idemitsu Kosan Co Ltd
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Idemitsu Kosan Co Ltd
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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
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/02—Specified values of viscosity or viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • C10M2215/065—Phenyl-Naphthyl amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/041—Triaryl phosphates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/043—Ammonium or amine salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/015—Distillation range
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/30—Refrigerators lubricants or compressors lubricants

Definitions

  • the present invention relates to a lubricating oil composition for a rotary gas compressor and a rotary gas compressor filled with the same.
  • a rotary gas compressor which generates less vibration than a reciprocating gas compressor, is operated with a massive amount of a lubricating oil being injected, so that a temperature of discharged gas can be lowered.
  • an oil-cooling screw compressor which is a positive displacement type, has features of a rotary type as well as features of the positive displacement type. Owing to the features such as high efficiency, compact size and long-period continuous operation, the oil-cooling screw compressor has been widely used in the industry (for example, Patent Documents 1 and 2).
  • a lubricating oil having a high kinematic viscosity of more than 5 mm 2 /s at 100 degrees C is typically used for such compressor.
  • an object of the invention is to provide a lubricating oil composition for a rotary gas compressor and a rotary gas compressor filled with the same, the lubricating oil composition having a sufficient lubricity performance as well as excellent capability of energy-saving and reducing a lubricating oil consumption.
  • a lubricating oil composition is particularly excellently applicable to a rotary gas compressor when a kinematic viscosity, a flash point and a distillation temperature of the lubricating oil composition are within a particular range, and then the invention have been achieved.
  • the invention provides a lubricating oil composition for a rotary gas compressor and a rotary gas compressor filled with the same as described below:
  • the lubricating oil composition for the rotary gas compressor according to the above aspect of the invention When the lubricating oil composition for the rotary gas compressor according to the above aspect of the invention is filled in the rotary gas compressor and the rotary gas compressor is operated, a sufficient lubricity performance is maintainable, while an energy-saving effect is excellent owing to a low kinematic viscosity. Further, owing to a low evaporativity of the lubricating oil composition, an evaporation loss is small even when the rotary gas compressor is operated for long hours.
  • the lubricating oil composition for the rotary gas compressor according to the above aspect of the invention is considerably effective particularly when being filled in an oil-cooling crew compressor.
  • a lubricating oil composition for a rotary gas compressor according to an aspect of the invention contains a lubricating base oil and an additive, the composition having a kinematic viscosity of 5 mm 2 /s or less at 100 degrees C, a flash point of 200 degrees C or more and 5 volume % distillation temperature of 350 degrees C or more.
  • the lubricant base oil is not particularly limitative, but any oil typically used as a lubricant base oil can be used irrespective of a mineral oil or a synthetic oil.
  • examples of the mineral oil may include paraffinic and naphthenic base oils which can be obtained by subjecting a lubricating oil fraction produced by atmospheric- and vacuum-distillation of a crude oil, to any suitable combination of refining processes selected from solvent-deasphalting, solvent-extracting, hydrocracking, solvent-dewaxing, catalytic-dewaxing, hydrorefining, sulfuric acid treatment and clay treatment.
  • suitable combination of refining processes selected from solvent-deasphalting, solvent-extracting, hydrocracking, solvent-dewaxing, catalytic-dewaxing, hydrorefining, sulfuric acid treatment and clay treatment.
  • examples of the synthetic oil may include: a poly- ⁇ -olefin (1-octene oligomer, 1-decene oligomer and the like), a polybutene, an isoparaffin, an olefin copolymer (an ethylene-propylene copolymer and the like), an alkylbenzene, an alkyl naphthalene, monoester (butyl stearate and the like), a dibasic acid ester (ditridecyl glutarate, di-2-ethylhexyladipate, diisodecyladipate, ditridecyladipate, di-2-ethylhexlsebacate and the like), a tribasic acid ester (tri-merit acid ester and the like), a polyol ester (trimethylol propane caplyrate, trimethylol propane pelargonate, pentaerythritol 2-ethylhexan
  • the base oil of any viscosity may be used for the composition. However, in consideration of lubricity, cooling performance and friction loss at agitation, it is desirable to use the base oil with a kinematic viscosity of 1 to 10,000 mm 2 /s at 40 degrees C, preferably 5 to 100 mm 2 /s, more preferably 10 to 68 mm 2 /s.
  • the base oil for the composition may be preferably selected from API (American Petroleum Institute) classification groups II to IV.
  • the lubricating oil composition for the rotary gas compressor according to the aspect of the invention contains at least either one of a phosphorous extreme pressure agent and an antioxidant.
  • the phosphorous extreme pressure agent is preferably orthophosphoric esters, phosphite esters, acidic phosphate esters, acidic phosphite esters or an amine salt thereof.
  • the orthophosphoric ester may be exemplified by a triaryl phosphate, a trialkyl phosphate, a trialkyl aryl phosphate, a triaryl alkyl phosphate and a trialkenyl phosphate, examples of which may include: a triphenyl phosphate, a tricresyl phosphate, a benzyl diphenyl phosphate, an ethyl diphenyl phosphate, a tributyl phosphate, an ethyl dibutyl phosphate, a cresyl diphenyl phosphate, a dicresyl phenyl phosphate, an ethylphenyl diphenyl phosphate, a diethylphenyl phenyl phosphate, a propylphenyl diphenyl phosphate, a dipropylphenyl phenyl phosphate, a triethylphenyl
  • Examples of the phosphite ester may include: a triethyl phosphite, a tributyl phosphite, a triphenyl phosphite, a tricresyl phosphite, a tri(nonylphenyl)phosphite, a tri(2-ethylhexyl)phosphite, a tridecyl phosphite, a trilauryl phosphite , a triisooctyl phosphite, a diphenylisodecyl phosphite, a tristearyl phosphite, a trioleyl phosphite and the like.
  • Examples of the acidic phosphate ester may include: a 2-ethylhexyl acid phosphate, a dinormal octyl acid phosphate, an ethyl acid phosphate, a butyl acid phosphate, an oleyl acid phosphate, a tetracosyl acid phosphate, an isodecyl acid phosphate, a lauryl acid phosphate, a tridecyl acid phosphate, a stearyl acid phosphate, an isostearyl acid phosphate and the like.
  • Examples of the acidic phosphite ester may include: a diethyl hydrogen phosphite, a dibutyl hydrogen phosphite, a dilauryl hydrogen phosphite, a dioleyl hydrogen phosphite, a distearyl hydrogen phosphite, a diphenyl hydrogen phosphite and the like.
  • Examples of amines to form the amine salt of the above compounds may include: a mono-substituted amine, a di-substituted amine or a tri-substituted amine represented by the following formula (1).
  • the alkyl group or the alkenyl group having 3 to 30 carbon atoms represented by R in the formula (1) may be linear, branched or cyclic.
  • R represents an alkyl group or an alkenyl group having 3 to 30 carbon atoms, preferably 4 to 18 carbon atoms, an aryl group or an arylalkyl group having 6 to 30 carbon atoms, preferably 6 to 15 carbon atoms, or a hydroxyalkyl group having 2 to 30 carbon atoms, preferably 2 to 18 carbon atoms; and n represents 1, 2 or 3.
  • the plural units ofR may be mutually the same or different.
  • Examples of the mono-substituted amine may include: a butyl amine, a pentyl amine, a hexyl amine, a cyclohexyl amine, an octyl amine, a lauryl amine, a stearyl amine, an oleyl amine, a benzyl amine and the like.
  • Examples of the di-substituted amine may include: a dibutyl amine, a dipentyl amine, a dihexyl amine, a dicyclohexyl amine, a dioctyl amine, a dilauryl amine, a distearyl amine, an dioleyl amine, a dibenzyl amine, a stearyl monoethanol amine, a decyl monoethanol amine, a hexyl monopropanol amine, a benzyl monoethanol amine, a phenyl monoethanol amine, tolyl monopropanol and the like.
  • Examples of the tri-substituted amine may include: a tributyl amine, a tripentyl amine, a trihexyl amine, a tricyclohexyl amine, a trioctyl amine, a trilauryl amine, a tristearyl amine, a trioleyl amine, a tribenzyl amine, a dioleyl monoethanol amine, a dilauryl monopropanol amine, a dioctyl monoethanol amine, a dihexyl monopropanol amine, a dibutyl monopropanol amine, an oleyl diethanol amine, a stearyl dipropanol amine, a lauryl diethanol amine, an octyl dipropanol amine, a butyl diethanol amine, a benzyl diethanol amine, a phenyl diethanol amine, a tolyl
  • a content of the extreme pressure agent is typically approximately 0.01 to 30 mass% of the total amount of the lubricating oil composition, preferably 0.01 to 10 mass%.
  • Antioxidants typically used for a lubricating oil such as an amine compound, a phosphorous compound, a sulfur compound, a phosphorous/sulfur containing compound and a phenol compound can be used as the antioxidant.
  • the amine compound may include: a monoalkyldiphenylamine compound such as monooctyldiphenylamine and monononyldiphenylamine; a dialkyl diphenylamine compound such as 4,4'-dibutyldiphenylamine, 4,4'-dipentyldiphenylamine, 4,4'-dihexyldiphenylamine, 4,4'-diheptyldiphenylamine, 4,4'-dioctyldiphenylamine and 4,4'-dinonyldiphenylamine; a polyalkyldiphenylamine compound such as tetrabutyldiphenylamine, tetrahexyldiphenylamine, tetrao
  • Examples of the phosphorous compound, sulfur compound and phosphorous/sulfur containing compound may include: the phosphorous compound such as diethyl[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]phosphonate, zinc dialkyldithiophosphate such as zinc di-2-ethylhexyldithiophosphate, 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazine-2-ylamino)phenol, a thioterpene compound such as a reactant of phosphorous pentasulfide and pinene, dialkyl thiodipropionate such as dilauryl thiodipropionate and distearyl thiodipropionate.
  • the phosphorous compound such as diethyl[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]
  • the phenol compound may include: alkyl phenols such as 2,6-di-tert-butyl-4-methylphenol and bisphenols such as methylene-4,4-bis(2,6-di-tert-butyl-4-methylphenol).
  • alkyl phenols such as 2,6-di-tert-butyl-4-methylphenol
  • bisphenols such as methylene-4,4-bis(2,6-di-tert-butyl-4-methylphenol.
  • diethyl[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]phosphonate is preferable in perspective of heat resistance.
  • a content of the antioxidant is typically approximately 0.01 to 10 mass% of the total amount of the lubricating oil composition, preferably 0.03 to 5 mass%.
  • the composition which is preferably formed of the above-described base oil and various additives, has a kinematic viscosity (according to JIS (Japanese Industrial Standard) K 2283) of 5 mm 2 /s or less at 100 degrees C, preferably 4.95 mm 2 /s or less, more preferably 4.5 mm 2 /s or less.
  • a flash point of the composition is 200 degrees C or more, preferably 210 degrees C or more, more preferably 220 degrees C or more.
  • 5 volume % distillation temperature of the composition (according to JIS K 2254) is 350 degrees C or more, preferably 370 degrees C or more, more preferably 390 degrees C or more.
  • lubricating oil consumption unpreferably increases when the rotary gas compressor is operated for long hours.
  • the rotary gas compressor filled with the above composition as a lubricating oil consumes less the lubricating oil and maintains a sufficient lubricity, thereby exhibiting an excellent energy-saving effect.
  • the composition when the composition is filled in an oil-cooling screw compressor, the composition exhibits considerably excellent cooling performance and heat resistance.
  • the kinematic viscosity of the composition at 40 degrees C is preferably 28 mm 2 /s or less, more preferably 25 mm 2 /s or less, more preferably 23 mm 2 /s or less.
  • the driving power of the rotary gas compressor is excessive.
  • the lubricating oil composition for the rotary gas compressor according to the aspect of the invention may be further added with an oiliness agent, a rust inhibitor, a detergent dispersant, a metal deactivator and an antifoaming agent as needed.
  • the oiliness agent may be exemplified by an aliphatic alcohol, a fatty acid compound such as a fatty acid and a fatty acid metal salt, an ester compound such as a polyol ester, a sorbitan ester and a glyceride and an amine compound such as an aliphatic amine.
  • the ester compound is preferable among these compounds since the ester compound can provide both heat resistance and lubricity.
  • a content of the oiliness agent is typically approximately 0.1 to 30 mass% of the total amount of the lubricating oil composition, preferably 0.5 to 10 mass%.
  • the rust inhibitor may be exemplified by a metal sulfonate, aliphatic amines, an organic phosphite ester, an organic phosphate ester, an organic metal sulfonate, an organic metal phosphate, an alkenyl succinic acid ester, a multivalent alcohol ester and the like.
  • a content of the rust inhibitor is typically approximately 0.01 to 10 mass% of the total amount of the lubricating oil composition, preferably 0.05 to 5 mass%.
  • the detergent dispersant may be exemplified by a metal sulfonate, a metal salicylate, a metal phenate, a metal phosphonate and succinimide.
  • a metallic detergent dispersant is preferable among these in perspective of detergent dispersivity and demulsification performance.
  • a content of the detergent dispersant is typically approximately 0.1 to 30 mass% of the total amount of the lubricating oil composition, preferably 0.5 to 10 mass%.
  • the metal deactivator may be exemplified by benzotriazoles and thiadiazoles. In view of blending effects, a content of the metal deactivator is typically approximately 0.01 to 10 mass% of the total amount of the lubricating oil composition, preferably 0.01 to 1 mass%.
  • the antifoaming agent may be exemplified by methyl silicone oil, fluorosilicone oil and polyacrylates. In view of blending effects, a content of the antifoaming agent is typically approximately 0.0005 to 0.01 mass% of the total amount of the lubricating oil composition.
  • Additives were added to predetermined base oils (API classification groups I to IV) to prepare lubricating oil compositions having respective properties. Maximum loading capacity, wear resistance, evaporation amounts and actual power consumption were evaluated. A method of examining properties of the lubricating oil compositions and a method for evaluating respective properties are shown below. Results are shown in Table 1.
  • Example 1 Example 2
  • Example 3 Example 4
  • Example 5 Example 6 Comparative 1 Comparative 2 base oil (mass%) API GII (100 neutral) remnant remnant remnant remnant API GIII (100 neutral) remnant API GIV (100 neutral) remnant API GII (150 neutral) 65 remnant API GI (100 neutral) remmant additives (mass%) dioctyldiphenylamine 2 2 2 2 2 2 2 2 octylphenyl- ⁇ -naphthylamirte 1 1 1 1 1 1 1 phosphorous containing antioxidant *1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 ester oiliness agent *2 - - - - 10 - - - tricresyl phosphate - - - 0.4 - - - - - amine salt of phosphate ester - - - 0.02 - - - - other additives *3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
  • the present invention is preferably applicable as a lubricating oil for a rotary gas compressor.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Compressor (AREA)
EP07859965.1A 2007-01-23 2007-12-21 Schmiermittelzusammensetzung für rotationsgasverdichter und verwendung in einem rotationsgasverdichter Not-in-force EP2128233B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007013084A JP5352053B2 (ja) 2007-01-23 2007-01-23 油冷式スクリュー空気圧縮機用潤滑油組成物およびこれを充填した油冷式スクリュー空気圧縮機
PCT/JP2007/074685 WO2008090706A1 (ja) 2007-01-23 2007-12-21 回転ガス圧縮機用潤滑油組成物およびこれを充填した回転ガス圧縮機

Publications (3)

Publication Number Publication Date
EP2128233A1 true EP2128233A1 (de) 2009-12-02
EP2128233A4 EP2128233A4 (de) 2011-05-18
EP2128233B1 EP2128233B1 (de) 2016-08-31

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Application Number Title Priority Date Filing Date
EP07859965.1A Not-in-force EP2128233B1 (de) 2007-01-23 2007-12-21 Schmiermittelzusammensetzung für rotationsgasverdichter und verwendung in einem rotationsgasverdichter

Country Status (5)

Country Link
US (1) US20100008810A1 (de)
EP (1) EP2128233B1 (de)
JP (1) JP5352053B2 (de)
CN (1) CN101589133B (de)
WO (1) WO2008090706A1 (de)

Cited By (1)

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CN101589133A (zh) 2009-11-25
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US20100008810A1 (en) 2010-01-14
CN101589133B (zh) 2013-07-17
EP2128233A4 (de) 2011-05-18
WO2008090706A1 (ja) 2008-07-31
JP5352053B2 (ja) 2013-11-27

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