WO2009043218A1 - Composition d'huile pour machine frigorifique et son procédé de préparation - Google Patents

Composition d'huile pour machine frigorifique et son procédé de préparation Download PDF

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Publication number
WO2009043218A1
WO2009043218A1 PCT/CN2007/071009 CN2007071009W WO2009043218A1 WO 2009043218 A1 WO2009043218 A1 WO 2009043218A1 CN 2007071009 W CN2007071009 W CN 2007071009W WO 2009043218 A1 WO2009043218 A1 WO 2009043218A1
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Prior art keywords
mixed
olefin
weight
oil
catalyst
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PCT/CN2007/071009
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English (en)
Chinese (zh)
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Mengyan Wang
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Beijing Friendlink Petrochemical T & D Co.; Ltd
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Publication of WO2009043218A1 publication Critical patent/WO2009043218A1/fr

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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
    • 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
    • C10M171/008—Lubricant compositions compatible with refrigerants
    • 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
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/0206—Well-defined aliphatic compounds 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
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/09—Characteristics associated with water
    • C10N2020/097—Refrigerants
    • C10N2020/101—Containing Hydrofluorocarbons
    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08—Resistance to extreme temperature
    • 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 refrigerating machine oil composition and a method of preparing the same. ⁇ Background technique ⁇
  • the compression refrigeration system consists of a refrigeration compressor, a condenser, an expansion valve, an evaporator, etc.
  • the working principle is to absorb the heat of the surrounding medium when the refrigerant is vaporized and volatilized, to lower the temperature for cooling, and then to pass the refrigerant through the compressor. Revert to liquid, re-gasify, and so on.
  • This type of refrigeration system is widely used in household appliances such as refrigerators and air conditioners, industrial equipment such as cold storage and cold storage rooms, and commercial equipment such as display cases, beverages, and ice cream machines.
  • the compressor is the heart of this refrigeration system, and the refrigeration oil that acts as lubrication, heat dissipation, sealing and anti-corrosion in the compressor has a very important impact on the performance and life of the compressor and refrigeration system, especially for compression.
  • the energy saving of the refrigeration system is closely related. Therefore, it is very important to select the refrigerating machine oil with excellent performance for the compression refrigeration system.
  • Freon including dichlorodifluoromethane (R12), fluorotrichloromethane (Rll), and difluorochloromethane (R22) as refrigerants.
  • R12 dichlorodifluoromethane
  • Rll fluorotrichloromethane
  • R22 difluorochloromethane
  • the chlorine atoms in the Freon substances react in a chain reaction with ozone, causing severe damage to the ozone layer on the Earth's surface, causing ozone holes in the Arctic and the Arctic. It is well known that there is no ozone layer, and the sun's ultraviolet rays will directly hit the earth, causing environmental problems such as increased risk of skin cancer and beneficial microbial death.
  • Low molecular hydrocarbon refrigerants such as R600A are favored because they have the advantages of not destroying the ozone layer, small greenhouse effect index, high energy efficiency ratio and no environmental problems. They have been widely promoted recently and have become the mainstream of alternative refrigerants. . Different refrigerants have different solubility and stability than refrigerator oils. Therefore, it is necessary to choose a refrigerating machine oil that has good solubility and stability with R600A refrigerant.
  • Refrigeration oils generally include base oils and various additives to improve other properties of the refrigeration oil, such as lubricants, friction reducers, antioxidants, corrosion inhibitors, antifoaming agents.
  • the main properties of the refrigerating machine oil such as rheology, viscosity-temperature properties, low-temperature fluidity, flash point, pour point and miscibility with refrigerant are determined by the nature of the base oil. Therefore, the choice of refrigeration oil is mainly focused on the selection of base oil.
  • R600A is a light hydrocarbon. According to the principle of similar compatibility, hydrocarbon oil has good mutual solubility with R600A.
  • 10-130685 proposes the use of anthraquinone mineral oil and deep dewaxed paraffinic mineral oil, branched mercaptobenzene, polyether, ester oil and fluorine oil.
  • Synthetic oil is used as the base oil.
  • synthetic oils such as polyethers, ester oils and fluoro oils are expensive and not sufficiently soluble in R600A; deep dewaxed paraffinic mineral oils have poor low-temperature fluidity; deep dewaxing or hydroisomerization
  • the waxy base oil and the branched mercaptobenzene have excellent low-temperature properties and good solubility with R600A, their viscosity index and flash point are low, and the lubricating performance is poor. It is not conducive to the reduction of friction and energy saving of low viscosity oil products.
  • CN 1470626A discloses a refrigerating machine oil composition which utilizes a distillation experiment method by gas chromatography to determine a fraction having a boiling point below 300 ° C and a fraction of 5 to 35 wt %, and a fraction having a boiling point of 500 ° C or more. 5-35 wt%, and using the same method, 20% of the distillation temperature above 250 ° ⁇ is measured, the % ⁇ of the ndM ring analysis is above 35%, the nitrogen content is below 10 ppm, and the flow point is -20. Below °C, the viscosity at 40 ° C is 7-150 mm 2 / sec.
  • the oil has good anti-wear properties and suppresses the advantage of generating sludge at the compressor exhaust valve
  • those skilled in the art know that the fraction below 300 ° C is actually a diesel fraction, so the method actually passes Diesel fuel is added to reduce the viscosity of the refrigerating machine oil composition, and the addition of diesel fuel undoubtedly results in a low flash point and poor safety of the refrigerating machine oil composition.
  • the remaining fraction especially the fraction having a boiling point above 500 °C, has a very high viscosity, resulting in high energy consumption.
  • such a refrigerating machine oil composition has a disadvantage of poor compatibility with R600A and poor low-temperature fluidity.
  • CN 1054154 A discloses a refrigerating machine oil composition
  • a refrigerating machine oil composition comprising 0.1 to 5% by weight of an epoxide stabilizer, 0.1 to 5% by weight of a phosphate-based lubricant, 0.1 based on the total amount of the composition.
  • a soft wax-cracked C 5 -C 18 mixed alpha olefin prepared mixed alpha olefin polymer oil enables the refrigerating machine oil composition containing the polymer oil to have excellent compatibility with R600A and thermochemical stability, and a high viscosity index. , higher flash point, and low raw material cost.
  • the energy saving rate is only 3% or less. For today's world of energy shortages, it is clear that products with higher energy savings are more competitive.
  • CN 1099454 A discloses a hydrocarbon-containing refrigerator oil composition
  • a hydrocarbon oil as a base oil the hydrocarbon oil being at least selected from the group consisting of mineral oil, olefin polymer, naphthalene compound and mercaptobenzene.
  • the olefin polymer comprises a C 16 -C 2Q a olefin oligomer, which uses a Ziegler catalyst method, a radical polymerization method, an aluminum chloride method, or a boron fluoride by using ethylene as a raw material.
  • a known polymerization method such as a method is obtained by oligomerization.
  • the ⁇ -olefin polymer obtained by this method generally has a viscosity at 40 ° C of more than 6 mm 2 /sec, and is 6.5 to 8.0 mm 2 /sec, making it difficult to obtain a lower viscosity oil.
  • An object of the present invention is to provide a refrigerating machine oil composition which is excellent in energy saving effect and good in compatibility with R600A, in order to overcome the disadvantages of the prior art refrigerating machine oil composition having low energy saving effect or poor compatibility with R600A.
  • the inventors of the present invention have unexpectedly discovered that a C 15 -C 22 mixed olefin polymerization oil obtained by polymerization of a C 5 -C 7 mixed alpha olefin or by arylation of a C 10 -C 14 mixed olefin or
  • the arylation product of C 16 -C 22 has a viscosity of 3 to less than 6 mm 2 /sec at 40 ° C, and has a high flash point, good low-temperature fluidity, and good compatibility with R600A, which can satisfy energy saving.
  • the requirements meet the requirements of refrigeration oil for safety, low temperature fluidity and compatibility with R600A.
  • the refrigerator oil composition provided by the present invention contains a mixed alpha olefin polymer oil and an additive as a base oil, wherein the mixed alpha olefin polymer oil has a viscosity at 40 ° C of 3 to less than 6 mm 2 /sec.
  • the olefin polymer oil is a C 15 -C 22 mixed isoolefin, a C 15 -C 22 mixed isomeric hydrocarbon or a mixture of a C 15 -C 22 mixed isoolefin and a C 15 -C 22 mixed isomeric hydrocarbon.
  • the method for producing a refrigerating machine oil composition provided by the present invention comprises uniformly mixing a mixed ⁇ -olefin polymerization oil as a base oil and an additive, wherein the mixed ⁇ -olefin polymerization oil has a viscosity at 40 ° C of 3 to less than 6 mm 2 / Second, the mixed a-olefin polymerization oil is a C 15 -C 22 mixed isomer, a C 15 -C 22 mixed isomer or a C 15 -C 22 mixed isomer and a C 15 -C 22 mixed isomer Mixing of Hydrocarbons
  • the refrigerating machine oil composition provided by the invention has the following advantages: (1) excellent solubility with R600A refrigerant, flocculation point as low as -70 ° C or less; (2) high flash point and ignition point a flash point of up to 160 ° C, flash point up to 170 ° C; (3) having excellent low temperature fluidity, low pour point -70 ° C,
  • the refrigerating machine oil provided by the invention is particularly suitable for use as a refrigerating machine oil with R600A as a refrigerant, and can also be used for multi-component mixed working fluids and hydrochlorofluorocarbons. Refrigerator for refrigerant
  • the content of the base oil and the additive in the refrigerating machine oil composition may be a conventional content in the art.
  • the base oil may be contained in an amount of 70 to 99.5% by weight based on the total amount of the composition. It is from 75 to 97% by weight; the content of the additive may be from 0.5 to 30% by weight, preferably from 3 to 25% by weight.
  • the object of the present invention can be attained as long as the viscosity of the mixed alpha olefin polymerized oil obtained by polymerization of an olefin is from 3 to less than 6 mm 2 /sec, for example, a viscosity of 40 ° C of the mixed alpha olefin polymerization oil. It may be 3-5.9 square millimeters per second, preferably 4-5.9 square millimeters per second.
  • the distillation range of the mixed alpha olefin polymerization oil is 250-310 ° C measured by a gas chromatographic distillation range method. It is preferably 270 to less than 300 °C. More preferably, the fraction having a distillation range of from 250 to 290 ° C accounts for 60 to 100% by weight, and the fraction having a distillation range of more than 290 ° C to 300 ° C accounts for 0 to 40% by weight. Further, it is preferable that the fraction having a temperature of 270-290 ° C accounts for 60-100% by weight, and the fraction having a distillation range of more than 290 ° C to less than 300 ° C accounts for 0-40% by weight.
  • the inventors of the present invention have found that when the mixed alpha olefin polymerization oil is a mixture of a C 15 -C 22 mixed isomer and a C 15 -C 22 mixed isomerized amidine, the mixture is used as a base oil to obtain a refrigerating machine oil.
  • the mixed alpha olefin polymerized oil C 15 -C 22 mixed olefin or C 15 -C 22 mixed isomeric terpene hydrocarbon as a base oil in terms of low temperature fluidity, lubricity and extreme pressure, therefore,
  • the mixed alpha olefin polymer oil is a mixture of a C 15 -C 22 mixed isoolefin and a C 15 -C 22 mixed isomeric terpene.
  • the c 15 -c 22 mixed olefin and the c 15 -c 22 mixed isomeric hydrocarbon may be in any ratio, but preferably, the C 15 -C 22 mixed olefin is mixed with C 15 -C 22 .
  • the weight ratio of isomeric terpene hydrocarbons is from 2:8 to 3:7. This may be because the mixed olefin can increase the asymmetry of the molecule and improve the low temperature performance of the oil; it can also increase the polarity of the molecule and increase the extreme pressure performance of the oil.
  • the C 15 -C 22 mixed olefin is mixed with the C 15 -C 22 mixed isomerized hydrocarbon in a weight ratio of 2:8 to 3:7, the "coordination effect" is exhibited, and the best effect is obtained.
  • the inventors of the present invention have found that although the C 15 -C 22 mixed olefin can be obtained in various ways, for example, in addition to the following trimerization of a C 5 -C 7 ci olefin, it can also be obtained by oligomerization of the aforementioned ethylene, or by The C 8 -C 12 ci olefin is dimerized, or obtained by pentapolymerization of a C 3 -C 5 ci olefin, but the mixed a olefin polymerized oil obtained by dimerization of a C 8 -C 12 ci olefin generally has a viscosity at 40 ° C. More than 6 square millimeters per second.
  • the use of C 3 -C 5 mixed pentapolymers of olefins the viscosity index is too small, the flash point is low, the safety is too poor, and it is not suitable as a base oil for low viscosity refrigeration oil.
  • the C 15 -C 22 mixed olefin obtained by the trimerization reaction of C 5 -C 7 a olefin is mostly a trimer of C 5 -C 7 ci olefin, and this trimer has moderate asymmetry.
  • High flash point, excellent low temperature fluidity and a suitable low viscosity generally in the range of 3 to less than 6 mm 2 /sec).
  • the C 15 -C 22 mixed olefin is obtained by a trimerization reaction of a C 5 -C 7 ci olefin
  • the preparation method of the C 15 -C 22 mixed olefin includes under olefin polymerization conditions
  • the C 5 -C 7 mixed a olefin is contacted with an olefin polymerization catalyst at a temperature of 130-160 ° C, a contact pressure of 0.1-0.2 MPa, and an olefin polymerization catalyst of a C 5 -C 7 mixed a olefin weight.
  • the olefin polymerization catalyst is a super acid catalyst, a heteropoly acid catalyst or a Lewis acid complex catalyst.
  • the type, composition and preparation method of the catalyst have been reported in detail in various patents and non-patent documents.
  • the super acid catalyst may be a solid super acid catalyst or a liquid super acid catalyst, and the solid super acid catalyst may be selected, for example, from S0 4 2 —, CK or N0 3 — a solid superacid supported on a metal oxide selected from the group consisting of oxides of metal elements of Groups IV, IVB, VB, VIB, VIIB, VII, VIII and IIIA of the Periodic Table of the Elements, preferably said oxidation
  • the material is an oxide of zinc, titanium, zirconium, vanadium, chromium, molybdenum, tungsten, manganese, iron, cobalt, nickel, aluminum or gallium, more preferably an oxide of zirconium.
  • the ratio of S0 4 2 —, CK , N0 3 — to the metal oxide is a conventional ratio in the art, for example, the content of N0 3 — is 0.1 to 10% by weight based on the total amount of the solid super acid.
  • the weight of the metal oxide is from 90 to 99.9% by weight.
  • the preparation method of the super acid is well known to those skilled in the art and will not be described herein.
  • the heteropolyacid may be phosphotungstic heteropoly acid, molybdenum vanadium heteropoly acid, tungsten silicopoly acid, phosphomolybdic heteropoly acid, tungsten phosphopolyacid.
  • the olefin polymerization may be continuous or batch, and the continuous form may be, for example, in the form of a fixed bed. For general laboratory testing, olefin polymerization is usually carried out in a batch process; for industrial production, a continuous process is generally employed for olefin polymerization. When the olefin polymerization is carried out by a batch method, the contact time may be from 1 to 4 hours.
  • the preparation method of the C 15 -C 22 mixed olefin further comprises adding a basic substance and a filter aid after the C 5 -C 7 mixed ⁇ olefin is contacted with the olefin polymerization catalyst, at 70-80 ° C
  • the lower reaction is distilled after 0.5 to 2 hours, and a fraction having a viscosity of 3 to less than 6 mm 2 /sec is cut out, i.e., a C 15 -C 22 mixed olefin which is a mixed alpha olefin polymerization oil required for the present invention.
  • the alkaline substance may be an alkaline earth metal oxide, an alkaline earth metal hydroxide, an alkali metal oxide or an alkali metal hydroxide, such as CaO, Ca(OH) 2 , magnesium oxide, sodium hydroxide, preferably Ca (OH) 2 .
  • the filter aid may be, for example, activated clay, alumina, preferably activated clay.
  • the basic substance such as Ca(OH) 2 and a filter aid such as activated clay may be added in an amount of 1-5 wt%, preferably 2-3 wt%, of the total amount of the C 5 -C 7 mixed a olefin and the catalyst, respectively. %.
  • the c 15 -c 21 mixed isomeric hydrocarbon may be a hydrogenated product of the c 15 -c 21 mixed olefin or
  • the hydrogenated product of the C 15 -C 22 mixed olefin can be obtained by various methods well known in the art, preferably the C 15 -C 22 mixed olefin
  • the preparation method of the hydrogenation product comprises: contacting the c 15 -c 22 mixed olefin with hydrogen under hydrogenation conditions and in the presence of a hydrogenation catalyst; the hydrogenation conditions include a temperature of 260-280 ° C, hydrogen partial pressure
  • the volume ratio of 3-7 MPa, hydrogen to C 15 -C 22 mixed olefin is 8-16;
  • the hydrogenation catalyst is Ni-W-Mo-F, Pt- a A1 2 0 3 Rayleigh (Raney Ni One or more of nickel and amorphous nickel.
  • the hydrogenation is preferably a two-stage hydrogenation, wherein one stage of hydrogenation is preferably at a temperature of 270-280 ° C and a hydrogen partial pressure of 3-7 MPa,
  • the volume ratio of hydrogen to oil is 8-16, and the catalyst is carried out under the condition of Ni-W-Mo-F; the second stage hydrogenation is preferably at a temperature of 260-270 ° C, a hydrogen partial pressure of 3-7 MPa, hydrogen and
  • the oil has a volume ratio of 8 to 16 and the catalyst is Pt-a A1 2 0 3 .
  • the hydrogenation operation is well known to those skilled in the art and will not be described herein.
  • the side of the olefin in contact with hydrogen The formula may be continuous or batch, and the continuous type may be carried out using a fixed bed.
  • the contact time may be 2-12 hours; when the olefin polymerization is carried out by a batch method
  • the volume airspeed can be 5-24 hours - 1 .
  • the hydrogenation may be carried out before the above-mentioned distillation with the basic substance and the filter aid, or after the distillation.
  • the arylation product of the C 1Q -C 14 mixed a olefin can be carried out by various methods known in the art, and the method for preparing the aryl thiolated product of the 1 () - 14 mixed olefin is preferably included in the present invention.
  • the C 1Q -C 14 mixed a olefin is contacted with a C 6 -C 8 aromatic hydrocarbon in the presence of a thiolation catalyst;
  • the thiolation condition includes a catalyst added in an amount of C 1Q -C 14 mixing 0.2-2 weight olefins and C 6 -C 8 aromatics total weight%, C 1Q -C 14 olefins mixture and a C 6 -C 8 aromatics weight ratio 1 : 1-1 : 1.2, the contact temperature is 60-90 ° C;
  • the thiolation catalyst is one or more of HF, BF 3 , A1C1 3 , solid super acid catalyst and heteropoly acid catalyst.
  • the C 1Q -C 14 mixed a olefin may be contacted with a C 6 -C 8 aromatic hydrocarbon in a continuous or batch manner, and the continuous process may be carried out using a fixed bed.
  • the contact time may be 1-3 hours.
  • the C 1Q -C 14 mixed olefin is one or more of a C 1Q -C 14 alpha olefin, a C 1Q -C 14 wax cracking olefin, and a C 1Q -C 14 normal terpene hydrocarbon dehydro olefin;
  • the C 6 -C 8 arene is one or more of benzene, toluene, xylene, and ethylbenzene.
  • the additive and its content may be various conventional additives for the refrigerating machine oil composition and their conventional contents.
  • the additive may be a lubricant for improving the lubricating properties of the refrigerating machine oil, an antifriction agent for improving the antifriction property, and an antioxidant, an anticorrosive agent, an antifoaming agent and the like for improving the thermal oxidation stability.
  • the lubricant may be a phosphate ester lubricant commonly used in the art, such as tricresyl phosphate, triphenyl phosphate, octyl diphenyl phosphate, benzyl diphenyl phosphate, phenyl thiophosphoric acid.
  • a phosphate ester lubricant commonly used in the art, such as tricresyl phosphate, triphenyl phosphate, octyl diphenyl phosphate, benzyl diphenyl phosphate, phenyl thiophosphoric acid.
  • the lubricant may be included in an amount of from 0 to 6.0% by weight, based on the total amount of the composition, preferably from 1.0 to 3.5% by weight.
  • the friction reducing agent may be one or more of long-chain fatty acids, long-chain fatty alcohols, long-chain fatty esters, amides, phosphonates, and commercially available energy-saving antifriction agents commonly used in the art, and specifically may be Oleic acid, dimerized linoleic acid, decadiol, butyl stearate, ethylene oleate, oleic acid amide, benzotriazole dodecylamine, etc., diisooctylphosphonate and eutectic roll One or several of the balls.
  • the antifriction agent may be included in an amount of 0 to 0.8% by weight, preferably 0.02 to 0.6% by weight based on the total amount of the composition.
  • the antioxidant may be various phenolic antioxidants commonly used in the art, such as 2,6-di-tert-butyl-p-cresol, 2,3-di-tert-butyl-4-methylphenol, 2,6- Di-tert-butylphenol, 4,4'-tetramethylbis(2,6-di-tert-butylphenol), One or more of hydroquinone and ⁇ -naphthol.
  • the antioxidant may be included in an amount of from 0 to 3% by weight, preferably from 0.2 to 0.8% by weight, based on the total amount of the composition.
  • the anticorrosive agent may be a benzotriazole derivative and a thiadiazole derivative anticorrosive agent commonly used in the art, such as anthracene, fluorenyl-dimercaptoaminomethylene benzotriazole, 2,5-dimercapto-1.
  • a 3,4-thiadiazole derivative, a dimercapto-benzothiadiazole, or a dimercaptothiadiazole sodium may be included in an amount of 0 to 0.1% by weight, preferably 0.02 to 0.05% by weight based on the total amount of the composition.
  • the antifoaming agent may be an antifoaming agent commonly used in the art, such as one or more of a dimethicone, a homopolymer or a copolymer of acrylate.
  • the antifoaming agent may be included in an amount of 0 to 0.01% by weight, preferably 0.001 to 0.005% by weight based on the total amount of the composition.
  • the preparation method of the refrigerating machine oil composition is not particularly limited, and a conventional operation method may be employed, for example, including mixing the base oil and various additives uniformly.
  • the base oil can be prepared by the above method of the invention.
  • the distillation range is measured by the ASTM D 2887 standard method, which is a petroleum product fraction distribution measurement method by gas chromatography; the viscosity is measured by the GB/T 265 method.
  • Example 1 The invention will now be further illustrated by way of examples.
  • Example 1 The invention will now be further illustrated by way of examples.
  • This embodiment is for explaining the refrigerating machine oil composition provided by the present invention and a preparation method thereof.
  • This embodiment is for explaining the refrigerating machine oil composition provided by the present invention and a preparation method thereof.
  • the viscosity was 5 mm 2 /s, the distillation range was 271-290 ° C, which was 68% by weight, and the distillation range was 290 ° C or more to 300 ° C, which was 32% by weight.
  • 100 parts by weight of the above fraction and 0.3 parts by weight of 4,4'-tetramethylbis(2,6-di-tert-butylphenol), 2 parts by weight of phenylphosphorothioate, 1 part by weight of eutectic balls, 0.03 parts by weight of the dimercapto-benzothiadiazole was uniformly mixed and formulated into a refrigerating machine oil composition S2, and its physical and chemical properties are shown in Table 1.
  • This embodiment is for explaining the refrigerating machine oil composition provided by the present invention and a preparation method thereof.
  • This embodiment is for explaining the refrigerating machine oil composition provided by the present invention and a preparation method thereof.
  • the fraction of ISO VG5 was measured to have a viscosity of 4.5 mm 2 /s, a distillation range of 270-290 ° C of 63% by weight, and a distillation range of 290 ° C or more to 310 ° C of 37 % by weight.
  • Example 5 100 parts by weight of the above fraction and 0.3 parts by weight of 4,4'-tetramethylbis(2,6-di-tert-butylphenol), 2 parts by weight of phenylphosphorothioate, 1 part by weight of eutectic balls, 0.05 parts by weight of benzotriazole dodecylamine salt and 0.03 parts by weight of 2,5-dimercapto-1,3,4-thiadiazole were uniformly mixed and formulated into a refrigerating machine oil composition S4, and the physical and chemical properties thereof are shown in Table 1.
  • Example 5 100 parts by weight of the above fraction and 0.3 parts by weight of 4,4'-tetramethylbis(2,6-di-tert-butylphenol), 2 parts by weight of phenylphosphorothioate, 1 part by weight of eutectic balls, 0.05 parts by weight of benzotriazole dodecylamine salt and 0.03 parts by weight of 2,5-dimercapto-1,3,4-thiadiazol
  • This embodiment is for explaining the refrigerating machine oil composition provided by the present invention and a preparation method thereof.
  • the fraction was found to have a viscosity of 4.6 mm 2 /sec, a distillation range of 272 to 290 ° C of 88% by weight, and a distillation range of 290 to 300 ° C of 12% by weight.
  • 100 parts by weight of the above fraction and 0.3 parts by weight of 4,4'-tetramethylbis(2,6-di-tert-butylphenol), 2 parts by weight of phenylphosphorothioate, 1 part by weight of eutectic balls, 0.05 parts by weight of benzotriazole dodecylamine salt and 0.03 parts by weight of 2,5-dimercapto-1,3,4-thiadiazole were uniformly mixed and formulated into a refrigerating machine oil composition S5, and the physical and chemical properties thereof are shown in Table 1.
  • This embodiment is for explaining the refrigerating machine oil composition provided by the present invention and a preparation method thereof.
  • the clay is removed by filtration and cut under reduced pressure to obtain 600 parts by weight of ISO VG5 fraction.
  • the viscosity of the fraction was 4.3 mm 2 /sec, wherein 70% by weight of the distillation range was 272-288 ° C and 30 wt % of the distillation range was more than 288 ° C to 300 ° C.
  • the SRV friction and wear tester measures the test conditions: room temperature, 1500 y / min, 50 N, 60 min.

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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)

Abstract

La présente invention concerne une composition d'huile pour réfrigérateur, qui comprend une huile polymère d'α-oléfines mélangées en tant qu'huile de base et un additif, la viscosité de l'huile polymère d'α-oléfines mélangées étant inférieure à 6 mm2/s à 40°C et supérieure à 3 mm2/s à 40°C. L'huile polymère d'α-oléfines mélangées est de l'isooléfine mélangée C15-C22 , de l'isoparaffine mélangée C15-C22 , ou le mélange d'isooléfine mélangée C15-C22 et d'isoparaffine mélangée C15-C22 . La composition d'huile pour réfrigérateur selon l'invention présente les avantages suivants: (1) la composition d'huile pour réfrigérateur peut finement dissoudre un fluide frigorigène R600A, son point de floculation peut être inférieur à -70°C; (2) la composition d'huile pour machine frigorifique présente une propriété de fluage fin, son point d'écoulement peut être inférieur à -70°C, sa viscosité cinématique est inférieure à 500 mm2/s à -40°C; (3) elle présente des performances d'économie d'énergie évidentes, comparée à l'huile pour réfrigérateur dont la viscosité est égale à 22 mm2/s à 40°C, elle permet une économie d'énergie de 14%, comparée à l'huile pour réfrigérateur dont la viscosité est égale à 10 mm2/s à 40°C, elle permet une économie d'énergie de 4%.
PCT/CN2007/071009 2007-09-29 2007-11-02 Composition d'huile pour machine frigorifique et son procédé de préparation WO2009043218A1 (fr)

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CN104419495B (zh) * 2013-08-30 2016-03-16 北京福润联石化科技开发有限公司 冷冻机油组合物用基础油和冷冻机油组合物及用于制冷的组合物和制冷方法
CN104370675B (zh) * 2014-08-05 2015-12-30 上海纳克润滑技术有限公司 以连续方式制备聚α-烯烃的方法
US10093594B2 (en) 2016-05-19 2018-10-09 Chevron U.S.A. Inc. High viscosity index lubricants by isoalkane alkylation
US9822046B1 (en) 2016-05-19 2017-11-21 Chevron U.S.A. Inc. Farnesane alkylation
CN109749776A (zh) * 2017-11-02 2019-05-14 中国石油大学(华东) 一种利用柴油生产环保橡胶填充油的方法
CN109749777A (zh) * 2017-11-02 2019-05-14 中国石油大学(华东) 一种生产环保橡胶填充油的方法
CN111234907B (zh) * 2020-01-21 2023-03-17 西安航天动力试验技术研究所 一种煤基全合成sn级润滑油及其制备方法

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JPH09208980A (ja) * 1996-02-02 1997-08-12 Nippon Oil Co Ltd 冷凍機油組成物および冷凍機用流体組成物
JPH09316478A (ja) * 1996-05-28 1997-12-09 Nippon Oil Co Ltd 引き抜き加工油組成物
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JPH09208980A (ja) * 1996-02-02 1997-08-12 Nippon Oil Co Ltd 冷凍機油組成物および冷凍機用流体組成物
JPH09316478A (ja) * 1996-05-28 1997-12-09 Nippon Oil Co Ltd 引き抜き加工油組成物
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