CN101070503B - Refrigerated machine oil composition - Google Patents

Refrigerated machine oil composition Download PDF

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CN101070503B
CN101070503B CN2006100786946A CN200610078694A CN101070503B CN 101070503 B CN101070503 B CN 101070503B CN 2006100786946 A CN2006100786946 A CN 2006100786946A CN 200610078694 A CN200610078694 A CN 200610078694A CN 101070503 B CN101070503 B CN 101070503B
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oil
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viscosity
base oil
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CN101070503A (en
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汪孟言
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BEIJING FURUNLIAN PETROCHEMICAL SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
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BEIJING FURUNLIAN PETROCHEMICAL SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
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Abstract

One kind of refrigerator oil compounding, this compounding includes base oil and the additive, the the base oil include the mix alpha alkene polymerized oil which decomposed by the wax, among them, the viscosity of the mix alpha alkene polymerized oil is smaller than 10 mm2 /s at 40 degree C. The refrigerator oil compounding provided by this invention has the following merits: (1) the R600A refrigerant has fine solubility, the flocculation point may reach lower than -60 degree C; (2)it has obvious energy conservation effect, compares with the refrigerator which viscosity is 22 mm2/s oils conserves energy 6% in 40 degree Cviscosity, it can economize on energy 6%, compares with the refrigerator which viscosity is 10 mm2/s at 40 degree C, it can economize on energy 2%.

Description

A kind of refrigerated machine oil composition
Technical field
The invention relates to a kind of refrigerated machine oil composition.
Background technology
Compression-type refrigerating system is made of refrigeration compressor, condenser, expansion valve, vaporizer etc., principle of work is when utilizing refrigeration agent gasification volatilization, absorb the heat of surrounding medium, temperature is reduced to be cooled off, by compressor refrigeration agent is restored then and be liquid, again gasification so moves in circles again.This refrigeration system is used for household electrical appliance such as refrigerator, air-conditioning in a large number, business machine such as industrial equipments such as freezer, refrigerating chamber and display stands, beverage, ice cream maker.Compressor is the heart of this refrigeration system, the refrigerator oil that plays lubricated, heat radiation, sealing and effect such as anticorrosion in compressor then has crucial influence to the performance performance and the life-span of compressor and refrigeration system, and therefore selecting the refrigerator oil of excellent performance is crucial to compression refrigerating system.
In the past, compression-type refrigerating system generally adopts fluorine Lyons, comprises that Refrigerant 12 (R12), fluoro trichloromethane (R11), difluorochloromethane (R22) etc. make refrigeration agent.But, the chlorine atom in the material of fluorine Lyons can with the ozone chain-react, the ozonosphere of earth surface is caused serious destruction, make the polar region, north and south the ozone cavity occur.As everyone knows, do not have ozonosphere, thereby solar ultraviolet causes human probability of suffering from skin carcinoma to increase the direct projection earth and environmental problem such as beneficial microorganism death.In order to protect the closely-related atmospheric ozone layer with the human lives, countries in the world government signed Montreal Protocol, had signed and issued Rio de Janeiro declaration in 1992 in 1987, had worked out the timetable that limits and forbid material production of fluorine Lyons and use jointly.China forbade the R12 refrigeration agent comprehensively since 2005.
For the regulation of engagement limits and forbidding fluorine Lyons material, from eighties of last century nineties, big quantity research has been carried out to not chloride novel refrigerant and supporting with it refrigerator oil in countries in the world.Du pont company takes the lead in having developed no chlorine refrigeration agent Tetrafluoroethane (R134A), and this refrigeration agent does not damage the ozone layer, and salient features and R12 ten minutes are approaching, have therefore obtained widespread use.But found afterwards that the Greenhouse effect index of R134A was too high; This refrigeration agent is very harsh to the requirement of refrigeration system in addition, makes its use face be subjected to considerable restraint.Low molecular hydrocarbon refrigeration agent such as R600A owing to have do not damage the ozone layer, the Greenhouse effect index is little, Energy Efficiency Ratio is high and can not produce the advantage of environmental problem again, therefore enjoys favor, obtained extensive popularization in the recent period, become the main flow of alternative refrigerant at present.Different refrigeration agents has different solvabilities and stability with refrigerator oil, therefore, must select to have with the R600A refrigeration agent refrigerator oil of good solubility and stability.
Refrigerator oil generally comprises base oil and the various additive that is used to improve other performance of refrigerator oil, as lubricant, low friction compound, oxidation inhibitor, corrosion inhibitor, kilfoam.The salient features of refrigerator oil such as rheological, viscosity temperature characteristic, low-temperature fluidity, flash-point and with the mutual solubility of refrigeration agent etc. all by basic oil properties decision.Therefore, the selection of refrigerator oil mainly concentrates in the selection of base oil.R600A is a kind of lighter hydrocarbons, and according to the similar principle that mixes, hydrocarbon-type oil and R600A have good mutual solubility.The external refrigerator oil of generally modulating this type as base oil with the naphthene base crude oil of the naphthene base crude oil of degree of depth dewaxing and hydroisomerization dewax.Though naphthene base crude oil has and R600A good solubility and good low-temperature performance, the viscosity height, flash-point is lower, lubricity is relatively poor, is unfavorable for the antifriction, energy-conservation of low-viscosity oil.
As the refrigerator oil of R600A refrigeration agent, the open flat 10-130685 suggestion of communique of Japan's special permission is made base oil with the synthetic oils such as paraffinic base Dormant oils, branched alkylbenzene, polyethers, ester class oil and fluorocarbon oil of naphthenic hydrocarbon Dormant oils and degree of depth dewaxing.But, the price height of synthetic oils such as polyethers, ester class oil and fluorocarbon oil, and good inadequately with solvability among the R600A; The low-temperature fluidity of the paraffinic base Dormant oils of degree of depth dewaxing is poor; Though the naphthene base crude oil of degree of depth dewaxing or hydroisomerization dewax and branched alkylbenzene have good low-temperature performance and good and solvability R600A, its viscosity index and flash-point are lower, lubricity is relatively poor, are unfavorable for the antifriction, energy-conservation of low-viscosity oil.
CN 1470626A discloses a kind of refrigerated machine oil composition, this refrigerated machine oil composition utilizes the distillation test method of vapor-phase chromatography to record boiling point and accounts for 5-35 weight % at the cut below 300 ℃, boiling point accounts for 5-35 weight % at the cut more than 500 ℃, and utilize identical method, record recovered temperature and accounting for 20%, the %C of n-d-M ring analysis more than 250 ℃ pMore than 35%, nitrogen content below the 10ppm, yield point below-20 ℃, 40 ℃ of viscosity are 7-150 square millimeter/second.Though this oil has abrasion resistance and the advantage that is suppressed at compressor exhaust valve place generation greasy filth preferably, but those skilled in the art will know that, cut below 300 ℃ is a kind of diesel oil distillate in fact, therefore this method is that the refrigerated machine oil composition flash-point is too low, poor stability and adding diesel oil has caused undoubtedly by the viscosity of adding diesel oil with the reduction refrigerated machine oil composition in fact.And after diesel oil volatilization back or content reduction, remaining cut especially boiling point is very high in the viscosity of the cut more than 500 ℃, causes energy consumption higher.Shortcoming poor with the intermiscibility of R600A, the low-temperature fluidity difference that this refrigerated machine oil composition also exists.
CN 1099454C discloses a kind of hydrocarbonaceous refrigerated machine oil composition, and said composition contains hydrocarbon-type oil as base oil, and described hydrocarbon-type oil is selected from least a in Dormant oils, olefin polymer, naphthalene compound and the alkylbenzene.Described olefin polymer comprises the alpha olefin oligomer of 5-12 carbon atom, and described alpha olefin oligomer is by being that raw material adopts known polymerization process polymerizations such as Z-type catalyst method, radical polymerization, aluminium chloride process, boron fluoride method to obtain with ethene and/or propylene.Refrigerated machine oil composition that the alpha olefin oligomer that employing is obtained by this method obtains and the intermiscibility of R600A are poor, can not realize effective purpose of energy saving.Because adopting higher ethene and/or the propylene of price is feedstock production, therefore used alpha olefin oligomer cost is higher.
CN 1054154C discloses a kind of refrigerated machine oil composition, total amount with composition is a benchmark, and it is the soft wax cracked C of 30-100 square millimeter/second that refrigerated machine oil composition contains the epoxide stabilizer of 0.1-5 weight %, the phosphoric acid ester lubricant of 0.1-5 weight %, the phenol type antioxidant of 0.1-3 weight % and the viscosity of surplus 5-C 18The mixed stand oil.Soft wax cracked C 5-C 18The mixed stand oil of mixed preparation can make the refrigerated machine oil composition that contains this stand oil have good and intermiscibility R600A and thermo-chemical stability, higher viscosity index, higher flash-point, and raw materials cost is low.But fractional energy savings only is below 3%.For the world today of energy scarcity, obviously the high more product of fractional energy savings has competitive power more.Therefore, press for a kind of refrigerated machine oil composition product that can further improve fractional energy savings of exploitation.
Summary of the invention
The objective of the invention is for the refrigerated machine oil composition energy-saving effect difference that overcomes prior art or with the shortcoming of the intermiscibility difference of R600A, a kind of good energy-conserving effect and the refrigerated machine oil composition good with the intermiscibility of R600A are provided.
Refrigerated machine oil composition provided by the invention contains base oil and additive, and described base oil contains the mixed stand oil of wax destructive distillation, and wherein, 40 ℃ of viscosity of described stand oil are less than 10 square millimeters/second.
The preparation method of refrigerated machine oil composition provided by the invention comprises base oil and additive is mixed that described base oil contains the mixed stand oil of wax destructive distillation, and wherein, 40 ℃ of viscosity of described stand oil are less than 10 square millimeters/second.
Refrigerated machine oil composition provided by the invention has following advantage: (1) has good solvability with the R600A refrigeration agent, and flock point can hang down and reach below-60 ℃; (2) have than remarkable energy saving effect, refrigerated machine oil composition provided by the invention is more energy-conservation 6% than the refrigerator oil that 40 ℃ viscosity is 22 square millimeters/second, than the refrigerator oil energy-conservation 2% that 40 ℃ viscosity is 10 square millimeters/second; (3) has higher viscosity index, than the high 30-50 of cycloalkanes fundamental mode refrigerator oil; (4) has higher flash-point, than high 10-20 ℃ of cycloalkanes fundamental mode refrigerator oil; (5) has lower frictional coefficient, than the low 0.02-0.03 of cycloalkanes fundamental mode refrigerator oil in the lubricated district of elastic fluid (EHL); (6) has good thermo-chemical stability.It is the refrigerator oil of refrigeration agent that refrigerator oil provided by the invention is especially suitable for use as with R600A, and also can be used for multicomponent mixture work medium and fluorine chlorine hydrogen hydrocarbon is the refrigerator oil of refrigeration agent.
Embodiment
According to the present invention, described base oil and the additive content in refrigerated machine oil composition gets final product for this area conventional content, for example, is benchmark with the total amount of composition, and the content of base oil can be 70-98 weight %, is preferably 75-97 weight %; Content of additive can be 2-30 weight %, is preferably 3-25 weight %.
According to the present invention, as long as 40 ℃ of viscosity of mixed stand oil can realize purpose of the present invention less than 10 square millimeters/second, 40 ℃ of viscosity of for example described mixed stand oil can be 5 to less than 10 square millimeters/second, are preferably 6-9 square millimeter/second.
All can reach purpose of the present invention though have any mixed stand oil of above-mentioned viscosity, under the preferable case, the boiling range that the gas-chromatography boiling range assay method of described mixed stand oil records is 300-380 ℃.More preferably wherein boiling range is that 300-350 ℃ cut accounts for 60-100 weight %, and boiling range accounts for 0-40 weight % greater than 350 ℃ to 380 ℃ cut.
Among the present invention, described mixed stand oil can be the various saturated and/or unsaturated polymerization product that obtains after the various mixed polymerizations.Described saturated polymerisate can be the product that the further hydrogenation of various mixed polymerisates obtains.
Owing to adopt the described method of CN 1054154C can only obtain the mixed stand oil that 40 ℃ of viscosity are 10-250 square millimeter/second, make that the energy-saving effect of refrigerated machine oil composition is poor.Therefore the inventor is devoted to study and obtains 40 ℃ of viscosity and be lower than 10 square millimeters of/second mixed stand oils as 6-9 square millimeter/second, the result is surprised to find that, can obtain the mixed stand oil of above-mentioned viscosity by using super acidic catalyst, heteropolyacid catalyst or Lewis acid complex catalyst.The kind of these catalyzer, composition and preparation method have done play-by-play in various patents and non-patent literature.Wherein, described super acidic catalyst can be solid super acid catalyst or liquid superacid catalyzer, and described solid super acid catalyst for example can be selected from SO 4 2-, ClO 4 -Or NO 3 -Load on the solid super-strong acid on the metal oxide, described metal oxide is selected from the oxide compound of the metallic element in periodic table of elements IIB, IVB, VB, VIB, VIIB, VII, VIII and the IIIA family, preferred described oxide compound is the oxide compound of zinc, titanium, zirconium, vanadium, chromium, molybdenum, tungsten, manganese, iron, cobalt, nickel, aluminium, gallium, more preferably the oxide compound of zirconium.SO wherein 4 2-, ClO 4 -, NO 3 -With the ratio of metal oxide be that the conventional ratio of this area gets final product, for example, be benchmark with the total amount of solid super-strong acid, NO 3 -Content be 0.1-10 weight %, the weight of metal oxide is 90-99.9 weight %.The preparation method of super acids has been conventionally known to one of skill in the art, does not repeat them here.Described heteropolyacid can be phosphorus heteropoly tungstic acid, molybdenum vanadium phospha polyacid, tungsten sila polyacid, phosphato-molybdic heteropolyacid, tungsten phospha polyacid.Described Lewis acid complex catalyst can be BF 3ROH, AlCl 3NaCI, AlCl 3Eto, AlCl 3ROH, AlCl 3RC=O, R are preferably the alkyl that carbonatoms is 1-6.
The concrete synthesis step of described mixed stand oil and other condition have been conventionally known to one of skill in the art, for example comprise that the mixed with wax destructive distillation adds alkaline matter and flocculating aids with catalyzer after temperature is that 120-150 ℃ mixing contacts 0.5-5 hour down, in 70-80 ℃ of reaction distillation after 1 hour down, cut viscosity less than 10 square millimeters/second cut, be mixed stand oil required for the present invention.Wherein, described alkaline matter can be alkaline earth metal oxide, alkaline earth metal hydroxides, alkalimetal oxide or alkali metal hydroxide, for example CaO, Ca (OH) 2, magnesium oxide, sodium hydroxide, preferably use Ca (OH) 2Described flocculating aids for example can be atlapulgite, aluminum oxide, preferred atlapulgite.The mixed stand oil that obtains with this method is because of containing the unsaturated ethylene linkage of part, and it is saturated therefore can further to carry out hydrogenation.Described hydrogenation can carry out after distillation, also can carry out before distillation.Be preferably secondary hydrogenation, wherein one-stage hydrogenation is that 270-280 ℃, hydrogen pressure are that the volume ratio of 3-7 MPa, hydrogen and oil is that 8-16, catalyzer are to carry out under the Ni-W-Mo-F condition in temperature preferably; Secondary hydrogenation is that 260-270 ℃, hydrogen pressure are that the volume ratio of 3-7 MPa, hydrogen and oil is that 8-16, catalyzer are Pt-α Al in temperature preferably 2O 3Carry out under the condition.Described hydroprocessing has been conventionally known to one of skill in the art, does not repeat them here.
The weight ratio of described mixed and catalyzer is that the feed molar ratio of conventional alpha-olefin polymerization reaction gets final product, for example, the feeding quantity of described catalyzer can be the 0.1-2.0 weight % of mixed weight, is preferably 0.5-1.5 weight %, more preferably 0.5-1.2 weight %.Described mixed is the mixed that wax destructive distillation obtains, and being preferably the carbonatoms that wax destructive distillation obtains is the mixed of 6-14.To the ratio between the various alhpa olefins without limits.
Described alkaline matter such as Ca (OH) 2The 1-5 weight % that is respectively mixed and catalyzer total amount with the add-on of flocculating aids such as atlapulgite gets final product, and is preferably 2-3 weight %.
Under the preferable case, described base oil can also contain alkylbenzene.Described alkylbenzene can in all sorts of ways and obtain, and for example can prepare by the aralkylization of alhpa olefin.When adopting method for preparing mixed stand oil of the present invention, preferably adopt the aralkylization of alhpa olefin to make alkylbenzene.The concrete operations of the aralkylization of described alhpa olefin have been conventionally known to one of skill in the art, do not repeat them here.Described alkylbenzene for example can be that the boiling range that gas-chromatography boiling range assay method records is 300-380 ℃, is preferably 300-350 ℃ alkylbenzene.Total amount with base oil is a benchmark, and the content of alkylbenzene can be 0-60 weight %, is preferably 5-55 weight %.
Described additive and content thereof can be various conventional additives and the conventional contents thereof that is used for refrigerated machine oil composition.For example, described additive can be for the lubricant that improves the refrigerator oil lubricity, improve the low friction compound of antifriction performance and improve the oxidation inhibitor, corrosion inhibitor, kilfoam etc. of thermal oxidation stability.In general, be benchmark with the total amount of refrigerated machine oil composition, content of additive is 2-30 weight %, is preferably 3-25 weight %.
Described lubricant can be the general phosphoric acid ester lubricant in this area, as in trimethylphenyl phosphoric acid ester, triphenyl, octyl group diphenyl phosphoester, benzyl diphenyl phosphoester, the phenyl thiophosphatephosphorothioate one or more.Total amount with composition is a benchmark, and the content of lubricant can be 0-6.0 weight %, is preferably 1.0-3.5 weight %.
Described low friction compound can be one or more in the general longer chain fatty acid in this area, long chain aliphatic alcohol, long-chain fat ester, acid amides, phosphonic acid ester and the commercially available energy-conservation low friction compound, can be in oleic acid, linoleic acid dimer, lauryl alcohol, butyl stearate, oleic acid glycol ester, amine hydroxybenzene, 124 Triazole amino dodecane salt etc., diisooctyl phosphonic acid ester and the eutectic spin one or more particularly.Total amount with composition is a benchmark, and the content of low friction compound can be 0-0.8 weight %, is preferably 0.02-0.6 weight %.
Described oxidation inhibitor can be the general various phenol type antioxidants in this area, as 2,6 ditertiary butyl p cresol, 2,3-di-t-butyl-4-cresols, 2,6-di-tert-butylphenol, 4, one or more in 4 '-tetramethyl-two (2, the 6-di-tert-butylphenol), Resorcinol, the 2-Naphthol.Total amount with composition is a benchmark, and the content of oxidation inhibitor can be 0-3 weight %, is preferably 0.2-0.8 weight %.
Described corrosion inhibitor can be this area general 124 Triazole derivative and thiadiazoles derivative class corrosion inhibitor, as N, N-dialkyl amido methylene-benzene triazole, 2,5-dimercapto-1,3, one or more in 4-thiadiazoles derivative, dimercapto-diazosulfide, the dimercaptothiodiazole sodium.Total amount with composition is a benchmark, and the content of described corrosion inhibitor can be 0-0.1 weight %, is preferably 0.02-0.05 weight %.
Described kilfoam can be the general kilfoam in this area, as the homopolymer of dimethyl silicone oil, acrylate or in the multipolymer one or more.Total amount with composition is a benchmark, and the content of described kilfoam can be 0-0.01 weight %, is preferably 0.001-0.005 weight %.
Unless stated otherwise, raw material of the present invention and reagent are the commercial goods.
Because the present invention only relates to improvement to the refrigerated machine oil composition component, there is no particular limitation to the preparation method of refrigerated machine oil composition, adopts conventional working method to get final product.For example, comprise base oil and various additive are mixed.Wherein, described base oil can adopt method for preparing of the present invention.
Among the present invention, described boiling range adopts ASTM D 2887 standard methods to measure, and this method is for adopting the fractional distribution assay method of petroleum products of vapor-phase chromatography.
The invention will be further described below by embodiment.
Embodiment 1
Present embodiment is used to illustrate refrigerated machine oil composition provided by the invention and preparation method thereof.
C with 1000 weight part wax destructive distillations 8-C 12Mixed (Lanzhou general petrochemicals factory provides) and 10 weight part phosphorus heteropoly tungstic acids reacted 1.5 hours down at 140 ℃, after the cooling-sedimentation branch removes sediment, added 20 weight part Ca (OH) in product 2, 30 weight part atlapulgites, reacted 0.5 hour down in 75 ℃, remove by filter carclazyte, cutting under reduced pressure, obtain 600 weight part ISO VG7 cuts, the viscosity that records this cut be 7 square millimeters/second, wherein boiling range be 312-348 ℃ account for 80 weight %, boiling range greater than 348 ℃ to 380 ℃ the 20 weight % that account for.Therefrom take out above-mentioned cut of 100 weight parts and 0.5 weight part 2,6-ditertbutylparacresol, 3 weight part trimethylphenyl phosphoric acid ester, 0.2 weight part oleic acid glycol ester and 0.03 weight part N, N-dialkyl amido methylene-benzene triazole mixes, be deployed into refrigerated machine oil composition S1, its physico-chemical property sees Table 1.
Embodiment 2
Present embodiment is used to illustrate refrigerated machine oil composition provided by the invention and preparation method thereof.
With 1000 weight part Chinese wax cracked C 6-C 12Mixed (oil one factory in Fushun provides) and 5 weight part AlCl 3.NaCl reacted 1.5 hours down at 150 ℃, after the cooling-sedimentation branch removes sediment, in product, add 30 weight part Ca (OH) 2, 20 weight part atlapulgites, reacted 0.5 hour down in 75 ℃, remove by filter carclazyte, cutting under reduced pressure, obtain 700 weight part ISO VG7 cuts, the viscosity that records this cut is that 9 square millimeters/second, boiling range are that 309-350 ℃ account for 68 weight %, boiling range are to 380 ℃ the 32 weight % that account for more than 350 ℃.Therefrom take out above-mentioned cut of 100 weight parts and 0.3 weight part 4,4 '-tetramethyl-two (2, the 6-di-tert-butylphenol), 2 weight part phenyl thiophosphatephosphorothioates, 1 weight part eutectic spin, 0.03 weight part dimercapto-diazosulfide mix, be deployed into refrigerated machine oil composition S2, its physico-chemical property sees Table 1.
Embodiment 3
Present embodiment is used to illustrate refrigerated machine oil composition provided by the invention and preparation method thereof.
C with 1000 weight part soap wax destructive distillations 6-C 8Mixed (oil one factory in Fushun provides) and 12 weight part BF 3.CH 3CH 2OH reacted 1.5 hours down at 140 ℃, after the cooling-sedimentation branch removes sediment, added 30 weight part Ca (OH) in product 2, 20 weight part atlapulgites, reacted 0.5 hour down in 75 ℃, remove by filter carclazyte, under reduced pressure cutting, obtain 500 weight part ISO VG7 cuts, the viscosity that records this cut is that 5 square millimeters/second, boiling range are that 302-346 ℃ account for 91 weight %, boiling range are 352-380 ℃ the 9 weight % that account for.Therefrom take out above-mentioned cut of 100 weight parts and 0.3 weight part 4,4 '-tetramethyl-two (2, the 6-di-tert-butylphenol), 2 weight part phenyl thiophosphatephosphorothioates, 1 weight part eutectic spin, 0.03 weight part dimercapto benzo thiadiazoles mix, be deployed into refrigerated machine oil composition S3, its physico-chemical property sees Table 1.
Embodiment 4
Present embodiment is used to illustrate refrigerated machine oil composition provided by the invention and preparation method thereof.
With 1000 weight part soft waxs (oleaginousness 20%) cracked C 6-C 8Mixed (oil one factory in Fushun provides) and 10 weight part SO 4 2-/ ZrO 2Catalyzer reacted 1.0 hours down at 135 ℃, after the cooling-sedimentation branch removes sediment, added 30 weight part Ca (OH) in product 2, 20 weight part atlapulgites, reacted 0.5 hour down in 75 ℃, remove by filter carclazyte, cutting under reduced pressure, obtain 680 weight part ISOVG7 cuts, the viscosity that records this cut is that 8 square millimeters/second, boiling range are 310-350 ℃ the 63 weight % that account for, and boiling range is to 380 ℃ the 37 weight % that account for more than 350 ℃.Therefrom take out above-mentioned cut of 100 weight parts and 0.3 weight part 4,4 '-tetramethyl-two (2, the 6-di-tert-butylphenol), 2 weight part phenyl thiophosphatephosphorothioates, 1 weight part eutectic spin, 0.05 weight part 124 Triazole amino dodecane salt and 0.03 weight part 2,5-dimercapto-1,3, the 4-thiadiazoles mixes, and is deployed into refrigerated machine oil composition S4, and its physico-chemical property sees Table 1.
Embodiment 5
Present embodiment is used to illustrate refrigerated machine oil composition provided by the invention and preparation method thereof.
With 200 weight part soft waxs (oleaginousness 20%) cracked C 6-C 8Mixed (oil one factory in Fushun provides) and 100 parts by weight of toluene are at 10 weight part ClO 4 -/ ZrO 2Catalyzer reacted 3 hours down at 65 ℃, and then replenished adding 800 weight part soft waxs (oleaginousness 20%) cracked C 6-C 8Mixed (oil one factory in Fushun provides), and under 140 ℃, continue reaction 1.0 hours, after the cooling-sedimentation branch removes sediment, in product, add 30 weight part Ca (OH) 2, 20 weight part atlapulgites, in 75 ℃ of down reactions 0.5 hour, remove by filter carclazyte, cutting under reduced pressure, obtain 560 weight part ISO VG7 cuts, the viscosity that records this cut is that 8 square millimeters/second, boiling range are 312-346 ℃ the 58 weight % that account for, and boiling range is 352-380 ℃ the 42 weight % that account for.Therefrom take out above-mentioned cut of 100 weight parts and 0.3 weight part 4,4 '-tetramethyl-two (2, the 6-di-tert-butylphenol), 2 weight part phenyl thiophosphatephosphorothioates, 1 weight part eutectic spin, 0.05 weight part 124 Triazole amino dodecane salt and 0.03 weight part 2,5-dimercapto-1,3, the 4-thiadiazoles mixes, and is deployed into refrigerated machine oil composition S5, and its physico-chemical property sees Table 1.
Embodiment 6
Step according to embodiment 1 prepares refrigerated machine oil composition S6, different is, carry out hydrogenation earlier before removing by filter the carclazyte underpressure distillation, the viscosity that records this cut is that 8 square millimeters/second, boiling range are 312-346 ℃ the 68 weight % that account for, and boiling range is 352-380 ℃ the 32 weight % that account for.The physico-chemical property of gained refrigerated machine oil composition sees Table 1.
Comparative Examples 1
Adopt the method identical with embodiment 1 to prepare refrigerated machine oil composition C1, that different is employing AlCl 3Make catalyzer, under reduced pressure cutting obtains 230 weight part ISO VG15 cuts, and the viscosity that records this cut is 16.2 square millimeters/second, wherein boiling range is 190-350 ℃ the 5 weight % that account for, and boiling range is to 382 ℃ the 95 weight % that account for more than 350 ℃.The physico-chemical property of refrigerated machine oil composition sees the following form 1.
Comparative Examples 2
Adopt the method identical to prepare refrigerated machine oil composition C2 with embodiment 1, different is that mixed obtains by ethylene, propylene is oligomeric, cutting under reduced pressure, obtain 310 weight part ISO VG15 cuts, the viscosity that records this cut is 14.8 square millimeters/second, wherein boiling range is 190-350 ℃ the 9 weight % that account for, and boiling range is to 375 ℃ the 91 weight % that account for more than 350 ℃.The physico-chemical property of refrigerated machine oil composition sees the following form 1.
Comparative Examples 3
The widest carry out same physico-chemical property evaluation as the alkyl refrigerator oil C3 (trade(brand)name sunisol GS Aj sun oil Co. production) of refrigeration agent to using in the market, the results are shown in Table 1 with R600A.
Comparative Examples 4
Wider carry out same physico-chemical property evaluation as the another kind of alkyl refrigerator oil C4 (the emerging product of trade(brand)name HC-22 Japan's bright dipping company produces) of refrigeration agent to using in the market, the results are shown in Table 1 with R600A.
Table 1
Figure G06178694620060511D000121
Annotate the 1:SRV friction wear testing machine and measure test conditions: room temperature, 1500 γ/minute, 50 Ns, 60 minutes.
Annotate 2: measure with little draft gauge (MTM), test conditions is: 1.25 lucky handkerchiefs, 40 ℃, 10% skid ratio.
The compressor performance test
The refrigerator oil sample of embodiment 1-6 and Comparative Examples 1-4 preparation is respectively got 300 milliliters inject freezer compressor, make refrigeration agent with 30 gram R600A, on the compressor performance testing table, make a service test, measure their COP value, and extrapolate their energy-saving effect by the COP value, the results are shown in Table 2.
Table 2
Sample source S1 S2 S3 S4 S5 S6 C1 C2 C3 C4
Fractional energy savings (%) 6.5 6 6 5.5 6.5 7 2 2. 2.5 0
From the result of last table 1 and table 2 as can be seen, refrigerated machine oil composition provided by the invention has good and solvability and thermo-chemical stability the R600A refrigeration agent, and have viscosity higher index, higher flash point, good low-temperature fluidity and good lubricity and lower frictional coefficient, shown than remarkable energy saving effect.And Comparative Examples 1 is owing to adopt conventional Lewis acid to make mixed polymeric catalyzer, thereby can not make viscosity less than 10 square millimeters/second mixed stand oil, cause the energy-saving effect of the refrigerated machine oil composition that makes as base oil with this mixed stand oil relatively poor.And Comparative Examples 2 not only can not make viscosity less than 10 square millimeters/second mixed stand oil, and the low-temperature fluidity of the mixed olefins stand oil that makes and all relatively poor with the intermiscibility of R600A refrigeration agent.This mainly may be because the catalyzer that the present invention adopts can make mixed carry out tactic polymerization, obtain viscosity less than 10 square millimeters/second mixed stand oil, the lewis acid catalyst that conventional Comparative Examples 1 adopts does not then have this tactic polymerization function.

Claims (19)

1. refrigerated machine oil composition, said composition contains base oil and additive, and described base oil contains the mixed stand oil of wax destructive distillation, it is characterized in that, less than 10 square millimeters/second, described mixed stand oil is by the C of wax destructive distillation 40 ℃ viscosity for described mixed stand oil 6-C 14Mixed obtains after temperature is that 120-150 ℃ mixing contacts 0.5-5 hour down with catalyzer, and described catalyzer is super acidic catalyst, heteropolyacid catalyst or Lewis acid complex catalyst.
2. composition according to claim 1, wherein, described mixed stand oil is 6-9 square millimeter/second 40 ℃ viscosity.
3. composition according to claim 1 wherein, is a benchmark with the total amount of composition, and the content of base oil is 70-98 weight %, and content of additive is 2-30 weight %.
4. composition according to claim 1, wherein, the boiling range of described mixed stand oil is 300-380 ℃.
5. composition according to claim 4, wherein, boiling range is that 300-350 ℃ cut accounts for 60-100 weight % in the described mixed stand oil, boiling range accounts for 0-40 weight % greater than 350 ℃ to 380 ℃ cut.
6. composition according to claim 1, wherein, described super acidic catalyst is selected from SO 4 2-, ClO 4 -Or NO 3 -Load on the solid super-strong acid on the metal oxide, described metal oxide is selected from the oxide compound of the metallic element in periodic table of elements IIB, IVB, VB, VIB, VIIB, VIII and the IIIA family; Described heteropolyacid catalyst is selected from phosphorus heteropoly tungstic acid, molybdenum vanadium phospha polyacid, tungsten sila polyacid, phosphato-molybdic heteropolyacid; Described Lewis acid complex catalyst is selected from BF 3ROH, AlCl 3NaCl, AlCl 3ROH, wherein R is that carbonatoms is the alkyl of 1-6.
7. according to claim 1 or 6 described compositions, wherein, the add-on of catalyzer is the 0.5-1.2 weight % of mixed add-on.
8. composition according to claim 1, wherein, the total amount that described base oil also contains with base oil is a benchmark, content is that the boiling range of 0-60 weight % is 300-380 ℃ a alkylbenzene.
9. composition according to claim 8, wherein, the content of described alkylbenzene is 5-55 weight %.
10. composition according to claim 1, wherein, described additive is selected from one or more in lubricant, low friction compound, oxidation inhibitor, corrosion inhibitor, the kilfoam.
11. the preparation method of a refrigerated machine oil composition, this method comprises base oil and additive is mixed, described base oil contains the mixed stand oil of wax destructive distillation, wherein, less than 10 square millimeters/second, described mixed stand oil is by the C of wax destructive distillation 40 ℃ viscosity for described mixed stand oil 6-C 14Mixed obtains after temperature is that 120-150 ℃ mixing contacts 0.5-5 hour down with catalyzer, and described catalyzer is super acidic catalyst, heteropolyacid catalyst or Lewis acid complex catalyst.
12. method according to claim 11, wherein, described mixed stand oil is 6-9 square millimeter/second 40 ℃ viscosity.
13. according to claim 11 or 12 described methods, wherein, be benchmark with the total amount of composition, the content of base oil is 70-98 weight %, content of additive is 2-30 weight %.
14. method according to claim 11, wherein, boiling range is that 300-350 ℃ cut accounts for 40-90 weight % in the described mixed stand oil, and boiling range accounts for 10-60 weight % greater than 350 ℃ to 380 ℃ cut.
15. method according to claim 11, wherein, described super acidic catalyst is selected from SO 4 2-, ClO 4 -Or NO 3 -Load on the solid super-strong acid on the metal oxide, described metal oxide is selected from the oxide compound of the metallic element in periodic table of elements IIB, IVB, VB, VIB, VIIB, VIII and the IIIA family; Described heteropolyacid catalyst is selected from phosphorus heteropoly tungstic acid, molybdenum vanadium phospha polyacid, tungsten sila polyacid, phosphato-molybdic heteropolyacid; Described Lewis acid complex catalyst is selected from BF 3ROH, AlCl 3NaCl, AlCl 3ROH, wherein R is that carbonatoms is the alkyl of 1-6.
16. according to claim 11 or 15 described methods, wherein, the add-on of catalyzer is the 0.5-1.2 weight % of mixed add-on.
17. method according to claim 11, wherein, the total amount that described base oil also contains with base oil is a benchmark, and content is that the boiling range of 0-60 weight % is 300-380 ℃ a alkylbenzene.
18. method according to claim 17, wherein, the content of described alkylbenzene is 5-55 weight %.
19. method according to claim 11, wherein, described additive is selected from one or more in lubricant, low friction compound, oxidation inhibitor, corrosion inhibitor, the kilfoam.
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