CN104152212A - Lubricant and preparation method thereof - Google Patents
Lubricant and preparation method thereof Download PDFInfo
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- CN104152212A CN104152212A CN201410414419.1A CN201410414419A CN104152212A CN 104152212 A CN104152212 A CN 104152212A CN 201410414419 A CN201410414419 A CN 201410414419A CN 104152212 A CN104152212 A CN 104152212A
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Abstract
The invention relates to the field of lubricant, and specifically relates to a lubricant and a preparation method thereof. The lubricant is composed of the following raw materials in parts by weight: 50 to 150 parts of carbonic acid alcohol ester and 2 to 5 parts of lubricant conventional additive; wherein the carbonic acid alcohol ester comprises one or more of carbonic acid straight chain alcohol ester, carbonic acid branch chain alcohol ester, and carbonic acid polyol ester. The lubricant prepared through the provided preparation method has the advantages of excellent performance, no toxicity, biodegradability, wide viscosity range, low friction resistance, good oxidation and thermal stability, good compatibility with rubber sealing materials, wear resistance, and wide application range, can be directly used as vehicle lubricant or industrial lubricant, or can be co-used with other lubricants.
Description
Technical field
The present invention relates to lubricating oil field, in particular to a kind of lubricating oil and preparation method thereof.
Background technology
Lubricating oil is to be used in all kinds mechanically to reduce friction; the liquid lubricant of protection machinery and workpiece; main play the effects such as lubricated, cooling, antirust, clean, sealing and buffering, according to its source and composition, can be divided into natural fats and oils (being animal and plant greases), mineral based lubricating oil and ucon oil.Animal and plant grease was just used as lubricant with the load that lightens one's labor before thousands of years, it has good lubricity and load bearing capacity, but oxidizable, facile hydrolysis, easily thermolysis, low temperature flowability is poor, can not meet fast-developing modern mechanical industrial requirement.Mineral oil is refined and is formed by crude oil, and chemical composition comprises high boiling point, high-molecular weight hydrocarbon and non-hydrocarbons mixture, is Nonrenewable resources, and its biodegradability is poor, uses the dual-pressure that is faced with environment and resource.
Since 1930's Mo, first-generation ester oil was born, just with its good lubricity and higher heat-resistant quality, received people's concern.Lubricating oil in esters is generally divided into monoesters, dibasic acid esters, polyol ester etc.Monoesters is the ester that monohydroxy-alcohol and unary fatty acid form, and its price is relatively cheap, viscosity is low, biological degradability is high, but low-temperature fluidity is poor.Dibasic acid esters is generally the 2-ethylhexyl ester of hexanodioic acid, nonane diacid or sebacic acid, the different alcohol ester of dodecanedioic acid etc., it can use in wide temperature range, pour point is low, low-temperature performance and lubricity good, but easily reduce the abrasion resistance of anti-wear agent, therefore need to mate with anti-wear agent use.Polyol ester (being neopentyl polyol ester) is to be formed by polyvalent alcohol and the unary fatty acid esterification with neo-pentyl, has good thermotolerance, oxidation-resistance and oilness, but its viscosity less, be of limited application.Be that di-esters or polyol lubricant all possess unique separately premium properties, and can meet some special service requirementss, but all exist separately certain defect.The patent of invention that is CN102300966A as publication number discloses a kind of lubricating oil of polyol ester, can be used for being used as in hydraulic pressure or gear compound and industrial lubricants lubrication base thing or slip additive, it has higher viscosity index, but the kinematic viscosity under the condition of 100 ℃ is lower, cause its use range to have certain limitation.
Summary of the invention
The object of the present invention is to provide a kind of lubricating oil and preparation method thereof, to solve the above problems.
A kind of lubricating oil is provided in an embodiment of the present invention, and its starting material comprise following component according to the mass fraction: carbonic acid alcohol ester 50-150 part, lubricating oil conventional additives 2-5 part; Wherein said carbonic acid alcohol ester comprises one or more in carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester and carbonic acid polyol ester;
One or both and the straight chain alcohol of described carbonic acid straight chain alcohol ester in methylcarbonate and NSC 11801 carries out transesterification reaction gained;
One or both and the branched-chain alcoho of described carbonic acid side chain alcohol ester in methylcarbonate and NSC 11801 carries out transesterification reaction gained;
One or both and the polyvalent alcohol of described carbonic acid polyol ester in methylcarbonate and NSC 11801 carries out transesterification reaction gained.
Preferably, its starting material of described lubricating oil comprise following component according to the mass fraction: 10～20 parts of carbonic acid straight chain alcohol esters, 20～70 parts of carbonic acid side chain alcohol esters, 20～70 parts of carbonic acid polyol esters, 2～3 parts of lubricating oil conventional additives.
The lubricating oil that the embodiment of the present invention provides; compare with lubricating oil of the prior art; it still has higher viscosity under the condition of 100 ℃ can reach 11 left and right; in the good pour point low energy of cold condition current downflow, reach below-25 ℃; the lubrication base thing or the slip additive that can be used for hydraulic pressure, transmission, braking, gear and engine are used; widened the use range of lubricating oil, guaranteed can flow when low temperature smooth and easy, and enough defencive functions are provided when high temperature.
Wherein the source of NSC 11801 and methylcarbonate is that methylcarbonate, NSC 11801 can be prepared with biomass material in the following way on a large scale: first biomass material generates ethanol through direct fermentation as the sugar crops such as sugarcane, beet, sweet sorghum and cassava, potato, corn and other starches crop, ethanol generates ethene after dehydration, ethene generates oxyethane after oxidation, oxyethane and carbon dioxide reaction can Formed vinyl acetates, and NSC 11801 is carried out transesterification reaction with methyl alcohol again and made methylcarbonate.
Preferably, its starting material comprise following component according to the mass fraction: 10～20 parts of carbonic acid straight chain alcohol esters, 20～30 parts of carbonic acid side chain alcohol esters, 50～70 parts of carbonic acid polyol esters, 2～3 parts of lubricating oil conventional additives.When in component, the content of carbonic acid polyol ester is many, kinematic viscosity under its 100 ℃ of conditions can reach 12, be more suitable for for regarding automobile oil, because part tolerance clearance on vehicle is little, need good wear resistance and oil film, just need the radiating effect of its lubricating oil better, high temperature and low-temperature fluidity, antioxygen and volatility effect also will be got well, so the content high energy of carbonic acid polyol ester improves the heat dispersion of lubricating oil.Automobile oil, comprises that oil for engine oil, hydraulic transmission oil, gear oil, brake solution, water tank and cooling system, automatic wave box are oily, brake and clutch system wet goods.
Preferably, its starting material comprise following component according to the mass fraction: 10～20 parts of carbonic acid straight chain alcohol esters, 50～70 parts of carbonic acid side chain alcohol esters, 20～30 parts of carbonic acid polyol esters, 2～3 parts of lubricating oil conventional additives.When being because equipment part gap is large in industrial use, need to strengthen its lubricity, relatively less demanding to heat dispersion, kinematic viscosity under its 100 ℃ of conditions can reach 10 left and right, so the content that the component concentration that reduces carbonic acid polyol ester improves side chain alcohol ester is so that lubricant effect is better, Industrial Oil comprises the lubricating oil on millwork equipment, comprise mold oil, ROLLING OIL, machining oil, turbine oil, spindle oil, circulation wet goods, especially can be used for the high loading that plain oil cannot be satisfied, high temperature lubricating system, as wheel box, transmission case, heavy duty etc.
Preferably, the carbonatoms of described straight chain alcohol is 12～18.
Preferably, the carbonatoms of described branched-chain alcoho is 12～18.
Preferably, described polyvalent alcohol is one or more in tetramethylolmethane, TriMethylolPropane(TMP) and neopentyl ethylene glycol, if can increase owing to carrying out excessive its viscosity of alcohol carbon number of transesterification reaction, thereby make oil body high too, therefore should select the moderate alcohols of carbon number.
Preferably, the performance index of described lubricating oil are as follows: the kinematic viscosity under 40 ℃ of conditions is 74～76mm
2/ s, the kinematic viscosity under 100 ℃ of conditions is 10～13mm
2/ s, pour point is-25～-29 ℃.
The embodiment of the present invention also provides a kind of preparation method of lubricating oil, comprises the steps:
Measure according to the mass fraction starting material; Described starting material mixing and stirring is obtained to described lubricating oil; Described lubricating oil property indices is detected; Detecting qualified rear packing gets product.
The lubricating oil of being prepared by the preparation method of embodiment of the present invention lubricating oil, its superior performance, nontoxic, biodegradable, range of viscosities is wide, friction resistance is low, oxidation and heat-resistant quality good, in addition itself and rubber packing material compatibleness are good and resistance to wear, have wide range of applications, can directly be used as automobile-used or industrial lubricant, also can be in harmonious proportion and use with other lubricating oil.
The outstanding characteristic of the lubricating oil of the embodiment of the present invention have following some: good resistance to elevated temperatures, resistance to oxidation stability, high flash point, high burning-point, pyrolytic decomposition temperature, can meet the various device needs of working under the inefficient long term high temperature of mineral oil.Low-temperature performance and viscosity-temperature characteristics can be good.Most ucon oils have low condensation point, and low temperature viscosity and high viscosity index, can meet the equipment lubrication requirement of working at wide region temperature.Vaporization losses is little.The general component of ucon oil is single, and molecule is neat, uses the base oil of identical viscosity, and the vaporization losses of ucon oil is more much smaller than mineral lubricating oils.Under identical conditions, the vaporization losses of mineral lubricating oils is 5～10 times of ucon oil, and under hot conditions, this difference is just more obvious.
Embodiment
Below by specific embodiment son and the present invention is described in further detail.
Embodiment 1
The preparation method of lubricating oil is as follows:
(A) methylcarbonate and straight chain alcohol are carried out to transesterification reaction and obtain carbonic acid straight chain alcohol ester, methylcarbonate and branched-chain alcoho carry out transesterification reaction and obtain carbonic acid side chain alcohol ester;
(B) by carbonic acid straight chain alcohol 25kg, carbonic acid branched-chain alcoho 25kg, and lubricating oil conventional additives comprise oxidation inhibitor, anti-wear agent, dispersion agent etc. altogether 2kg carry out mixing and stirring and obtain lubricant;
(C) detect the performance index of lubricating oil, performance index parameter is as follows: kinematic viscosity (100 ℃), 11.41mm
2/ s, kinematic viscosity (40 ℃), 75.9mm
2/ s, viscosity index 147, brookfield viscosity (18 ℃) 4420cPs, low-temperature dynamic viscosity (20 ℃) 3260mPa.s, low-temperature dynamic viscosity (25 ℃) 6300mPa.s, pour point-27 ℃, 235 ℃ of flash-points, corrosion test (No. 15 rod iron A methods) is rustless after detecting, and seal compatibility energy index SH/T0305 is 4, all detects qualified packing afterwards and gets product.
Embodiment 2
The preparation method of lubricating oil is as follows:
(A) mixture of methylcarbonate and NSC 11801 is carried out to transesterification reaction with positive stearyl alcohol and obtain carbonic acid straight chain alcohol ester, NSC 11801 and i-octadecanol carry out transesterification reaction and obtain carbonic acid side chain alcohol ester, carry out transesterification reaction obtain carbonic acid polyol ester in the mixture of methylcarbonate and NSC 11801 with TriMethylolPropane(TMP);
(B) by carbonic acid straight chain alcohol 20kg, carbonic acid branched-chain alcoho 70kg, carbonic acid polyol ester 70kg and lubricating oil conventional additives comprise oxidation inhibitor, anti-wear agent, dispersion agent etc. altogether 5kg carry out mixing and stirring and obtain lubricant;
(C) detect the performance index of lubricating oil, performance index parameter is as follows: kinematic viscosity (100 ℃), 10.00mm
2/ s, kinematic viscosity (40 ℃), 74.4mm
2/ s, viscosity index 145, brookfield viscosity (18 ℃) 4120cPs, low-temperature dynamic viscosity (20 ℃) 3120mPa.s, low-temperature dynamic viscosity (25 ℃) 6100mPa.s, pour point-25 ℃, 238 ℃ of flash-points, corrosion test (No. 15 rod iron A methods) is rustless after detecting, and seal compatibility energy index SH/T0305 is 4, all detects qualified packing afterwards and gets product.
Embodiment 3
The preparation method of lubricating oil is as follows:
(A) NSC 11801 is carried out to transesterification reaction with positive hexadecanol and obtain carbonic acid straight chain alcohol ester, NSC 11801 and different lauryl alcohol carry out transesterification reaction and obtain carbonic acid side chain alcohol ester, and the mixture of the mixture of methylcarbonate and NSC 11801 and neopentyl ethylene glycol and tetramethylolmethane carries out transesterification reaction and obtains carbonic acid polyol ester;
(B) by carbonic acid straight chain alcohol 20kg, carbonic acid branched-chain alcoho 30kg, carbonic acid polyol ester 50kg and lubricating oil conventional additives comprise oxidation inhibitor, anti-wear agent, dispersion agent etc. altogether 2kg carry out mixing and stirring and obtain lubricant;
(C) detect the performance index of lubricating oil, performance index parameter is as follows: kinematic viscosity (100 ℃), 11.41mm
2/ s, kinematic viscosity (40 ℃), 75.9mm
2/ s, viscosity index 147, brookfield viscosity (18 ℃) 4280cPs, low-temperature dynamic viscosity (20 ℃) 3260mPa.s, low-temperature dynamic viscosity (25 ℃) 6238mPa.s, pour point-26 ℃, 228 ℃ of flash-points, corrosion test (No. 15 rod iron A methods) is rustless after detecting, and seal compatibility energy index SH/T0305 is 4, all detects qualified packing afterwards and gets product.
Embodiment 4
The preparation method of lubricating oil is as follows:
(A) mixture of methylcarbonate and n-dodecanol and positive hexadecanol is carried out to transesterification reaction and obtain carbonic acid straight chain alcohol ester, NSC 11801 and different lauryl alcohol carry out transesterification reaction and obtain carbonic acid side chain alcohol ester, carry out transesterification reaction obtain carbonic acid polyol ester in the mixture of methylcarbonate and NSC 11801 with TriMethylolPropane(TMP);
(B) by carbonic acid straight chain alcohol 20kg, carbonic acid branched-chain alcoho 50kg, carbonic acid polyol ester 30kg and lubricating oil conventional additives comprise oxidation inhibitor, anti-wear agent, dispersion agent etc. altogether 5kg carry out mixing and stirring and obtain lubricant;
(C) detect the performance index of lubricating oil, performance index parameter is as follows: kinematic viscosity (100 ℃), 10.00mm
2/ s, kinematic viscosity (40 ℃), 74.4mm
2/ s, viscosity index 145, brookfield viscosity (18 ℃) 4120cPs, low-temperature dynamic viscosity (20 ℃) 3120mPa.s, low-temperature dynamic viscosity (25 ℃) 6100mPa.s, pour point-25 ℃, 231 ℃ of flash-points, corrosion test (No. 15 rod iron A methods) is rustless after detecting, and seal compatibility energy index SH/T0305 is 4, all detects qualified packing afterwards and gets product.
Embodiment 5
The preparation method of lubricating oil is as follows:
(A) prepare catalyst for ester exchange reaction: sodium carbonate and cerous nitrate are dissolved in distilled water, make metal-mixed solution of rare earth of 1mol/L; Above-mentioned mixing solutions be impregnated in to Al
2o
3after particle 24h, in 120 ℃ of dry 12h, then in 500 ℃ of roasting 3h, pulverizing, screening 20-40 order, make metal-rare earth loaded catalyzer, and wherein in metal-rare earth loaded catalyzer, the mol ratio of sodium oxide and cerium oxide is 4:1, described Al
2o
3weight account for 80% of metal-rare earth loaded catalyzer, i.e. Al
2o
3with the weight proportion of active ingredient (sodium oxide and cerium oxide) be 80:20;
(B) prepare carbonic acid straight chain alcohol ester: methylcarbonate and n-dodecanol join transesterification reactor after mixing, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurization, carry out transesterification reaction, make carbonic acid two (lauryl alcohol base) ester, wherein the mol ratio of methylcarbonate and n-dodecanol is 1:4, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:2, the temperature of controlling transesterification reaction is 160 ℃, absolute pressure is 8MPa, reaction times is 2h, the yield of carbonic acid two (lauryl alcohol base) ester is 91%,
(C) prepare carbonic acid side chain alcohol ester: will after methylcarbonate and the mixing of different tridecanol, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurizeed, carry out transesterification reaction, make carbonic acid two (different tridecanol base) ester, wherein the mol ratio of methylcarbonate and different tridecanol is 1:4, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:2, the temperature of controlling described transesterification reaction is 190 ℃, absolute pressure is 8MPa, and the reaction times is 4h; The yield of carbonic acid two (different tridecanol base) ester is 84%;
(D) prepare carbonic acid polyol ester: will after methylcarbonate and tetramethylolmethane mixing, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurizeed, carry out transesterification reaction, make carbonic acid two (tetramethylolmethane) ester, wherein the mol ratio of methylcarbonate and tetramethylolmethane is 1:4, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:2, the temperature of controlling described transesterification reaction is 240 ℃, absolute pressure is 8MPa, and the reaction times is 2h; The yield of carbonic acid two (tetramethylolmethane) ester is 76%;
(E) carbonic acid straight chain alcohol ester 10kg, carbonic acid side chain alcohol ester 20kg, carbonic acid polyol ester 50kg, lubricating oil conventional additives 3kg carries out mix and blend and obtains lubricant;
(F) detect the performance index of lubricating oil, performance index parameter is as follows: kinematic viscosity (100 ℃), 13.00mm
2/ s, kinematic viscosity (40 ℃), 76.0mm
2/ s, viscosity index 146, brookfield viscosity (18 ℃) 4280cPs, low-temperature dynamic viscosity (20 ℃) 3260mPa.s, low-temperature dynamic viscosity (25 ℃) 6238mPa.s, pour point-29 ℃, 235 ℃ of flash-points, corrosion test (No. 15 rod iron A methods) is rustless after detecting, and seal compatibility energy index SH/T0305 is 4, all detects qualified packing afterwards and gets product.
Embodiment 6
The preparation method of lubricating oil is as follows:
(A) prepare catalyst for ester exchange reaction: salt of wormwood and lanthanum nitrate are dissolved in distilled water, make metal-mixed solution of rare earth of 1mol/L; Above-mentioned mixing solutions be impregnated in after activated carbon granule 24h, in 120 ℃ of dry 12h, again in 500 ℃ of roasting 3h, pulverize, sieve 20-40 order, make metal-rare earth loaded catalyzer, wherein in metal-rare earth loaded catalyzer, the mol ratio of potassium oxide and lanthanum trioxide is 2:1, and the weight of described gac accounts for 85% of metal-rare earth loaded catalyzer, and the weight proportion of gac and active ingredient (potassium oxide and lanthanum trioxide) is 85:15;
(B) prepare carbonic acid straight chain alcohol ester: after methylcarbonate and positive stearyl alcohol mix, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurization, carry out transesterification reaction, make carbonic acid two (stearyl alcohol base) ester, wherein methylcarbonate is 1:2 with the mol ratio of positive stearyl alcohol, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:1, the temperature of controlling transesterification reaction is 100 ℃, absolute pressure is 8MPa, reaction times is 4h, the yield of carbonic acid two (stearyl alcohol base) ester is 88%,
(C) prepare carbonic acid side chain alcohol ester: will after methylcarbonate and the mixing of different pentadecanol, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurizeed, carry out transesterification reaction, make carbonic acid two (different pentadecanol base) ester, wherein the mol ratio of methylcarbonate and different pentadecanol is 1:5, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:3, the temperature of controlling described transesterification reaction is 210 ℃, absolute pressure is 6MPa, and the reaction times is 4h; The yield of carbonic acid two (different pentadecanol base) ester is 85%;
(D) prepare carbonic acid polyol ester: will after methylcarbonate and TriMethylolPropane(TMP) mixing, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurizeed, carry out transesterification reaction, make carbonic acid two (TriMethylolPropane(TMP)) ester, wherein the mol ratio of methylcarbonate and TriMethylolPropane(TMP) is 1:3, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:5, the temperature of controlling described transesterification reaction is 280 ℃, absolute pressure is 4MPa, and the reaction times is 8h; The yield of carbonic acid two (TriMethylolPropane(TMP)) ester is 75%;
(E) carbonic acid straight chain alcohol ester 10kg, carbonic acid side chain alcohol ester 20kg, carbonic acid polyol ester 50kg, lubricating oil conventional additives 3kg carries out mix and blend and obtains lubricant;
(F) detect the performance index of lubricating oil, performance index parameter is as follows: kinematic viscosity (100 ℃), 13.00mm
2/ s, kinematic viscosity (40 ℃), 76.0mm
2/ s, viscosity index 146, brookfield viscosity (18 ℃) 4280cPs, low-temperature dynamic viscosity (20 ℃) 3260mPa.s, low-temperature dynamic viscosity (25 ℃) 6238mPa.s, pour point-29 ℃, 235 ℃ of flash-points, corrosion test (No. 15 rod iron A methods) is rustless after detecting, and seal compatibility energy index SH/T0305 is 4, all detects qualified packing afterwards and gets product.
Embodiment 7
The preparation method of lubricating oil is as follows:
(A) prepare catalyst for ester exchange reaction: magnesiumcarbonate and lanthanum nitrate are dissolved in distilled water, make metal-mixed solution of rare earth of 1mol/L; Above-mentioned mixing solutions be impregnated in to TiO
2after particle 24h, in 120 ℃ of dry 12h, then in 500 ℃ of roasting 3h, pulverizing, screening 20-40 order, make metal-rare earth loaded catalyzer, and wherein in metal-rare earth loaded catalyzer, the mol ratio of magnesium oxide and lanthanum trioxide is 8:1, described TiO
2weight account for 90% of metal-rare earth loaded catalyzer, i.e. TiO
2with the weight proportion of active ingredient (magnesium oxide and lanthanum trioxide) be 90:10;
(B) prepare carbonic acid straight chain alcohol ester: after methylcarbonate and positive hexadecanol mix, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurization, carry out transesterification reaction, make carbonic acid two (hexadecanol base) ester, wherein methylcarbonate is 1:5 with the mol ratio of positive hexadecanol, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:3, the temperature of controlling transesterification reaction is 130 ℃, absolute pressure is 6MPa, reaction times is 10h, the yield of carbonic acid two (hexadecanol base) ester is 93%,
(C) prepare carbonic acid side chain alcohol ester: will after methylcarbonate and i-octadecanol mixing, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurizeed, carry out transesterification reaction, make carbonic acid two (i-octadecanol base) ester, wherein the mol ratio of methylcarbonate and i-octadecanol is 1:4, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:4, the temperature of controlling described transesterification reaction is 240 ℃, absolute pressure is 8MPa, and the reaction times is 6h; The yield of carbonic acid two (i-octadecanol base) ester is 90%;
(D) prepare carbonic acid polyol ester: will after methylcarbonate and the mixing of neopentyl ethylene glycol, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurization, carry out transesterification reaction, make carbonic acid two (neopentyl ethylene glycol) ester, wherein the mol ratio of methylcarbonate and neopentyl ethylene glycol is 1:4, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:3, the temperature of controlling described transesterification reaction is 260 ℃, absolute pressure is 8MPa, reaction times is 2h, the yield of carbonic acid two (neopentyl ethylene glycol) ester is 80%,
(E) carbonic acid straight chain alcohol ester 20kg, carbonic acid side chain alcohol ester 30kg, carbonic acid polyol ester 50kg, lubricating oil conventional additives 3kg carries out mix and blend and obtains lubricant;
(F) detect the performance index of lubricating oil, performance index parameter is as follows: kinematic viscosity (100 ℃), 13.00mm
2/ s, kinematic viscosity (40 ℃), 75.0mm
2/ s, viscosity index 145, brookfield viscosity (18 ℃) 4270cPs, low-temperature dynamic viscosity (20 ℃) 3270mPa.s, low-temperature dynamic viscosity (25 ℃) 6238mPa.s, pour point-27 ℃, 234 ℃ of flash-points, corrosion test (No. 15 rod iron A methods) is rustless after detecting, and seal compatibility energy index SH/T0305 is 4, all detects qualified packing afterwards and gets product.
Embodiment 8
The preparation method of lubricating oil is as follows:
(A) prepare catalyst for ester exchange reaction: sodium carbonate and lanthanum nitrate are dissolved in distilled water, make metal-mixed solution of rare earth of 1mol/L; Above-mentioned mixing solutions be impregnated in to Al
2o
3after particle 24h, in 120 ℃ of dry 12h, then in 500 ℃ of roasting 3h, pulverizing, screening 20-40 order, make metal-rare earth loaded catalyzer, and wherein in metal-rare earth loaded catalyzer, the mol ratio of sodium oxide and lanthanum trioxide is 6:1, described Al
2o
3weight account for 80% of metal-rare earth loaded catalyzer, i.e. Al
2o
3with the weight proportion of active ingredient (sodium oxide and lanthanum trioxide) be 80:20;
(B) prepare carbonic acid straight chain alcohol ester: after methylcarbonate and positive tridecanol mix, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurization, carry out transesterification reaction, make carbonic acid two (tridecanol base) ester, wherein methylcarbonate is 1:3 with the mol ratio of positive tridecanol, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:0.5, the temperature of controlling transesterification reaction is 180 ℃, absolute pressure is 10MPa, reaction times is 6h, the yield of carbonic acid two (tridecanol base) ester is 90%,
(C) prepare carbonic acid side chain alcohol ester: will after methylcarbonate and the mixing of different hexadecanol, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurizeed, carry out transesterification reaction, make carbonic acid two (different hexadecanol base) ester, wherein the mol ratio of methylcarbonate and different hexadecanol is 1:5, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:2, the temperature of controlling described transesterification reaction is 260 ℃, absolute pressure is 4MPa, and the reaction times is 4h; The yield of carbonic acid two (different hexadecanol base) ester is 88%;
(D) prepare carbonic acid polyol ester: will after methylcarbonate and tetramethylolmethane mixing, join transesterification reactor, in reactor, add above-mentioned metal-rare earth loaded catalyzer again, after mixing, reactor is heated, pressurizeed, carry out transesterification reaction, make carbonic acid two (tetramethylolmethane) ester, wherein the mol ratio of methylcarbonate and tetramethylolmethane is 1:2, the weight proportion of methylcarbonate and metal-rare earth loaded catalyzer is 100:4, the temperature of controlling described transesterification reaction is 300 ℃, absolute pressure is 6MPa, and the reaction times is 4h; The yield of carbonic acid two (tetramethylolmethane) ester is 78%;
(E) carbonic acid straight chain alcohol ester 10kg, carbonic acid side chain alcohol ester 20kg, carbonic acid polyol ester 20kg, lubricating oil conventional additives 2kg carries out mix and blend and obtains lubricant;
(F) detect the performance index of lubricating oil, performance index parameter is as follows: kinematic viscosity (100 ℃), 13.00mm
2/ s, kinematic viscosity (40 ℃), 76.0mm
2/ s, viscosity index 146, brookfield viscosity (18 ℃) 4280cPs, low-temperature dynamic viscosity (20 ℃) 3260mPa.s, low-temperature dynamic viscosity (25 ℃) 6238mPa.s, pour point-29 ℃, 235 ℃ of flash-points, corrosion test (No. 15 rod iron A methods) is rustless after detecting, and seal compatibility energy index SH/T0305 is 4, all detects qualified packing afterwards and gets product.
Experimental example 1
By comparative example 1: John deer oil and fat chemical company limited product standard number is the hydraulic pressure of DB37/T1321-2009, transmission dual-purpose type oil and comparative example 2: product standard is number for the transmission of JB/T7282-2004, hydraulic pressure, braking three use performance perameter oily and embodiment of the present invention 1-8 contrast, as shown in the table:
The performance index of table 1 comparative example lubricating oil
As can be seen from Table 1, comparative example and embodiment of the present invention 1-8 are compared from kinematic viscosity and the flash-point of 100 ℃, the kinematic viscosity of the lubricating oil of the embodiment of the present invention is higher, substantially in 11 left and right, two kinds of oil of comparative example are because viscosity is lower, the lower scope of application of flash-point is also narrow, and the lubricating oil scope of application of the embodiment of the present invention is wide, both can be used for hydraulic pressure, transmission, braking, gear, also can be used for the engine on automobile, and not only high temperature viscosity is good, the low temperature viscosity data of embodiment 1-8, also can find out the lubricating oil low temperature performance excellent of the embodiment of the present invention, pour point is low, these performances all existing lubricating oil do not reach.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a lubricating oil, is characterized in that, its starting material comprise following component according to the mass fraction: carbonic acid alcohol ester 50-150 part, lubricating oil conventional additives 2-5 part; Wherein said carbonic acid alcohol ester comprises one or more in carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester and carbonic acid polyol ester;
One or both and the straight chain alcohol of described carbonic acid straight chain alcohol ester in methylcarbonate and NSC 11801 carries out transesterification reaction gained;
One or both and the branched-chain alcoho of described carbonic acid side chain alcohol ester in methylcarbonate and NSC 11801 carries out transesterification reaction gained;
One or both and the polyvalent alcohol of described carbonic acid polyol ester in methylcarbonate and NSC 11801 carries out transesterification reaction gained.
2. a kind of lubricating oil according to claim 1, it is characterized in that, the starting material of described lubricating oil comprise following component according to the mass fraction: 10～20 parts of carbonic acid straight chain alcohol esters, 20～70 parts of carbonic acid side chain alcohol esters, 20～70 parts of carbonic acid polyol esters, 2～3 parts of lubricating oil conventional additives.
3. a kind of lubricating oil according to claim 2, it is characterized in that, its starting material comprise following component according to the mass fraction: 10～20 parts of carbonic acid straight chain alcohol esters, 20～30 parts of carbonic acid side chain alcohol esters, 50～70 parts of carbonic acid polyol esters, 2～3 parts of lubricating oil conventional additives.
4. a kind of lubricating oil according to claim 2, it is characterized in that, its starting material comprise following component according to the mass fraction: 10～20 parts of carbonic acid straight chain alcohol esters, 50～70 parts of carbonic acid side chain alcohol esters, 20～30 parts of carbonic acid polyol esters, 2～3 parts of lubricating oil conventional additives.
5. according to a kind of lubricating oil described in claim 1-4 any one, it is characterized in that, the carbonatoms of described carbonic acid straight chain alcohol is 12～18.
6. according to a kind of lubricating oil described in claim 1-4 any one, it is characterized in that, the carbonatoms of described carbonic acid branched-chain alcoho is 12～18.
7. according to a kind of lubricating oil described in claim 1-4 any one, it is characterized in that, described carbonic acid polyvalent alcohol is one or more in tetramethylolmethane, TriMethylolPropane(TMP) and neopentyl ethylene glycol.
8. according to a kind of lubricating oil described in claim 1-4 any one, it is characterized in that, the performance index of described lubricating oil are as follows: the kinematic viscosity under 40 ℃ of conditions is 74～76mm
2/ s, the kinematic viscosity under 100 ℃ of conditions is 10～13mm
2/ s, pour point is-25～-29 ℃.
9. the preparation method of a kind of lubricating oil described in claim 1-8 any one, is characterized in that, comprises the steps:
Measure according to the mass fraction starting material;
Described starting material mixing and stirring is obtained to described lubricating oil;
Described lubricating oil property indices is detected;
Detecting qualified rear packing gets product.
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| CN201410414419.1A CN104152212A (en) | 2014-08-21 | 2014-08-21 | Lubricant and preparation method thereof |
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| CN201410414419.1A CN104152212A (en) | 2014-08-21 | 2014-08-21 | Lubricant and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479825A (en) * | 2014-12-15 | 2015-04-01 | 南宁飞日润滑油有限公司 | Environment-friendly hydraulic-transmission-brake oil for hydraulic, transmission and brake device systems |
| CN110846102A (en) * | 2019-11-28 | 2020-02-28 | 徐州金固新材料科技有限公司 | Preparation formula and preparation method of hydroxyl silicate containing rare earth cerium element |
| CN111171892A (en) * | 2018-11-09 | 2020-05-19 | 百达精密化学股份有限公司 | Base oil and lubricating oil |
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| CN1083856A (en) * | 1992-08-28 | 1994-03-16 | 亨凯尔公司 | Biodegradable two-cycle engine oil compositions and eater base stocks |
| CN102796589A (en) * | 2012-07-24 | 2012-11-28 | 北京金骄生物质化工有限公司 | Environment-friendly synthesized lubricant and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1083856A (en) * | 1992-08-28 | 1994-03-16 | 亨凯尔公司 | Biodegradable two-cycle engine oil compositions and eater base stocks |
| CN102796589A (en) * | 2012-07-24 | 2012-11-28 | 北京金骄生物质化工有限公司 | Environment-friendly synthesized lubricant and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479825A (en) * | 2014-12-15 | 2015-04-01 | 南宁飞日润滑油有限公司 | Environment-friendly hydraulic-transmission-brake oil for hydraulic, transmission and brake device systems |
| CN111171892A (en) * | 2018-11-09 | 2020-05-19 | 百达精密化学股份有限公司 | Base oil and lubricating oil |
| CN111171892B (en) * | 2018-11-09 | 2022-02-18 | 百达精密化学股份有限公司 | Base oil and lubricating oil |
| CN110846102A (en) * | 2019-11-28 | 2020-02-28 | 徐州金固新材料科技有限公司 | Preparation formula and preparation method of hydroxyl silicate containing rare earth cerium element |
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