CN102796589A - Environment-friendly synthesized lubricant and preparation method thereof - Google Patents
Environment-friendly synthesized lubricant and preparation method thereof Download PDFInfo
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- CN102796589A CN102796589A CN2012102585190A CN201210258519A CN102796589A CN 102796589 A CN102796589 A CN 102796589A CN 2012102585190 A CN2012102585190 A CN 2012102585190A CN 201210258519 A CN201210258519 A CN 201210258519A CN 102796589 A CN102796589 A CN 102796589A
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Abstract
The invention discloses an environment-friendly synthesized lubricant, which comprises one or more than one of carbonated straight chain alcohol ester, carbonated branch chain alcohol ester and carbonated polyol ester and is prepared by an ester exchange reaction of dimethyl carbonate or ethylene carbonate and straight chain alcohol, branch chain alcohol and polyol. The environment-friendly synthesized lubricant is toxin-free, biodegradable and has the advantages of low friction resistance, good abrasion resistance, good oxidation resistance, high thermal stability and good compatibility with rubber seal materials, particularly has high viscosity and wide viscosity range, and is quite applicable to high-load high-temperature lubrication systems such as a gear box, a transmission case and a high-power internal combustion engine, which cannot be satisfied by common lubricants.
Description
Technical field
The present invention relates to a kind of lubricating oil, particularly relate to a kind of environmental friendliness ucon 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 effects such as lubricated, cooling, antirust, cleaning, sealing and buffering, can be divided into natural fats and oils (being the animal and plant greases), mineral based lubricating oil and ucon oil according to its source and composition.The animal and plant grease just was used as lubricant with the load that lightens one's labor before thousands of years; It has good lubricating property and load bearing capacity; But be prone to oxidation, facile hydrolysis, be prone to thermolysis, low temperature flowability is relatively poor, can not satisfy fast-developing modern mechanical industrial requirement.MO is refined by crude oil and forms, and chemical ingredients 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 received people's attention with its good lubricating property and higher heat-resistant quality.Lubricating oil in esters generally is 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 generally is the 2-ethylhexyl ester of hexanodioic acid, nonane diacid or sebacic acid, the different C of dodecanedioic acid
8-13Alcohol esters etc., it can use in wide temperature range, pour point is low, low-temperature performance and lubricity are good, but is prone to reduce the abrasion resistance of anti-wear agent, therefore need use with the anti-wear agent coupling.Polyol ester (being neopentyl polyol ester) is to be formed by polyvalent alcohol with neo-pentyl and unary fatty acid esterification, 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 satisfy some special request for utilizations, but all exist certain defective separately.Therefore mixing various oil products becomes and makes lubricating oil have the more approach of excellent comprehensive performances to learn from other's strong points to offset one's weaknesses and to seek novel ucon oil.Like publication number is that the patent of invention of CN102300966A discloses a kind of oil based on polyol ester; It can be obtained by renewable resources; Can be used for being used as lubrication base thing or slip additive in oil and the industrial lubricants of hydraulic pressure or transmission; It has higher viscosity index, but the kinematic viscosity under 100 ℃ is lower.
Summary of the invention
Primary and foremost purpose of the present invention is to the problem that above-mentioned prior art exists wide environmental friendliness ucon oil of a kind of modest viscosity and range of viscosities and preparation method thereof to be provided; Ucon oil of the present invention is nontoxic, biodegradable, friction resistance is low, oxidation and heat-resistant quality are good; Itself and rubber packing material compatibleness are good and resistance to wear in addition, have wide range of applications.
In order to achieve the above object, one aspect of the present invention provides a kind of environmental friendliness ucon oil, and its component comprises one or more in carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester, the carbonic acid polyol ester.
Wherein, said carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester, carbonic acid polyol ester are respectively methylcarbonate or NSC 11801 and straight chain alcohol, branched-chain alcoho, polyvalent alcohol and carry out transesterification reaction and make.
Particularly, the molecular formula of said carbonic acid straight chain alcohol ester is R
1OCOOR
2, R wherein
1, R
2Be C
12-C
18Straight-chain alkyl is preferably straight chained alkyl; The molecular formula of said carbonic acid side chain alcohol ester is R
3OCOOR
4, R wherein
3, R
4Be C
12-C
18Branched hydrocarbyl is preferably branched-chain alkyl; The molecular formula of said carbonic acid polyol ester is R
5OCOOR
6, R wherein
5, R
6For tetramethylolmethane, TriMethylolPropane(TMP) or neopentyl terepthaloyl moietie are sloughed the group that forms behind the alcoholic extract hydroxyl group.
Especially; Said methylcarbonate, NSC 11801 can carry out mass preparation with biomass material through following mode: at first sugar crop such as biomass material such as sugarcane, beet, sweet sorghum and cassava, yam, corn and other starches crop generate ethanol through direct fermentation; Ethanol generates ethene after dewatering; Ethene generates oxyethane after oxidation; Oxyethane and carbon dioxide reaction can generate NSC 11801, and NSC 11801 carries out transesterification reaction with methyl alcohol again and promptly makes methylcarbonate.
Wherein, environmental friendliness ucon oil of the present invention is during as automobile oil, and the quality percentage composition of its each component is respectively: carbonic acid straight chain alcohol ester 10-20%, carbonic acid side chain alcohol ester 20-30%, carbonic acid polyol ester 50-70%; Carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester and carbonic acid polyol ester in said each component can be single component, also can be multiple carbonic acid alcohol ester mixture of ingredients.
Particularly; Said automobile oil mainly refers to be used for the lubricating oil product of automobile and motorcycle, comprises that engine oil, hydraulic transmission oil, gear oil (manually ripple case with), brake solution, water tank and cooling system are oily with oil, automatic ripple case, brake and clutch system use wet goods.
Wherein, environmental friendliness ucon oil of the present invention is during as industrial lubricant, and the quality percentage composition of its each component is respectively: carbonic acid straight chain alcohol ester 10-20%, carbonic acid side chain alcohol ester 50-70%, carbonic acid polyol ester 20-30%; Carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester and carbonic acid polyol ester in said each component can be single component, also can be multiple carbonic acid alcohol ester mixture of ingredients.
Particularly, said industrial lubricant mainly refers to be used for the lubricating oil on the millwork equipment, comprises mold oil, ROLLING OIL, machining oil, turbine oil, spindle oil, circulation wet goods.
Environmental friendliness ucon oil of the present invention, also can be in harmonious proportion with other lubricating oil and use as automobile oil or the industrial lubricant except that directly.
Particularly, the viscosity of environmental friendliness ucon oil of the present invention is high, and its kinematic viscosity under 40 ℃ is 13-28mm
2/ s especially can be used for high loading, high temperature lubricating system that plain oil can't satisfy, like wheel box, transmission case, heavy duty etc.
Further aspect of the present invention provides a kind of preparation method of environmental friendliness ucon oil, comprises the steps:
A) methylcarbonate or NSC 11801 and straight chain alcohol are carried out transesterification reaction and make carbonic acid straight chain alcohol ester;
B) methylcarbonate or NSC 11801 and branched-chain alcoho are carried out transesterification reaction and make carbonic acid side chain alcohol ester;
C) methylcarbonate or NSC 11801 and polyvalent alcohol are carried out transesterification reaction and make the carbonic acid polyol ester;
D) in carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester and the carbonic acid polyol ester one or more are mixed, make environmentally friendly ucon oil.
Wherein, the carbonatoms of said straight chain alcohol is 12-18, and the carbonatoms of said branched-chain alcoho is 12-18, and said polyvalent alcohol is an amyl-based polyol, is selected from tetramethylolmethane, TriMethylolPropane(TMP) or neopentyl terepthaloyl moietie.
Particularly, said transesterification reaction is carried out under the effect of metal-rare earth loaded catalyzer; Said supported catalyst refers to catalytic active component and is supported on the carrier surface, and said carrier is mainly used in the support active ingredient, make catalyzer have specific physical behavior, and carrier itself does not generally have catalytic activity.Carrier commonly used has alumina supporter, silica-gel carrier, absorbent charcoal carrier and some natural product such as float stone, zeyssatite etc.
Metal according to the invention-rare earth loaded catalyzer comprises active ingredient and carrier, and the weight proportion of wherein said active constituent and carrier is (10-20): (80-90); Said active ingredient comprises MOX and rare earth oxide, and wherein the mole proportioning of MOX and rare earth oxide is 2-8:1.
Particularly, said MOX is selected from alkalimetal oxide or alkaline earth metal oxide; Said basic metal is selected from one or more in sodium (Na), potassium (K), rubidium (Rb), the caesium (Cs), is preferably sodium and potassium; Said earth alkali metal is selected from one or more in magnesium (Mg), the calcium (Ca), is preferably magnesium; Said rare earth oxide is selected from cerium oxide (CeO
2), lanthanum trioxide (La
2O
3) in one or more; Said carrier is selected from Al
2O
3, C, TiO
2In one or more.
Especially, the weight proportion of methylcarbonate or NSC 11801 and metal-rare earth loaded catalyzer is 100:0.5-5, is preferably 100:1-3, further is preferably 100:2.
Wherein, the mol ratio of said methylcarbonate or NSC 11801 and straight chain alcohol is 1:2-5, and the mol ratio of said methylcarbonate or NSC 11801 and branched-chain alcoho is 1:2-5, and the mol ratio of said methylcarbonate or NSC 11801 and polyvalent alcohol is 1:2-5.
Particularly, the temperature of said transesterification reaction is 100-300 ℃, is preferably 150-250 ℃, further is preferably 240 ℃; Absolute pressure is 4-10MPa, is preferably 6-8MPa; Reaction times is 2-10 hour.
Compared with prior art, the present invention has the following advantages:
1, the environmentally friendly ucon oil of the present invention prepare raw material can be a large amount of through biomass resource, economical, prepare effectively; Be environmental protection and reproducible organism-based raw material; Not only need not rely on petroleum resources; But also can utilize biomass resource fully, have great economic worth and social benefit;
2, simple, the easy handling of preparing method's technology of the present invention, the catalyst efficiency that adopts in the transesterification reaction is high, and speed of reaction is fast, and product yield is high, helps large-scale industrial production;
3, environmental friendliness ucon oil of the present invention is nontoxic, biodegradable, range of viscosities is wide, friction resistance is low, oxidation and heat-resistant quality are good; Itself and rubber packing material compatibleness are good and resistance to wear in addition; 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;
4, environmental friendliness ucon oil reasonable component formula of the present invention can satisfy various different purposes through the proportioning of adjusting each component; Particularly its viscosity is high, especially can be used for high loading, high temperature lubricating system that plain oil can't satisfy, like wheel box, transmission case, heavy duty etc.
Embodiment
Further describe the present invention below in conjunction with specific embodiment, advantage of the present invention and characteristics will be more clear along with description.But these embodiment only are exemplary, scope of the present invention are not constituted any restriction.It will be understood by those skilled in the art that and down can make amendment with form or replace without departing from the spirit and scope of the present invention, but these modifications and replacing all fall in protection scope of the present invention the details of technical scheme of the present invention.
Embodiment 1
1, preparation metal-rare earth loaded catalyzer
At normal temperatures yellow soda ash and cerous nitrate are dissolved in the zero(ppm) water, make metal-mixed solution of rare earth of 1mol/L; Above-mentioned mixing solutions impregnated in Al
2O
3Behind the particle 24 hours,,, pulverize again in 500 ℃ of roastings 3 hours in 120 ℃ of dryings 12 hours, screening 20-40 order, make metal-rare earth loaded catalyzer, wherein the mole proportioning of sodium oxide and cerium oxide is 4:1 in metal-rare earth loaded catalyzer, said 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;
2, preparation carbonic acid straight chain alcohol ester
With joining transesterification reactor after methylcarbonate and the n-dodecanol mixing, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum is heated, pressurizeed, 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, and the temperature of controlling said transesterification reaction is 160 ℃, and absolute pressure is 8MPa; Reaction times is 2h, and the yield of carbonic acid two (lauryl alcohol base) ester is 91%;
3, preparation carbonic acid side chain alcohol ester
With joining transesterification reactor after methylcarbonate and the mixing of different tridecanol, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum 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 said transesterification reaction is 190 ℃, and absolute pressure is 8MPa, and the reaction times is 4h; The yield of carbonic acid two (different tridecanol base) ester is 84%;
4, preparation carbonic acid polyol ester
With joining transesterification reactor after methylcarbonate and the tetramethylolmethane mixing, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum 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 said transesterification reaction is 240 ℃, and absolute pressure is 8MPa, and the reaction times is 2h; The yield of carbonic acid two (tetramethylolmethane) ester is 76%;
5, preparation ucon oil
Is that 1:3:6 mixes with carbonic acid two (lauryl alcohol base) ester, carbonic acid two (different tridecanol base) ester and carbonic acid two (tetramethylolmethane) ester of above-mentioned preparation according to weight proportion, promptly makes ucon oil of the present invention, and its quality examination result sees table 1.
Embodiment 2
1, preparation metal-rare earth loaded catalyzer
At normal temperatures salt of wormwood and Lanthanum trinitrate are dissolved in the zero(ppm) water, make metal-mixed solution of rare earth of 1mol/L; Above-mentioned mixing solutions impregnated in activated carbon granule after 24 hours; In 120 ℃ of dryings 12 hours, again in 500 ℃ of roastings 3 hours, pulverize, screening 20-40 order; Make metal-rare earth loaded catalyzer; Wherein the mole proportioning of potassium oxide and lanthanum trioxide is 2:1 in metal-rare earth loaded catalyzer, and the weight of said gac accounts for 85% of metal-rare earth loaded catalyzer, and promptly the weight proportion of gac and active ingredient (potassium oxide and lanthanum trioxide) is 85:15;
2, preparation carbonic acid straight chain alcohol ester
With joining transesterification reactor after methylcarbonate and the positive stearyl alcohol mixing, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum is heated, pressurizeed, 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, and the temperature of controlling said transesterification reaction is 100 ℃, and absolute pressure is 8MPa; Reaction times is 4h, and the yield of carbonic acid two (stearyl alcohol base) ester is 88%;
3, preparation carbonic acid side chain alcohol ester
With joining transesterification reactor after methylcarbonate and the mixing of different pentadecanol, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum 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 said transesterification reaction is 210 ℃, and absolute pressure is 6MPa, and the reaction times is 4h; The yield of carbonic acid two (different pentadecanol base) ester is 85%;
4, preparation carbonic acid polyol ester
With joining transesterification reactor after methylcarbonate and the TriMethylolPropane(TMP) mixing, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum 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 said transesterification reaction is 280 ℃, and absolute pressure is 4MPa, and the reaction times is 8h; The yield of carbonic acid two (TriMethylolPropane(TMP)) ester is 75%;
5, preparation ucon oil
Is that 1:2:7 mixes with carbonic acid two (stearyl alcohol base) ester, carbonic acid two (different pentadecanol base) ester and carbonic acid two (TriMethylolPropane(TMP)) ester of above-mentioned preparation according to weight proportion, promptly makes ucon oil of the present invention, and its quality examination result sees table 1.
Embodiment 3
1, preparation metal-rare earth loaded catalyzer
At normal temperatures magnesium nitrate and Lanthanum trinitrate are dissolved in the zero(ppm) water, make metal-mixed solution of rare earth of 1mol/L; Above-mentioned mixing solutions impregnated in TiO
2Behind the particle 24 hours,,, pulverize again in 500 ℃ of roastings 3 hours in 120 ℃ of dryings 12 hours, screening 20-40 order, make metal-rare earth loaded catalyzer, wherein the mole proportioning of Natural manganese dioxide and lanthanum trioxide is 8:1 in metal-rare earth loaded catalyzer, said TiO
2Weight account for 90% of metal-rare earth loaded catalyzer, i.e. TiO
2With the weight proportion of active ingredient (Natural manganese dioxide and lanthanum trioxide) be 90:10;
2, preparation carbonic acid straight chain alcohol ester
With joining transesterification reactor after NSC 11801 and the positive hexadecanol mixing, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum is heated, pressurizeed, carry out transesterification reaction, make carbonic acid two (hexadecanol base) ester; Wherein NSC 11801 is 1:5 with the mol ratio of positive hexadecanol; The weight proportion of NSC 11801 and metal-rare earth loaded catalyzer is 100:3, and the temperature of controlling said transesterification reaction is 130 ℃, and absolute pressure is 6MPa; Reaction times is 10h, and the yield of carbonic acid two (hexadecanol base) ester is 93%;
3, preparation carbonic acid side chain alcohol ester
With joining transesterification reactor after NSC 11801 and the i-octadecanol mixing, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum is heated, pressurizeed; Carry out transesterification reaction, make carbonic acid two (i-octadecanol base) ester, wherein the mol ratio of NSC 11801 and i-octadecanol is 1:4; The weight proportion of NSC 11801 and metal-rare earth loaded catalyzer is 100:4; The temperature of controlling said transesterification reaction is 240 ℃, and absolute pressure is 8MPa, and the reaction times is 6h; The yield of carbonic acid two (i-octadecanol base) ester is 90%;
4, preparation carbonic acid polyol ester
With joining transesterification reactor after NSC 11801 and the mixing of neopentyl terepthaloyl moietie, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum is heated, pressurizeed; Carry out transesterification reaction, make carbonic acid two (neopentyl terepthaloyl moietie) ester, wherein the mol ratio of NSC 11801 and neopentyl terepthaloyl moietie is 1:4; The weight proportion of NSC 11801 and metal-rare earth loaded catalyzer is 100:3; The temperature of controlling said transesterification reaction is 260 ℃, and absolute pressure is 8MPa, and the reaction times is 2h; The yield of carbonic acid two (neopentyl terepthaloyl moietie) ester is 80%;
5, preparation ucon oil
Is that 2:6:2 mixes with carbonic acid two (hexadecanol base) ester, carbonic acid two (i-octadecanol base) ester and carbonic acid two (neopentyl terepthaloyl moietie) ester of above-mentioned preparation according to weight proportion; Promptly make ucon oil of the present invention, its quality examination result sees table 1.
Embodiment 4
1, preparation metal-rare earth loaded catalyzer
At normal temperatures SODIUMNITRATE and Lanthanum trinitrate are dissolved in the zero(ppm) water, make metal-mixed solution of rare earth of 1mol/L; Above-mentioned mixing solutions impregnated in Al
2O
3Behind the particle 24 hours,,, pulverize again in 500 ℃ of roastings 3 hours in 120 ℃ of dryings 12 hours, screening 20-40 order, make metal-rare earth loaded catalyzer, wherein the mole proportioning of sodium oxide and lanthanum trioxide is 6:1 in metal-rare earth loaded catalyzer, said 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;
2, preparation carbonic acid straight chain alcohol ester
With joining transesterification reactor after methylcarbonate and the positive tridecanol mixing, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum is heated, pressurizeed, 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, and the temperature of controlling said transesterification reaction is 180 ℃, and absolute pressure is 10MPa; Reaction times is 6h, and the yield of carbonic acid two (tridecanol base) ester is 90%;
3, preparation carbonic acid side chain alcohol ester
With joining transesterification reactor after methylcarbonate and the mixing of different hexadecanol, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum 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 said transesterification reaction is 260 ℃, and absolute pressure is 4MPa, and the reaction times is 4h; The yield of carbonic acid two (different hexadecanol base) ester is 88%;
4, preparation carbonic acid polyol ester
With joining transesterification reactor after methylcarbonate and the tetramethylolmethane mixing, in reactor drum, add above-mentioned metal-rare earth loaded catalyzer again, after mixing; Reactor drum 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 said transesterification reaction is 300 ℃, and absolute pressure is 6MPa, and the reaction times is 4h; The yield of carbonic acid two (tetramethylolmethane) ester is 78%;
5, preparation ucon oil
Is that 1:6:3 mixes with carbonic acid two (tridecanol base) ester, carbonic acid two (different hexadecanol base) ester and carbonic acid two (tetramethylolmethane) ester of above-mentioned preparation according to weight proportion, promptly makes ucon oil of the present invention, and its quality examination result sees table 1.
Table 1 environmental friendliness ucon oil of the present invention quality examination result
| Index | TP | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Kinematic viscosity (40 ℃, mm 2/s） | GB/T?265 | 24 | 28 | 15 | 18 |
| Pour point (℃) | GB/T?3535 | -26 | -28 | -20 | -23 |
| Flash-point (℃) | GB/T?3536 | 235 | 238 | 228 | 231 |
| Corrosion test (No. 15 rod iron A methods) | GB/T?11143 | Rustless | Rustless | Rustless | Rustless |
| Seal compatibility can index | SH/T?0305 | 4 | 4 | 4 | 4 |
Can know by table 1 result:
The environmental friendliness ucon oil viscosity height of the present invention's preparation, good antirust property, good with the rubber packing material compatibleness especially can be used for high loading, high temperature lubricating system that plain oil can't satisfy, like wheel box, transmission case, heavy duty etc.
Claims (10)
1. environmental friendliness ucon oil, its component comprises one or more in carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester, the carbonic acid polyol ester.
2. environmental friendliness ucon oil as claimed in claim 1 is characterized in that, the molecular formula of said carbonic acid straight chain alcohol ester is R
1OCOOR
2, R wherein
1, R
2Be C
12-C
18Straight-chain alkyl; The molecular formula of said carbonic acid side chain alcohol ester is R
3OCOOR
4, R wherein
3, R
4Be C
12-C
18Branched hydrocarbyl; The molecular formula of said carbonic acid polyol ester is R
5OCOOR
6, R wherein
5, R
6For tetramethylolmethane, TriMethylolPropane(TMP) or neopentyl terepthaloyl moietie are sloughed the group that forms behind the alcoholic extract hydroxyl group.
3. according to claim 1 or claim 2 environmental friendliness ucon oil is characterized in that as automobile oil, wherein the quality percentage composition of each component is respectively: carbonic acid straight chain alcohol ester 10-20%, carbonic acid side chain alcohol ester 20-30%, carbonic acid polyol ester 50-70%.
4. according to claim 1 or claim 2 environmental friendliness ucon oil is characterized in that as industrial lubricant, wherein the quality percentage composition of each component is respectively: carbonic acid straight chain alcohol ester 10-20%, carbonic acid side chain alcohol ester 50-70%, carbonic acid polyol ester 20-30%.
5. according to claim 1 or claim 2 environmental friendliness ucon oil is characterized in that, it is 13-28mm that one or more in said carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester, the carbonic acid polyol ester mix the kinematic viscosity of ucon oil under 40 ℃ that forms
2/ s.
6. the preparation method of an environmental friendliness ucon oil comprises the steps:
A) methylcarbonate or NSC 11801 and straight chain alcohol are carried out transesterification reaction and make carbonic acid straight chain alcohol ester;
B) methylcarbonate or NSC 11801 and branched-chain alcoho are carried out transesterification reaction and make carbonic acid side chain alcohol ester;
C) methylcarbonate or NSC 11801 and polyvalent alcohol are carried out transesterification reaction and make the carbonic acid polyol ester;
D) in carbonic acid straight chain alcohol ester, carbonic acid side chain alcohol ester, the carbonic acid polyol ester one or more are mixed, make environmentally friendly ucon oil.
7. preparation method as claimed in claim 6 is characterized in that, the carbonatoms of said straight chain alcohol is 12-18, and the carbonatoms of said branched-chain alcoho is 12-18, and said polyvalent alcohol is selected from tetramethylolmethane, TriMethylolPropane(TMP) or neopentyl terepthaloyl moietie.
8. like claim 6 or 7 described preparing methods; It is characterized in that; Said transesterification reaction is carried out under the effect of metal-rare earth loaded catalyzer, and wherein said metal-rare earth loaded catalyzer comprises active ingredient and carrier, and the weight proportion of active constituent and carrier is (10-20): (80-90); Said active ingredient comprises MOX and rare earth oxide, and the mole proportioning of said MOX and rare earth oxide is 2-8:1.
9. like claim 6 or 7 described preparing methods; It is characterized in that; The mol ratio of said methylcarbonate or NSC 11801 and straight chain alcohol is 1:2-5; The mol ratio of said methylcarbonate or NSC 11801 and branched-chain alcoho is 1:2-5, and the mol ratio of said methylcarbonate or NSC 11801 and polyvalent alcohol is 1:2-5.
10. preparation method as claimed in claim 8 is characterized in that, the temperature of said transesterification reaction is 100-300 ℃, and absolute pressure is 4-10MPa, and the reaction times is 2-10 hour.
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| CN104152212A (en) * | 2014-08-21 | 2014-11-19 | 赵国辉 | Lubricant and preparation method thereof |
| CN107903987A (en) * | 2017-12-01 | 2018-04-13 | 苏州市宽道模具机械有限公司 | A kind of wear-resistant high temperature resistant lubricating grease and preparation method thereof |
| CN108129250A (en) * | 2017-12-27 | 2018-06-08 | 珠海飞扬新材料股份有限公司 | A kind of method for preparing alpha-olefin with positive configuration carbonic ester cracking |
| CN108727194A (en) * | 2018-05-18 | 2018-11-02 | 中国科学院青岛生物能源与过程研究所 | A kind of method of Biomass Syngas carbonate synthesis dialkyl |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152212A (en) * | 2014-08-21 | 2014-11-19 | 赵国辉 | Lubricant and preparation method thereof |
| CN107903987A (en) * | 2017-12-01 | 2018-04-13 | 苏州市宽道模具机械有限公司 | A kind of wear-resistant high temperature resistant lubricating grease and preparation method thereof |
| CN108129250A (en) * | 2017-12-27 | 2018-06-08 | 珠海飞扬新材料股份有限公司 | A kind of method for preparing alpha-olefin with positive configuration carbonic ester cracking |
| CN108727194A (en) * | 2018-05-18 | 2018-11-02 | 中国科学院青岛生物能源与过程研究所 | A kind of method of Biomass Syngas carbonate synthesis dialkyl |
| CN108727194B (en) * | 2018-05-18 | 2021-03-26 | 中国科学院青岛生物能源与过程研究所 | Method for synthesizing dialkyl carbonate from biomass-based synthesis gas |
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