CN102417846A - Synthesized industrial lubricating oil additive composition - Google Patents
Synthesized industrial lubricating oil additive composition Download PDFInfo
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Abstract
The invention provides a lubricating oil additive composition for industry. The composition comprises (A) at least an antioxidant and antiwear multifunctional additive, (B) at least a high temperature anti-oxidant, (C) at least an antiwear agent containing phosphorus, (D) at least a high temperature detersive, (E) at least an antirust agent, (F) at least a friction modifier agent and (G) at least a deactivator. The composition has characteristics of no active sulfur containing, no smell, environmental protection, energy saving and long usage life. The additive composition can be added into a total synthesis base oil by 0.5-3.0wt% to prepare industrial lubricating oil, such as compressor oil, hydraulic oil, bearing oil, worm gear oil and industrial gear oil, etc.
Description
(1) technical field
The present invention relates to a kind of industrial additive composition for lubricant oil, especially a kind of compositions of additives that is used for compressor oil, hydraulicefficiency oil, bearing oil, worm gear scroll bar oil, the industrial lubricating oil of industrial gear wet goods belongs to the oil dope technical field.
(2) background technology
Industrial lubricating oil mainly comprises compressor oil, hydraulicefficiency oil, bearing oil, worm gear scroll bar oil, industrial gear wet goods, and various industrial lubricating oil use different types of additive compound blending to form respectively.Different industrial lubricating oil is because applying working condition is different, and also inequality to the concrete performance requriements of lubricating oil, the additive of use also is not quite similar.Compressor oil is mainly used in cylinder, piston-ring (or slide plate etc.), bearing, speed-up gears, crank connecting link and crankcase lubrication system of lubricate compressors etc.The performance of compressor oil: suitable viscosity; Good oxidative stability; The proneness of carbon deposit is little; Good resistance to emulsion, non-corrosibility and anti-spumescence.The compressor oil additive mainly uses oxidation inhibitor, antirust, anticorrosive agent, anti-wear agent etc.Hydraulicefficiency oil is as the working medium in the hydraulic power actuating system, has lubricated, cooling and rust inhibition.Usually added petroleum products additives modulation such as wear-resistant and oxidation inhibitor forms by the petroleum oil base oil of deep refining or ucon oil.Be widely used in aspects such as lathe, mine engineering machinery, agricultural machine, casting forging machinery, transportation machinery, Aeronautics and Astronautics.Bearing oil should have good viscosity temperature characteristic, oxidative stability and branch water-based ability, mainly uses oxidation inhibitor, anti-wear agent and demulsifying agent etc.Worm gear scroll bar oil should have good high-temperature thermal oxidation stability, excellent lubricating properties and advantages of high bearing capacity, excellent anti-rotten rust-preventing characteristic, good demulsification performance; Extreme pressure type worm and worm wheel oil is applicable to that the cylinder shape of copper-steel coupling bears vibration and ballistic worm couple are arranged in heavy loading, the transmission; Parts such as gear and straight spur gear lubricated that comprises this equipment, and the lubricating of other mechanical means of work under wet environment.Main extreme pressure anti-wear additives, friction improver, the antirust, anticorrosive agent etc. of using of worm gear scroll bar oil.Industrial gear oil shows performances such as good extreme pressure, wear-resistant, anti-oxidant, emulsion resistance and anti-foam under the harsh working conditions of high temperature, high loading, high pressure water invasion and attack, mainly use additives such as extreme pressure anti-wear additives, antirust, anticorrosive agent.Through domestic and international patent inquiry; Do not find to use a kind of industrial compositions of additives to be used for publication and the data that complete synthesis base oil can prepare compressor oil, hydraulicefficiency oil, bearing oil, worm gear scroll bar oil, the industrial complete synthesis lubricating oil associated viscera of industrial gear wet goods respectively with different dosages; Some external product descriptions have been reported the applicable cases of some composite additives at compressor oil, hydraulicefficiency oil, bearing oil, worm gear scroll bar oil, the industrial lubricating oil of industrial gear wet goods; Major part is used for MO; And cost an arm and a leg, all not by the concrete public reported of forming to industrial recombiner.
(3) summary of the invention
The objective of the invention is: a kind of industrial additive composition for lubricant oil that is applicable to complete synthesis base oil is provided, and this compositions of additives has good extreme pressure anti-wear, thermal oxidation stability, anti-milkiness and anti-bubble property, resistance to rust and corrosion.Be used for complete synthesis base oil and can prepare compressor oil, hydraulicefficiency oil, bearing oil, worm gear scroll bar oil, the complete synthesis industrial lubricating oil of industrial gear wet goods.
The present invention selects the various binder components in the compositions of additives to achieve these goals meticulously, guarantees that lubricating oil that compositions of additives modulates possesses the character of oilgear and bearing simultaneously.Except the performance of considering each component function additive self and the advantage of giving prominence to; Improving performance, antirust, anti-corrosive performance, demulsification performance and anti-bubble performance with antioxidant property, extreme pressure and antiwear behavior, friction simultaneously is that major objective has been investigated the interaction relationship of various additives in the compositions of additives; Strive to find the synergistic effect between the additive; Avoid antagonistic effect, with balance and the unification that reaches whole system.The present invention has reduced the kind of additive through using multifunction additive, has avoided antagonistic effect, and the inner quality of the product of raising provides a kind of excellent property, good economy performance, industrial lubricating oil recombiner that suitability is wide.
Industrial additive composition for lubricant oil of the present invention, the sulphur content of product are 5.0～10.0wt%, and phosphorus content is 2.50～5.00wt%, and nitrogen content is 1.50～4.00wt%.Having good extreme pressure anti-wear, rubbing characteristics, anti-milkiness, anti-bubble property, resistance to rust and corrosion and thermal oxidation stability can; Product adds the complete synthesis type of dose-modulated industrial gear oil with 2.0～3.0wt%; Product adds the complete synthesis wear-resistant type kelmet oil of dose-modulated with 1.5～2.5wt%; Product adds the complete synthesis extreme pressure type of dose-modulated worm gear scroll bar oil with 1.0～2.0wt%; Product adds the complete synthesis type antiwear hydraulic oil of dose-modulated with 0.5～1.5wt%, and product adds the complete synthesis type screw compression of dose-modulated machine oil with 0.3～1.0wt%.It is low that this product adds dosage, and production cost is low, and highly versatile, applied widely has good economic benefits and social benefit.This recombiner compsn allotment is convenient, and excellent property has broad prospect for its application.
Industrial additive composition for lubricant oil of the present invention, it contains: (A) the wear-resistant multifunction additive of at least a antioxygen; (B) at least a high-temperature antioxidant; (C) at least a phosphorous anti-wear agent; (D) at least a high temperature purification agent; (E) at least a rust-preventive agent; (F) at least a friction improver; (G) at least a metal passivator.Said (A) is zinc dialkyl dithiophosphate, or thiocarbamate (salt), or their arbitrary composition, and said compositions of additives contains (A) component 5.0～20.0wt%; Said (B) is dialkyl diphenylamine, or the shielding amphyl, or the mixture of their arbitrary combination, and said compositions of additives contains (B) component 5.0～20.0wt%; Said (C) is acid phosphoric acid ester, or neutral phosphate, or acid phosphorous acid ester, or neutral phosphorous acid ester, or the mixture of their arbitrary combination, and said compositions of additives contains (C) component 20.0～70.0wt%; Said (D) is alkylsalicylate, or the alkyl monosulfide phenates, or the mixture of their arbitrary combination, and said compositions of additives contains (D) component 2.0～10.0wt%; Said (E) is the alkenyl succinic acid ester, or fatty ester, or aliphatic amide, or the mixture of their arbitrary combination, and said compositions of additives contains (E) component 3.0～15.0wt%; Said (F) is boric acid ester, or the boronation fatty ester, or the mixture of their arbitrary combination, and said compositions of additives contains (F) component 5.0～30.0wt%; Said (G) is benzotriazole, or diazosulfide, or the mixture of their arbitrary combination, and said compositions of additives contains (G) component 0～5.0wt%.
Further, industrial lubricating oil recombiner compsn of the present invention, it contains: (A) the wear-resistant multifunction additive of at least a antioxygen; (B) at least a high-temperature antioxidant; (C) at least a phosphorous anti-wear agent; (D) at least a high temperature purification agent; (E) at least a rust-preventive agent; (F) at least a friction improver; (G) at least a metal passivator.
What wherein said (A) component was suitable is the di-n-octyl zinc dithiophosphate, or N, N-di-n-butyl thiocarbamate; Or N; N-di-n-butyl xanthogenaminic acid zinc, or the mixture of their arbitrary combination, the suitable content of component (A) in compositions of additives is 5.0～15.0wt%;
What (B) component was suitable is dinonyldiphenylamine, or contains the ester compound that shields phenol, or the mixture of their arbitrary combination, and the suitable content of component (B) in compositions of additives is 5.0～15.0wt%;
What (C) component was suitable is the acid phosphatase stearyl; Or neutral TRI N BUTYL PHOSPHATE, or acid phosphorous acid dodecyl ester, or neutral tri-n-butylphosphite; Or the mixture of their arbitrary combination, the suitable content of component (C) in compositions of additives is 30.0～70.0wt%;
What (D) component was suitable is the high base number alkylsalicylate, or high base number alkyl monosulfide phenates, or the mixture of their arbitrary combination, and the suitable content of component (D) in compositions of additives is 2.0～8.0wt%;
What (E) component was suitable is the different monooctyl ester of dodecenylsuccinic acid, or the triethanolamine oleate ester, or amino dodecane, or stearylamine, or the mixture of their arbitrary combination, and the suitable content of component (E) in compositions of additives is 3.0～12.0wt%;
What (F) component was suitable is tri-n-butyl borate; Or boric acid three n-octyls, or boric acid three (12) alkyl ester, or boric acid three (18) alkyl ester; Or boronation oleic acid glycol ester; Or boronation oleic acid glycerine ester, or the mixture of their arbitrary combination, the suitable content of component (F) in compositions of additives is 5.0～20.0wt%;
(G) component is 0～4.0wt% than the suitable content in compositions of additives.
Use the synthetic complete synthesis type of compositions of additives of the present invention industrial gear oil, sulphur content 1000～3000ppm, phosphorus content 500～1500ppm, nitrogen content 300～1200ppm; Use the synthetic complete synthesis wear-resistant type kelmet oil of compositions of additives, sulphur content 750～2500ppm, phosphorus content 375～1250ppm, nitrogen content 225～1000ppm; Use the synthetic complete synthesis extreme pressure type worm gear scroll bar oil of compositions of additives, sulphur content 500～2000ppm, phosphorus content 250～1000ppm, nitrogen content 150～800ppm; Use the synthetic complete synthesis type antiwear hydraulic oil of compositions of additives, sulphur content 250～1500ppm, phosphorus content 125～750ppm, nitrogen content 75～600ppm; Use the synthetic complete synthesis type screw compression machine oil of compositions of additives, sulphur content 150～1000ppm, phosphorus content 75～500ppm, nitrogen content 45～400ppm.
Method for making: the preparation method of above-mentioned industrial additive composition for lubricant oil is: needed phosphorous anti-wear agent component (C) and friction improver component (F) add in the enamel blending kettle of belt stirrer in proportion earlier; Secondly add the wear-resistant multifunction additive component of required antioxygen (A), high-temperature antioxidant component (B), high temperature purification agent component (D), rust-preventive agent component (E), metal passivator component (G) in proportion in blending kettle; Under 60～70 ℃; Stirred 4 hours; All dissolve to mixture, and homogeneous transparent.
In order to screen binder component and compositions of additives, the present invention has adopted various TPs to carry out simulation evaluation in the laboratory.Wherein have lubricating oil extreme pressure property assay method (the four-ball tester method, GB/T3142), lubrication oil antiwear performance measurement method (the four-ball tester method, SH/T0189).
After estimating compositions of additives adding base oil; The performance requriements that whether meets various industrial lubricating oil; Carried out petroleum products copper strip test method (GB/T5906 or ASTM D130); Inhibiting MO is rust prevention test method (GB/T11143 or ASTM D665B) in the presence of water; Oil and synthetic liquid water separable performance pipette method (GB/T7305 or ASTM D1401), lubricating oil foam characteristic assay method (GB/T12579 or ISO6247), lubricating oil extreme pressure property assay method (Timken test) is (GB/T11144); Lubricating oil supporting capacity assay method (CL-100) (SH/T0306 or ASTMD5182), lubricating oil oxidation stability assay method (rotary oxygen bomb method) (SH/T0193 or ASTM D2272 or ASTM D2112).
The present invention is a major objective with antioxidant property, extreme pressure and antiwear behavior, friction improvement performance, antirust, anti-corrosive performance, demulsification performance and the anti-bubble performance of compsn; Said composition had do not contain the characteristics of active sulphur, tasteless, environmental protection, energy-conservation, long service life; Interaction relationship to various additives in the compositions of additives is studied; Solved the influence of extreme pressure anti-wear, oxidative stability and the various additive of whole system preferably to whole system antioxidant property; Compositions of additives of the present invention is joined in the complete synthesis base oil by 0.5～3.0wt%, can prepare compressor oil, hydraulicefficiency oil, bearing oil, worm gear scroll bar oil, the industrial lubricating oil of industrial gear wet goods.The extreme pressure and antiwear behavior of synthetic complete synthesis industrial gear oil, antioxidant property, anti-bubble performance and demulsification performance are superior to external reference oil, and cost performance is excellent.
(4) embodiment
Effect of the present invention further specifies through following embodiment.But should understand that following embodiment is not a restriction scope of the present invention, any change that does not exceed design of the present invention and scope is all within scope of the present invention.
Embodiment 1:
Compositions of additives (I), it comprises: 10.0wt% di-n-octyl zinc dithiophosphate (component A); 10.0wt% dinonyldiphenylamine (B component); The acid phosphorous acid dodecyl ester (component C) of 70.0wt%; 2.0wt% high base number alkyl monosulfide phenates (component D); 3.0wt% stearylamine (component E); 5.0wt% boronation oleic acid glycerine ester (component F).Compositions of additives (II), it comprises: 10.0wt% di-n-octyl zinc dithiophosphate (component A); 10.0wt% dinonyldiphenylamine (B component); 70.0wt% acid phosphatase stearyl (component C); 2.0wt% high base number alkyl monosulfide phenates (component D); 3.0wt% stearylamine (component E); 5.0wt% boronation oleic acid glycerine ester (component F).Compositions of additives (III), it comprises: 10.0wt% di-n-octyl zinc dithiophosphate (component A); 10.0wt% dinonyldiphenylamine (B component); The neutral TRI N BUTYL PHOSPHATE (component C) of 70.0wt%; 2.0wt% high base number alkyl monosulfide phenates (component D); 3.0wt% stearylamine (component E); 5.0wt% boronation oleic acid glycerine ester (component F).Compositions of additives (IV), it comprises: 10.0wt% di-n-octyl zinc dithiophosphate (component A); 10.0wt% dinonyldiphenylamine (B component); The neutral tri-n-butylphosphite (component C) of 70.0wt%; 2.0wt% high base number alkyl monosulfide phenates (component D); 3.0wt% stearylamine (component E); 5.0wt% boronation oleic acid glycerine ester (component F).Compsn (I), (II), (III) and (IV) all add in the complete synthesis base oil of PAO10 with 1.0wt% are in its evaluation result tabulation 2.
The complete synthesis base oil character of table 1PAO10
Table 2 compsn (I), (II) (III), (IV) evaluation result
Experimental result shows; The present composition has resistance to rust and corrosion, extreme pressure anti-wear, thermal oxidation stability, resistance to emulsion preferably; Simultaneously; The extreme pressure and antiwear behavior of acid phosphorous acid ester is better than neutrality (Asia) SULPHOSUCCINIC ACID ESTER, and the antioxidant property and the demulsification performance of neutral (Asia) SULPHOSUCCINIC ACID ESTER are superior to acid phosphorous acid ester.
Embodiment 2:
It comprises compositions of additives (V): 15.0wt%N, N-di-n-butyl thiocarbamate (component A); 15.0wt% dinonyldiphenylamine (B component); The acid phosphorous acid dodecyl ester (component C) of 30.0wt%; 4.0wt% high base number alkylsalicylate salt (component D); The different monooctyl ester of 12.0wt% dodecenylsuccinic acid (component E); 20.0wt% boric acid three (18) alkyl ester (component F); 4.0wt% diazosulfide (component G).It comprises compositions of additives (VI): 15.0wt%N, N-di-n-butyl thiocarbamate (component A); 15.0wt% contains the ester compound (B component) that shields phenol; The acid phosphorous acid dodecyl ester (component C) of 30.0wt%; 4.0wt% high base number alkylsalicylate salt (component D); The different monooctyl ester of 12.0wt% dodecenylsuccinic acid (component E); 20.0wt% boric acid three (18) alkyl ester (component F); 4.0wt% diazosulfide (component G).Compsn (V), (VI) all add in the complete synthesis base oil of PAO10 with 2.5wt%, its evaluation result tabulation 3.
Table 3 compsn (V), (VI) evaluation result
Experimental result shows that the ashless oxidation inhibitor of different structure has bigger influence to the antioxidant property of compsn.
Embodiment 3:
Compositions of additives (V) adds in complete synthesis 320 base oils with 2.5wt%, its evaluation result tabulation 4.
Table 4 compsn (V) evaluation result
Experimental result shows that compositions of additives (V) is superior to reference oil with extreme pressure and antiwear behavior, antioxidant property, anti-bubble performance and the demulsification performance that 2.5wt% adds synthetic 320 complete synthesis industrial gear oils in the 320 complete synthesis base oils.
Claims (14)
1. industrial additive composition for lubricant oil is characterized in that it contains:
(A) the wear-resistant multifunction additive of at least a antioxygen is zinc dialkyl dithiophosphate, or thiocarbamate, or thiocarbamate, or their arbitrary composition, and compsn contains component (A) 5.0～20.0wt%,
(B) at least a high-temperature antioxidant is dialkyl diphenylamine, or shielding phenol, or the mixture of their arbitrary combination, and compsn contains component (B) 5.0～20.0wt%,
(C) at least a phosphorous anti-wear agent is acid phosphoric acid ester, or neutral phosphate, or acid phosphorous acid ester, or neutral phosphorous acid ester, or the mixture of their arbitrary combination, and compsn contains component (C) 20.0～70.0wt%,
(D) at least a high temperature purification agent is alkylsalicylate, or the alkyl monosulfide phenates, or the mixture of their arbitrary combination, and compsn contains component (D) 2.0～10.0wt%,
(E) at least a rust-preventive agent is the alkenyl succinic acid ester, or fatty ester, or aliphatic amide, or the mixture of their arbitrary combination, and compsn contains component (E) 3.0～12.0wt%,
(F) at least a friction improver is boric acid ester, or the boronation fatty ester, or the mixture of their arbitrary combination, and compsn contains component (F) 5.0～30.0wt%,
(G) at least a metal passivator is benzotriazole, or diazosulfide, or the mixture of their arbitrary combination, and compsn contains component (G) 0～5.0wt%.
2. industrial additive composition for lubricant oil according to claim 1 is characterized in that (A) component is the di-n-octyl zinc dithiophosphate, or N; N-di-n-butyl thiocarbamate; Or N, N-di-n-butyl xanthogenaminic acid zinc, or the mixture of their arbitrary combination.
3. industrial additive composition for lubricant oil according to claim 1 is characterized in that (B) component is a dinonyldiphenylamine, or contains ester compound that shields phenol or the mixture of their arbitrary combination.
4. industrial additive composition for lubricant oil according to claim 1; It is characterized in that (C) component is the acid phosphatase stearyl, or neutral TRI N BUTYL PHOSPHATE, or acid phosphorous acid dodecyl ester; Or neutral tri-n-butylphosphite, or the mixture of their arbitrary combination.
5. industrial additive composition for lubricant oil according to claim 1 is characterized in that (D) component is the high base number alkylsalicylate, or high base number alkyl monosulfide phenates, or the mixture of their arbitrary combination.
6. industrial additive composition for lubricant oil according to claim 1 is characterized in that (E) component is the different monooctyl ester of dodecenylsuccinic acid, or the triethanolamine oleate ester, or amino dodecane, or stearylamine, or the mixture of their arbitrary combination.
7. industrial additive composition for lubricant oil according to claim 1; It is characterized in that (F) component is a tri-n-butyl borate, or boric acid three n-octyls, or boric acid three (12) alkyl ester; Or boric acid three (18) alkyl ester; Or the boronation oleic acid glycol ester, or boronation oleic acid glycerine ester, or the mixture of their arbitrary combination.
8. industrial additive composition for lubricant oil according to claim 1 is characterized in that (A) component concentration is 5.0～15.0wt%.
9. industrial additive composition for lubricant oil according to claim 1 is characterized in that (B) component concentration is 5.0～15.0wt%.
10. industrial additive composition for lubricant oil according to claim 1 is characterized in that (C) component concentration is 30.0～70.0wt%.
11. industrial additive composition for lubricant oil according to claim 1 is characterized in that (D) component concentration is 2.0～8.0wt%.
12. industrial additive composition for lubricant oil according to claim 1 is characterized in that (F) component concentration is 5.0～20.0wt%.
13. industrial additive composition for lubricant oil according to claim 1 is characterized in that (G) component concentration is 0～4.0wt%.
14. the application of the described industrial additive composition for lubricant oil of claim 1 is characterized in that using compositions of additives to add by 0.3～3.0wt% and can prepare compressor oil, hydraulicefficiency oil, bearing oil, worm gear scroll bar oil, the industrial lubricating oil of industrial gear wet goods in the complete synthesis base oil.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102660355A (en) * | 2012-05-29 | 2012-09-12 | 中国地质大学（北京） | Antiwear lubricating oil additive composition for nitrided steel |
| CN103087810A (en) * | 2013-02-07 | 2013-05-08 | 隋新 | Micro-friction lubricant and preparation method thereof |
| CN104130845A (en) * | 2014-07-29 | 2014-11-05 | 中国石油化工股份有限公司 | Marine gear box oil composition |
| CN104178325A (en) * | 2013-05-27 | 2014-12-03 | 天津市泽畅科技有限公司 | Deposit control agent used in lubricating oil |
| CN104927988A (en) * | 2015-06-01 | 2015-09-23 | 杭州万润能源科技有限公司 | Dedicated engine oil formulation for industrial engine running-in |
| CN105623797A (en) * | 2016-02-01 | 2016-06-01 | 锦州惠发天合化学有限公司 | Weak-smell low-corrosion gear lubricant additive composition and preparation method thereof |
| CN106190442A (en) * | 2016-08-11 | 2016-12-07 | 李红玉 | A kind of multifunctional additive for lubricating oil |
| CN106635286A (en) * | 2016-09-20 | 2017-05-10 | 中国石油化工股份有限公司 | Sewing-machine oil composition and purposes thereof |
| CN107739649A (en) * | 2017-08-30 | 2018-02-27 | 中国石油化工股份有限公司 | A kind of antiwear oxidation cooling liquid composition for electric wire copper conductor |
| CN116463163A (en) * | 2023-04-23 | 2023-07-21 | 广东嘉福新材料科技有限公司 | Wear-resistant lubricating oil composition and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102660355A (en) * | 2012-05-29 | 2012-09-12 | 中国地质大学（北京） | Antiwear lubricating oil additive composition for nitrided steel |
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| CN103087810A (en) * | 2013-02-07 | 2013-05-08 | 隋新 | Micro-friction lubricant and preparation method thereof |
| CN104178325A (en) * | 2013-05-27 | 2014-12-03 | 天津市泽畅科技有限公司 | Deposit control agent used in lubricating oil |
| CN104130845A (en) * | 2014-07-29 | 2014-11-05 | 中国石油化工股份有限公司 | Marine gear box oil composition |
| CN104927988A (en) * | 2015-06-01 | 2015-09-23 | 杭州万润能源科技有限公司 | Dedicated engine oil formulation for industrial engine running-in |
| CN105623797A (en) * | 2016-02-01 | 2016-06-01 | 锦州惠发天合化学有限公司 | Weak-smell low-corrosion gear lubricant additive composition and preparation method thereof |
| CN106190442A (en) * | 2016-08-11 | 2016-12-07 | 李红玉 | A kind of multifunctional additive for lubricating oil |
| CN106635286A (en) * | 2016-09-20 | 2017-05-10 | 中国石油化工股份有限公司 | Sewing-machine oil composition and purposes thereof |
| CN107739649A (en) * | 2017-08-30 | 2018-02-27 | 中国石油化工股份有限公司 | A kind of antiwear oxidation cooling liquid composition for electric wire copper conductor |
| CN116463163A (en) * | 2023-04-23 | 2023-07-21 | 广东嘉福新材料科技有限公司 | Wear-resistant lubricating oil composition and preparation method thereof |
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