CN111575090A - Air compressor oil composition and application thereof - Google Patents
Air compressor oil composition and application thereof Download PDFInfo
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- CN111575090A CN111575090A CN202010411208.8A CN202010411208A CN111575090A CN 111575090 A CN111575090 A CN 111575090A CN 202010411208 A CN202010411208 A CN 202010411208A CN 111575090 A CN111575090 A CN 111575090A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/285—Esters of aromatic polycarboxylic acids
- C10M2207/2855—Esters of aromatic polycarboxylic acids used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/041—Triaryl phosphates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
Abstract
The invention provides an air compressor oil composition and application thereof, wherein the composition comprises, by weight, 0.1-10 parts of extreme pressure antiwear agent, 0.5-10 parts of antioxidant, 0.01-10 parts of tackifier and 5.0 × 10‑4～1.0×10‑2The anti-foaming agent, the thiazole metal deactivator and the base oil are added in parts by weight, 0.05-10 parts by weight and 55-98 parts by weight respectively; the extreme pressure anti-wear agent is selected from one or more of phosphate type, phosphate type derivatives, sulfur-phosphorus type extreme pressure anti-wear agents and sulfur-nitrogen type extreme pressure anti-wear agents;the antioxidant is selected from one or more of amine antioxidant, phenol antioxidant and carbamate antioxidant; the base oil is selected from group IV base oil and/or group V base oil. The composition adopts IV type base oil and/or V type base oil, is compatible with an antioxidant, and then has the combined action with other components, so that the composition has good high-temperature coking resistance and high-temperature decomposition resistance.
Description
Technical Field
The invention belongs to a compressor oil composition, and particularly relates to an air compressor oil composition and application thereof.
Background
With the demand of specific working environment, the development of miniaturization and compactness of part of reciprocating compressor structure is carried out, the discharge pressure and discharge temperature of the compressor are carried out in higher direction, and higher requirements on the performance of lubricating oil are put forward. Under high exhaust temperature and exhaust pressure, on one hand, the lubricating oil is easy to generate coking and carbon deposit on an air inlet valve and an exhaust valve of a compressor in a short time, which brings inconvenience to equipment maintenance, and on the other hand, part of the lubricating oil is decomposed at high temperature and loses the lubricating effect.
Disclosure of Invention
In view of the above, the present invention is directed to an air compressor oil composition having excellent high temperature resistance.
The invention provides an air compressor oil composition which comprises the following components in parts by weight:
0.1-10 parts of extreme pressure antiwear agent, 0.5-10 parts of antioxidant, 0.01-10 parts of tackifier and 5.0 × 10-4～1.0×10-2The anti-foaming agent, the thiazole metal deactivator and the base oil are added in parts by weight, 0.05-10 parts by weight and 55-98 parts by weight respectively;
the extreme pressure anti-wear agent is selected from one or more of phosphate type, phosphate type derivatives, sulfur-phosphorus type extreme pressure anti-wear agents and sulfur-nitrogen type extreme pressure anti-wear agents;
the antioxidant is selected from one or more of amine antioxidant, phenol antioxidant and carbamate antioxidant;
the tackifier is selected from a macromolecular tackifier and/or polymethacrylate;
the anti-foaming agent is selected from methyl silicone oil or fluorosilicone oil;
the base oil is selected from group IV base oil or group V base oil.
Preferably, the type of the extreme pressure antiwear agent is selected from TCP and/or T309.
Preferably, the antioxidant is selected from one or more of diisopropylphenyl diphenylamine, T531 and T534.
Preferably, the tackifier is selected from jisex 6130.
Preferably, the anti-foaming agent is selected from number 1000 methylsilicone oil.
Preferably, the thiophene metal deactivator is selected from the thiophene metal deactivators of type T706.
Preferably, the base oil is selected from polyalphaolefins and/or ester oils.
Preferably, the base oil is selected from one or more of trimellitate, phthalate and PAO 20.
The invention provides an application of the air compressor oil composition in the technical scheme in a reciprocating air compressor.
The invention provides an air compressor oil composition which comprises, by weight, 0.1-10 parts of an extreme pressure antiwear agent, 0.5-10 parts of an antioxidant, 0.01-10 parts of a tackifier and 5.0 × 10-4～1.0×10-2The anti-foaming agent, the thiazole metal deactivator and the base oil are added in parts by weight, 0.05-10 parts by weight and 55-98 parts by weight respectively; the extreme pressure anti-wear agent is selected from one or more of phosphate type, phosphate type derivatives, sulfur-phosphorus type extreme pressure anti-wear agents and sulfur-nitrogen type extreme pressure anti-wear agents; the antioxidant is selected from one or more of amine antioxidant, phenol antioxidant and carbamate antioxidant; the tackifier is selected from a macromolecular tackifier and/or polymethacrylate; the anti-foaming agent is selected from methyl silicone oil and/or fluorosilicone oil; the base oil is selected from group IV base oil and/or group V base oil. The air compressor oil composition provided by the invention adopts IV-type base oil and/or V-type base oil, is compatible with an antioxidant, and then is acted with other components together, so that the air compressor oil composition has good high-temperature coking resistance and high-temperature decomposition resistance. The experimental results show that: the initial oxidation temperature is 246.7-269.9 ℃.
Drawings
FIG. 1 shows the results of a high temperature coking resistance test on an air compressor oil composition prepared in example 1 of the present invention;
FIG. 2 shows the results of testing the high temperature coking resistance of the air compressor oil composition prepared in example 2 of the present invention;
FIG. 3 shows the results of a high temperature coking resistance test on the air compressor oil composition prepared in example 3 of the present invention;
FIG. 4 shows the result of a high temperature coking resistance test of the air compressor oil composition prepared in comparative example 1 according to the present invention;
FIG. 5 shows the results of the high temperature coking resistance test of the air compressor oil composition prepared in comparative example 2 according to the present invention.
Detailed Description
The invention provides an air compressor oil composition which comprises the following components in parts by weight:
0.1-10 parts of extreme pressure antiwear agent, 0.5-10 parts of antioxidant, 0.01-10 parts of tackifier and 5.0 × 10-4～1.0×10-2The anti-foaming agent, the thiazole metal deactivator and the base oil are added in parts by weight, 0.05-10 parts by weight and 55-98 parts by weight respectively;
the extreme pressure anti-wear agent is selected from one or more of phosphate type, phosphate type derivatives, sulfur-phosphorus type extreme pressure anti-wear agents and sulfur-nitrogen type extreme pressure anti-wear agents;
the antioxidant is selected from one or more of amine antioxidant, phenol antioxidant and carbamate antioxidant;
the tackifier is selected from a macromolecular tackifier and/or polymethacrylate;
the anti-foaming agent is selected from methyl silicone oil and/or fluorosilicone oil;
the base oil is selected from group IV base oil and/or group V base oil.
The air compressor oil composition provided by the invention adopts IV-type base oil and/or V-type base oil, is compatible with an antioxidant, and then is acted with other components together, so that the air compressor oil composition has good high-temperature coking resistance and high-temperature decomposition resistance.
The air compressor oil composition provided by the invention comprises 0.1-10 parts of extreme pressure antiwear additive. The extreme pressure anti-wear agent is selected from one or more of phosphate type, phosphate type derivatives, sulfur-phosphorus type extreme pressure anti-wear agents and sulfur-nitrogen type extreme pressure anti-wear agents; the type of the extreme pressure antiwear agent is preferably selected from TCP and/or T309. In a specific embodiment, the dosage of the extreme pressure antiwear agent is 2 parts.
The air compressor oil composition provided by the invention comprises 0.5-10 parts of antioxidant, preferably 0.75-3 parts; the antioxidant is selected from one or more of amine antioxidant, phenol antioxidant and carbamate antioxidant; the antioxidant is preferably selected from one or more of diisopropylphenyl diphenylamine, T531 and T534. In specific embodiments, the antioxidant is used in an amount of 0.75 parts, 1.5 parts, or 3 parts.
The air compressor oil composition provided by the invention comprises 0.01-10 parts of a tackifier, and preferably 1-8 parts. The tackifier is selected from a macromolecular tackifier and/or polymethacrylate; the polymeric tackifier is preferably selected from polyisobutylene; the tackifier is preferably selected from the group consisting of JINEX 6130. In specific embodiments, the tackifier is used in an amount of 2 parts or 6 parts.
The air compressor oil composition provided by the invention comprises 5.0 × 10-4～1.0×10-2And (3) 0.1 to 0.8 part of an antifoaming agent is preferable. The anti-foaming agent is selected from methyl silicone oil and/or fluorosilicone oil; preferably selected from number 1000 methylsilicones.
The air compressor oil composition provided by the invention comprises 0.05-10 parts of thiazole metal deactivator, preferably 0.1-5 parts. The thiophene metal deactivator is selected from the thiophene metal deactivators of type T706. In specific examples, the amount of the thiazole-based metal deactivator is 0.1 part.
The air compressor oil composition provided by the invention comprises 55-98 parts of base oil; the base oil is selected from group iv and/or group v base oils, preferably selected from polyalphaolefin and/or ester oils, more preferably selected from one or more of trimellitate, phthalate and PAO 20. In specific embodiments, the base oil is used in an amount of 94 parts or 98 parts. In specific embodiments, the base oil is trimellitate or trimellitate in a mass ratio of 19: 30 phthalate ester and PAO 20.
In a specific embodiment of the present invention, the air compressor oil composition comprises:
94 parts of trimellitate, 6 parts of JINEX6130, 3 parts of diisopropylphenyl diphenylamine, 2 parts of TCP, 0.1 part of T706 and 5 × 10-41000 parts of methyl silicone oil antifoaming agent;
or 94 parts of trimellitate, 6 parts of JINEX6130, 0.75 part of T531, 2.25 parts of diisopropylphenyl diphenylamine, 2 parts of TCP, 0.1 part of T706 and 5 × 10-4Part of antifoaming agent No. 1000 methylsilicone oil;
or 38 parts of a phthalate60 parts of PAO20, 2 parts of JINEX6130, 1.5 parts of T534, 0.5 part of L101, 2 parts of TCP, 0.1 part of T706 and 5 × 10-4And (4) defoaming agent No. 1000 methyl silicone oil.
In the present invention, the air compressor oil composition is preferably prepared according to the following method:
0.1-10 parts of extreme pressure antiwear agent, 0.5-10 parts of antioxidant, 0.01-10 parts of tackifier and 5.0 × 10-4～1.0×10-2Mixing the anti-foaming agent, 0.05-10 parts of thiazole metal deactivator and 55-98 parts of base oil, stirring and heating to 110 ℃, and cooling to room temperature to obtain the air compressor oil composition.
The invention provides an application of the air compressor oil composition in the technical scheme in a reciprocating air compressor.
The invention adopts a dish type coking method to test the high temperature coking resistance of the air compressor oil composition, and the specific process comprises the following steps: adding a certain amount of oil into a metal dish, then placing the metal dish into a drying oven at 200 ℃, keeping the temperature for 6 hours, taking out the metal dish, and observing whether the oil in the dish is coked or not.
The invention adopts a PDSC method to perform high-temperature decomposition resistance on the air compressor oil composition.
In order to further illustrate the present invention, the following will describe an air compressor oil composition and its application in detail with reference to the examples, but they should not be construed as limiting the scope of the present invention.
Example 1
94 parts of trimellitate, 6 parts of JINEX6130, 3 parts of diisopropylphenyl diphenylamine, 2 parts of TCP, 0.1 part of T706 and 5 × 10-4And mixing the parts of No. 1000 methyl silicone oil antifoaming agent, stirring, heating to 110 ℃, and cooling to room temperature to obtain the air compressor oil composition.
FIG. 1 shows the results of a high temperature coking resistance test on an air compressor oil composition prepared in example 1 of the present invention; as seen from fig. 1: no obvious coking appears on the surface of the metal dish.
Example 2
94 parts of trimellitate, 6 parts of JINEX6130 and 0.75 part of T531. 2.25 parts of diisopropylphenyl diphenylamine, 2 parts of TCP, 0.1 part of T706 and 5 × 10-4And mixing the parts of No. 1000 methyl silicone oil of the antifoaming agent, stirring, heating to 110 ℃, and cooling to room temperature to obtain the air compressor oil composition.
FIG. 2 shows the results of testing the high temperature coking resistance of the air compressor oil composition prepared in example 2 of the present invention; as seen from fig. 2: no obvious coking appears on the surface of the metal dish.
Example 3
38 parts of phthalate, 60 parts of PAO20, 2 parts of JINEX6130, 1.5 parts of T534, 0.5 part of L101, 2 parts of TCP, 0.1 part of T706 and 5 × 10-4And mixing the parts of No. 1000 methyl silicone oil of the antifoaming agent, stirring, heating to 110 ℃, and cooling to room temperature to obtain the air compressor oil composition.
FIG. 3 shows the results of a high temperature coking resistance test on the air compressor oil composition prepared in example 3 of the present invention; as can be seen from fig. 3: no obvious coking appears on the surface of the metal dish.
According to the technical scheme, the performance test of the air compressor oil composition prepared in the embodiment 1-3 is carried out by the test method, and the results are shown in the following table 1:
TABLE 1 Performance test results for compositions prepared in inventive examples 1-3
Comparative example 1
98 parts of HVIia 500 base oil, 0.1 part of JINEX6130, 1 part of T534, 2 parts of TCP, 0.1 part of T706 and 5 × 10-4And mixing the parts of No. 1000 methyl silicone oil antifoaming agent, stirring, heating to 110 ℃, and cooling to room temperature to obtain the air compressor oil composition.
FIG. 4 shows the result of the high temperature coking resistance test of the air compressor oil composition prepared in comparative example 1 of the present invention, and it can be seen from FIG. 4 that: the composition prepared in comparative example 1 exhibited severe coking on the surface of the dish.
Comparative example 2
98 parts of HVIII 10, 0.5 part of JINEX6130, 1 part of T534, 2 parts of TCP, 0.1 part of T706 and 5 × 10-4And mixing the parts of No. 1000 methyl silicone oil antifoaming agent, stirring, heating to 110 ℃, and cooling to room temperature to obtain the air compressor oil composition.
FIG. 5 shows the result of the high temperature coking resistance test of the air compressor oil composition prepared in comparative example 2 of the present invention, and it can be seen from FIG. 5 that: the composition prepared in comparative example 2 exhibited significant coking on the surface of the dish.
According to the embodiment, the invention provides the air compressor oil composition which comprises, by weight, 0.1-10 parts of extreme pressure antiwear agent, 0.5-10 parts of antioxidant, 0.01-10 parts of tackifier and 5.0 × 10-4～1.0×10-2The anti-foaming agent, the thiazole metal deactivator and the base oil are added in parts by weight, 0.05-10 parts by weight and 55-98 parts by weight respectively; the extreme pressure anti-wear agent is selected from one or more of phosphate type, phosphate type derivatives, sulfur-phosphorus type extreme pressure anti-wear agents and sulfur-nitrogen type extreme pressure anti-wear agents; the antioxidant is selected from one or more of amine antioxidant, phenol antioxidant and carbamate antioxidant; the tackifier is selected from a macromolecular tackifier and/or polymethacrylate; the anti-foaming agent is selected from methyl silicone oil and/or fluorosilicone oil; the base oil is selected from group IV base oil and/or group V base oil. The air compressor oil composition provided by the invention adopts IV-type base oil and/or V-type base oil, is compatible with an antioxidant, and then is acted with other components together, so that the air compressor oil composition has good high-temperature coking resistance and high-temperature decomposition resistance. The experimental results show that: the initial oxidation temperature is 246.7-269.9 ℃.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An air compressor oil composition comprises the following components in parts by weight:
0.1-10 parts of extreme pressure antiwear agent, 0.5-10 parts of antioxidant, 0.01-10 parts of tackifier and 5.0 × 10-4～1.0×10-2All-purpose insecticideThe foaming agent, 0.05-10 parts of thiazole metal deactivator and 55-98 parts of base oil;
the extreme pressure anti-wear agent is selected from one or more of phosphate type, phosphate type derivatives, sulfur-phosphorus type extreme pressure anti-wear agents and sulfur-nitrogen type extreme pressure anti-wear agents;
the antioxidant is selected from one or more of amine antioxidant, phenol antioxidant and carbamate antioxidant;
the tackifier is selected from a macromolecular tackifier and/or polymethacrylate;
the anti-foaming agent is selected from methyl silicone oil and/or fluorosilicone oil;
the base oil is selected from group IV base oil and/or group V base oil.
2. The air compressor oil composition of claim 1, wherein the extreme pressure antiwear agent is a type selected from TCP and/or T309.
3. The air compressor oil composition of claim 1, wherein the antioxidant is selected from one or more of diisopropylphenyl diphenylamine, T531 and T534.
4. The air compressor oil composition of claim 1, wherein the viscosifier is selected from the group consisting of JINEX 6130.
5. The air compressor oil composition of claim 1, wherein the anti-foaming agent is selected from number 1000 methylsilicone oil.
6. The air compressor oil composition of claim 1, wherein the thiophene-based metal deactivator is selected from the thiophene-based metal deactivators of type T706.
7. The air compressor oil composition of claim 1, wherein the base oil is selected from polyalphaolefins and/or ester oils.
8. The air compressor oil composition of claim 1, wherein the base oil is selected from one or more of trimellitate, phthalate, and PAO 20.
9. Use of an air compressor oil composition according to any one of claims 1 to 8 in a reciprocating air compressor.
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| CN202010411208.8A CN111575090A (en) | 2020-05-15 | 2020-05-15 | Air compressor oil composition and application thereof |
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2020
- 2020-05-15 CN CN202010411208.8A patent/CN111575090A/en active Pending
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| CN102433199A (en) * | 2011-10-27 | 2012-05-02 | 无锡惠源高级润滑油有限公司 | Synthetic-ester-based lubricating oil for air compressor |
| CN104263481A (en) * | 2014-10-22 | 2015-01-07 | 中国石油化工股份有限公司 | Air compressor oil and preparation method thereof |
| CN105154194A (en) * | 2015-10-21 | 2015-12-16 | 中国石油化工股份有限公司 | Food-grade lubricating oil composition |
| CN109294702A (en) * | 2018-09-26 | 2019-02-01 | 中国石油化工股份有限公司 | A kind of lubricant oil composite and preparation method thereof |
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| Title |
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Application publication date: 20200825 |