CN114874828A - Lubricating oil composition for piston type air compressor and application thereof - Google Patents
Lubricating oil composition for piston type air compressor and application thereof Download PDFInfo
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- CN114874828A CN114874828A CN202110166170.7A CN202110166170A CN114874828A CN 114874828 A CN114874828 A CN 114874828A CN 202110166170 A CN202110166170 A CN 202110166170A CN 114874828 A CN114874828 A CN 114874828A
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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
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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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/38—Heterocyclic nitrogen compounds
- C10M133/44—Five-membered ring containing nitrogen and carbon only
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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
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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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
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
-
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
-
- 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
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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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
- C10M2219/106—Thiadiazoles
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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
- 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 relates to a lubricating oil composition for a piston type air compressor and application thereof, wherein the lubricating oil composition for the piston type air compressor comprises 0.1-1% of ionic liquid and 1-5% of antioxidant by mass, and the ionic liquid has the following structure:
the invention adopts an alkyl pyrrole hexafluorophosphate ionic liquid compound system, and shows excellent wear resistance and oxidation resistance. By screening metal deactivators, rust inhibitors, demulsificationThe additive shows good compatibility and synergistic effect, has stable and excellent performance, and meets the requirements of the piston type air compressor on the severe working conditions of future ultrahigh pressure and high temperature.
Description
Technical Field
The invention belongs to the technical field of lubricating oil and lubricating oil additives, and relates to a lubricating oil composition, in particular to a lubricating oil composition for a piston type air compressor and application thereof.
Background
With the future development of the piston type air compressor towards the upgrading of miniaturization, light weight and precision, the conditions of the exhaust pressure, temperature and the like of equipment are further improved, and the requirements on the wear resistance, the oxidation resistance and the like of compressor oil are more strict. The general mineral oil type and common synthetic products are difficult to meet the use requirements.
Patent CN 107304380A discloses an air compressor oil composition, which adopts mineral or synthetic base oil and uses an antioxidant and antiwear multi-effect additive with a structure of formula (I) to show excellent antiwear and antioxidant performances.
Patent US 4824601a uses acid activated alkaline earth metal to catalyze diisobutylene and diphenylamine to form an alkylated amine mixture as an antioxidant, greatly improving the antioxidant properties of lubricating oils and other functional fluids.
Although the above patent has certain effect in certain aspects, it is still difficult to meet the severe working condition requirements of ultrahigh pressure and high temperature of the piston type air compressor.
Disclosure of Invention
The invention aims to provide a lubricating oil composition for a piston type air compressor and application thereof, wherein the lubricating oil composition has excellent abrasion resistance, solubility and oxidation resistance.
In order to achieve the above object, the present invention provides a lubricating oil composition for a piston air compressor, comprising 0.1 to 1% by mass of an ionic liquid and 1 to 5% by mass of an antioxidant, the ionic liquid having the following structure:
the piston type air compressor lubricating oil composition is characterized in that the antioxidant is an amine antioxidant.
The piston type air compressor lubricating oil composition is characterized in that the antioxidant is at least one of phenyl-alpha-naphthylamine, octylated phenyl-alpha-naphthylamine and 4, 4' -methylene bis (2, 6-di-tert-butylphenol).
The lubricating oil composition for the piston type air compressor, disclosed by the invention, further comprises a metal deactivator with the mass content of 0.01-0.05%, wherein the metal deactivator is a benzotriazole derivative or a thiadiazole derivative.
The lubricating oil composition for the piston type air compressor, disclosed by the invention, further comprises an antirust agent with the mass content of 0.01-0.05%, wherein the antirust agent is at least one of alkenyl succinic acid or barium dinonylnaphthalene sulfonate, and the alkenyl is C 8 -C 18 An alkenyl group.
The lubricating oil composition for the piston type air compressor, disclosed by the invention, further comprises a demulsifier with the mass content of 0.01-0.03%, wherein the demulsifier is an oil-soluble polyether or a polyoxypropylene derivative.
The piston type air compressor lubricating oil composition further comprises an anti-foaming agent with the mass content of 0.01-0.03%, wherein the anti-foaming agent is T901 or T902.
The piston type air compressor lubricating oil composition further comprises base oil, and the base oil is pentaerythritol ester.
In order to achieve the above object, the present invention also provides the use of the above lubricating oil composition for a piston air compressor in a piston air compressor.
The invention has the beneficial effects that:
the invention adopts an alkyl pyrrole hexafluorophosphate ionic liquid compound system, and shows excellent wear resistance and oxidation resistance. Through screening metal deactivators, rust inhibitors, demulsifiers, defoaming agents and the like, the additive shows good compatibility and synergistic effect, has stable and excellent performance, and meets the requirement of the piston type air compressor on the ultrahigh pressure severe working condition.
Drawings
FIG. 1 is a chart showing the appearance of a method for measuring the scorch tendency of a commercially available lubricating oil.
FIG. 2 is the appearance of the method for measuring the scorch tendency of the lubricating oil of example 1.
Detailed Description
The following examples of the present invention are described in detail, and the present invention is carried out on the premise of the technical scheme of the present invention, and detailed embodiments and procedures are given, but the scope of the present invention is not limited to the following examples, and the following examples are experimental methods without specific conditions noted, and generally follow conventional conditions.
The invention provides a lubricating oil composition for a piston type air compressor, which comprises 0.1-1% of ionic liquid by mass and 1-5% of antioxidant by mass, wherein the ionic liquid has the following structure:
the molecular structural formula of the ionic liquid shows that the ionic liquid is a nitrogen-phosphorus-containing compound and contains a heterocyclic compound, has the effects of passivating metal activity, resisting wear and the like, has outstanding oxidation resistance under the conditions of high temperature and high pressure, can effectively prolong the service life of an oil product after being compounded with a naphthylamine antioxidant, and simultaneously increases the solubility of the ionic liquid and oil sludge by using fluorine.
In one embodiment, the ionic liquid is present in the composition of the invention in an amount of typically 0.1 to 0.5% by mass, preferably 0.2 to 0.4% by mass. If the mass percent of the ionic liquid in the composition is less than 0.1%, the possibility of weakening the insufficient catalytic performance of the metal and reducing the service life of the oil product exists; if the mass percent of the ionic liquid in the composition is more than 0.5%, the possibility of no obvious improvement on the service life of the oil exists, and the cost is increased.
In one embodiment, the piston air compressor lubricating oil composition of the present invention comprises, based on the total mass of the composition: 1-5% of antioxidant, 0.1-1% of ionic liquid, 0.01-0.05% of metal deactivator, 0.01-0.05% of antirust agent, 0.01-0.03% of demulsifier, 0.01-0.03% of antifoaming agent and base oil.
In one embodiment, the antioxidant of the present invention is an amine antioxidant, preferably at least one or a combination of phenyl- α -naphthylamine, octylated phenyl- α -naphthylamine, and 4, 4' -methylenebis (2, 6-di-t-butylphenol).
Aiming at the characteristic that the working temperature of a lubricating system of a piston type air compressor is relatively high, the invention preferably selects naphthylamine antioxidants with better high temperature resistance, such as phenyl-alpha-naphthylamine and octylated phenyl-alpha-naphthylamine, and compounds alkyl pyrrole hexafluorophosphate ionic liquid, so that the service life of the oil product is obviously prolonged under the synergistic action of N-P-F.
The antioxidant is usually 0.5 to 3% by mass, preferably 1 to 2% by mass. If the mass percentage of the antioxidant is less than 0.5, the possibility of insufficient antioxidant capacity exists; if the mass percent of the antioxidant is more than 3, the oil product is dark in color after being oxidized and the oil sludge is generated too much.
In one embodiment, the metal deactivator in the composition of the present invention may be selected from a benzotriazole derivative or a thiadiazole derivative. The metal deactivator has good oil solubility, can prevent corrosion of sulfur, organic acid and the like to the metal surface, and can be complexed into inert substances by reacting with metal ions to lose the catalytic oxidation effect.
The metal deactivator is generally contained in the composition of the present invention in an amount of 0.03 to 0.06% by mass. If the mass percent of the metal deactivator in the composition is less than 0.03 percent, the possibility of poor metal protection and easier corrosion of oil products exists; if the mass percent of the metal deactivator in the composition is greater than 0.06%, there is a possibility that there is no significant improvement in the oil's service life and the cost is increased.
The antirust agent in the composition can be alkenyl succinic acid or barium dinonyl naphthalene sulfonate, wherein the alkenyl is C 8 -C 18 An alkenyl group. The molecules of the antirust agent can form an adsorptive protective film on the surface of the metal, can replace water on the surface of the metal, play a role in dehydration and prevent the metal from rusting.
The content of the rust inhibitor in the composition of the present invention is usually 0.03 to 0.06% by mass. If the mass percent of the antirust agent in the composition is less than 0.03%, the possibility of poor metal protection and easier rusting of oil products exists; if the mass percentage of the antirust agent in the composition is more than 0.06 percent, the possibility of obviously improving the service life of the oil product is avoided, and the cost is increased.
The demulsifier in the composition can be oil-soluble polyether or polyoxypropylene derivative. The demulsifier has excellent demulsification performance and foam resistance.
The content of the demulsifier in the composition of the present invention is usually 0.01 to 0.02% by mass. If the mass percent of the demulsifier in the composition is less than 0.01%, the possibility of easy emulsification of oil exists; if the mass percentage of the demulsifier in the composition is more than 0.02%, the possibility that the demulsifier is excessive but the oil emulsifying performance is still poor exists, and the cost is increased.
The anti-foaming agent in the composition of the present invention may be selected from T901 or T902. The anti-foaming agents are convenient to use, have good compatibility with various additives, simultaneously have the functions of stability, oil solubility, anti-foaming property and the like, and have small influence on air release.
The amount of the antifoaming agent in the composition of the present invention is usually 0.01 to 0.02% by mass. If the mass percent of the antifoaming agent in the composition is less than 0.01%, the possibility of poor oil antifoaming performance exists; if the amount of the antifoaming agent in the composition is greater than 0.02% by mass, there is a possibility that the antifoaming agent is excessive but the antifoaming property of the oil is still poor, and the cost is increased.
The composition of the present invention may further contain a base oil, and the type of the base oil is not particularly limited in the present invention, and pentaerythritol ester is generally preferred.
The present invention is not particularly limited to the method of compounding the piston air compressor lubricating oil composition, and for example, all the components may be mixed.
The present invention will be further specifically described with reference to the following examples, but the present invention is not limited to the following examples. Any modification which does not depart from the spirit and scope of the invention is deemed to be within the scope of the invention. The following examples are not specifically illustrated, and various additives such as demulsifiers and the like are conventional in the art.
Example 1:
FIG. 1 is a chart showing the appearance of a method for measuring the scorch tendency of a commercially available lubricating oil. FIG. 2 is the appearance of the method for measuring the scorch tendency of the lubricating oil of example 1. As can be seen from the comparison between FIG. 1 and FIG. 2, the commercial product has a serious coking phenomenon and has a poor appearance on the surface of the aluminum plate, while as shown by the appearance of the method for measuring the coking tendency of the lubricating oil of the present invention in FIG. 2, the surface of the aluminum plate is clean, and has only a small amount of coking substances and very good high-temperature oxidation resistance.
Example 2:
example 3:
example 4:
example 5:
the test results for the blended lubricating oils obtained in examples 1-5 are as follows:
the test results of the blended lubricating oil products obtained in the examples 1-5 show that the rotating oxygen bomb of the oil products is more than 2500 minutes, and the oxidation resistance is excellent; the bearing capacity is excellent, and the wear-resistant protection is provided under the extreme working condition; meanwhile, the oil has good performances of emulsification resistance, rust prevention and the like; by adopting the pentaerythritol ester base oil, the evaporation loss and the Kang carbon residue of the oil product are excellent, and the comprehensive performance of the product is excellent.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. The piston type air compressor lubricating oil composition is characterized by comprising 0.1-1% by mass of ionic liquid and 1-5% by mass of antioxidant, wherein the ionic liquid has the following structure:
2. the piston air compressor lubricating oil composition of claim 1, wherein the antioxidant is an amine antioxidant.
3. The piston air compressor lubricating oil composition of claim 2, wherein the antioxidant is at least one of phenyl-alpha-naphthylamine, octylated phenyl-alpha-naphthylamine, 4' -methylenebis (2, 6-di-tert-butylphenol).
4. The piston air compressor lubricating oil composition as claimed in claim 1, further comprising a metal deactivator in an amount of 0.01 to 0.05% by mass, the metal deactivator being a benzotriazole derivative or thiadiazole derivative.
5. The piston type air compressor lubricating oil composition as claimed in claim 1, further comprising an antirust agent in an amount of 0.01-0.05% by mass, wherein the antirust agent is at least one of barium alkenylsuccinate or barium dinonylnaphthalenesulfonate, and the alkenyl group is C 8 -C 18 An alkenyl group.
6. The piston air compressor lubricating oil composition as claimed in claim 1, further comprising a demulsifier in an amount of 0.01-0.03% by mass, the demulsifier being an oil-soluble polyether or polyoxypropylene-type derivative.
7. The piston air compressor lubricating oil composition as claimed in claim 1, further comprising an anti-foaming agent in an amount of 0.01 to 0.03% by mass, the anti-foaming agent being T901 or T902.
8. The piston air compressor lubricating oil composition of claim 1, further comprising a base oil, the base oil being a pentaerythritol ester.
9. Use of the piston air compressor lubricating oil composition of any one of claims 1 to 8 in a piston air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110166170.7A CN114874828A (en) | 2021-02-05 | 2021-02-05 | Lubricating oil composition for piston type air compressor and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110166170.7A CN114874828A (en) | 2021-02-05 | 2021-02-05 | Lubricating oil composition for piston type air compressor and application thereof |
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| CN114874828A true CN114874828A (en) | 2022-08-09 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100187481A1 (en) * | 2007-06-20 | 2010-07-29 | Bodesheim Guenther | Use of ionic liquids to improve the properties of lubricating compositons |
| US20100227783A1 (en) * | 2009-02-20 | 2010-09-09 | Jacob Joseph Habeeb | Method for reducing friction/wear of formulated lubricating oils by use of ionic liquids as anti-friction/anti-wear additives |
| JP2019065256A (en) * | 2017-09-28 | 2019-04-25 | デクセリアルズ株式会社 | An ionic liquid and a lubricant composition |
-
2021
- 2021-02-05 CN CN202110166170.7A patent/CN114874828A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100187481A1 (en) * | 2007-06-20 | 2010-07-29 | Bodesheim Guenther | Use of ionic liquids to improve the properties of lubricating compositons |
| US20100227783A1 (en) * | 2009-02-20 | 2010-09-09 | Jacob Joseph Habeeb | Method for reducing friction/wear of formulated lubricating oils by use of ionic liquids as anti-friction/anti-wear additives |
| JP2019065256A (en) * | 2017-09-28 | 2019-04-25 | デクセリアルズ株式会社 | An ionic liquid and a lubricant composition |
Non-Patent Citations (1)
| Title |
|---|
| 《自然杂志》编辑部编选: ""院士解读科学前沿"", 上海：上海大学出版社, pages: 422 - 423 * |
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