CN108517247A - A kind of synthesis refrigerator oil and preparation method thereof - Google Patents
A kind of synthesis refrigerator oil and preparation method thereof Download PDFInfo
- Publication number
- CN108517247A CN108517247A CN201810484173.3A CN201810484173A CN108517247A CN 108517247 A CN108517247 A CN 108517247A CN 201810484173 A CN201810484173 A CN 201810484173A CN 108517247 A CN108517247 A CN 108517247A
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- China
- Prior art keywords
- refrigerator oil
- content
- synthetic
- oil
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Classifications
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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
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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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to a kind of synthesis refrigerator oils and preparation method thereof.The technical solution mainly used for：Polyol ester, content are 90% 99%；Antioxidant, content are 0.1% 2%；Sour agent for capturing, content are 0.01% 1%；Antifoaming agent, content are 0.01% 1%；Copper inhibitor, content are 0.1% 2%；Wherein, above-mentioned % is weight %.Refrigerated machine oil composition provided by the present invention has good oxidation stability, anti-friction, and good with hydrocarbon refrigerant intermiscibility.
Description
Technical Field
The invention belongs to the technical field of lubricating oil, and particularly relates to synthetic refrigerator oil and a preparation method thereof.
Background
The refrigerating machine oil is mainly used for lubricating parts needing to be lubricated in a refrigerating machine, and has close relation with the running performance and the service life of a compressor, so that the selection and the application of the refrigerating machine oil are very important. Unlike common lubricating oil, refrigerating machine oil and refrigerant are circulated continuously between the outlet of the compressor in the high temperature region and the evaporator in the low temperature region, and the range of working temperature is wide, so that the refrigerating machine oil is required to have good lubricating, sealing, cooling and corrosion preventing properties, and also required to have good solubility and adaptability with the refrigerant in the range from low temperature to high temperature.
Among hydrofluorocarbon refrigerants, HFC-134a, R407C, and R410A are generally used as refrigerants for automobile air conditioners, refrigerators, and indoor air conditioners. However, these hydrofluorocarbon refrigerants have a high global warming potential although the ozone destruction coefficient is zero, and are subject to increasing restrictions. Therefore, development of a refrigerant that can replace hydrofluorocarbons is urgent.
The difluoromethane refrigerant does not contain chlorine, has the characteristics of low global warming coefficient, high environmental protection and energy efficiency and the like, and gradually becomes a novel refrigerant. At present, refrigerating machine oils widely used in hydrofluorocarbon refrigerants are difficult to be compatible with difluoromethane.
Disclosure of Invention
In order to overcome the defects of the prior art, the refrigerating machine oil composition provided by the invention has good oxidation stability, friction resistance and good compatibility with hydrocarbon refrigerants.
In order to achieve the above purpose, the invention is realized by the following technical scheme.
A synthetic refrigerator oil comprising a polyol ester and an additive: the additives comprise an antioxidant, an acid trapping agent, a defoaming agent and a copper corrosion inhibitor; wherein the content of the polyol ester is 90-99% of the total mass of the refrigerator oil; the content of the antioxidant is 0.1-2% of the total mass of the refrigerator oil; the content of the acid catching agent is 0.01-1% of the total mass of the refrigerator oil; the content of the defoaming agent is 0.01-1% of the total mass of the refrigerator oil; the content of the copper corrosion inhibitor is 0.1-2% of the total mass of the refrigerator oil.
The polyol ester is one or a combination of at least two of neopentyl glycol ester, pentaerythritol ester and dipentaerythritol ester.
The polyol ester is obtained by esterification reaction of polyol and fatty acid; the polyhydric alcohol is one or a combination of at least two of neopentyl glycol, pentaerythritol and dipentaerythritol, and the fatty acid is a fatty acid with 5-10 carbon atoms.
The antioxidant is 2, 6-di-tert-butyl-p-cresol.
The acid trapping agent is tert-butyl phenyl glycidyl ether.
The defoaming agent is polyether modified silicone oil.
The copper corrosion inhibitor is benzotriazole.
The invention has the beneficial effects that: the refrigerating machine oil composition provided by the invention has good oxidation stability, friction resistance and good compatibility with hydrocarbon refrigerants.
Detailed description of the invention
The following embodiments further illustrate the present invention in detail.
Example one
A synthetic refrigerator oil comprises the following components in percentage by weight: the additive comprises 0.5 percent of antioxidant, 1 percent of acid catcher, 0.1 percent of defoaming agent, 0.5 percent of copper corrosion inhibitor and the balance of polyol ester. Wherein the polyol ester is obtained by esterification of pentaerythritol, isononanoic acid and n-heptanoic acid. The low-temperature two-layer separation temperature (10 percent of oil content) of the refrigerator oil and the difluoromethane is detected to be-29 ℃ and the pour point is-42 ℃.
Example two
A synthetic refrigerator oil comprises the following components in percentage by weight: : the additive comprises 0.8 percent of antioxidant, 0.5 percent of acid catcher, 0.1 percent of defoaming agent, 0.5 percent of copper corrosion inhibitor and the balance of polyol ester. Wherein the polyol ester is obtained by esterification of neopentyl glycol, isooctanoic acid and valeric acid. The low-temperature two-layer separation temperature (10 percent of oil content) of the refrigerator oil and the difluoromethane is detected to be-31 ℃ and the pour point is-48 ℃.
EXAMPLE III
A synthetic refrigerator oil comprises the following components in percentage by weight: : the additive comprises 0.5 percent of antioxidant, 0.5 percent of acid catcher, 0.5 percent of defoaming agent, 0.5 percent of copper corrosion inhibitor and the balance of polyol ester. Wherein the polyol ester is obtained by esterification reaction of neopentyl glycol, isononanoic acid and n-heptanoic acid. The low-temperature two-layer separation temperature (10 percent of oil content) of the refrigerator oil and the difluoromethane is detected to be-33 ℃ and the pour point is-45 ℃.
In summary, the refrigerating machine oil provided by the embodiment of the invention has good compatibility with the difluoromethane refrigerant, and the refrigerating machine oil has good lubricating oil and low-temperature fluidity.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these should be considered as within the scope of the present invention.
Claims (7)
1. A synthetic refrigerator oil, comprising a polyol ester and an additive: the additive comprises an antioxidant, an acid trapping agent, a defoaming agent and a copper corrosion inhibitor; wherein,
the content of the polyol ester is 90% -99% of the total mass of the refrigerator oil;
the content of the antioxidant is 0.1-2% of the total mass of the refrigerator oil;
the content of the acid catching agent is 0.01-1% of the total mass of the refrigerator oil;
the content of the defoaming agent is 0.01-1% of the total mass of the refrigerator oil;
the content of the copper corrosion inhibitor is 0.1-2% of the total mass of the refrigerator oil.
2. The synthetic refrigerator oil of claim 1 wherein the polyol ester is any one or a combination of at least two of neopentyl glycol ester, pentaerythritol ester and dipentaerythritol ester.
3. The synthetic refrigerator oil of claim 1 or 2 wherein the polyol ester is obtained by esterification of a polyol with a fatty acid; the polyhydric alcohol is one or a combination of at least two of neopentyl glycol, pentaerythritol and dipentaerythritol, and the fatty acid is a fatty acid with 5-10 carbon atoms.
4. The synthetic refrigerator oil of claim 1 wherein the antioxidant is 2, 6-di-t-butyl-p-cresol.
5. The synthetic refrigerator oil of claim 1 wherein the acid scavenger is t-butylphenyl glycidyl ether.
6. The synthetic refrigerator oil of claim 1 wherein the defoamer is a polyether modified silicone oil.
7. The synthetic refrigerator oil of claim 1 wherein the copper corrosion inhibitor is benzotriazole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484173.3A CN108517247A (en) | 2018-05-19 | 2018-05-19 | A kind of synthesis refrigerator oil and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484173.3A CN108517247A (en) | 2018-05-19 | 2018-05-19 | A kind of synthesis refrigerator oil and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108517247A true CN108517247A (en) | 2018-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810484173.3A Pending CN108517247A (en) | 2018-05-19 | 2018-05-19 | A kind of synthesis refrigerator oil and preparation method thereof |
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| CN (1) | CN108517247A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143547A (en) * | 2020-09-22 | 2020-12-29 | 上海桉欣新能源科技有限公司 | Lubricating oil for refrigeration compressor and preparation method thereof |
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| WO2007072733A1 (en) * | 2005-12-20 | 2007-06-28 | Idemitsu Kosan Co., Ltd. | Refrigerator oil composition, and refrigerator compressor and refrigeration system using the composition |
| CN101851546A (en) * | 2009-03-31 | 2010-10-06 | 中国石油化工股份有限公司 | Refrigeration oil composition |
| CN101851545A (en) * | 2009-03-31 | 2010-10-06 | 中国石油化工股份有限公司 | A kind of refrigerating machine oil composition |
| CN104087390A (en) * | 2014-07-25 | 2014-10-08 | 中国石油化工股份有限公司 | Refrigerating machine oil |
| CN105132088A (en) * | 2015-07-08 | 2015-12-09 | 新疆福克油品股份有限公司 | Synthetic ester refrigerator oil composition |
| CN107287008A (en) * | 2017-06-15 | 2017-10-24 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of refrigerator oil and preparation method thereof and working fluid composition for refrigerating machine |
| CN107674730A (en) * | 2017-10-09 | 2018-02-09 | 佛山市顺德区孚延盛润滑油有限公司 | Refrigerated machine oil composition |
-
2018
- 2018-05-19 CN CN201810484173.3A patent/CN108517247A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007072733A1 (en) * | 2005-12-20 | 2007-06-28 | Idemitsu Kosan Co., Ltd. | Refrigerator oil composition, and refrigerator compressor and refrigeration system using the composition |
| CN101851546A (en) * | 2009-03-31 | 2010-10-06 | 中国石油化工股份有限公司 | Refrigeration oil composition |
| CN101851545A (en) * | 2009-03-31 | 2010-10-06 | 中国石油化工股份有限公司 | A kind of refrigerating machine oil composition |
| CN104087390A (en) * | 2014-07-25 | 2014-10-08 | 中国石油化工股份有限公司 | Refrigerating machine oil |
| CN105132088A (en) * | 2015-07-08 | 2015-12-09 | 新疆福克油品股份有限公司 | Synthetic ester refrigerator oil composition |
| CN107287008A (en) * | 2017-06-15 | 2017-10-24 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of refrigerator oil and preparation method thereof and working fluid composition for refrigerating machine |
| CN107674730A (en) * | 2017-10-09 | 2018-02-09 | 佛山市顺德区孚延盛润滑油有限公司 | Refrigerated machine oil composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143547A (en) * | 2020-09-22 | 2020-12-29 | 上海桉欣新能源科技有限公司 | Lubricating oil for refrigeration compressor and preparation method thereof |
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Application publication date: 20180911 |