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Environment-friendly synthetic refrigerating machine oil and preparation method thereof

A refrigerating machine oil, an environmentally friendly technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems of synthetic refrigerating machine oil's chemical stability, lubricating thermal stability and oxidation stability, etc., to achieve good chemical stability, Good hydrolytic stability and long service life

Inactive Publication Date: 2020-09-18
上海中孚油品集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide an environment-friendly synthetic refrigerating machine oil and a preparation method thereof. The environment-friendly synthetic refrigerating machine oil and its preparation method should solve the chemical stability, lubricity, thermal Technical issues with poor stability and oxidation stability

Method used

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  • Environment-friendly synthetic refrigerating machine oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) Add the mixed base oil pentaerythritol ester obtained by the esterification reaction of pentaerythritol and high-carbon and low-carbon fatty acids into the reaction kettle, heat until the liquid temperature is 50-60°C, and stir at this temperature for 20-30min;

[0058] (2) Warm up the base oil obtained in step (1) to 60-70°C, add pour point depressant, and stir at this temperature for 20-30 minutes;

[0059] (3) adding extreme pressure antiwear agent and metal deactivator into the reaction kettle described in step (2) to obtain a mixed liquid, raising the temperature of the obtained mixed liquid to 60-70° C., and stirring at this temperature for 20-30 minutes;

[0060] (4) Add the mixed liquid of acid scavenger A and B and the mixed liquid of detergent and dispersant A and B into the reaction kettle described in step (3) to obtain the mixed liquid, and keep the temperature of the mixed liquid at 60-70°C , stirring at this temperature for 20 to 30 minutes;

[0061]...

Embodiment 2

[0087] (1) Add the mixed base oil pentaerythritol ester obtained by the esterification reaction of pentaerythritol and high-carbon and low-carbon fatty acids into the reaction kettle, heat until the liquid temperature is 50-60°C, and stir at this temperature for 20-30min;

[0088] (2) Heat the base oil obtained in step (1) to 60-70°C, add the mixed liquid of pour point depressant A and B, and stir at this temperature for 20-30 minutes;

[0089] (3) Add the mixed liquid of extreme pressure antiwear agent A and B and the metal deactivator into the reaction kettle described in step (2) to obtain the mixed liquid, and raise the temperature of the obtained mixed liquid to 60-70°C. Stir for 20-30 minutes;

[0090] (4) Add the acid scavenger and the detergent dispersant into the reaction kettle described in step (3) to obtain a mixed liquid, keep the temperature of the mixed liquid at 60-70° C., and stir at this temperature for 20-30 minutes;

[0091] (5) Cool down the mixed liquid ...

Embodiment 3

[0117] (1) Add the mixed base oil pentaerythritol ester obtained by the esterification reaction of pentaerythritol and high-carbon and low-carbon fatty acids into the reaction kettle, heat until the liquid temperature is 50-60°C, and stir at this temperature for 20-30min;

[0118] (2) Heat the base oil obtained in step (1) to 60-70°C, add the mixed liquid of pour point depressant A and B, and stir at this temperature for 20-30 minutes;

[0119] (3) The mixed liquid of extreme pressure antiwear agent A and B and the mixed liquid of metal deactivator A and B are jointly added to the reaction kettle described in step (2) to obtain the mixed liquid, and the resulting mixed liquid is heated to 60 ~70°C, stir at this temperature for 20~30min;

[0120] (4) Add the acid scavenger and the detergent dispersant into the reaction kettle described in step (3) to obtain a mixed liquid, keep the temperature of the mixed liquid at 60-70° C., and stir at this temperature for 20-30 minutes;

...

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Abstract

The invention provides environment-friendly synthetic refrigerating machine oil. The environment-friendly synthetic refrigerating machine oil is composed of polyol ester and additives, wherein the additives comprise an antioxidant, a pour point depressant, an acid catching agent, an extreme-pressure anti-wear agent, a cleaning dispersant, a defoaming agent and a metal deactivator. The invention further provides a preparation method of the environment-friendly synthetic refrigerating machine oil. Base oil of the environment-friendly synthetic refrigerating machine oil is one or more polyol esters synthesized by an esterification reaction of polyol monoester and fatty acid; then the one or more polyol esters synthesized by the esterification reaction are subjected to mixing and intersolubility blending so as to obtain the base oil; and a plurality of the additives are added into the blended base oil, and mixing and stirring are conducted to obtain the environment-friendly synthetic refrigerating machine oil. The synthesized refrigerator oil has good compatibility with various additives, and can be widely applied to refrigerators taking ammonia series, chlorofluorocarbon, hydrochlorofluorocarbon or isobutane as refrigerants. The synthetic refrigerating machine oil also has good chemical stability, lubricity, thermal stability and oxidation stability.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a lubricating oil, in particular to an environment-friendly synthetic refrigerating machine oil and a preparation method thereof. Background technique [0002] Refrigeration machine oil is a special lubricating oil for the compression device in the refrigeration system, and it is an important part that determines and affects the refrigeration function and effect of the refrigeration system. During the working process of the refrigeration system, the low temperature is obtained by decompression and evaporation of the refrigerant, and the refrigeration oil lubricates and cools the working parts of the refrigeration device. In the refrigeration system, the refrigerant needs to be used in conjunction with the refrigerating machine oil to realize the system operation, and the selection of the refrigerating machine oil is based on the refrigerant and needs to match the refrigerant. Speci...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M171/00C10N30/06C10N30/08C10N30/10C10N40/30C10N20/02C10N30/02
CPCC10M169/048C10M171/008C10M2207/2835C10M2209/1045C10M2223/0405C10M2207/026C10M2205/028C10M2209/0845C10M2209/103C10M2209/104C10M2223/041C10M2211/08C10M2219/046C10M2223/047C10M2219/022C10M2215/086C10M2217/06C10M2229/041C10M2215/223C10M2219/106
Inventor 詹放汪志刚顾文良黄雪贞
Owner 上海中孚油品集团有限公司
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