Method of preparing biodegradable lubricating oil

A lubricating oil and biological technology, applied in the field of lubricating oil, can solve the problem of poor wear resistance of degradable lubricating oil, and achieve the effect of good wear resistance and good biodegradability

Active Publication Date: 2015-03-25
领驰慧润滑科技(河北)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the wear resistance of conventional degradable lubricating oil is not good, its preparation method is improved, and a preparation method of biodegradable lubricating oil is proposed

Method used

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  • Method of preparing biodegradable lubricating oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1, mix 30Kg of polyol, 40Kg of vegetable oil, 3Kg of catalyst, and 80Kg of organic solvent evenly, then heat up to 70°C, and react for 2 hours to obtain polyol ester;

[0030] Step 2: Distill the obtained polyol ester under reduced pressure, steam the organic solvent, then add 30Kg of formic acid, after the temperature rises to 60°C, add 20Kg of hydrogen peroxide dropwise, after the dropwise addition, keep the temperature for 2 hours, and let it stand for stratification. Remove the water layer, distill the oil layer, collect the fraction at 190-210°C, and obtain the modified polyol ester;

[0031] Step 3: Mix the modified polyol ester with 10Kg of base oil, 2Kg of triacetin, 1Kg of xanthan gum, 1Kg of antirust agent, 1Kg of extreme pressure and antiwear agent, and 1Kg of surfactant.

[0032] Described polyhydric alcohol is methylolpropane, and described solid superacid catalyst is SO 4 2- / ZrO 2 , the organic solvent is ethanol, the vegetable oil is castor oil, ...

Embodiment 2

[0035] Step 1, mix 40Kg of polyol, 60Kg of vegetable oil, 5Kg of catalyst, and 120Kg of organic solvent evenly, then heat up to 90°C, and react for 4 hours to obtain polyol ester;

[0036] Step 2: Distill the obtained polyol ester under reduced pressure, steam off the organic solvent, then add 40Kg of formic acid, after the temperature rises to 90°C, add 40Kg of hydrogen peroxide dropwise, after the dropwise addition, keep the temperature for 4 hours, and let it stand for stratification. Remove the water layer, distill the oil layer, collect the fraction at 190-210°C, and obtain the modified polyol ester;

[0037] Step 3: Mix the modified polyol ester with 20Kg of base oil, 4Kg of glycerol triacetate, 3Kg of xanthan gum, 1Kg of antirust agent, 1Kg of extreme pressure and antiwear agent, and 1Kg of surfactant.

[0038] Described polyhydric alcohol is methylolpropane, and described solid superacid catalyst is SO 4 2- / ZrO 2 , the organic solvent is ethanol, the vegetable oil ...

Embodiment 3

[0041] Step 1, mix 35Kg of polyol, 50Kg of vegetable oil, 4Kg of catalyst, and 100Kg of organic solvent evenly, then heat up to 80°C, and react for 3 hours to obtain polyol ester;

[0042] Step 2: Distill the obtained polyol ester under reduced pressure, steam off the organic solvent, then add 35Kg of formic acid, after the temperature rises to 70°C, add 30Kg of hydrogen peroxide dropwise, after the dropwise addition, keep the temperature for 3 hours, and let it stand for stratification. Remove the water layer, distill the oil layer, collect the fraction at 190-210°C, and obtain the modified polyol ester;

[0043] Step 3: Mix the modified polyol ester with 10-20Kg of base oil, 2-4Kg of glycerol triacetate, 1-3Kg of xanthan gum, 1Kg of rust inhibitor, 1Kg of extreme pressure and anti-wear agent, and 1Kg of surfactant After that, you can.

[0044] Described polyhydric alcohol is methylolpropane, and described solid superacid catalyst is SO 4 2- / ZrO 2 , the organic solvent i...

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Abstract

The invention relates to a method of preparing biodegradable lubricating oil. The method of preparing biodegradable lubricating oil belongs to the technical field of lubricating oil and comprises the steps: uniformly mixing polyhydric alcohols, vegetable oil, catalysts and organic solvent, heating to perform reaction and obtaining polyol ester; decompressing and distilling the obtained polyol ester, evaporate the organic solvent, adding formic acid, heating and dripping 20-40 parts of hydrogen peroxide; after the dripping is finished, keeping warm, standing and delaminating, removing a water layer, distilling an oil layer, collecting fractions to obtain modified polyol ester; and uniformly mixing the modified polyol ester with base oil, glyceryl triacetate, an xanthan gum, an antirust agent, an anti-wear reagent at extreme pressure and a surfactant to obtain the biodegradable lubricating oil. The lubricating oil provided by the invention keeps better biodegradability and has good anti-wearing property.

Description

[0001] technical field [0002] The invention relates to a preparation method of biodegradable lubricating oil, which belongs to the technical field of lubricating oil. [0003] Background technique [0004] Bio-lubricating oil is an ultra-clean lubricating oil that protects the environment from air pollution and also has the ability to reduce CO 2 Emissions reduce the characteristics of the greenhouse effect; the development of bio-lubricating oil is conducive to increasing production and improving the diesel / gasoline ratio of my country's oil structure. Hydraulic transmission technology is a transmission technology that is widely used in industry, but most of the current hydraulic systems The use of mineral hydraulic oil as the working medium not only consumes a large amount of oil resources, but also causes environmental pollution. Under this background, countries all over the world are researching environmental protection and energy-saving hydraulic transmission techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M159/12C10M129/74C10M145/40C10N30/06C10N30/02
Inventor 李康
Owner 领驰慧润滑科技(河北)有限公司
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