Preparation method of functional lubricating oil

A kind of lubricating oil and functional technology, applied in the field of lubricating oil, to achieve the effect of excellent anti-friction and anti-wear performance, high load-carrying capacity and good dispersion stability

Active Publication Date: 2014-07-02
DEVON ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the rapid development of the machinery industry and environmental protection put forward more stringent requirements on the performance of lubricating oils, such as lubricating oils need to have high oxidation stability, better viscosity-temperature properties, good low-temperature fluidity and excellent shear stability and anti-wear properties, it is no longer possible to improve the performance of lubricating oil only by relying on traditional single-formulation additives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of the functional lubricating oil of the present embodiment comprises the following steps:

[0021] 1) Dissolve zinc acetate and thioacetamide in water to form a solution;

[0022] 2) Mix zinc acetate solution and thioacetamide solution with dioctyl dithiophosphate and hydrazine hydrate, wherein the molar ratio of zinc acetate, thioacetamide and dioctyl dithiophosphate is 1 :1:3, hydrazine hydrate is excessive, the reaction temperature is 90°C, the reaction time is 2 hours, then the precipitate obtained is centrifuged, then the precipitate is washed with deionized water and absolute ethanol, and the precipitate is placed in Dried in a vacuum oven to obtain nano-zinc sulfide modified by dioctyl dithiophosphate;

[0023] 3) Stir and mix nano-molybdenum disulfide and nano-calcium borate with coupling agent, wherein the weight ratio of nano-molybdenum disulfide and nano-calcium borate is 1:1, and the amount of coupling agent is the total of nano-moly...

Embodiment 2

[0026] The preparation method of the functional lubricating oil of the present embodiment comprises the following steps:

[0027] 1) Dissolve zinc acetate and thioacetamide in water to form a solution;

[0028] 2) Mix zinc acetate solution and thioacetamide solution with dioctyl dithiophosphate and hydrazine hydrate, wherein the molar ratio of zinc acetate, thioacetamide and dioctyl dithiophosphate is 1 :4:6, hydrazine hydrate is excessive, the reaction temperature is 90 ° C, the reaction time is 3 hours, then the precipitate obtained is centrifuged, then the precipitate is washed with deionized water and absolute ethanol, and the precipitate is placed in Dried in a vacuum oven to obtain nano-zinc sulfide modified by dioctyl dithiophosphate;

[0029] 3) Stir and mix nano-molybdenum disulfide and nano-calcium borate with coupling agent, wherein the weight ratio of nano-molybdenum disulfide and nano-calcium borate is 1: 4, and the amount of coupling agent is the total of nano-m...

Embodiment 3

[0032] The preparation method of the functional lubricating oil of the present embodiment comprises the following steps:

[0033] 1) Dissolve zinc acetate and thioacetamide in water to form a solution;

[0034] 2) Mix zinc acetate solution and thioacetamide solution with bis(dodecyl)alkyl dithiophosphate and hydrazine hydrate, wherein zinc acetate, thioacetamide and bis(dodecyl)alkyl disulfide The molar ratio of phosphoric acid ester is 1:2:4, hydrazine hydrate is excessive, the reaction temperature is 90°C, and the reaction time is 2 hours, then the obtained precipitate is centrifuged, and then washed with deionized water and absolute ethanol Precipitate, and then the precipitate is dried in a vacuum drying oven to obtain nano-zinc sulfide modified by two (dodecyl) alkyl dithiophosphates;

[0035] 3) Stir and mix nano-molybdenum disulfide and nano-magnesium borate with coupling agent, wherein the weight ratio of nano-molybdenum disulfide and nano-magnesium borate is 1:2, and...

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PUM

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Abstract

The invention discloses a preparation method of functional lubricating oil, which comprises the following steps: 1) respectively dissolving zinc acetate and thioacetamide into water to prepare solutions; 2) carrying out hybrid reacting of the zinc acetate solution and the thioacetamide solution with dialkyl phosphorodithioate and hydrazine hydrate, and separating, washing and drying the obtained precipitate to obtain the nanometer zinc sulfide modified by the dialkyl phosphorodithioate; 3) stirring and mixing nanometer molybdenum disulfide and nanometer borate with a coupling agent to obtain the coupling agent modified nanometer composite powder; and 4) adding the nanometer zinc sulfide modified by the dialkyl phosphorodithioate obtained in the step 2) in base oil, adding the coupling agent modified nanometer composite powder obtained in the step 3) in the base oil, and successfully blending to obtain the lubricating oil. The functional lubricating oil disclosed by the invention is excellent in antifriction and abrasive resistance, high in bearing capacity, and has a repairing function on the abraded surface.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a preparation method of functional lubricating oil. Background technique [0002] In recent years, with the rapid development of my country's economy, the annual domestic consumption of lubricating oil and oil additives has grown at a rate of 1.0% to 1.9%. Lubricating oil has become an inevitable "protective fluid" for transportation and industrial machinery and equipment . At the same time, the rapid development of the machinery industry and environmental protection put forward more stringent requirements on the performance of lubricating oils, such as lubricating oils need to have high oxidation stability, better viscosity-temperature properties, good low-temperature fluidity and excellent shear stability and anti-wear properties, it is no longer possible to improve the performance of lubricating oils only by relying on traditional single-formulation additives. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/10C10N30/06
Inventor 黎治强
Owner DEVON ENERGY CORP
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