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Preparation method of dust-free molybdenum disulfide for lubricant additive

A technology of lubricating additives and molybdenum disulfide, which is applied in the direction of additives, lubricating compositions, dyeing organic silicon compounds, etc., and can solve problems such as flying dust

Inactive Publication Date: 2017-09-29
SONGXIAN EXPLOITER MOLYBDENUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a preparation method of dust-free molybdenum disulfide for lubricating additives, uniformly coat dust suppressant on the surface of molybdenum disulfide, to solve the problem of dust flying when molybdenum disulfide is used as a lubricating additive, and produce The obtained dust-free molybdenum disulfide does not affect the preparation and performance of lubricating additives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Dust suppressant: obtained from crude oil refining, linear alkanes account for 92%, naphthenes 8%, density 0.87g / cm3;

[0030] Proportion of dust suppressant: 2% of dust-free molybdenum disulfide;

[0031] Implementation process:

[0032] Step 1: Detect the gasification temperature of the dust suppressant, the distillation range is 262~320°C;

[0033] Step 2: Add molybdenum disulfide powder and dust suppressant to the mixing mixer according to the ratio, and stir at high speed to raise the temperature. When the temperature of the material in the device exceeds 262°C measured by the thermocouple, keep it warm for 12 minutes and cool to obtain dust-free disulfide molybdenum.

[0034] In the present invention, the components of the dust suppressant used, such as alkanes, nitrogen-containing organic compounds, ester oils, etc., all belong to the components that can be understood, selected and confirmed by those skilled in the art, and these components are easily obtained ...

Embodiment 2

[0039] Dust suppressant: refined from crude oil, 83% linear alkanes, 17% naphthenes, density 0.90g / cm3;

[0040] Proportion of dust suppressant: 3% of dust-free molybdenum disulfide;

[0041] Implementation process:

[0042] Step 1: Detect the gasification temperature of the dust suppressant, the distillation range is 330~400°C;

[0043] Step 2: Add molybdenum disulfide powder and dust suppressant to the mixing mixer according to the ratio, stir at a high speed and heat up, when the temperature of the material in the device measured by the thermocouple exceeds 330°C, keep it warm for 15 minutes, and cool to obtain dust-free disulfide molybdenum.

Embodiment 3

[0045] Dust suppressant: obtained from crude oil refining, it is a combination of cycloalkanes, aromatics, cycloalkylaromatics and nitrogen-containing organic compounds, of which cycloalkanes are 36%, cycloalkylaromatics are 49%, and nitrogen-containing organic compounds pyridines are 15%;

[0046] Proportion of dust suppressant: 5% of dust-free molybdenum disulfide;

[0047] Implementation process:

[0048] Step 1: Detect the gasification temperature of the dust suppressant, the distillation range is 400~483°C;

[0049] Step 2: Add molybdenum disulfide powder and dust suppressant to the mixing mixer according to the ratio, stir at high speed and heat up. When the temperature of the material in the device exceeds 400°C measured by the thermocouple, keep it warm for 8 minutes and cool to obtain dust-free disulfide molybdenum.

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Abstract

The invention relates to the technical field of lubricating material preparation, in particular to a preparation method of dust-free molybdenum disulfide for lubricating additives; molybdenum disulfide powder and dust suppressant are added into a mixing and stirring device according to the ratio, and the temperature is raised by high-speed stirring. The mixing and stirring device is designed to detect the vaporization temperature or distillation range of the dust suppressant used in advance. During the mixing and stirring process, after the temperature of the material in the device exceeds the gasification temperature of the dust suppressant or enters the distillation range temperature, heat preservation and cooling are carried out to make the dust suppressant Dust agent is coated on the surface of molybdenum disulfide to obtain dust-free molybdenum disulfide; it solves the problem of dust flying when molybdenum disulfide is used as a lubricating additive, and the prepared dust-free molybdenum disulfide does not affect the preparation and production of lubricating additives. Use performance.

Description

technical field [0001] The invention relates to the technical field of lubricating material preparation, in particular to a preparation method of dust-free molybdenum disulfide for lubricating additives. Background technique [0002] As an important solid lubricant and liquid lubricant additive, molybdenum disulfide is widely used in machinery, aviation, automobile, light industry and other fields. [0003] Since molybdenum disulfide has a hexagonal layered structure, there is a weaker valence bond structure between layers, which makes it easy to slip between layers, while molybdenum disulfide and molybdenum atoms in the same layer are separated by sulfur atoms. The strong chemical bond structure also endows the molybdenum disulfide layer with high mechanical strength and chemical stability. The physical and chemical characteristics determined by the unique layered structure of molybdenum disulfide make it a lubricating material with excellent performance. [0004] When add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C3/08C09C3/10C09C3/12C10M125/00
CPCC09C1/0003C09C3/08C09C3/10C09C3/12C10M125/00C10M2201/066
Inventor 赵维根杜苗苗范家富
Owner SONGXIAN EXPLOITER MOLYBDENUM
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