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Bentonite grease

A kind of bentonite lubricating grease and lubricating grease technology, which is applied in the field of bentonite lubricating grease, can solve the problems of poor oxidation resistance, etc., and achieve the effects of good corrosion resistance, convenient product differentiation, and good oxidation stability

Active Publication Date: 2010-11-17
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bentonite grease prepared with naphthenic base oil has poorer oxidation resistance than bentonite grease prepared with paraffinic base oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, the preparation of the bentonite grease that is made up of grease base oil, thickener and polar dispersant

[0034] Slowly add 4g of organic bentonite 801-B (Qinghong Chemical Auxiliary Factory, Lin’an City, Zhejiang Province) into 46g of furfural refined oil of naphthenic crude oil (viscosity at 100°C: 19.7cst), stir fully to disperse organic bentonite evenly in the oil In, then add 2.17g acetone to the system, and stir rapidly, finally obtain the bentonite lubricating grease that is made up of the furfural refined oil of naphthenic crude oil, organic bentonite and acetone through grinding and degassing, and their mass-number ratio is 46:4 : 2.2. Its characteristics are shown in Table 1.

Embodiment 2

[0035] Embodiment 2, preparation of bentonite grease composed of grease base oil, thickener, polar dispersant and antioxidant

[0036] Add 1.2g of 4,4'-diisooctyldiphenylamine into 182g (100°C viscosity of 19.7cst) furfural refined oil of naphthenic crude oil and stir, and after uniform dispersion, 18g of organobentonite 801-B (Zhejiang Province Lin'an Qinghong Chemical Auxiliary Factory) slowly added into the system, fully stirred to disperse organic bentonite evenly in the oil, then added 9.77g of acetone to the system, and stirred rapidly, and finally obtained furfural from naphthenic crude oil by grinding and degassing The bentonite lubricating grease composed of refined oil, organic bentonite, acetone and 4,4'-diisooctyldiphenylamine has a mass-number ratio of 182:18:9.77:1.2. Its characteristics are shown in Table 1.

Embodiment 3

[0037] Embodiment 3, the preparation of the bentonite grease that is made up of grease base oil, thickener, polar dispersant, antioxidant and pigment

[0038] Add 0.06g of Sudan III and 1.2g of 4,4'-diisooctyldiphenylamine to 182g (viscosity at 100°C of 19.7cst) of furfural refined oil of naphthenic crude oil and stir. After dispersing evenly, mix 18g of organic bentonite 801 -B (Qinghong Chemical Auxiliary Factory, Lin'an City, Zhejiang Province) is slowly added to the system, fully stirred to disperse the organic bentonite evenly in the oil, then added 9.77g of acetone to the system, and stirred rapidly, and finally degassed by grinding to obtain the The bentonite lubricating grease composed of furfural refined oil of alkyl crude oil, organic bentonite, acetone, 4,4'-diisooctyldiphenylamine and Sudan III is 182:18:9.77:1.2:0.06 in parts by mass. Its characteristics are shown in Table 1.

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Abstract

The invention discloses bentonite grease. The bentonite grease comprises grease base oil, a thickening agent and a polarity dispersing agent, wherein the grease base oil is furfural refined oil of naphthenic base crude oil; and the thickening agent is organic bentonite. Antioxidant and / or pigment is added into the bentonite grease. The furfural refined oil of a mineral source is taken as the grease base oil and the antioxidant is added into the bentonite grease, so that the bentonite grease has high oxidation stability and corrosion resistance; and moreover, the addition of the pigment can play a role in endowing a product with a special appearance and an auxiliary grease variety distinguishing function. The preparation method of the invention is simple and easy to operate.

Description

technical field [0001] The invention relates to the fields of petroleum refining and chemical industry, in particular to a bentonite lubricating grease. Background technique [0002] Grease is a plastic semi-solid product formed by dispersing a thickener in a base oil (liquid lubricant). This product can contain additives or fillers designed to improve certain properties. Bentonite lubricating grease is an important class of non-soap-based lubricating grease. It is a high-temperature lubricating grease product prepared with modified bentonite thickened mineral base oil or synthetic lubricating oil. Bentonite grease not only has good heat resistance, but also has good mechanical stability and colloidal stability. Heat-resistant bentonite grease and extreme pressure bentonite grease are widely used in metallurgical equipment, casting and rolling equipment, and mining heavy machinery equipment , Lubrication of large trucks, papermaking machinery, cement production equipment, ...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10N50/10C10N30/10
Inventor 陈新国纪红兵曾晖
Owner CHINA NAT OFFSHORE OIL CORP
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