High base number composite calcium sulfonate lubricating grease and its preparation method

A compound calcium sulfonate grease, the technology of compound calcium sulfonate, applied in the directions of lubricating composition, petroleum industry, additives, etc., can solve the problem of the preparation method of compound calcium sulfonate grease with high base value without explaining the compound effect of organic urea compound, Problems such as high base number complex calcium sulfonate grease are not explained, and the effect of long lubricating life, stable product quality and excellent extreme pressure is achieved
CN1414076AInactive Publication Date: 2003-04-30SINOPEC LUBRICANTS TIANJIN
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SINOPEC LUBRICANTS TIANJIN
Publication Date
2003-04-30
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

A composite lubricating grease contains high-basicity petroleum calcium sulfonate or synthetic calcium sulfonate, acetic acid, C12-C22 hydroxy fatty acid, boric acid, arylamine-type antioxidizing agent and basic lubricating oil. Its advantages are excellent extreme-pressure resistance to friction, water, salt fog and corrosion, high drop point and thermal stability, good viscosity and long service life.
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Description

technical field

[0001] The invention relates to a compound calcium sulfonate lubricating grease and a preparation method thereof, in particular to a high-performance high-basic value compound calcium sulfonate lubricating grease containing an organic urea compound. Background technique

[0002] Calcium sulfonate with high base value is used as a detergent and has acid neutralization ability, and is widely used as an additive for internal combustion engine lubricating oil. Calcium sulfonate with high base value can be divided into petroleum calcium sulfonate and synthetic calcium sulfonate according to different production methods. Petroleum calcium sulfonate is a by-product petroleum produced when oleum or sulfur trioxide is used to sulfonate mineral lubricating oil. Sulfonic acid is produced by reacting with calcium hydroxide, carbonation and other high alkalinization techniques; synthetic calcium sulfonate is synthesized by sulfonation of fuming sulfuric acid or sulfur tri...

Claims

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