Lubricating grease composition and preparation method thereof

A lubricating grease composition, non-Newtonian technology, applied in lubricating compositions, petroleum industry, etc., can solve the problems of high base value calcium sulfonate, high price, not being promoted rapidly, easy hardening during storage, etc., to achieve excellent anti-corrosion Rust and corrosion resistance, excellent storage stability, and stable product quality

Active Publication Date: 2016-10-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Using calcium sulfonate with high alkalinity as raw material to produce lubricating grease, because of its excellent anti-rust and anti-corrosion properties, has attracted widespread attention in the grease industry at home and abroad since it was put into the market. However, despite the high alkalinity calcium sulfonate The base lubricating grease has excellent anti-rust and anti-corrosion properties, but it is easy to harden during storage, and the high price of its production raw material calcium sulfonate with high alkali value and its own complicated preparation process lead to its not being promoted rapidly. At the same time, As people's requirements for environmental protection are getting higher and higher, the pollution of the environment by the sulfonation process that must be passed through the production process of high-basic calcium sulfonate is also increasingly concerned by people.

Method used

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  • Lubricating grease composition and preparation method thereof
  • Lubricating grease composition and preparation method thereof
  • Lubricating grease composition and preparation method thereof

Examples

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preparation example Construction

[0020] The present invention also provides a preparation method of the above lubricating grease composition.

[0021] On the one hand, the present invention provides a kind of lubricating grease composition, and lubricating grease composition contains base oil and thickening agent, and thickening agent contains non-Newtonian sulfurized alkylphenate calcium, and thickening agent also optionally contains non-Newtonian One or more of calcium sulfonate, non-Newtonian calcium naphthenate, non-Newtonian calcium salicylate, and non-Newtonian calcium oleate, based on the weight of the grease composition, the content of the base oil is 10 -80% by weight, the content of non-Newtonian sulfurized alkylphenate calcium is 10-70% by weight, the content of non-Newtonian calcium sulfonate is 0-70% by weight, and the content of non-Newtonian calcium naphthenate is 0-70% % by weight, the content of non-Newtonian calcium salicylate is 0-70% by weight, and the content of non-Newtonian calcium olea...

Embodiment 1

[0083] This example is used to illustrate the grease composition prepared by the present invention.

[0084] Raw material components: ultra-high base value sulfurized alkylphenate calcium (total base value 400mgKOH / g, 20kg); HVI150BS lubricating base oil (100°C kinematic viscosity is 31mm 2 / s, 15kg); 4-octadecylphenol (2.8kg); Acetic acid (0.56kg); Lithium hydroxide monohydrate (1.63kg); 12-Hydroxystearic acid (5.6kg); Sebacic acid (1.86 kg); HVI500SN lubricating base oil (100℃ kinematic viscosity is 11mm 2 / s, 10kg).

[0085]In a volume of 160L and with heating, stirring, circulation, cooling of the atmospheric pressure reactor, add 20kg total base value of 400mgKOH / g ultra-high alkali sulfur alkyl phenate calcium and 15kg of HVI150BS lubricating base oil, stir; Heat up to 90°C, add 5.6kg of 12-hydroxystearic acid and 1.86kg of sebacic acid, stir for 10 minutes, slowly add an aqueous solution containing 1.63kg of lithium hydroxide monohydrate, stir for 10 minutes; cool dow...

Embodiment 2

[0088] Raw material components: ultra-high base value sulfurized calcium alkylphenate (total base value 400mgKOH / g, 20kg); high base value calcium sulfonate (total base value 320mgKOH / g, 10kg); HVI150BS lubricating base oil (100°C Kinematic viscosity is 31mm 2 / s, 30kg); 4-octadecylphenol (2.8kg); acetic acid (0.56kg); calcium hydroxide (1.8kg); 12-hydroxystearic acid (2kg); terephthalic acid (3.5kg) ;HVI500SN lubricating base oil (100℃ kinematic viscosity is 11mm 2 / s, 17kg).

[0089] In a volume of 160L and with heating, stirring, circulation, cooling of the atmospheric pressure reactor, add 20kg total base value of 400mgKOH / g ultra-high alkali sulfur alkyl phenate calcium, 10kg total base value of 320mgKOH / g High alkali value calcium sulfonate and 30kg of HVI150BS lubricating base oil, stirring; heating up to 85°C, adding 0.9kg of calcium hydroxide suspension with a solid content of 20% by weight, stirring for 10 minutes, adding 0.2kg of 12-hydroxy hard Fatty acid, stir ...

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Abstract

A lubricating grease composition and a preparation method thereof are disclosed. The invention relates to the field of lubricating grease, and discloses a lubricating grease composition. The lubricating grease composition comprises base oil (10-80 wt%) and a thickening agent, which comprises non-Newton fluid sulfurized calcium alkyl phenate (10-70 wt%), and also optionally comprises one or more of non-Newton fluid calcium sulfonate (0-70 wt%), non-Newton fluid calcium naphthenate (0-70 wt%), and non-Newton fluid calcium salicylate (0-70 wt%). The invention also discloses a preparation method of the lubricating grease composition. The provided lubricating grease composition has excellent performances.

Description

technical field [0001] The invention relates to a lubricating grease composition and a preparation method thereof. Background technique [0002] High base value sulfurized alkyl phenate calcium has good detergency and dispersibility, good acid neutralization ability and excellent diffusivity, it can be used as a detergent for lubricating oil, widely used in the preparation of medium and high-grade internal combustion engine oil, especially suitable for Used in supercharged diesel engine oil to reduce carbon deposits on the top of the piston and as an additive for marine cylinder oil, its technical development is mainly to make it highly alkaline, that is, to disperse calcium carbonate into the diluent oil with surface-active sulfurized alkyl phenate calcium Become a colloidal dispersion system. High alkali value sulfurized calcium alkyl phenate is obtained by reacting alkylphenol with CaO, vulcanizing, carbonating and other high alkalinization techniques. Related patents re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/02C10M169/00C10M177/00C10N30/12C10N30/06
Inventor 何懿峰孙洪伟段庆华张建荣郑会刘中其姜靓陈政
Owner CHINA PETROLEUM & CHEM CORP
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