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Lubricating grease composition and preparation method thereof

A technology of lubricating grease composition and compound, applied in lubricating composition, petroleum industry, etc., can solve the problems of high base value calcium sulfonate, high price, not being promoted rapidly, easy hardening during storage, etc., and achieve excellent rust prevention 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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  • Abstract
  • Description
  • Claims
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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

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preparation example Construction

[0024] The present invention also provides a preparation method of the above lubricating grease composition.

[0025] On the one hand, the present invention provides a kind of lubricating grease composition, and described lubricating grease composition contains base oil and thickening agent, and described thickening agent contains non-Newton body sulfurized alkylphenate calcium-calcium sulfonate, higher fatty acid Zirconium salt and polyurea compound, the thickener optionally also contains non-Newtonian calcium naphthenate, non-Newtonian calcium salicylate, non-Newtonian calcium oleate, zirconium salt of aromatic acid, small molecule inorganic acid and / or one or more of the zirconium salts of lower fatty acids, based on the weight of the grease, the content of the base oil is 10-80% by weight, non-Newtonian sulfurized calcium alkylphenate-calcium sulfonate The content is 10-70% by weight, the content of zirconium salt of higher fatty acid is 1-10% by weight, the content of pol...

Embodiment 1

[0093] This example is used to illustrate the grease composition prepared by the present invention.

[0094] Raw material components: ultra-high base value calcium sulfonate (total base value 400mgKOH / g, 24kg); ultra-high base value sulfurized calcium alkylphenate (total base value 400mgKOH / g, 6kg); HVI150BS lubricating base oil (100 ℃ Kinematic viscosity is 31mm 2 / s, 30kg); 4-octadecylphenol (2.8kg); Methanol (1kg); Acetic acid (0.56kg); Zr(OH) 4 (3.9kg); 12-hydroxystearic acid (2kg); terephthalic acid (3.5kg); octadecylamine (1.5kg); MDI (0.7kg); HVI500SN lubricating base oil (100 ℃ kinematic viscosity is 11mm 2 / s, 17kg).

[0095] Add 24kg of super high alkali value calcium sulfonate with total base value of 400mgKOH / g and 6kg of super high alkali value calcium sulfonate with total base value of 400mgKOH / g Base value sulfurized alkyl phenate calcium and 30kg of HVI150BS lubricating base oil, stirring, heating up to 95°C, adding Zr(OH) with a solid content of 20% by weig...

Embodiment 2

[0098] This example is used to illustrate the grease composition prepared by the present invention.

[0099] Raw material components: ultra-high alkalinity calcium sulfonate (total alkalinity 400mgKOH / g, 6kg); high alkalinity sulfurized alkylphenate calcium (total alkalinity 320mgKOH / g, 24kg); HVI150BS lubricating base oil (100℃ Kinematic viscosity is 31mm 2 / s, 20kg); 4-octadecylphenol (2.8kg); Acetic acid (0.56kg); Zirconium n-butoxide (7.83k); Zr(OH) 4 (0.65kg); stearic acid (1.9kg); phthalic acid (3.5kg); laurylamine (1.31kg); MDI (0.89kg); 2 / s, 27kg).

[0100] Add 6kg of ultra-high alkalinity calcium sulfonate with a total alkalinity of 400mgKOH / g and 24kg of superalkali with a total alkalinity of 320mgKOH / g in a 160L atmospheric pressure reactor with heating, stirring, circulation, and cooling Sulfurized alkyl phenate calcium and 20kg of HVI150BS lubricating base oil, stir; heat up to 100°C, add 0.2kg of HVI500SN lubricating base oil and 0.131kg of laurylamine, 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-calcium sulfonate (10-70 wt%), zircon salts of higher fatty acid (1-10 wt%), and polyurea compounds (0.5-30 wt%), and also optionally comprises one or more of non-Newton fluid calcium naphthenate (0-70 wt%), non-Newton fluid calcium salicylate (0-70 wt%), non-Newton fluid calcium oleate (0-70 wt%), zircon salts of aromatic acid (0-15 wt%), and zircon salts of micro-molecular inorganic acid and / or lower fatty acid (0-15 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刘中其孔锡奎郑会姜靓陈政
Owner CHINA PETROLEUM & CHEM CORP
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