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Lubricating grease composition and preparation method thereof

A technology of lubricating grease composition and higher fatty acid, which is applied in the direction of lubricating composition and petroleum industry, can solve the problems of high price of calcium sulfonate with high alkali value, easy hardening during storage, and has not been rapidly promoted, so as to achieve excellent anti-corrosion Rust and corrosion resistance, stable product quality, and excellent storage stability

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

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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 lubricating grease composition contains base oil and thickening agent, and thickening agent contains zirconium salt of non-Newtonian sulfurized alkyl phenate calcium and higher fatty acid, and thickening agent also can be Zirconium optionally containing non-Newtonian calcium sulfonate, non-Newtonian calcium naphthenate, non-Newtonian calcium salicylate, non-Newtonian calcium oleate, zirconium salts of aromatic acids, small molecular inorganic acids and / or lower fatty acids One or more salts, based on the weight of the grease composition, the content of base oil is 10-80% by weight, the content of non-Newtonian sulfurized alkylphenate calcium is 10-70% by weight, and the content of higher fatty acids The content of zirconium salt is 1-20% by weight, the content of non-N...

Embodiment 1

[0079] This example is used to illustrate the grease composition prepared by the present invention.

[0080] Raw material components: ultra-high base value sulfurized alkylphenate calcium (total base value 400mgKOH / g, 30kg); HVI150BS lubricating base oil (100°C kinematic viscosity is 31mm 2 / s, 30kg); 4-octadecylphenol (2.8kg); Acetic acid (0.56kg); Zr(OH) 4 (3.9kg); 12-hydroxystearic acid (2kg); terephthalic acid (3.5kg); HVI500SN lubricating base oil (100℃ kinematic viscosity is 11mm 2 / s, 17kg).

[0081] In a volume of 110L and with heating, stirring, circulation, cooling of the atmospheric pressure reactor, add 30kg total base value of 400mgKOH / g ultra-high alkali sulfur alkylphenate calcium and 30kg of HVI150BS lubricating base oil, stir, Heat up to 95°C, add Zr(OH) with a solid content of 20% by weight 4 Suspension 19.5kg, stirred for 10 minutes, added 2kg 12-hydroxystearic acid, stirred for 10 minutes, added 3.5kg terephthalic acid, stirred for 10 minutes; cooled to ...

Embodiment 2

[0084] This example is used to illustrate the grease composition prepared by the present invention.

[0085] Raw material components: ultra-high base value sulfurized alkylphenate calcium (total base value 420mgKOH / g, 30kg); HVI150BS lubricating base oil (kinematic viscosity at 100°C is 31mm 2 / s, 30kg); 4-octadecylphenol (2.8kg); Acetic acid (0.56kg); Zirconium ethylate (5.5kg); Zr(OH) 4 (0.65kg); 12-hydroxystearic acid (2kg); phthalic acid (3.5kg); HVI500SN lubricating base oil (100℃ kinematic viscosity is 11mm 2 / s, 17kg).

[0086] In a volume of 110L and with heating, stirring, circulation, cooling of the atmospheric pressure reactor, add 30kg total base value of 420mgKOH / g ultra-high alkali sulfur alkylphenate calcium and 30kg of HVI150BS lubricating base oil, stir, Warming up to 85°C, adding 0.55kg of zirconium ethylate and a solid content of 20% by weight of Zr(OH) 4 Suspension 0.325kg, calculated as zirconium, Zr(OH) 4 The molar ratio to zirconium ethylate is 1:5, ...

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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%), and zircon salts of higher fatty acid (1-20 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%), 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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IPC IPC(8): C10M169/02C10M169/00C10M177/00C10N30/12C10N30/06
Inventor 孙洪伟何懿峰段庆华刘中其郑会姜靓陈政
Owner CHINA PETROLEUM & CHEM CORP
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