A lubricating grease composition and a preparing 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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  • A lubricating grease composition and a preparing method thereof
  • A lubricating grease composition and a preparing method thereof
  • A lubricating grease composition and a preparing method thereof

Examples

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preparation example Construction

[0022] The present invention also provides a preparation method of the above lubricating grease composition.

[0023] 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 the lithium salt of non-Newtonian sulfurized alkyl phenate calcium and higher fatty acid, and thickening agent also can be Optionally containing non-Newtonian calcium sulfonate, non-Newtonian calcium naphthenate, non-Newtonian calcium salicylate, non-Newtonian calcium oleate, lithium salts of aromatic acids, lithium of 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 lithium salt is 1-20% by weight, the content of non-Ne...

Embodiment 1

[0091] This example is used to illustrate the grease composition prepared by the present invention.

[0092] 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, 15kg); 4-octadecylphenol (2.8kg); Acetic acid (0.56kg); Lithium hydroxide monohydrate (1.63kg); 12-hydroxystearic acid (5.6kg); kg); HVI500SN lubricating base oil (100℃ kinematic viscosity is 11mm 2 / s, 25kg).

[0093]In a volume of 160L and with heating, stirring, circulation, cooling of the atmospheric pressure reactor, add 30kg total base value of 400mgKOH / g ultra-high alkali sulfur alkyl phenate calcium and 15kg of HVI150BS lubricating base oil, stir; Raise the temperature to 95°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 down to ...

Embodiment 2

[0096] This example is used to illustrate the grease composition prepared by the present invention.

[0097] Raw material components: high base value calcium sulfide alkylphenate (total base value 320mgKOH / g, 20kg); ultra-high base value calcium sulfonate (total base value 400mgKOH / g, 20kg); HVI150BS lubricating base oil (100°C Kinematic viscosity is 31mm 2 / s, 10kg); Dodecylbenzenesulfonic acid (2.8kg); Ethanol (0.56kg); Lithium hydroxide monohydrate (1.4kg); Stearic acid (3kg); Adipic acid (1.5kg); HVI500SN Lubricating base oil (kinematic viscosity at 100°C is 11mm 2 / s, 13kg).

[0098] In a volume of 160L and with heating, stirring, circulation, cooling normal pressure reactor, add 20kg total alkali value of 320mgKOH / g high alkali sulfur alkyl phenate calcium, 20kg total alkali value of 400mgKOH / g super High alkali value calcium sulfonate and 10kg of HVI150BS lubricating base oil, stir; heat up to 85°C, add 0.3kg of stearic acid and 0.15kg of adipic acid, stir for 10 min...

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Abstract

The invention relates to the field of lubricating grease, and discloses a lubricating grease composition. The composition comprises base oil and a thickening agent. The thickening agent comprises non-Newtonian fluid sulfurized calcium alkyl phenate and a lithium salt of a higher aliphatic acid, and optionally comprises one or more selected from a group consisting non-Newtonian fluid calcium sulfonate, non-Newtonian fluid calcium naphthenate, non-Newtonian fluid calcium salicylate, non-Newtonian fluid calcium oleate, a lithium salt of an aromatic acid, and a lithium salt of a small-molecule inorganic acid and/or a lower aliphatic acid. Based on the weight of the composition, the content of the base oil is 10-80% by weight, the content of the non-Newtonian fluid sulfurized calcium alkyl phenate is 10-70% by weight, the content of the lithium salt of the higher aliphatic acid is 1-20% by weight, and contents of other optional components are respectively 0-70% by weight, 0-70% by weight, 0-70% by weight, 0-70% by weight, 0-15% by weight and 0-15% by weight. A preparing method of the composition is also disclosed. The composition has excellent properties.

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 何懿峰郑会孙洪伟段庆华刘中其姜靓陈政
Owner CHINA PETROLEUM & CHEM CORP
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