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A kind of composite calcium sulfonate-calcium naphthenate-based octapolyurea grease and preparation method thereof

A technology of calcium naphthenate-based octapolyurea grease and composite calcium sulfonate, applied in the field of grease, can solve problems such as high price of calcium sulfonate with high alkalinity value, not being rapidly promoted, complex preparation process, etc., and achieve excellent Corrosion resistance, low cost, and simple preparation process

Active Publication Date: 2017-11-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Using calcium sulfonate with high base value as raw material to produce lubricating grease, because of its excellent high and low temperature performance, mechanical stability, colloidal stability, oxidation stability, water resistance, corrosion resistance and anti-rust and anti-wear properties, it has been put into the market since then. Since then, it has attracted widespread attention in the grease industry at home and abroad. However, although the high-base value calcium sulfonate-based grease has excellent comprehensive properties, the high price of high-base value calcium sulfonate raw materials and its own complicated preparation 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-alkaline calcium sulfonate is also increasingly concerned by people.

Method used

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  • A kind of composite calcium sulfonate-calcium naphthenate-based octapolyurea grease and preparation method thereof
  • A kind of composite calcium sulfonate-calcium naphthenate-based octapolyurea grease and preparation method thereof
  • A kind of composite calcium sulfonate-calcium naphthenate-based octapolyurea grease and preparation method thereof

Examples

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preparation example Construction

[0021] The present invention also provides a preparation method of the above lubricating grease.

[0022] On the one hand, the present invention provides a kind of composite calcium sulfonate-calcium naphthenate-based octapolyurea grease, based on grease weight, comprising the following components: 10-70% by weight of non-Newtonian calcium sulfonate- Calcium naphthenate; 1-20% by weight of calcium salts of higher fatty acids; 1-15% by weight of calcium salts of aromatic acids; 0.5-30% by weight of polyurea compounds; 10-80% by weight of base oils; optional Ground also includes 1-15% by weight of calcium salts of small molecular inorganic acids and / or lower fatty acids, wherein the polyurea compound is an octapolyurea compound.

[0023] Preferably, based on the weight of the grease, the following components are included: 20-65% by weight of non-Newtonian calcium sulfonate-calcium naphthenate; 2-15% by weight of calcium salts of higher fatty acids; 2-10% by weight Calcium salt ...

Embodiment 1

[0076] This example is used to illustrate the composite calcium sulfonate-calcium naphthenate-based octapolyurea grease prepared by the present invention.

[0077] Raw material components: ultra-high base value calcium sulfonate (total base value 400mgKOH / g, 24kg); ultra-high base value calcium naphthenate (total base value 400mgKOH / g, 6kg); HVI150BS lubricating base oil (100℃ Kinematic viscosity is 31mm 2 / s, 30kg); naphthenic acid (total acid value 180mgKOH / g, 2.8kg); methanol (1kg); acetic acid (0.56kg); calcium hydroxide (1.8kg); 12-hydroxystearic acid (2kg) ; terephthalic acid (3.5kg); octadecylamine (0.69kg); ethylenediamine (0.23kg); MDI (1.28kg); HVI500SN lubricating base oil (100 ℃ kinematic viscosity is 11mm 2 / s, 17kg).

[0078] Add 24kg of super high alkali value calcium sulfonate with total base value of 400mgKOH / g, 6kg of total base value of 400mgKOH / g super High alkali value calcium naphthenate and 30kg of HVI150BS lubricating base oil, stir, heat up to 50°C,...

Embodiment 2

[0081] This example is used to illustrate the composite calcium sulfonate-calcium naphthenate-based octapolyurea grease prepared by the present invention.

[0082] Raw material components: ultra-high base value calcium sulfonate (total base value 400mgKOH / g, 24kg); ultra-high base value calcium naphthenate (total base value 400mgKOH / g, 6kg); HVI150BS lubricating base oil (100℃ Kinematic viscosity is 31mm 2 / s, 30kg); naphthenic acid (total acid value 180mgKOH / g, 2.8kg); methanol (1kg); acetic acid (0.56kg); calcium hydroxide (1.8kg); 12-hydroxystearic acid (2kg) ; terephthalic acid (3.5kg); octadecylamine (0.69kg); ethylenediamine (0.23kg); MDI (1.28kg); HVI500SN lubricating base oil (100 ℃ kinematic viscosity is 11mm 2 / s, 17kg).

[0083] Add 24kg of super high alkali value calcium sulfonate with total base value of 400mgKOH / g, 6kg of total base value of 400mgKOH / g super High alkali value calcium naphthenate and 30kg of HVI150BS lubricating base oil, stir, heat up to 50°C,...

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Abstract

The invention discloses a composite calcium sulfonate-calcium naphthenate-based octapolyurea grease, which comprises the following components based on the weight of the grease: 10-70% by weight of non-Newtonian calcium sulfonate-naphthenate Calcium; 1-20% by weight of calcium salts of higher fatty acids; 1-15% by weight of calcium salts of aromatic acids; 0.5-30% by weight of polyurea compounds; 10-80% by weight of base oils; optionally also include 1-15% by weight of calcium salts of small molecular inorganic acids and / or lower fatty acids, wherein the polyurea compound is an octapolyurea compound. Also disclosed are a preparation method of a composite calcium sulfonate-calcium naphthenate-based octapolyurea grease and the prepared composite calcium sulfonate-calcium naphthenate-based octapolyurea grease. The lubricating grease of the present invention has mechanical stability, water resistance, adhesion, salt spray resistance, extreme pressure and anti-wear properties superior to the composite calcium sulfonate-based octapolyurea lubricating grease, and has longer lubrication life .

Description

technical field [0001] The invention relates to lubricating grease, in particular to a composite calcium sulfonate-calcium naphthenate-based octapolyurea lubricating grease and a preparation method thereof. Background technique [0002] Calcium sulfonate has been used as a detergent and antirust agent for lubricating oil for decades, and is widely used as an additive for internal combustion engine lubricating oil. Its technical development is mainly to make it highly alkaline, that is, to use calcium carbonate with a Active calcium alkylbenzene sulfonate or calcium alkyl carboxylate is dispersed in diluent oil to form a colloidal dispersion system. High base value calcium sulfonate can be divided into petroleum calcium sulfonate and synthetic calcium sulfonate according to different production methods. Calcium petroleum sulfonate is made with oleum or SO 3 Petroleum sulfonic acid, a by-product of the production of white oil from sulfonated mineral lubricating oil, is combi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M141/08C10M169/06C10M177/00C10N50/10
Inventor 何懿峰孙洪伟段庆华张建荣刘中其姜靓陈政郑会
Owner CHINA PETROLEUM & CHEM CORP