Composite calcium naphthenate-based lubricating grease and preparation method therefor

A calcium naphthenate-based, calcium naphthenate technology, applied in lubricating compositions, petroleum industry, etc., can solve problems such as high price of calcium sulfonate with high alkalinity, lack of rapid promotion, complicated preparation process, etc., and achieve excellent Good adhesion, long lubrication life, and simple preparation process

Active Publication Date: 2014-03-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The lubricating grease produced by using calcium sulfonate with high alkalinity as raw material has excellent high and low temperature performance, mechanical stability, colloidal stability, oxidation stability, water resistance, corrosion resistance, rust resistance and wear resistance. Since it was put into the market, It has aroused widespread concern in the lubricating grease industry at home and abroad. However, although the high-basic value calcium sulfonate-based grease has excellent comprehensive performance, the high price of the raw material high-basic calcium sulfonate and the complicated preparation process lead to It has not been 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-alkaline calcium sulfonate is also increasingly concerned by people.

Method used

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  • Composite calcium naphthenate-based lubricating grease and preparation method therefor
  • Composite calcium naphthenate-based lubricating grease and preparation method therefor
  • Composite calcium naphthenate-based lubricating grease and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Raw material components: ultra-high base number calcium naphthenate (total base number 400mgKOH / g, 30kg); 150BS (30kg); C16-C50 naphthenic acid (2.8kg); acetic acid (0.56kg); Ca(OH) 2 (1.8kg); 12-Hydroxystearic Acid (2kg); Boric Acid (2.32kg); 500SN (18kg).

[0037] In a volume of 110L and with heating, stirring, circulation, cooling of the normal pressure reactor, add 30kg total alkali value of 400mgKOH / g calcium naphthenate and 30kg 100 ° C kinematic viscosity is 31mm 2 / s HVI150BS lubricating base oil, stir, heat up to 50°C, keep the temperature for 10 minutes; add 2.8kg naphthenic acid, control the temperature at about 50°C, stir for 10 minutes; add 0.56kg of acetic acid and 4 times the weight of acetic acid The aqueous solution of stirring 10 minutes; Be warming up to 60 ℃, constant temperature 90 minutes, material thickens; Add 1.8kgCa(OH) 2 And dilute the suspension with 4 times of water, stir for 10 minutes; add 2kg of 12-hydroxystearic acid, stir for 10 minutes...

Embodiment 2

[0040] Raw material components: super high base number calcium naphthenate (total base number 420mgKOH / g, 30kg); 150BS (30kg); C16-C50 naphthenic acid (2.8kg); acetic acid (0.56kg); Ca(OH) 2 (1.8kg); 12-Hydroxystearic Acid (2kg); Boric Acid (2.32kg); 500SN (18kg).

[0041] Prepare ultra-high base value calcium naphthenate-based grease by the method of example 1, the difference is that the total base value of the ultra-high base value calcium naphthenate used is 420mgKOH / g, and the performance data of the obtained grease finished product are shown in Table 1.

[0042] In the lubricating grease obtained in this embodiment, based on the weight of the lubricating grease, the composition is: 38.5% of non-Newtonian calcium naphthenate; 55.4% of lubricating base oil; 2.4% of calcium 12-hydroxystearate; and 3.7% of calcium borate.

Embodiment 3

[0044] Raw material components: super high base number calcium naphthenate (total base number 400mgKOH / g, 30kg); 150BS (20kg); butanol (2.8kg); acetic acid (0.56kg); Ca(OH) 2 (1.8kg); 12-Hydroxystearic Acid (2kg); Boric Acid (2.32kg); 500SN (28kg).

[0045] Super high base value composite calcium naphthenate-based lubricating grease was prepared according to the method of Example 1, except that butanol was used instead of naphthenic acid, and the amount of base oil was also changed. The performance data of the finished lubricating grease obtained are shown in Table 1.

[0046] In the lubricating grease obtained in this embodiment, based on the weight of the lubricating grease, the composition is: 38.5% of non-Newtonian calcium naphthenate; 55.4% of lubricating base oil; 2.4% of calcium 12-hydroxystearate; and 3.7% of calcium borate.

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Abstract

The invention provides a kind of composite calcium naphthenate-based lubricating grease and a preparation method therefor. With the weight of the lubricating grease as a reference, the lubricating grease comprises the following ingredients: 10%-70% of non-Newtonian calcium naphthenate, 1%-10% of calcium salts of high fatty acids, 1%-15% of calcium salts of micromolecule inorganic acids or fatty acids and 10%-80% of lubrication base oil. The lubricating grease employs petroleum calcium naphthenate or synthesized calcium naphthenate as a raw material, and contains composite calcium densifiers. The lubricating grease has good anti-water-spray properties and anti-water spray loss properties, and has good performances of adhesion, extreme pressure antiwear property, colloid stability, high dropping point, heat stability, anti-corrosion and the like.

Description

technical field [0001] The invention relates to a lubricant, specifically a high-basic value complex calcium naphthenate-based lubricating grease and a preparation method thereof. Background technique [0002] High base value calcium naphthenate has good cleaning and dispersibility, good acid neutralization ability and excellent diffusivity. It can be used as a detergent for lubricating oil and widely used as an additive for internal combustion engine lubricating oil. Its technical development is mainly It is to make it highly alkaline, that is, to disperse calcium carbonate into diluent oil with surface active calcium cyclic acid to form a colloidal dispersion system. Calcium naphthenate with high base value is mostly an acidic component extracted from distillate oil obtained from crude oil distillation. After being combined with Ca(OH) 2 Reaction, carbonation and other high alkalinization technology, the relevant patents related to the preparation include CN 1465560 and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/06C10M177/00C10N30/06C10N50/10
Inventor 何懿峰孙洪伟段庆华李玲刘中其姜靓
Owner CHINA PETROLEUM & CHEM CORP
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