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Complex calcium sulfonate grease and method for preparing same

A technology of compound calcium sulfonate and lubricating grease, used in lubricating compositions, petroleum industry, thickeners, etc., can solve the problems of raw material base number requirement, complex production process, high refining temperature, and achieve water-spray resistance. Good, good shear resistance, good pumping performance

Inactive Publication Date: 2012-07-25
XINJIANG MODERN PETROCHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are requirements on the base value of raw materials, the required raw materials and production process are complicated, the conversion time is long and the refining temperature is high

Method used

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  • Complex calcium sulfonate grease and method for preparing same

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The production method of composite calcium sulfonate base lubricating grease of the present invention adopts following processing steps: its component ratio is by weight percentage:

[0022] The present invention takes paraffin-based mineral base oil: 32%, vegetable oil: 30%, concentrated sulfuric acid: 20%, calcium hydroxide: 12%, formic acid 3%, conversion accelerator 3% is the composition of calcium sulfonate base lubricating grease of the present invention share.

[0023] Under normal temperature conditions (20-30°C), take 30% of vegetable base oil and 20% of concentrated sulfuric acid, stir and mix for 20-30 minutes, as a spare (1); then take 32% of mineral base oil and 12% of calcium hydroxide, stir and mix Evenly, add 3% special accelerator to the mixed oil, stir for 20-30min, and use it as a spare (2); take the spare (1) and add it to the spare (2), add 3% formic acid, stir, Heating up to 80-110°C, dehydrating, refining, cooling, and homogenizing to obtain the ...

Embodiment 2

[0025] The present invention takes paraffin-based mineral base oil: 35%, vegetable oil: 35%, concentrated sulfuric acid: 13%, calcium hydroxide: 12%, boric acid 2%, conversion accelerator 3% to be the composition of calcium sulfonate base lubricating grease of the present invention share.

[0026] Under normal temperature conditions (20-30°C), take 35% of vegetable base oil and 13% of concentrated sulfuric acid and stir and mix for 20-30 minutes as a spare (1); then take 35% of mineral base oil and 12% of calcium hydroxide and stir and mix evenly , then add 3% conversion accelerator to the mixed oil product, stir for 20-30min, as spare product (2); take spare product (1) and join in spare product (2), drop into boric acid 2%, stir, heat up to 80-110°C, dehydrated, refined, cooled, and homogenized to obtain the complex calcium sulfonate-based lubricating grease. The physical and chemical performance analysis results of the lubricating grease are shown in Table 1.

Embodiment 3

[0028] The present invention takes paraffin-based mineral base oil: 47%, vegetable oil: 26%, concentrated sulfuric acid: 10%, calcium hydroxide: 10%, glacial acetic acid 4%, conversion accelerator 3% is calcium sulfonate base lubricating grease of the present invention Component.

[0029] Under normal temperature conditions (20-30°C), take 26% of vegetable base oil and 10% of concentrated sulfuric acid and stir and mix for 20-30 minutes as a spare (1); then take 47% of mineral base oil and 10% of calcium hydroxide and stir and mix evenly , then add 3% conversion accelerator to the mixed oil product, stir for 20-30min, as spare product (2); get spare product (1) and join in spare product (2), drop into 4% glacial acetic acid, stir, Heating up to 80-110°C, dehydrating, refining, cooling, and homogenizing to obtain the complex calcium sulfonate-based lubricating grease. The physical and chemical performance analysis results of the lubricating grease are shown in Table 1.

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Abstract

The invention discloses a complex calcium sulfonate grease and a method for preparing the complex calcium sulfonate grease. The complex calcium sulfonate grease comprises the following components: 30-50% of mineral oil, 20-40% of plant oil, 8-30% of concentrated sulfuric acid, 1-15% of calcium hydroxide, 0.1-5% of organic acid and 0.1-5% of transformation accelerator. The mixture of the mineral oil and the plant oil is used as a base oil. The prepared complex calcium sulfonate grease has the advantages of low energy consumption, low cost, excellent performance, is easy to prepare, has high drop point, good water resistance and other excellent physical and chemical properties and also has a certain biodegradability.

Description

technical field [0001] The invention relates to a lubricant, in particular to a composite calcium sulfonate-based lubricating grease and a preparation method thereof. Background technique [0002] Calcium sulfonate is often used as a detergent and antirust agent for lubricating oil. In 1950, Sproule et al. found that calcium sulfonate could be used as a thickener to make grease. In the 1960s, people found Newtonian calcium sulfonate The method of transforming into a non-Newtonian body with thixotropic properties, and introducing the high alkalinization technology of calcium sulfonate in the preparation process of calcium sulfonate-based grease, made a high-alkaline calcium sulfonate-based grease. In the mid-1980s, people further compounded non-Newtonian body with fatty acid and borate to make high-alkaline sulfonate complex calcium-based grease, which not only overcomes the shortcomings of poor low-temperature pumpability of previous calcium sulfonate-based greases, but also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M115/10C10M177/00
Inventor 林向阳刘锦升杨文婷胡建和
Owner XINJIANG MODERN PETROCHEM IND
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