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Preparation method of lubricating oil detergent

A detergent and lubricating oil technology, applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of non-degradable and non-renewable waste, achieve high biodegradability, strong ability to neutralize corrosive acids, and prepare and the effect of simple processing technology

Active Publication Date: 2013-08-28
江苏德锐润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw materials of these traditional lubricating oil detergents are non-renewable, and the waste released into the environment after use is not biodegradable. Therefore, traditional lubricating oil detergents are not environmentally friendly detergents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of lubricating oil detergent, its raw material composition and mass ratio are:

[0018] Linoleic acid 28g, neutral oil 50g, calcium hydroxide 62g, calcium oxide 14g, calcium chloride 1g, solvent 200g, methanol 20g, water 3g, carbon dioxide 3.2g.

[0019] The linoleic acid is linoleic acid containing 65% acid; the neutral oil is light lubricating oil base oil, the manufacturer is Nanjing Honghan Petrochemical Co., Ltd., specification model 150SN; the solvent is n-heptane .

[0020] A preparation method of lubricating oil detergent, the steps comprising:

[0021] A. Add the formulated amount of linoleic acid, neutral oil, solvent, methanol and calcium chloride into a three-necked flask equipped with a stirring and reflux condenser, mix and stir and heat up to 45°C, then add the formulated amount of calcium hydroxide and Calcium oxide, neutralized for 1.0 hour;

[0022] B. Add the prescribed amount of water, raise the temperature to 55°C, feed the prescribed amou...

Embodiment 2

[0026] A kind of lubricating oil detergent, its raw material composition and mass ratio are:

[0027] Linoleic acid 28g, neutral oil 55g, calcium hydroxide 154g, calcium oxide 5.6g, calcium chloride 2.5g, solvent 270g, methanol 25g, water 14g, carbon dioxide 5.4g.

[0028] The linoleic acid is linoleic acid containing 65% acid; the neutral oil is light lubricating oil base oil; and the solvent is xylene.

[0029] A preparation method of lubricating oil detergent, the steps comprising:

[0030] A. Add the formulated amount of linoleic acid, neutral oil, solvent, methanol and calcium chloride into a three-necked flask equipped with a stirring and reflux condenser, mix and stir to raise the temperature to 55°C, then add the formulated amount of calcium hydroxide and Calcium oxide, neutralized for 2.0 hours;

[0031] B. Add the prescribed amount of water, heat up to 65°C, feed the prescribed amount of carbon dioxide gas, react for 2.0 hours, and the ventilation rate is 25mL / min;...

Embodiment 3

[0035] A kind of lubricating oil detergent, its raw material composition and mass ratio are:

[0036] Linoleic acid 28g, neutral oil 35g, calcium hydroxide 30g, calcium oxide 25g, calcium chloride 1g, solvent 95g, methanol 6g, water 9g, carbon dioxide 9.7g.

[0037] The linoleic acid is linoleic acid containing 85% acid; the neutral oil is light lubricating oil base oil; and the solvent is toluene.

[0038] A preparation method of lubricating oil detergent, the steps comprising:

[0039] A. Add the formulated amount of linoleic acid, neutral oil, solvent, methanol and calcium chloride into a three-necked flask equipped with a stirring and reflux condenser, mix and stir and heat up to 75°C, then add the formulated amount of calcium hydroxide and Calcium oxide, neutralized for 2.0 hours;

[0040] B. Add the prescribed amount of water, raise the temperature to 80°C, feed the prescribed amount of carbon dioxide gas, react for 1.0 hour, and the ventilation rate is 90mL / min;

[0...

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PUM

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Abstract

The invention discloses lubricating oil detergent and a preparation method thereof. The detergent is prepared from the following raw materials in parts by weight: 1 part of linoleic acid, 1-2 parts of neutral oil, 1-6 parts of calcium hydroxide, 0.2-1 part of calcium oxide, 0-0.1 part of calcium chloride, 3-10 parts of solvent, 0.2-1 part of methanol, 0.1-0.5 part of water and 0.1-0.4 part of carbon dioxide. The preparation method of the lubricating oil detergent comprises the following steps of: a high-alkalinity reaction, a neutralization reaction and the like. The lubricating oil detergent disclosed by the invention has better detergency and dispersibility and strong corrosive acid neutralization capacity, and is uniform in calcium carbonate grain size distribution. In the whole reaction process, the preparation and treatment process is simple, free of a high-temperature treatment process and easy to realize on the device. Moreover, most of the materials are regenerative, higher in biodegradability and capable of satisfying the green and environmentally-friendly requirements.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a lubricating oil detergent and a preparation method thereof. Background technique [0002] During the use of the internal combustion engine, some carbon particles and smoke generated by fuel combustion will enter the lubricating oil, and some dust in the air will also enter the oil. At the same time, the high-temperature oxidation of the lubricating oil itself will produce acidic substances. The combination of these substances will form carbon deposits and sludge, which will lead to deterioration of oil quality, increased wear, increased corrosion, blockage of oil passages and filter screens, adhesion of piston rings, and mechanical failure. In order to prevent the formation of these substances and ensure the normal, long-lasting and economical operation of the internal combustion engine, a detergent and dispersant is added to the lubricating oil to neutralize the ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/02C10M129/40C10M125/10C10N30/04
Inventor 王永垒方红霞李长江吴强林
Owner 江苏德锐润滑油有限公司
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