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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 problems affecting the color and performance of lubricating oil base oils, poor matching, etc., and achieve strong ability to neutralize corrosive acids and matching High, strong antioxidant effect

Inactive Publication Date: 2017-01-11
梅庆波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: in view of the poor compatibility between existing detergents and ester lubricating oils, the addition of which will affect the color and performance of lubricating oil base oils, the present invention uses dodecane Sodium sulfate is modified and added to the lye, and then modified with ethylenediaminetetraacetic acid complexing agent. After modification, it is dried to obtain powder. The rice and yeast powder are sealed and fermented, and the fermented liquid is collected and concentrated. Toluene, calcium hydroxide powder and calcium oxide powder are mixed to obtain a suspension, and finally the modified powder is mixed with the suspension, and the pH is adjusted with ammonia water to obtain a lubricant detergent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First weigh 10g of magnesium aluminum hydrotalcite, add it to a ball mill, pass through a 120-mesh sieve after ball milling for 2 hours, and obtain magnesium aluminum hydrotalcite powder, mix the magnesium aluminum hydrotalcite powder with sodium lauryl sulfate evenly in a mass ratio of 1:1.2 To obtain the mixture, add the mixture to 600mL of deionized water, and aerate nitrogen from the bottom of the liquid at a rate of 50mL / min. Suction filter after aeration for 6 hours to obtain a filter residue, which is put into a vacuum drying oven at a temperature of 90°C Drying for 10 hours to obtain a dried product, crushing, and passing through a 120-mesh sieve to obtain a modified magnesium-aluminum hydrotalcite powder; the modified magnesium-aluminum hydrotalcite powder prepared above was mixed with a solid-to-liquid ratio of 1:8 and a mass fraction of 15% sodium hydroxide Mix the solution, add 4g of ethylenediaminetetraacetic acid after mixing, ultrasonically treat for 15min...

example 2

[0021] First weigh 5g of magnesium aluminum hydrotalcite, add it to a ball mill, and pass through a 100-mesh sieve after ball milling for 1 hour to obtain magnesium aluminum hydrotalcite powder. Mix the magnesium aluminum hydrotalcite powder with sodium lauryl sulfate evenly at a mass ratio of 1:1.2 To obtain the mixture, add the mixture to 400mL deionized water, and aerate nitrogen from the bottom of the liquid at a rate of 40mL / min. After 4 hours of aeration, suction filter to obtain a filter residue, which is placed in a vacuum drying oven at a temperature of 80°C. Drying for 8 hours to obtain a dried product, crushing, and passing through a 100-mesh sieve to obtain a modified magnesium-aluminum hydrotalcite powder; the modified magnesium-aluminum hydrotalcite powder prepared above was mixed with a solid-to-liquid ratio of 1:8 and a mass fraction of 15% sodium hydroxide Mix the solution, add 2g of ethylenediaminetetraacetic acid after mixing, ultrasonically treat for 10min a...

example 3

[0024]First, weigh 7g of magnesium aluminum hydrotalcite, add it to a ball mill, and pass through a 110-mesh sieve after ball milling for 1 hour to obtain magnesium aluminum hydrotalcite powder. Mix the magnesium aluminum hydrotalcite powder with sodium lauryl sulfate evenly at a mass ratio of 1:1.2 To obtain the mixture, add the mixture to 400mL of deionized water, and aerate nitrogen from the bottom of the liquid at a rate of 45mL / min. Suction filter after aeration for 5 hours to obtain a filter residue, which is put into a vacuum drying oven at a temperature of 85°C. Drying for 9 hours to obtain a dried product, crushing, and passing through a 110-mesh sieve to obtain a modified magnesium-aluminum hydrotalcite powder; the modified magnesium-aluminum hydrotalcite powder prepared above was mixed with a solid-to-liquid ratio of 1:8 and a mass fraction of 15% sodium hydroxide Mix the solution, add 3g of ethylenediaminetetraacetic acid after mixing, ultrasonically treat for 12min...

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Abstract

The invention relates to a preparation method of a lubricating oil detergent, and belongs to the technical field of lubricating oil detergent preparation. The lauryl sodium sulfate preparation method comprises the steps that magnesium aluminum hydrotalcite is modified with lauryl sodium sulfate and then added into alkali liquor, modification is conducted with an ethylenediaminetetraacetic acid complexing agent, and then drying is conducted to obtain powder; rice and yeast powder are sealed to be fermented, and fermentation liquor is collected, concentrated and then mixed with xylene, calcium hydroxide powder and calcium oxide powder to obtain suspension liquor; the modified powder is mixed with the suspension liquor, and after the pH value is regulated with ammonia water, the lubricating oil detergent can be obtained. The lubricating oil detergent prepared through the method is high in compatibility with lipid lubricating oil, the lubricating oil detergent prepared from the modified magnesium aluminum hydrotalcite not only can achieve the good detergency and dispersibility, the extremely high capacity of neutralizing corrosive acid and the high antioxidant property, but also cannot influence the color, luster and properties of base oil of the lubricating oil and has the high base number advantage, wherein the base number is higher than 330 mgKOH / g.

Description

technical field [0001] The invention relates to a preparation method of a lubricating oil detergent, belonging to the technical field of lubricating oil detergent preparation. 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 t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M163/00C10M125/10C10N30/04C10N30/10C10N30/12
CPCC10M125/10C10M163/00C10M2201/062C10N2030/04C10N2030/10C10N2030/12C10N2030/52C10N2030/64
Inventor 梅庆波薛培龙
Owner 梅庆波
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