Lubricating oil additive and preparation method thereof

A lubricating oil additive and mixed liquid technology, which is applied in the field of lubricating oil, can solve the problems of poor lubricating effect of lubricating oil, environmental and human health hazards, etc., and achieve the effect of increasing lubricating effect, no harm to the environment and human health, and simple preparation method

Active Publication Date: 2019-01-08
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The related technology provides a lubricating oil additive, which contains harmful elements such as phosphorus, sulfur, chlorine, etc., caus

Method used

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  • Lubricating oil additive and preparation method thereof
  • Lubricating oil additive and preparation method thereof
  • Lubricating oil additive and preparation method thereof

Examples

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preparation example Construction

[0035] On the one hand, the embodiment of the present invention provides a kind of preparation method of lubricating oil additive, as attached figure 1 Shown, this preparation method comprises:

[0036] Step 101, adding graphene into the first oxidation solution, performing the first oxidation treatment, dilution, filtration, and drying in sequence to obtain an intermediate.

[0037] Step 102, adding the intermediate to the second oxidation solution, performing the second oxidation treatment, centrifugation, pickling, dialysis, and freeze-drying in sequence to obtain graphene oxide.

[0038] Step 103, placing the graphene oxide in the mixed solution of water and ethanol, and obtaining the first mixed solution after the first ultrasonic operation.

[0039] Step 104, placing cerium nitrate hexahydrate in the mixed solution of water and ethanol, and after the first stirring operation, a second mixed solution is obtained.

[0040] Step 105, drop the second mixed liquid into the ...

Embodiment 1

[0082] This implementation provides a kind of lubricating oil additive, and it is prepared by the following method:

[0083] Add 3g of graphene to 12.5mL of concentrated sulfuric acid, 2.5mL of potassium peroxodisulfate, phosphorus pentoxide, water mixed solution, magnetically stir the reaction for 6h in a water bath at 80°C, then add 500mL of water to the mixed solution to dilute , filtered, and finally dried at 40°C to obtain an intermediate.

[0084] Add the intermediate to 115mL of concentrated sulfuric acid, stir evenly in a water bath at 0°C, then control the temperature of the water bath to 10°C, and slowly add 15g of potassium permanganate, react for 2 hours at 35°C, and then add 230mL of water , and reacted at 45°C for 2h. Finally, 700mL of water and 12.5mL of hydrogen peroxide were added and allowed to stand for a day. The mixture was centrifuged, washed with hydrochloric acid with a mass fraction of 10%, and finally loaded into a dialysis membrane, soaked in water...

Embodiment 2

[0087] This implementation provides a kind of lubricating oil additive, and it is prepared by the following method:

[0088] Add 3g of graphene to 10mL of concentrated sulfuric acid, 2.5mL of potassium peroxodisulfate, phosphorus pentoxide, and water, and stir the reaction for 5.8h under the condition of 78°C in a water bath, then add 500mL of water to the mixture to dilute , filtered, and finally dried at 40°C to obtain an intermediate.

[0089] Add the intermediate to 110mL of concentrated sulfuric acid, stir evenly in a water bath at 0°C, then control the temperature of the water bath at 10°C, and slowly add 13g of potassium permanganate, react at 33°C for 1.8h, and then add 220mL water, reacted at 43°C for 1.8h. Finally, 690mL of water and 12mL of hydrogen peroxide were added and allowed to stand for a day. The mixture was centrifuged, washed with hydrochloric acid with a mass fraction of 10%, and finally loaded into a dialysis membrane, soaked in water for one week, and...

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Abstract

The invention discloses a lubricating oil additive and a preparation method thereof and belongs to the field of lubricating oil. The preparation method of the lubricating oil additive comprises stepsas follows: graphene is added to a first oxidation liquid for sequential primary oxidation treatment, dilution, filtration and drying, and an intermediate is obtained; the intermediate is added to a second oxidation liquid for sequential secondary oxidation treatment, centrifugation, acid pickling, dialysis and freeze-drying, and graphene oxide is obtained; the graphene oxide is placed in a waterand ethyl alcohol mixed solution, and a first mixed solution is obtained after primary ultrasonic operation; cerium nitrate hexahydrate is placed in the water and ethyl alcohol mixed solution, and a second mixed solution is obtained after primary stirring operation; the second mixed solution is dropped into the first mixed solution, and a third mixed solution is obtained through secondary stirringoperation and secondary ultrasonic operation; sodium hydroxide is added to the third mixed solution, after tertiary stirring operation, a reaction is realized at the preset temperature, and the pollution-free lubricating oil additive having the good lubricating effect is obtained through washing with water and washing with ethyl alcohol.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a lubricating oil additive and a preparation method thereof. Background technique [0002] Friction is an inevitable natural phenomenon. Friction and wear will shorten the service life of mechanical equipment and increase power consumption. By adding lubricating oil can reduce friction and reduce friction and wear. With the overall adjustment of my country's industrial structure, a large amount of lubricating oil is widely used in new equipment, instruments and process systems, and the lubricating performance requirements of lubricating oil are getting higher and higher. By adding appropriate additives to lubricating oil, the lubricating performance of lubricating oil can be adjusted. Based on the above, it is very necessary to provide a lubricating oil additive that has good applicability and can improve the lubricating performance of lubricating oil. [0003] The related techn...

Claims

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Application Information

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IPC IPC(8): C10M125/20C10M125/02C10M177/00C10N30/04C10N30/06
CPCC10M125/02C10M125/20C10M177/00C10M2201/041C10M2201/082C10N2030/04C10N2030/06C10N2060/04C10N2030/64
Inventor 任艳霞秦玉林唐少俊
Owner CHERY AUTOMOBILE CO LTD
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