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Preparation method of lubricating oil nano detergent

A technology of detergent and lubricating oil, applied in lubricating compositions, additives, petroleum industry and other directions, can solve the problems of poor extreme pressure and anti-wear performance, poor dispersion performance, etc., and achieve improved lubrication, good stability, and good detergency and dispersion. Effect

Inactive Publication Date: 2017-10-20
常州蓝旗亚纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the disadvantages of poor dispersibility of traditional lubricating oil detergents, poor extreme pressure and anti-wear properties, and inability to effectively avoid corrosion of mechanical parts by acidic substances in the lubricating oil system during use, provide A preparation method of lubricating oil nano-detergent

Method used

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  • Preparation method of lubricating oil nano detergent

Examples

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Effect test

example 1

[0024] Firstly, the nano-copper powder with an average particle size of 10nm is placed in a fluidized bed reactor, and nitrogen gas with a trimethylaluminum content of 8% is passed into the fluidized bed reactor at a rate of 80mL / min for 30min. Afterwards, feed into the fluidized bed reactor with 20mL / min the nitrogen gas with a moisture content of 3%, after continuing to feed for 5min, discharge, and dry to constant weight to obtain coated nano-copper powder; by mass ratio: 1:80, mix the coated nano-copper powder with a dopamine solution with a mass concentration of 1.8g / L, then continuously feed air into the dopamine solution at a rate of 10mL / min for 40min, and filter to obtain a modified coated nano-copper powder; In parts by weight, 60 parts of petroleum ammonium sulfonate, 150 parts of xylene, 4 parts of calcium oxide, 10 parts of accelerator A, 20 parts of magnesium oxide, 10 parts of water, 8 parts of accelerator B, 20 parts of modified package are taken successively. ...

example 2

[0026]First place the nano-copper powder with an average particle size of 35nm in a fluidized bed reactor, and feed nitrogen with a trimethylaluminum content of 9% into the fluidized bed reactor at a rate of 90mL / min for 45min. After that, feed nitrogen with a moisture content of 4% in the fluidized bed reactor at 40mL / min, continue to feed after 10min, discharge, and dry to constant weight to obtain coated nano-copper powder; 1:90, mix the coated nano-copper powder with a mass concentration of 2.0g / L dopamine solution, then continuously feed air into the dopamine solution at a rate of 15mL / min for 50min, filter to obtain modified coated nano-copper powder; In parts by weight, 70 parts of ammonium petroleum sulfonate, 180 parts of xylene, 6 parts of calcium oxide, 20 parts of accelerator A, 25 parts of magnesium oxide, 15 parts of water, 9 parts of accelerator B, 25 parts of modified package Coated nano-copper powder, 12 parts by mass fraction of 4% sodium silicate solution, i...

example 3

[0028] Firstly, the nano-copper powder with an average particle size of 60nm is placed in a fluidized bed reactor, and nitrogen gas with a trimethylaluminum content of 10% is passed into the fluidized bed reactor at a rate of 100mL / min for 60min. Afterwards, feed nitrogen with a moisture content of 5% into the fluidized-bed reactor at 60mL / min, continue to feed after 15min, discharge, and dry to constant weight to obtain coated nano-copper powder; 1:100, mix the coated nano-copper powder with a mass concentration of 2.2g / L dopamine solution, then continuously feed air into the dopamine solution at a rate of 20mL / min for 60min, and filter to obtain modified coated nano-copper powder; In parts by weight, 80 parts of petroleum ammonium sulfonate, 200 parts of xylene, 8 parts of calcium oxide, 30 parts of accelerator A, 30 parts of magnesium oxide, 20 parts of water, 10 parts of accelerator B, 30 parts of modified package Coated nano-copper powder, 15 parts by mass fraction of 5% ...

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Abstract

The invention discloses a preparation method of a lubricating oil nano detergent and belongs to the technical field of preparation of lubricating oil additives. The preparation method comprises the following steps: putting nano copper powder into a fluidized bed reactor; after introducing nitrogen gas loaded with trimethyl aluminum, introducing water-containing nitrogen gas; discharging and drying to obtain cladded nano copper powder; mixing the cladded nano copper powder with a dopamine solution; then introducing air and filtering to obtain modified cladded nano copper powder; adding calcium oxide, an accelerant A, magnesium oxide, an accelerant B, a sodium silicate solution and the like and stirring at constant temperature to react; after keeping heat, naturally cooling to room temperature; discharging to obtain a mixture; mixing the mixture with petroleum ether and diluting; centrifuging and removing residues; carrying out reduced pressure distillation to obtain the lubricating oil nano detergent. The preparation method of the lubricating oil nano detergent, disclosed by the invention, has the beneficial effects that the lubricating oil nano detergent disclosed by the invention has a relatively good dispersion performance and an extreme-pressure anti-wearing performance; in a utilization process, corrosion, caused by acidic substances in a lubricating oil system, on mechanical parts can be effectively avoided.

Description

technical field [0001] The invention relates to a preparation method of a lubricating oil nano-cleaning agent, belonging to the technical field of lubricating oil additive preparation. Background technique [0002] In order to reduce wear and tear, lubricating oil is a necessary substance for modern machinery and equipment. However, during the use of internal combustion engine lubricating oil, due to high-temperature oxidation and other reasons, the lubricating oil itself undergoes oxidative degradation and produces acidic substances. Therefore, a certain amount of detergent is usually added to the lubricating oil of the internal combustion engine to neutralize the acidic substances generated during the use of the lubricating oil, prevent further oxidation of the acidic compounds, and absorb oxide particles to disperse them in the oil. Fouling and deposits on metal surfaces solves engine idling, stalling and misrunning problems. [0003] Detergent is a surface-active subst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M163/00C10M177/00C10N30/04C10N30/06C10N30/10C10N30/12
CPCC10M163/00C10M177/00C10M2201/05C10M2201/062C10M2201/105C10M2201/18C10M2203/06C10M2207/021C10M2215/042C10M2215/102C10M2219/044C10N2030/04C10N2030/06C10N2030/10C10N2030/12C10N2030/56C10N2020/06
Inventor 袁玲燕方晓俊许蘅
Owner 常州蓝旗亚纺织品有限公司
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