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Preparation of extreme pressure antiwear agent and application of extreme pressure antiwear agent to new energy resource electric automobile gearbox oil

An extreme pressure anti-wear agent, pyridine technology, applied in the field of lubricating oil, can solve the problems of high acid value of oil, wear of parts, high dosage, and achieve the effect of low dosage, low oil loss and low friction

Active Publication Date: 2018-06-29
SHANDONG YUANGEN PETROLEUM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] GL-5 / GL-4 is gearbox and rear axle gear oil designed for light and heavy trucks. The extreme pressure and anti-wear agent of the additive is an acidic additive with high dosage, high sulfur content and high acid value of the oil. , the pure electric vehicle gearbox is more precise, if you continue to use GL-5 / GL-4 heavy-duty oil, it will be corroded soon, causing rapid wear of the parts

Method used

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  • Preparation of extreme pressure antiwear agent and application of extreme pressure antiwear agent to new energy resource electric automobile gearbox oil
  • Preparation of extreme pressure antiwear agent and application of extreme pressure antiwear agent to new energy resource electric automobile gearbox oil
  • Preparation of extreme pressure antiwear agent and application of extreme pressure antiwear agent to new energy resource electric automobile gearbox oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Synthesis of 2-(pyrrole dithioacetamido) pyridine as a low acid value extreme pressure antiwear agent:

[0025] Under the environment of nitrogen stream protection, the massfraction that takes 67.09g is that the pyrrole acetone solution of 20% is transferred in the there-necked flask of 500ml, the sodium hydroxide solid powder that adds 40ml carbon disulfide and 8.0g successively is evenly dispersed in the flask, in Rapid magnetic stirring in an ice bath at -10°C-8°C for 10 to 15 hours, use a water separator to separate the upper water layer, filter to obtain the crude product, crystallize with absolute ethanol, and dry in vacuum to obtain colorless flaky crystals and Sodium pyrrole dithioformate.

[0026] Under the protection of nitrogen flow, add 0.2mol 2-aminopyridine, 100mL chloroform and 0.3mol anhydrous pyridine to a 500mL three-neck flask, add 0.24mol chloroacetyl chloride dropwise at normal temperature and pressure, and stir for 4h. The solvent was evaporated, ...

Embodiment 2

[0029] A low-acid value extreme pressure antiwear agent of the present invention and sulfur nitrogen heterocyclic compound 2-(pyrrole dithioacetylamino)pyridine extreme pressure antiwear performance and traditional extreme pressure antiwear agent sulfurized isobutylene T321 and dialkyl Comparison of anti-wear properties of zinc dithiophosphate T203:

[0030] SH / T 0189 test method, 392N pressure, 1200r / min, room temperature, 60min to test the wear scar diameter.

[0031]

[0032] Data analysis shows that: a kind of extreme pressure antiwear agent with low acid value of the present invention and sulfur nitrogen heterocyclic compound 2-(pyrrole dithioacetamido)pyridine extreme pressure antiwear performance and traditional extreme pressure antiwear additive T321 and T203 The comparative anti-wear performance is still excellent.

Embodiment 3

[0034] A low-acid value extreme pressure antiwear agent of the present invention and sulfur nitrogen heterocyclic compound 2-(pyrrole dithioacetylamino)pyridine extreme pressure antiwear performance and traditional extreme pressure antiwear agent sulfurized isobutylene T321 and dialkyl Comparison of corrosion performance of zinc dithiophosphate T203 copper sheet:

[0035] GB / T 5096 test method, 121°C, 60min, compare the corrosion level of copper sheet.

[0036]

[0037] Data analysis shows: a kind of low acid value extreme pressure anti-wear agent of the present invention and sulfur nitrogen heterocyclic compound 2-(pyrrole dithioacetamido) pyridine copper sheet corrosion performance and additive T321 and T203 compare copper sheet corrosion resistance better.

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Abstract

The invention belongs to the field of lubricating oil, relates to a gearbox oil technology and a low-acid value extreme pressure antiwear agent sulfur and nitrogen heterocyclic compound, in particularto preparation of an extreme pressure antiwear agent and application of the extreme pressure antiwear agent to new energy resource electric automobile gearbox oil. The preparation of the extreme pressure antiwear agent mainly comprises three parts including preparation of sodium pyrrolidine dithiocarbamate, preparation of solid 2-(chloracetyl amino)pyridine and preparation of a yellow product of2-(pyrrodithio acetamino)pyridine; the gearbox oil is prepared from brightening oil 150BS, hydrogenated base oil 150N, 2-(pyrrodithio acetamino)pyridine, cleaning agents and ashless dispersants. The extreme pressure antiwear agent has the advantages that the extreme pressure antiwear performance is good; the additive dosage is low; the cost of the gearbox oil is reduced. The provided gearbox oil has low viscosity, small friction force, low oil product loss and small acid value.

Description

technical field [0001] The invention belongs to the field of lubricating oil, and relates to transmission oil technology and a low-acid value extreme pressure antiwear agent sulfur nitrogen heterocyclic compound, in particular to the preparation of an extreme pressure antiwear agent and the use of the extreme pressure antiwear agent in new energy electric vehicles. Application in automotive transmission oil. Background technique [0002] The lubrication of pure electric vehicles is mainly the lubrication of gearboxes, differentials, steering gears, power steering pumps, and air compressors, while the gearbox lubricants for pure electric vehicles on the market are still GL-5 / GL-4 85W / 90 Or GL-5 / GL-4 80W / 90 four kinds of vehicle gear oil. [0003] GL-5 / GL-4 is gearbox and rear axle gear oil designed for light and heavy trucks. The extreme pressure and anti-wear agent of the additive is an acidic additive with high dosage, high sulfur content and high acid value of the oil. ,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D401/12C10M135/14C10M169/04C10N30/06C10N40/04
CPCC07D401/12C10M135/14C10M169/044C10M2203/003C10M2217/06C10M2219/044C10M2219/062C10N2010/04C10N2030/06C10N2040/04
Inventor 秦胜利袁俊洲赵金伟宋来功乔良纪祥娟
Owner SHANDONG YUANGEN PETROLEUM CHEM
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