Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of sulfur phosphorus nitrogen boron type extreme pressure antiwear agent, its preparation method and gear oil

An extreme pressure anti-wear agent, sulfur phosphorus nitrogen technology, used in additives, petroleum industry, lubricating compositions, etc., can solve the problems of easy to cause corrosion, high sulfur content, ineffectiveness, etc., achieve low sulfur content, The effect of improving the bearing capacity and reducing the dosage

Active Publication Date: 2019-12-31
CHINA FIRST AUTOMOBILE
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its problem is that it is weakly alkaline, and the requirements for extreme pressure wear-resistant agents in specific gear applications are: it can chemically react with the metal surface at high temperature to form a chemical reaction film, which acts as a lubricant and prevents the metal surface from rubbing injury, even welding
Therefore, it can only be used as an auxiliary agent and not as an extreme pressure antiwear agent; in addition, its high sulfur content is easy to pollute the atmosphere, and such sulfur and phosphorus compounds have strong activity and are easy to cause corrosion

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of sulfur phosphorus nitrogen boron type extreme pressure antiwear agent, its preparation method and gear oil
  • A kind of sulfur phosphorus nitrogen boron type extreme pressure antiwear agent, its preparation method and gear oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] A sulfur, phosphorus, nitrogen, and boron type extreme pressure antiwear agent has the following structural formula:

[0032] , where R 1 for C 4 -C 12 Alkyl, R 2 for C 4 -C 20 Alkyl, R 3 for hydrogen or C 4 -C 12 Alkyl, R 4 for hydrogen or C 1 -C 8 the alkyl group, R 5 for hydrogen or C 1 -C 8 the alkyl group, R 6 for hydrogen or C 1 -C 8 of alkyl.

[0033]A preparation method of a sulfur-phosphorus-nitrogen-boron type extreme pressure antiwear agent is prepared by using the following parts by mass in a mixed solution of water and an organic solvent: 1 part of sulfur phosphorus compound; 1.2 to 1.5 parts of alcohol compound; 1.0-2.0 parts of amine compounds; 1.0-1.5 parts of benzotriazole or benzotriazole derivatives; 1.0-1.5 parts of boron compounds; among them, the water and organic solvent in the mixed liquid of water and organic solvent are of any mass Compare.

[0034] Wherein, the sulfur phosphorus compound may be phosphorus trichloride; the ...

example 1

[0040] First connect the stirring device, the condensing device and the reactor, and add phosphorus trichloride, isobutanol (or C 4 -C 6 branched or straight-chain alcohol), water, benzene or toluene or xylene, after fully stirring, react at 10°C for 6 hours, and distill at atmospheric pressure to obtain the intermediate product A1.

[0041] The intermediate product A1 is mixed with appropriate amount of benzotriazole, tert-butylamine (or C 4 -C 8 straight-chain or branched aliphatic primary amine), benzene or toluene or xylene, stir well, and react at 60°C for 2 hours to obtain the intermediate product B1.

[0042] The intermediate product B1 and boric acid were fully stirred evenly, heated to reflux for 3 hours, the solvent was distilled off under normal pressure, and the final product C1 was obtained by filtration.

[0043] The structural formula of product C1 is:

[0044] .

example 2

[0046] First connect the stirring device, the condensing device and the reactor, and add phosphorus trichloride, n-octanol (or C 7 -C 10 branched or straight-chain alcohol), water, n-heptane or solvent gasoline, after fully stirring, react at 50°C for 2 hours, and distill at atmospheric pressure to obtain the intermediate product A2.

[0047] The intermediate product A2 and the appropriate amount of butyl benzotriazole (or benzene ring belt C 4 -C 8 straight-chain or branched-chain alkyl), dodecylamine (or C 8 -C 16 straight-chain or branched aliphatic primary amine), n-heptane or solvent gasoline, stir well, and react at 60°C for 2 hours to obtain the intermediate product B2.

[0048] Intermediate product B2 is mixed with appropriate triethanolamine borate (or C 3 -C 16 The organoboric acid ester) was fully stirred evenly, heated to reflux for 3 hours, the solvent was distilled off under normal pressure, and the final product C2 was obtained by filtration.

[0049] The...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of wear resistance of gear oil, and specifically provides a sulfur-phosphorus-nitrogen-boron type extreme pressure antiwear additive and a preparation method thereof, and the gear oil. The sulfur-phosphorus-nitrogen-boron type extreme pressure antiwear additive has a structural formula as described in the specification. In the structural formula, R1 is C4-C12 alkyl; R2 is C8-C16 alkyl; R3 is hydrogen or C4-C12 alkyl; R4 is hydrogen or C1-C8 alkyl; R5 is hydrogen or C1-C8 alkyl; and R6 is hydrogen or C1-C8 alkyl. The sulfur-phosphorus-nitrogen-boron type extreme pressure antiwear additive has good compatibility with base oil, and can assist base oil to achieve good anti-wear performance.

Description

technical field [0001] The invention belongs to the technical field of gear oil anti-wear, and specifically relates to a sulfur, phosphorus, nitrogen and boron type extreme pressure anti-wear agent, a preparation method thereof and a gear oil. Background technique [0002] In recent years, with the improvement of vehicle design, the working pressure and temperature of vehicle gear oil have been continuously increased, and higher requirements have been put forward for the performance of gear oil such as extreme pressure, anti-wear and oxidation resistance. With the continuous extension of vehicle maintenance mileage, customers have put forward higher and higher requirements for the oil change interval of oil products. The corresponding oil products are required to have long-term extreme pressure, wear resistance, oxidation resistance and other properties. As an important part of gear oil, the extreme pressure antiwear agent is closely related to the various properties of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10M137/16C10M139/00C10N30/06C10N40/04C10N30/10
CPCC10M137/16C10M139/00C10N2030/06C10N2030/10C10N2030/56C10N2040/04
Inventor 王茁桃春生朱雅男王清国王彦东
Owner CHINA FIRST AUTOMOBILE