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Vulcanized thiophosphonate sulfide compound as well as preparation method and application thereof

A technology of phosphonate and compound, which is applied in the field of sulfurized phosphonothioate compound, can solve the problem of inconsistent development trend, inability to measure anti-wear performance and load-bearing capacity, lack of extreme-pressure anti-wear agent load-bearing capacity and resistance Grinding performance and other issues

Active Publication Date: 2020-04-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN 101724492B discloses a zinc thiophosphate type extreme pressure antiwear agent. Compared with T405, it has better load carrying capacity, anti-oxidation stability and antiwear performance. The load-bearing capacity and anti-wear performance of the extreme pressure anti-wear agent, so its real anti-wear and wear-reducing performance and load-bearing capacity cannot be measured. In addition, this invention is an organic metal salt, which is inconsistent with the development trend of ash-free lubricant additives

Method used

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  • Vulcanized thiophosphonate sulfide compound as well as preparation method and application thereof
  • Vulcanized thiophosphonate sulfide compound as well as preparation method and application thereof
  • Vulcanized thiophosphonate sulfide compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The preparation of embodiment 1 sulfurized cardanol

[0064] Put 62g of cardanol (about 0.2mol) and 12.8g of sulfur powder (0.4mol) into a 250ml three-necked reaction flask, start stirring and heating. The reaction temperature was maintained at 190° C., and the reaction was continued for 3 hours. After the reaction was completed, the temperature was lowered, and a dark brown-red viscous liquid was obtained after filtration, which was cardanol sulfide, and the conversion rate of the product was 89.3%.

Embodiment 2

[0065]The preparation of embodiment 2 phenylthiophosphonic acid cardanol ester

[0066] Add 20g of cardanol, 4g of triethylamine and 20g of toluene into the reaction flask, start heating and stirring, add 7.5g of phenylphosphonothioate dichloride, maintain the reaction temperature at 70°C, and react for 5 hours. After the reaction, the temperature was lowered to obtain a brown-red transparent liquid. The reaction product was washed with distilled water until neutral, and the organic phase was distilled under reduced pressure at 100 Pa and 150° C. for 1 h to remove water and solvent to obtain a brownish-yellow transparent liquid with a conversion rate of 94.8%.

Embodiment 3

[0067] The preparation of embodiment 3 phenylthiophosphonic acid cardanol disulfide

[0068] Add 25g of sulfurized cardanol prepared in Example 1, 8g of triethylamine and 50g of toluene into the reaction flask, start heating and stirring, add 5g of phenylphosphonothioate dichloride, maintain the reaction temperature at 90°C, and react for 4 hours . After the reaction, the temperature was lowered to obtain a brown-red transparent liquid. The reaction product was washed with distilled water until neutral, and the organic phase was distilled under reduced pressure at 100 Pa and 150° C. for 1 h to remove water and solvent to obtain a brownish-yellow transparent liquid with a conversion rate of 95.1%.

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Abstract

The invention provides a vulcanized thiophosphonate compound as well as a preparation method and application thereof. The structure of the vulcanized thiophosphonate compound is shown as a general formula (I), wherein the definition of each group is shown in the specification. The vulcanized thiophosphonate compound can be used as an extreme pressure anti-wear agent and applied to lubricating oiland lubricating grease. The vulcanized thiophosphonate compound provided by the invention has outstanding bearing capacity and excellent wear resistance and anti-attrition performance.

Description

technical field [0001] The present invention relates to a sulfurized phosphonothioate compound, and more particularly to a sulfurized phosphonothioate compound suitable for use as an antiwear agent. Background technique [0002] Lubrication is generally divided into fluid lubrication and boundary lubrication. In the state of boundary lubrication, the extreme pressure antiwear agent is an essential additive, which can be adsorbed on the metal surface or react with the metal surface to form an adsorption film or a reaction film to prevent the metal surface from Scratching or even welding, used to improve the lubricity and anti-wear properties of oil. Mainly include sulfur-containing extreme pressure anti-wear agents, chlorine-containing extreme-pressure anti-wear agents, phosphorus-containing extreme-pressure anti-wear agents, nitrogen-containing extreme-pressure anti-wear agents, metal salt extreme-pressure anti-wear agents, boron-containing extreme-pressure anti-wear agents,...

Claims

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Application Information

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IPC IPC(8): C07F9/6561C07F9/6553C10M137/14C10N30/06
CPCC07F9/6561C07F9/655309C10M137/14C10M2223/065
Inventor 陈晓伟魏克成周云帆梁宇翔
Owner CHINA PETROLEUM & CHEM CORP
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