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Thiophosphonate compound as well as preparation method and application thereof

A technology of thiophosphonate and compounds, which is applied in the field of thiophosphonate compounds, can solve the problem of inability to measure anti-wear performance and load-bearing capacity, inconsistent development trends, lack of extreme-pressure anti-wear agent load-bearing capacity and anti-wear properties. 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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  • Thiophosphonate compound as well as preparation method and application thereof
  • Thiophosphonate compound as well as preparation method and application thereof
  • Thiophosphonate compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1 Preparation of epoxidized cardanol

[0056] Take 100 g of cardanol, 8 g of formic acid, 0.3 g of sulfuric acid, and 200 g of hydrogen peroxide, add them to a three-necked flask with mechanical stirring, reflux condenser and temperature control, turn on stirring and heating. Maintain the reaction temperature at 70°C and react for 3 hours. After the reaction, the temperature was lowered to obtain a brown-red transparent liquid. The reaction product was filtered and washed with 5% KOH solution for alkaline washing, and then washed with distilled water to neutrality, and the organic phase was distilled under reduced pressure at 100Pa and 150℃ for 1h to remove water and unreacted raw materials to obtain orange-red transparent liquid . The product conversion rate is 96.2%, and the purity of the epoxidized cardanol is greater than 98%.

Embodiment 2

[0057] Example 2 Preparation of phenylthiophosphonic acid diepoxidized cardanol ester

[0058] Add 22g of epoxidized cardanol prepared in Example 1, 4g of triethylamine and 20g of toluene into the reaction flask, turn on heating and stirring, add 7.5g of phenylthiophosphonic dichloride, and maintain the reaction temperature at 70°C. 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 to neutrality, 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 brown-yellow transparent liquid with a reaction conversion rate of 93.6%.

Embodiment 3

[0059] Example 3 Preparation of phenylthiophosphonic acid diepoxidized cardanol ester

[0060] Add 22g of the epoxidized cardanol prepared in Example 1, 8g of triethylamine and 50g of toluene into the reaction flask, turn on the heating and stirring, add 5g of phenylthiophosphonic dichloride, maintain the reaction temperature at 90°C, and react 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 it was 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 brown-yellow transparent liquid with a reaction conversion rate of 95.1%.

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Abstract

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

Description

Technical field [0001] The present invention relates to a thiophosphonate compound, in particular to a thiophosphonate compound suitable for use as an antiwear agent. Background technique [0002] Lubrication is generally divided into fluid lubrication and boundary lubrication. In boundary lubrication, extreme pressure anti-wear agents are indispensable additives. They can be adsorbed on or react with the metal surface to form an adsorption film or reaction film to prevent metal surface Scuffing or even welding is used to improve the lubricity and abrasion resistance of oil. Mainly include sulfur-containing extreme pressure anti-wear agent, chlorine-containing extreme pressure anti-wear agent, phosphorus-containing extreme pressure anti-wear agent, nitrogen-containing extreme pressure anti-wear agent, metal salt extreme pressure anti-wear agent, boron-containing extreme pressure anti-wear agent, etc. Among them, the sulfur phosphorus agent containing both sulfur and phosphorus i...

Claims

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Application Information

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IPC IPC(8): C07F9/655C10M137/14C10N30/06
CPCC07F9/65505C10M137/14C10M2223/065
Inventor 陈晓伟魏克成刘辉梁宇翔
Owner CHINA PETROLEUM & CHEM CORP
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