Preparation method of ester diesel anti-wear agent

A technology of antiwear agent and diesel oil, which is applied in the field of ester type antiwear agent, which can solve problems such as decreased matching accuracy, unstable idling speed, and insufficient engine power, and achieves good low-temperature storage performance, good anti-wear effect, and strong demulsibility Effect

Inactive Publication Date: 2018-07-13
NINGXIA PAGODA CHEM CENT LAB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Diesel is not only used as fuel in the engine, but also as a lubricant for the oil transfer pump and high-pressure oil pump. If the lubricity of diesel is not good, it will not be able to provide reliable lubrication for the oil pump, which will lead to excessive wear of the precision parts of the engine, decreased matching accuracy, and diesel mist. Problems such as poor cooling, insufficient engine power or unstable idle speed will reduce the life of the engine, and may cause oil leakage from the oil pump in severe cases.

Method used

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  • Preparation method of ester diesel anti-wear agent

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Preparation of anti-wear agent: Add 56 grams of oleic acid and 49 grams of ethylene glycol into the reaction kettle, then add 1.6 grams of ferric hydroxide catalyst and 1.05 grams of toluene, stir and raise the temperature to 80°C-130°C, under nitrogen protection , the reaction time is 4-6 hours, then lower the temperature to 30°C-60°C and add 1.05 grams of small molecule alcohol solvent, raise the temperature to 90°C-120°C for 2 hours, vacuumize and dehydrate for 30-60 minutes, and discharge the catalyst to filter and Recycle.

Embodiment 2

[0017] Preparation of anti-wear agent: Add 56 grams of oleic acid and 49 grams of ethylene glycol into the reaction kettle, then add 1.05 grams of ferric hydroxide catalyst and 2.2 grams of toluene, stir and raise the temperature to 130 ° C, under the protection of nitrogen, the reaction time 4-6 hours, then lower the temperature to 60°C and add 2.1 grams of small molecule alcohol solvent, raise the temperature to 120°C to react for 2 hours, vacuumize and dehydrate for 30 minutes, and discharge the catalyst to filter and recover.

Embodiment 3

[0019] Preparation of anti-wear agent: Add 46 grams of oleic acid and 41 grams of ethylene glycol into the reaction kettle, then add 1.3 grams of ferric hydroxide catalyst and 0.87 grams of toluene, stir and raise the temperature to 110 ° C, under the protection of nitrogen, the reaction time 4-6 hours, then lower the temperature to 40°C and add 0.87 g of small molecule alcohol solvent, raise the temperature to 90°C to react for 2 hours, vacuumize and dehydrate for 50 minutes, discharge the catalyst, filter and recover.

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Abstract

The invention relates to a diesel anti-wear agent with low cost and excellent anti-wear effect. The diesel anti-wear agent has the characteristics of low acid value, good low-temperature storage performance, lubricating property and the like. The ester diesel anti-wear agent provided by the invention consists of higher fatty acid, polyol, a catalyst, a water carrying agent and a small-molecular alcohol solvent. The preparation method comprises the following steps: under the protection of nitrogen, adding the higher fatty acid and the polyol into a reaction kettle according to a certain proportion, adding the catalyst and the water carrying agent, carrying out heating to 80-130 DEG C under mechanical stirring, carrying out a reaction for 4-6 hours, then adding the small-molecular alcohol solvent when the temperature is reduced to 30-60 DEG C, then carrying out heating to 90-120 DEG C, carrying out a reaction for 2 hours, carrying out vacuum dehydration on the reaction system for 30-60 minutes after the reaction is finished, and filtering and recycling the catalyst for reuse. The diesel anti-wear agent related to by the invention has a simple and efficient synthetic method, is environmentally friendly, and has strong controllability of process parameters.

Description

technical field [0001] The invention belongs to a diesel antiwear agent, in particular to a high-performance, environment-friendly ester type antiwear agent. Background technique [0002] Diesel is not only used as fuel in the engine, but also as a lubricant for the oil transfer pump and high-pressure oil pump. If the lubricity of diesel is not good, it will not be able to provide reliable lubrication for the oil pump, which will lead to excessive wear of the precision parts of the engine, decreased matching accuracy, and diesel mist. Problems such as poor cooling, insufficient engine power or unstable idle speed will reduce the life of the engine, and may cause oil leakage from the oil pump in severe cases. Anti-wear agent is a high-tech engine oil (lubricating oil) additive, which is processed by various technical means, which can reduce engine wear and increase engine power, so it is also called engine maintenance agent or powerful repair agent to improve the lubrication ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/14C10L1/19C10L10/08
Inventor 贾昕孙培华田宏强张和张秉钧
Owner NINGXIA PAGODA CHEM CENT LAB CO LTD
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