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Full-ester type environmental-protection diesel antiwear agent and preparation method thereof

An anti-wear agent and environmental protection technology, which is applied in the field of diesel anti-wear agent and its preparation, can solve the problems such as the effect is not very good, and achieve the effect of remarkable anti-wear effect

Active Publication Date: 2016-09-14
王严绪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the diesel antiwear agents that replace sulfur agents are mainly fatty acids and fatty acid esters, but the effect is not very good, mainly due to antiwear properties, freezing point and acid value

Method used

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  • Full-ester type environmental-protection diesel antiwear agent and preparation method thereof
  • Full-ester type environmental-protection diesel antiwear agent and preparation method thereof
  • Full-ester type environmental-protection diesel antiwear agent and preparation method thereof

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preparation example Construction

[0012] The preparation method of the whole ester environment-friendly diesel oil antiwear agent of the present invention is based on resorcinol, reacts with acetic anhydride and ethylene oxide, then adds potassium hydroxide, and adopts a method of reducing pressure to obtain resorcinol ester solution, then react with ricinoleic acid, methyl alcohol, toluene, wash and filter with water after adding ethanol, and make full ester environmental protection diesel oil antiwear agent, the steps are as follows:

[0013] 1) Synthesis of Resorcinol Ester

[0014] Put resorcinol and acetic anhydride in a container, pass through ethylene oxide, react at 100°C-110°C for 2-3 hours, then add potassium hydroxide, increase the temperature to 110°C-120°C, and negative pressure 100mmHg Continue to react under the conditions for 4-5 hours to obtain resorcinol ester, the mass ratio of resorcinol: acetic anhydride: ethylene oxide: potassium hydroxide = 2-3:3-4:1-1.5: 1~1.5;

[0015] 2) Synthesis o...

Embodiment 1

[0023] 1. Synthesis of Resorcinol Ester

[0024] Put resorcinol and acetic anhydride in a container, pass through ethylene oxide, react at 100°C for 2 hours, then add potassium hydroxide, increase the temperature to 110°C, and continue to react for 4 hours under a negative pressure of 100mmHg to obtain Resorcinol ester, the mass ratio of resorcinol: acetic anhydride: ethylene oxide: potassium hydroxide=3:4:1.5:1.5;

[0025] 2. Synthesis of full ester environment-friendly diesel antiwear agent

[0026] Mix 50 grams of resorcinol ester prepared above with 4.5 grams of ricinoleic acid, 3 grams of methanol, and 4.5 grams of toluene, stir evenly, and react for 4 hours at a temperature of 90 ° C and a negative pressure of 100 mmHg; adjust the negative pressure at 70 mmHg Under certain conditions, increase the temperature to 180°C, continue the reaction for 3 hours, evacuate until the pressure reaches 0.095MPa, cool down to 60°C, add 6 grams of ethanol; wash with water three times, ...

Embodiment 2

[0030] 1. Synthesis of Resorcinol Ester

[0031] Put resorcinol and acetic anhydride in a container, pass through ethylene oxide, react at 110°C for 3 hours, then add potassium hydroxide, increase the temperature to 120°C, and continue to react for 5 hours under a negative pressure of 100mmHg to obtain Resorcinol ester, the mass ratio of resorcinol: acetic anhydride: ethylene oxide: potassium hydroxide = 2:3:1:1;

[0032] 2. Synthesis of full ester environment-friendly diesel antiwear agent

[0033] Mix 100 grams of resorcinol ester prepared above with 8 grams of ricinoleic acid, 6.5 grams of methanol, and 8 grams of toluene, stir evenly, and react for 4 hours at a temperature of 95° C. and a negative pressure of 100 mmHg; adjust the negative pressure at 70 mmHg Under certain conditions, increase the temperature to 190°C, continue the reaction for 4 hours, evacuate until the pressure reaches 0.095MPa, cool down to 60°C, add 12 grams of ethanol; wash with water three times, an...

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Abstract

The invention discloses a full-ester type environmental-protection diesel antiwear agent and a preparation method thereof, wherein the antiwear agent is prepared from resorcinol ester, castor oil, methanol, toluene and ethanol. Resorcinol ester is prepared from resorcinol, acetic anhydride, ethylene oxide and potassium hydroxide. The antiwear agent is a full-ester environmental-protection diesel antiwear agent, is an environmental-protection antiwear agent required to be added in vehicle diesel; after the antiwear agent is added, the diesel meets the national V emission standard; because of no sulfur and chlorine and high limitation of boron, silicon and other elements, the anti-wear effect is good; the antiwear agent is an updated and upgraded product for conventional fatty acid type and fatty ester type diesel additives and has the advantages of energy saving, environmental protection, high efficiency and the like, the production process is simple, low in cost and high in yield.

Description

technical field [0001] The invention relates to a diesel antiwear agent and a preparation method thereof, in particular to an oil-soluble full ester environment-friendly diesel antiwear agent compound and a preparation method thereof. Background technique [0002] In order to meet the new requirements of the National V diesel standard, the replacement of diesel antiwear agents is imminent. In the past, sulfur was added to diesel to play an anti-wear effect. With the increasing number of urban vehicles and the increasing air pollution, environmental protection and emission reduction have become the top priority. At present, the diesel antiwear agents that replace sulfur agents are mainly fatty acids and fatty acid esters, but the effect is not very good, mainly due to antiwear properties, freezing point and acid value. Therefore, new high-efficiency and environment-friendly diesel antiwear agents are urgently needed in the market. Contents of the invention [0003] The ob...

Claims

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Application Information

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IPC IPC(8): C10L1/19C10L10/08
CPCC10L1/19C10L10/08
Inventor 王严绪
Owner 王严绪