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

Ester-type diesel oil antiwear agent, and preparation method thereof

An anti-wear agent and diesel technology, applied in the field of diesel anti-wear agent, can solve the problems of residual metal ions, affecting product quality, complex catalyst process, etc., achieving the effect of simple process and avoiding separation and refining units

Inactive Publication Date: 2017-09-15
西安万德能源化学股份有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fatty acid ester type antiwear agents are generally prepared by fatty acid and alcohol under the action of a catalyst. The catalyst needs to be added during the esterification process. On the one hand, the process of post-processing to remove the catalyst is complicated. On the other hand, it may cause metal ions in the product to remain and affect product quality.

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
  • Ester-type diesel oil antiwear agent, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] The preparation method of the ester type diesel oil antiwear agent that the present invention relates to comprises the following steps:

[0019] Step 1: adding the mixed fatty acids into the autoclave;

[0020] Step 2: Turn on the vacuum, replace with nitrogen three times, and raise the temperature to 80°C~120°C;

[0021] Step 3: Slowly feed the epoxide, the reaction temperature is controlled at 100~150°C, and the pressure is controlled at 0.3~0.6MPa; the molar ratio of the mixed fatty acid to the epoxide is 1: (1~5);

[0022] Step 4: After the addition of epoxy oxide is completed, continue to react at 130-180°C for 1-3 hours, and stop the reaction when the pressure drops to 0.02-0.03MPa.

[0023] Described epoxide is ethylene oxide or propylene oxide.

[0024] The mixed fatty acid is oleic acid.

Embodiment 1

[0026] Pump 282g (1mol) of oleic acid into the autoclave, raise the temperature to 80°C, evacuate, then replace with nitrogen three times, raise the temperature to 120°C, feed 58g (1mol) of propylene oxide, control the pressure at 0.6MPa, and the feeding is completed Afterwards, raise the temperature to 150°C, react for 1 hour, reduce the pressure of the kettle to 0.02MPa, lower the temperature to below 80°C, and the product obtained is the ester type antiwear agent.

Embodiment 2

[0028] Pump 282g (1mol) of oleic acid into the autoclave, raise the temperature to 80°C, evacuate, then replace it with nitrogen three times, raise the temperature to 120°C, feed 145g (2.5mol) of propylene oxide, control the pressure at 0.5MPa, and carry out After the material is completed, the temperature is raised to 150°C, reacted for 1.5 hours, and then 145g (2.5mol) of propylene oxide was introduced, the pressure was controlled at 0.6MPa, and the reaction was continued at 160°C for 1.5 hours, the pressure of the kettle was reduced to 0.02MPa, and the temperature was lowered to below 80°C. The resulting product is an ester type antiwear agent.

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 relates to an ester-type diesel oil antiwear agent, and a preparation method thereof. The preparation method comprises following steps: a mixed aliphatic acid is delivered into an autoclave; the autoclave is pumped to be vacuum, nitrogen displacement is carried out for three times, and the temperature is increased to 80 to 120 DEG C; an epoxide is added slowly, reaction temperature is controlled to be 100 to 150 DEG C, pressure is controlled to be 0.3 to 0.6MPa; the molar ratio of the mixed aliphatic acid to the epoxide is controlled to be 1: (1-5); after adding of the epoxide, reaction is carried out continuously for 1 to 3h at 130 to 180 DEG C, and reaction is stopped when the pressure reduces to 0.02 to 0.03MPa. According to the preparation method, the epoxide is prepared into the ester-type diesel oil antiwear agent via addition reaction, no catalyst is added in production process, later refining caused by introduction of impurity ions is avoided, and the preparation method is simple, is economical, and is friendly to the environment.

Description

technical field [0001] The invention relates to a diesel antiwear agent, in particular to an ester type diesel antiwear agent and a preparation method thereof. Background technique [0002] With the improvement of environmental protection requirements, the content of sulfur and nitrogen in diesel oil for vehicles is further reduced. The refinery uses desulfurization and denitrification technology to reduce the content of sulfur and nitrogen in diesel oil, but the content of natural polar compounds with lubricating properties also increases. Reduced, thereby greatly reducing the lubricating performance of diesel, causing engine wear. Currently commercialized diesel antiwear agents mainly include fatty acid type antiwear agents and fatty acid ester type antiwear agents. Fatty acid ester antiwear agents are generally prepared by fatty acids and alcohols under the action of catalysts. Catalysts need to be added during the esterification process. On the one hand, the post-treatm...

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 Applications(China)
IPC IPC(8): C07C67/26C07C69/58C10M129/76C10N30/06C10N40/25
CPCC07C67/26C10M129/76C10M2207/289C10N2030/06C10N2040/252C07C69/58
Inventor 汪希领王育斌杨亚妮李海斌丁金皓岳富民贾建成
Owner 西安万德能源化学股份有限公司