A kind of immobilized ionic liquid catalyst and its application in the preparation of synthetic ester lubricating oil

The technology of ionic liquid and catalyst is applied in the field of immobilized ionic liquid catalyst and in the preparation field of synthetic ester lubricating oil, which can solve the problems of high cost, large energy consumption, large amount of consumption, etc., and achieves simple synthesis method and high catalyst activity. , the effect of speeding up the process of industrial application
CN105879907BActive Publication Date: 2019-06-14LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2019-06-14

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Abstract

The invention discloses a solid-supported ionic liquid catalyst. The catalyst is prepared by the following method: 1) Stir ionic liquid, absolute ethanol, and tetraethyl orthosilicate at a constant temperature of 40oC~70oC until the ionic liquid is dissolved and the solution is clear. , then add hydrochloric acid solution, continue stirring for 1 h to 3 h, and then let it stand for 12 h to 24 h to obtain the initial product of the mesoporous silica solid-supported ionic liquid catalyst; 2) The mesoporous silica solid-supported ionic liquid catalyst is obtained The initial product of the silicon solid-supported ionic liquid catalyst is dried under vacuum at 80oC~100oC for 3 h~6 h, and the mesoporous silica solid-supported ionic liquid catalyst is obtained. The invention also discloses the application of the catalyst in the preparation of synthetic ester lubricating oil. The catalyst synthesis method involved in the present invention is simple and has high catalyst activity, which greatly accelerates the process of its industrial application.
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Description

technical field

[0001] The invention relates to a solid-supported ionic liquid catalyst and its application in the preparation of synthetic ester lubricating oil. Background technique

[0002] Synthetic ester base oil has been playing an indispensable role in the aviation field as a key component of aviation lubricants due to its excellent high and low temperature performance, lubricating performance and other good comprehensive properties; It has the characteristics of blending, renewable sources of raw materials, and environmental friendliness, so it has important potential applications in industries such as automobiles, metallurgy, and cement. A lot of research work has been carried out internationally on the structure-activity relationship, preparation process, performance and application of synthetic esters, but the depth and systematicness of the research still need to be further deepened and improved. Domestic synthetic ester basic theory and key technologies are lac...

Claims

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