Synthesis method of polymer catalyst containing tertiary amine group and organic silicon high-boiling residue catalytic cracking process thereof

CN120247741APending Publication Date: 2025-07-04CHINA THREE GORGES UNIV +1
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Patent Information

Application Number
CN202510359998.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

The prior art has problems such as high energy consumption, large equipment investment, and by-products affecting product purity and environmental pollution when dealing with high-boiling materials of silicones. The catalyst is easily lost and the reaction conditions are harsh.

Method used

A block polymer catalyst containing tertiary amine groups is used to prepare the catalyst through polymerization, and a catalytic cracking reaction is carried out at 100-300°C to convert the silicone high boiling substance into dimethyl dichlorosilane monomer, with a cracking rate of more than 50% and a selectivity of more than 80%.

Benefits of technology

It has achieved efficient conversion of high-boiling silicones, high catalytic activity and good selectivity, reducing waste, environmentally friendly, and reducing energy consumption and equipment investment.

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Abstract

The invention relates to the field of high-boiling-point substance catalytic cracking cyclic utilization in organic silicon monomer production, and discloses a synthesis method of a polymer catalyst containing a tertiary amine group in a molecular chain and application of the polymer catalyst to organic silicon high-boiling-point substance catalytic cracking. The specific embodiment shows that the selectivity of dimethyl dichlorosilane is as high as 63% while the cracking rate of the high-boiling residues reaches 75%. Compared with a traditional method, the method has the remarkable advantages of being high in catalytic activity, high in dimethyl dichlorosilane selectivity, high in high-boiling-point substance conversion rate, small in waste amount, environmentally friendly and extremely small in residue amount, and a new way is provided for high-value utilization of the organic silicon waste.
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