Supported catalyst for 1-hexene self-metathesis and method for its preparation

By using a combination of silica-alumina type mesoporous molecular sieve support and specific compounds in the 1-hexene self-disproportionation catalyst, the problems of insufficient exposure of active sites and easy ruthenium metal detachment were solved, achieving efficient 1-hexene conversion and highly selective 5-decene production. The catalyst is reusable and has no by-products.

CN118056617BActive Publication Date: 2026-06-23PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2022-11-15
Publication Date
2026-06-23

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Abstract

The application discloses a supported catalyst for 1-hexene self-disproportionation and a preparation method thereof. The raw materials of the supported catalyst for 1-hexene self-disproportionation include a ruthenium carbene complex, a chlorosilane, a phosphine-siloxane compound and a silica-alumina mesoporous molecular sieve. The silica-alumina mesoporous molecular sieve has a silica-aluminum molar ratio of 25-30, a specific surface area of 550-850 m 2 / g, a relative crystallinity of 90-95%, a pore size of 2.5-3.5 nm and a pore volume of 0.80-1.0 cm 3 / g. The active sites of the supported catalyst for 1-hexene self-disproportionation are fully exposed, the loading amount of the ruthenium carbene complex is high, the metal ruthenium is not easy to fall off, and the preparation process is simple, so that the 1-hexene self-disproportionation reaction can be effectively initiated.
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