Isomerization reaction catalyst as well as preparation method and application thereof

By using isomerization reaction catalysts prepared by sodium metaaluminate, silica sol, sodium hydroxide, hexamethyleneimine and distilled water, the existing catalyst process is solved, and an efficient and safe isomerization reaction is achieved, which is suitable for industrial production.

CN119680617APending Publication Date: 2025-03-25GUANGDONG HUAJINDA NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202411872546.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The existing α-olefin isomerization catalysts are complex in production processes and use metals that are expensive or dangerous, and are not suitable for industrial production.

Method used

A catalyst with excellent catalytic properties is provided, including sodium metaaluminate, silica sol, sodium hydroxide, hexamethyleneimine and distilled water, through specific raw material ratios and preparation steps, including stirring and mixing, crystallization, suction filtration, washing, drying, calcining and ion exchange.

Benefits of technology

The catalyst exhibits high selectivity and gentle reaction in isomerization reaction, effectively reducing the polymerization and blockage of olefins, improving the service life of the catalyst, simplifying the preparation process, reducing costs, and suitable for industrial production.

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Abstract

The invention relates to the technical field of isomerization reaction catalysts, in particular to an isomerization reaction catalyst and a preparation method and application thereof.Sodium metaaluminate, silica sol, sodium hydroxide and hexamethyleneimine are added into distilled water to be stirred and mixed to obtain a reaction mixture, the reaction mixture comprises SiO2, Al2O3, NaOH, HMI and H2O, the reactant mixture is crystallized to obtain a crude product, and the crude product is dried to obtain the isomerization reaction catalyst. Carrying out suction filtration, washing and drying on the crude product to obtain molecular sieve raw powder; the molecular sieve raw powder is roasted and then is subjected to ion exchange by using an ammonium nitrate solution, the isomerization reaction catalyst is obtained after continuous roasting, a proper internal olefin raw material is obtained by using the catalyst in cooperation with isomerization condition control, and ASA synthesized by the internal olefin is excellent in paper sizing performance.
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