一种含钨金属氧化物催化剂及其制备方法和应用

The prepared tungsten-containing metal oxide catalyst β-CD-TBAT solved the mass transfer problem in the selective oxidation process of cyclohexene, achieving efficient and stable adipic acid production and meeting the requirements of green chemical industry.

CN121819938BActive Publication Date: 2026-07-17CHONGQING THREE GORGES UNIV
View PDF 3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING THREE GORGES UNIV
Filing Date
2026-01-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing industrial methods for producing adipic acid suffer from severe equipment corrosion, serious environmental pollution, and unstable catalysts, making it difficult to meet the requirements of green chemical development.

Method used

A tungsten-containing metal oxide catalyst, β-CD-TBAT, was prepared by reacting β-cyclodextrin with toluenesulfonyl chloride, 2-chloroethylamine hydrochloride, and triethylenediamine. This catalyst was used for the selective oxidation of cyclohexene, solving the mass transfer problem and improving the stability of the catalyst.

Benefits of technology

It significantly improved the solubility and mass transfer rate of cyclohexene in the aqueous phase, enhanced the yield and purity of adipic acid, and maintained excellent stability and selectivity during recycling, thus reducing operating costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121819938B_ABST
    Figure CN121819938B_ABST
Patent Text Reader

Abstract

一种含钨金属氧化物催化剂,其化学式为C94H160N4O68WO4,结构式为。本发明通过La2(WO4)3、Ag2WO4等稀土钨酸盐与β‑CD‑TBA合成的催化剂能有效促进环己烯由有机相向水相的传递,从而有效提高环己烯在水相中的表观溶解度,环己烯在水中的平衡质量浓度达到5.67 g / L,是纯水体系中的929倍,其传质速率较没有催化剂的纯水中提高了约945倍,在以过氧化氢为氧化剂,催化环己烯氧化制备己二酸的体系中,有效提高了环己烯的转化效率、过氧化氢的利用率,从而提高己二酸的产率,并有效提高了制备的己二酸的纯度。此外,该催化剂具有优异的结构稳定性,在循环催化使用中保持优异的循环催化稳定性。
Need to check novelty before this filing date? Find Prior Art