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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12599899 B1

PDFFull Text
Date of Patent:
Apr. 14, 2026

Filed:

Sep. 05, 2023

Preparation method of alkali metal ion modified titanium silicalite zeolite for gas phase epoxidation of propylene and hydrogen peroxide

Applicants:

Dalian University of Technology, Dalian, CN;

Dalian Qiyuan Technology Co., Ltd., Dalian, CN;

Inventors:

Hongchen Guo, Dalian, CN;

Cuilan Miao, Dalian, CN;

Quanren Zhu, Dalian, CN;

Ning He, Dalian, CN;

Yanhui Yi, Dalian, CN;

Jiaxu Liu, Dalian, CN;

Assignees:

DALIAN UNIVERSITY OF TECHNOLOGY, Dalian, CN;

DALIAN QIYUAN TECHNOLOGY CO., LTD., Dalian, CN;

Attorney:

Muncy, Geissler, Olds & Lowe, P.C.

Primary Examiner:

Brian A Mccaig

Int. Cl.
CPC ...
B01J 29/89 (2006.01); B01J 37/00 (2006.01); B01J 37/04 (2006.01); B01J 37/06 (2006.01); B01J 37/08 (2006.01); B01J 37/10 (2006.01);
U.S. Cl.
CPC ...
B01J 29/89 (2013.01); B01J 37/009 (2013.01); B01J 37/04 (2013.01); B01J 37/06 (2013.01); B01J 37/082 (2013.01); B01J 37/10 (2013.01); B01J 2229/18 (2013.01);
Abstract

An alkali metal ion modified titanium silicalite zeolite for gas phase epoxidation of propylene and hydrogen peroxide and a preparation method thereof. The method includes, at first step: preparing an alkali metal hydroxide modification solution; at second step: conducting controlled hydrothermal treatment on a TS-1 zeolite matrix by using an alkali metal hydroxide solution; and at third step: conducting post-treatment on the hydrothermally modified TS-1 zeolite, including solid-liquid separation, washing, drying and calcining. In the washing process, the modified TS-1 zeolite wet material is washed with a low concentration alkali metal hydroxide solution; alkali metal ions are reserved on the silicon hydroxyl of the modified titanium silicalite zeolite; and an infrared characteristic absorption band of a framework titanium active center modified by the alkali metal ions is in a range above 960 cmand below 980 cm.

Find Patent Forward Citations

Guo, Hongchen. (2026). Preparation method of alkali metal ion modified titanium silicalite zeolite for gas phase epoxidation of propylene and hydrogen peroxide (U.S. Patent No. 12599899). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12599899

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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