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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 12594543 B1

PDFFull Text
Date of Patent:
Apr. 07, 2026

Filed:

May. 17, 2023

Method for acetylene hydrochlorination to vinyl chloride catalyzed by ultra-low content aurum-based material

Applicants:

Nanjing Tech University, Nanjing, CN;

Cnsig Jilantai Chlor-alkali Chemical Co., Ltd., Inner Mongolia, CN;

Inventors:

Chuan Wang, Nanjing, CN;

Guangbin Wang, Inner Mongolia, CN;

Lanxin Ye, Nanjing, CN;

Jie Zhou, Inner Mongolia, CN;

Heng Wang, Nanjing, CN;

Ming Xu, Inner Mongolia, CN;

Wensai Zhu, Nanjing, CN;

Guoqing Guo, Inner Mongolia, CN;

Hongxia Liu, Nanjing, CN;

Hongda Li, Inner Mongolia, CN;

Wei Su, Inner Mongolia, CN;

Miao Chen, Inner Mongolia, CN;

Assignees:

Nanjing Tech University, Nanjing, CN;

CNSIG JILANTAI CHLOR-ALKALI CHEMICAL CO., LTD., Inner Mongolia, CN;

Attorney:

MUNCY, GEISSLER, OLDS & LOWE, P.C.

Primary Examiner:

Jun Li

Int. Cl.
CPC ...
B01J 21/18 (2006.01); B01J 23/52 (2006.01); B01J 27/24 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); C07C 17/08 (2006.01);
U.S. Cl.
CPC ...
B01J 23/52 (2013.01); B01J 21/18 (2013.01); B01J 27/24 (2013.01); B01J 37/0036 (2013.01); B01J 37/0205 (2013.01); B01J 37/08 (2013.01); C07C 17/08 (2013.01);
Abstract

In a method for acetylene hydrochlorination to vinyl chloride catalyzed by ultra-low content aurum-based material, a nitrogen-modified activated carbon support is obtained by using 1,10-phenanthroline as a modifier. A trace amount of aurum is used as a main active component and an organic solvent with a low polarity and a low boiling point, isopropanol, is used as a solvent. An ultra-low content of aurum-based catalyst with the aurum loading amount of 0.01 wt % using the above nitrogen-modified activated carbon as a support is prepared by improving the synthesis procedure, and the efficiency of the catalyst is significantly improved. The catalyst has high activity and vinyl chloride selectivity for acetylene hydrochlorination to vinyl chloride, which is low cost, no mercury pollution, simple in preparation process and expansibility, and has great industrial application value.

Find Patent Forward Citations

Wang, Chuan. (2026). Method for acetylene hydrochlorination to vinyl chloride catalyzed by ultra-low content aurum-based material (U.S. Patent No. 12594543). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12594543

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

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