HYDROGEN CHLORIDE CONVERSION CATALYST - XIAN MODERN CHEMISTRY RES INST

Title:

HYDROGEN CHLORIDE CONVERSION CATALYST

Document Type and Number:

WIPO Patent Application WO/2018/145344

Kind Code:

A1

Abstract:

A hydrogen chloride conversion catalyst, characterized in that based on mass percentage, a catalyst precursor consists of: 85% to 90% of component A, 5% to 10% of component B, 1% to 2% of component C, 3% to 5% of component D, and 1% to 2% of component E, the component A being activated alumina, the component B being one or more of Nb, Mo, Ta, and W, the component C being K+ or Cs+, the component D being ammonium fluoride, and the component E being silicon oxide. The preparation of the catalyst comprises the steps of: first, mixing the component A and a part of the component B, grinding and baking the resultant to obtain a catalyst powder; second, using the remaining part of the component B in combination with the component C to impregnate and modify the catalyst powder; and finally, mixing the modified catalyst powders with the component D and the component E, performing granulation, compression molding, and baking so as to obtain a hydrogen chloride conversion catalyst having a high conversion rate. The catalyst is suitable for the gas phase oxidation of hydrogen chloride to produce chlorine gas.

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Inventors:

YANG JIANMING (CN)
HUI FENG (CN)
YUAN JUN (CN)
LV JIAN (CN)
ZHAO FENGWEI (CN)
ZHANG QIAN (CN)
LI YANI (CN)
LI JIANGWEI (CN)
YU QINWEI (CN)
WANG WEIQIANG (CN)
MEI SUNING (CN)

Application Number:

PCT/CN2017/076427

Publication Date:

August 16, 2018

Filing Date:

March 13, 2017

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Assignee:

XIAN MODERN CHEMISTRY RES INST (CN)

International Classes:

B01J27/125; B01J27/132; C01B7/04

Foreign References:

CN105289631A	2016-02-03
CN101070140A	2007-11-14
CN1684903A	2005-10-19
US4123389A	1978-10-31

Attorney, Agent or Firm:

CHINA NORTH INDUSTRIES GROUP CORPORATION PATENT CENTER (CN)

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