Invention Grant
- Patent Title: Catalyst for preparing chlorine by oxidation of hydrogen chloride and preparation thereof
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Application No.: US15621282Application Date: 2017-06-13
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Publication No.: US10576465B2Publication Date: 2020-03-03
- Inventor: Guangquan Yi , Yinchuan Lou , Yi Wan , Xunkun Wu , Weiqi Hua , Jiansheng Ding
- Applicant: Wanhua Chemical Group Co., Ltd.
- Applicant Address: CN Yantai Shandong
- Assignee: Wanhua Chemical Group Co., Ltd.
- Current Assignee: Wanhua Chemical Group Co., Ltd.
- Current Assignee Address: CN Yantai Shandong
- Agency: Knobbe, Martens, Olson & Bear LLP
- Priority: CN201010567038 20101118
- Main IPC: C01B7/04
- IPC: C01B7/04 ; B01J29/16 ; B01J23/83 ; B01J37/02 ; B01J29/14

Abstract:
The present invention relates to a catalyst for producing chlorine by oxidation of hydrogen chloride and a method for preparing the same. The catalyst comprises a support and active ingredients that comprise 1-20 wt % of copper, 0.01-5 wt % of boron, 0.1-10 wt % of alkali metal element(s), 0.1-15 wt % of one or more rare earth elements, and 0-10 wt % of one or more elements selected from magnesium, calcium, barium, manganese, iron, nickel, cobalt, zinc, ruthenium or titanium based on the total weight of the catalyst. The catalyst is prepared by a two-step impregnation method. Comparing with the available catalysts of the same type, the catalyst according to the present invention has greatly improved conversion and stability.
Public/Granted literature
- US20170274361A1 CATALYST FOR PREPARING CHLORINE BY OXIDATION OF HYDROGEN CHLORIDE AND PREPARATION THEREOF Public/Granted day:2017-09-28
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