Patents by Inventor Zhangwei Zai

Zhangwei Zai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Catalyst for preparing chlorine gas by hydrogen chloride oxidation, and preparation method and application thereof
    Patent number: 11000837
    Abstract: A catalyst for preparing chlorine gas by hydrogen chloride oxidation, comprising the following components calculated according to mass content based on the total weight of the catalyst: 0.5-20 wt % copper; 2-10 wt % manganese; 0.05-2 wt % boron; 0.01-3 wt % chromium; 0.1-10 wt % rare earth metal; 0.1-10 wt % potassium; and 3-15 wt % titanium; also comprising 0.02-1.1 wt % phosphorus; and 0.03-1.9 wt % iron; the carrier content is 55-90 wt %. In the case of a fluidized bed reactor, the present catalyst can achieve a one-way hydrogen chloride conversion rate of 80-85%. Almost all of the 0-1000 mg/kg of chlorinated benzene contained in hydrogen chloride gas can be converted into CO2 and H2O without generating polychlorinated benzene.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 11, 2021
    Inventors: Hongke Zhang, Bo Zhou, Zhangwei Zai, Dan Xu, Yu Yao, Yanlong Xu, Dongke Zhao, Jingjing Yang, Jiansheng Ding, Weiqi Hua
  • Catalyst For Preparing Chlorine Gas By Hydrogen Chloride Oxidation, And Preparation Method And Application Thereof
    Publication number: 20190291087
    Abstract: A catalyst for preparing chlorine gas by hydrogen chloride oxidation, comprising the following components calculated according to mass content based on the total weight of the catalyst: 0.5-20 wt % copper; 2-10 wt % manganese; 0.05-2 wt % boron; 0.01-3 wt % chromium; 0.1-10 wt % rare earth metal; 0.1-10 wt % potassium; and 3-15 wt % titanium; also comprising 0.02-1.1 wt % phosphorus; and 0.03-1.9 wt % iron; the carrier content is 55-90 wt %. In the case of a fluidized bed reactor, the present catalyst can achieve a one-way hydrogen chloride conversion rate of 80-85%. Almost all of the 0-1000 mg/kg of chlorinated benzene contained in hydrogen chloride gas can be converted into CO2 and H2O without generating polychlorinated benzene.
    Type: Application
    Filed: August 5, 2016
    Publication date: September 26, 2019
    Applicant: Wanhua Chemical Group Co., Ltd.
    Inventors: Hongke Zhang, Bo Zhou, Zhangwei Zai, Dan Xu, Yu Yao, Yanlong Xu, Dongke Zhao, Jingjing Yang, Jiansheng Ding, Weiqi Hua