Patents by Inventor Lanxin Ye

Lanxin Ye 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).

  • Method for acetylene hydrochlorination to vinyl chloride catalyzed by ultra-low content aurum-based material
    Patent number: 12594543
    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.
    Type: Grant
    Filed: May 17, 2023
    Date of Patent: April 7, 2026
    Assignees: Nanjing Tech University, CNSIG JILANTAI CHLOR-ALKALI CHEMICAL CO., LTD.
    Inventors: Chuan Wang, Guangbin Wang, Lanxin Ye, Jie Zhou, Heng Wang, Ming Xu, Wensai Zhu, Guoqing Guo, Hongxia Liu, Hongda Li, Wei Su, Miao Chen
  • Method for acetylene hydrochlorination to vinyl chloride catalyzed by ultra-low content aurum-based material
    Publication number: 20230381747
    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.
    Type: Application
    Filed: May 17, 2023
    Publication date: November 30, 2023
    Inventors: Chuan Wang, Guangbin Wang, Lanxin Ye, Jie Zhou, Heng Wang, Ming Xu, Wensai Zhu, Guoqing Guo, Hongxia Liu, Hongda Li, Wei Su, Miao Chen