Patents by Inventor Huanjun DU

Huanjun DU 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).

  • Olefin polymerization apparatus and olefin polymerization process
    Patent number: 10266625
    Abstract: Provided in the present invention are an olefin polymerization apparatus and an olefin polymerization process. The following operations and effects can be realized by the apparatus or method provided in the present invention: the gas material discharged from the polymerization reactor is condensed, after the gas-liquid separation, the resulting gas portion is recycled to the reactor to form a circulation loop; the condensate can be selectively introduced to the polymerization reactor, in order to achieve the free switch between the homopolymerization reaction and the copolymerization reaction or between different copolymerization reactions, and at the same time the condensate can absorb the heat generated by the reaction. By using the apparatus and method provided in the present invention, polyolefin products having excellent mechanical properties and processability can be prepared as needed.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: April 23, 2019
    Assignees: China Petroleum & Chemical Corporation, Zhejiang University
    Inventors: Jingdai Wang, Wenqing Wu, Yongrong Yang, Guodong Han, Zhengliang Huang, Jingyuan Sun, Xiaofei Wang, Xiaoqiang Fan, Huanjun Du, Binbo Jiang, Zuwei Liao, Yao Yang
  • OLEFIN POLYMERIZATION APPARATUS AND OLEFIN POLYMERIZATION PROCESS
    Publication number: 20180258204
    Abstract: Provided in the present invention are an olefin polymerization apparatus and an olefin polymerization process. The following operations and effects can be realized by the apparatus or method provided in the present invention: the gas material discharged from the polymerization reactor is condensed, after the gas-liquid separation, the resulting gas portion is recycled to the reactor to form a circulation loop; the condensate can be selectively introduced to the polymerization reactor, in order to achieve the free switch between the homopolymerization reaction and the copolymerization reaction or between different copolymerization reactions, and at the same time the condensate can absorb the heat generated by the reaction. By using the apparatus and method provided in the present invention, polyolefin products having excellent mechanical properties and processability can be prepared as needed.
    Type: Application
    Filed: December 9, 2015
    Publication date: September 13, 2018
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, ZHEJIANG UNIVERSITY
    Inventors: Jingdai WANG, Wenqing WU, Yongrong YANG, Guodong HAN, Zhengliang HUANG, Jingyuan SUN, Xiaofei WANG, Xiaoqiang FAN, Huanjun DU, Binbo JIANG, Zuwei LIAO, Yao YANG