Patents by Inventor Yanju SUN

Yanju SUN 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).

  • Suspension of solid catalyst component used in propylene polymerization, method of preparing the same, and method of propylene polymerization
    Patent number: 9593185
    Abstract: The present disclosure provides a suspension of a solid catalyst component used in propylene polymerization and a method for preparing the same. The suspension includes the solid catalyst component and a liquid medium containing propylene and an alkane, and is preferably prepared by mixing the solid catalyst component and the alkane to obtain a mixed slurry, which is further mixed with liquid propylene. Using of a proper liquid dispersing agent at a proper proportion and amount enables the solid catalyst component to be more homogeneously dispersed, thus preventing the phenomenon of agglomeration in the polymerization process without using a large amount of the dispersing agent or any additional mixer. The present disclosure further provides a method of propylene polymerization, including feeding the suspension into a reaction system of propylene polymerization, wherein propylene polymerization is initiated under polymerization conditions.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: March 14, 2017
    Assignees: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd., Beijing Research Institute Of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Jinlai Qin, Haixiang Cui, Xiaodong Wang, Mingzhi Gao, Cuiling Xiao, Yanju Sun, Liang Pan, Xin Chen, Ziqiang Wang
  • SUSPENSION OF SOLID CATALYST COMPONENT USED IN PROPYLENE POLYMERIZATION, METHOD OF PREPARING THE SAME, AND METHOD OF PROPYLENE POLYMERIZATION
    Publication number: 20150158961
    Abstract: The present disclosure provides a suspension of a solid catalyst component used in propylene polymerization and a method for preparing the same. The suspension includes the solid catalyst component and a liquid medium containing propylene and an alkane, and is preferably prepared by mixing the solid catalyst component and the alkane to obtain a mixed slurry, which is further mixed with liquid propylene. Using of a proper liquid dispersing agent at a proper proportion and amount enables the solid catalyst component to be more homogeneously dispersed, thus preventing the phenomenon of agglomeration in the polymerization process without using a large amount of the dispersing agent or any additional mixer. The present disclosure further provides a method of propylene polymerization, including feeding the suspension into a reaction system of propylene polymerization, wherein propylene polymerization is initiated under polymerization conditions.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 11, 2015
    Applicants: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd., Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Jinlai QIN, Haixiang CUI, Xiaodong WANG, Mingzhi GAO, Cuiling XIAO, Yanju SUN, Liang PAN, Xin CHEN, Ziqiang WANG