Patents by Inventor Gongchen Yan

Gongchen Yan 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 or synthesizing 1-hexene from ethylene trimerization and application thereof
    Patent number: 9421533
    Abstract: A catalyst for synthesizing 1-hexene from ethylene trimerization and its application are provided. Said catalyst consists of (a) the compound containing P and N, (b) electron donor, (c) Cr compound, (d) carrier and (e) accelerator. The molar ratio of (a), (b), (c), (d) and (e) is 0.5-100:0.5-100:1:0.5-10:50-5000. The catalyst is prepared by mixing the components of (a)-(e) in an ethylene trimerization apparatus in situ and ethylene is introduced into the apparatus continuously. The prepared catalyst can be used to synthesize 1-hexene from ethylene trimerization in the inert solvents. The trimerization is performed at 30-150° C. and 0.5-10.0 MPa for 0.1-4 hours. The catalyst has high catalytic activity and high 1-hexene selectivity. During the process of ethylene trimerization, by-product polyethylene does not stick to the apparatus.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: August 23, 2016
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Gang Wang, Sihan Wang, Zhonghua Yang, Jiabo Qu, Baojun Zhang, Qian Chen, Deshun Zhang, Libo Wang, Yali Wang, Buwei Yu, Xiuhui Wang, Fuling Huang, Xuemei Han, Dongmei Niu, Shukun Sun, Wenchao Zhang, Hua Li, Gongchen Yan
  • Catalyst for Synthesizing 1-Hexene from Ethylene Trimerization and Application Thereof
    Publication number: 20120310025
    Abstract: A catalyst for synthesizing 1-hexene from ethylene trimerization and its application are provided. Said catalyst consists of (a) the compound containing P and N, (b) electron donor, (c) Cr compound, (d) carrier and (e) accelerator. The molar ratio of (a), (b), (c), (d) and (e) is 0.5-100:0.5-100:1:0.5-10:50-5000. The catalyst is prepared by mixing the components of (a)-(e) in an ethylene trimerization apparatus in situ and ethylene is introduced into the apparatus continuously. The prepared catalyst can be used to synthesize 1-hexene from ethylene trimerization in the inert solvents. The trimerization is performed at 30-150° C. and 0.5-10.0 MPa for 0.1-4 hours. The catalyst has high catalytic activity and high 1-hexene selectivity. During the process of ethylene trimerization, by-product polyethylene does not stick to the apparatus.
    Type: Application
    Filed: July 22, 2010
    Publication date: December 6, 2012
    Applicant: PETROCHINA COMPANY LIMITED
    Inventors: Gang Wang, Sihan Wang, Zhonghua Yang, Jiabo Qu, Baojun Zhang, Qian Chen, Deshun Zhang, Libo Wang, Yali Wang, Buwei Yu, Xiuhui Wang, Fuling Huang, Xuemei Han, Dongmei Niu, Shukun Sun, Wenchao Zhang, Hua Li, Gongchen Yan