Patents by Inventor Fengxia Sun

Fengxia 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).

  • Method for selective hydrogenation of phenylacetylene in the presence of styrene
    Patent number: 9084984
    Abstract: The present invention discloses a process for the selective hydrogenation of phenylacetylene in the presence of styrene, comprising contacting a phenylacetylene and styrene-containing hydrocarbon fraction feedstock with a carbon-containing catalyst under hydrogenation reaction conditions, wherein the carbon-containing catalyst has a carbon content of from 0.02 to 8 wt % based on the weight of the catalyst.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: July 21, 2015
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology, Sinopec
    Inventors: Siqin Li, Juntao Liu, Fengxia Sun, Wanmin Wang, Yuanlin Cheng
  • Process of producing oxalate by CO gas phase method
    Patent number: 8871968
    Abstract: The present invention relates to a process of producing oxalate by CO gas phase method for chiefly solving the technical problem of the low utilization efficiency of nitrogen oxides or nitrous acid esters in the prior art.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: October 28, 2014
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Juntao Liu, Fengxia Sun, Jun Kuai
  • PROCESS OF PRODUCING OXALATE BY CO GAS PHASE METHOD
    Publication number: 20130197265
    Abstract: The present invention relates to a process of producing oxalate by CO gas phase method for chiefly solving the technical problem of the low utilization efficiency of nitrogen oxides or nitrous acid esters in the prior art.
    Type: Application
    Filed: April 13, 2011
    Publication date: August 1, 2013
    Applicants: SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Juntao Liu, Fengxia Sun, Jun Kuai
  • Processes for producing ethylene glycol from oxalate(s)
    Patent number: 8178734
    Abstract: Provided are processes for producing ethylene glycol from oxalate(s), wherein two or more reaction zones in series are used, and oxalate feedstock is fed stagewise, or hydrogen feedstock and optionally a solvent are fed stagewise. The present processes achieve higher selectivity for the product and improved stability of catalysts.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: May 15, 2012
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Juntao Liu, Weimin Yang, Fengxia Sun, Siqing Zhong, Wanmin Wang
  • METHOD FOR SELECTIVE HYDROGENATION OF PHENYLACETYLENE IN THE PRESENCE OF STYRENE
    Publication number: 20110308999
    Abstract: The present invention discloses a process for the selective hydrogenation of phenylacetylene in the presence of styrene, comprising contacting a phenylacetylene and styrene-containing hydrocarbon fraction feedstock with a carbon-containing catalyst under hydrogenation reaction conditions, wherein the carbon-containing catalyst has a carbon content of from 0.02 to 8 wt % based on the weight of the catalyst.
    Type: Application
    Filed: December 17, 2009
    Publication date: December 22, 2011
    Inventors: Siqin Li, Juntao Liu, Fengxia Sun, Wanmin Wang, Yuanlin Cheng
  • PROCESSES FOR PRODUCING ETHYLENE GLYCOL FROM OXALATE(S)
    Publication number: 20100179356
    Abstract: Provided are processes for producing ethylene glycol from oxalate(s), wherein two or more reaction zones in series are used, and oxalate feedstock is fed stagewise, or hydrogen feedstock and optionally a solvent are fed stagewise. The present processes achieve higher selectivity for the product and improved stability of catalysts.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 15, 2010
    Inventors: Juntao LIU, Weimin Yang, Fengxia Sun, Siqing Zhong, Wanmin Wang