Patents by Inventor Jicai Liu

Jicai Liu 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).

  • Patent number: 8182756
    Abstract: The invention discloses a kind of sulfonation cyclization technique for synthesizing acesulfame potassium for continuous production without stirring and special equipment for this technique. An injection pump is adopted to directly inject the sulfonation raw material and sulfonating agent into autoclave for sulfonation cyclization reaction under high velocity. Moreover, the reciprocating pump is adopted to deliver part of materials in autoclave to condenser designed outside the autoclave for cooling, followed by delivering the cooled materials to another input end of injection pump which together with sulfonation raw material and sulfonating agent is injected into autoclave through high-velocity injection by injection pump. The apparatus is composed of autoclave, injection pump, reciprocating pump and condenser.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: May 22, 2012
    Assignee: Suzhou Hope Technology Co., Ltd
    Inventors: Jicai Liu, Lingwen Kong, Zhongxiang Bao, Xiaoping Chen
  • Publication number: 20110020191
    Abstract: The invention discloses a kind of sulfonation cyclization technique for synthesizing acesulfame potassium for continuous production without stirring and special equipment for this technique. An injection pump is adopted to directly inject the sulfonation raw material and sulfonating agent into autoclave for sulfonation cyclization reaction under high velocity. Moreover, the reciprocating pump is adopted to deliver part of materials in autoclave to condenser designed outside the autoclave for cooling, followed by delivering the cooled materials to another input end of injection pump which together with sulfonation raw material and sulfonating agent is injected into autoclave through high-velocity injection by injection pump. The apparatus is composed of autoclave, injection pump, reciprocating pump and condenser.
    Type: Application
    Filed: September 30, 2010
    Publication date: January 27, 2011
    Inventors: Jicai Liu, Lingwen Kong, Zhongxiang Bao, Xiaoping Chen
  • Patent number: 7829701
    Abstract: The invention discloses a kind of sulfonation cyclization technique for synthesizing acesulfame potassium for continuous production without stirring and special equipment for this technique. An injection pump is adopted to directly inject the sulfonation raw material and sulfonating agent into autoclave for sulfonation cyclization reaction under high velocity. Moreover, the reciprocating pump is adopted to deliver part of materials in autoclave to condenser designed outside the autoclave for cooling, followed by delivering the cooled materials to another input end of injection pump which together with sulfonation raw material and sulfonating agent is injected into autoclave through high-velocity injection by injection pump. The apparatus is composed of autoclave, injection pump, reciprocating pump and condenser.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: November 9, 2010
    Assignee: Suzhou Hope Technology Co., Ltd
    Inventors: Jicai Liu, Lingwen Kong, Zhongxiang Bao, Xiaoping Chen
  • Publication number: 20080076919
    Abstract: The invention discloses a kind of sulfonation cyclization technique for synthesizing acesulfame potassium for continuous production without stirring and special equipment for this technique. An injection pump is adopted to directly inject the sulfonation raw material and sulfonating agent into autoclave for sulfonation cyclization reaction under high velocity. Moreover, the reciprocating pump is adopted to deliver part of materials in autoclave to condenser designed outside the autoclave for cooling, followed by delivering the cooled materials to another input end of injection pump which together with sulfonation raw material and sulfonating agent is injected into autoclave through high-velocity injection by injection pump. The apparatus is composed of autoclave, injection pump, reciprocating pump and condenser.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 27, 2008
    Inventors: Jicai Liu, Lingwen Kong, Zhongxiang Bao, Xiaoping Chen