Patents by Inventor James S. Law

James S. Law 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 and apparatus for the continuous production of diaryl carbonates
    Patent number: 6767517
    Abstract: An energy efficient series of mass and energy integrated reactive distillation columns and distillation columns are used to effect the production of diaryl carbonate. Utilizing the method or apparatus of the invention facilitates high diaryl carbonate production rates, and convenient recovery of unreacted starting materials and side-reaction products for recycle within the process for making diaryl carbonates or utilization in parallel reactions such as the manufacture of dialkyl carbonates. The method makes use of three reactive distillation columns and two rectification columns which are joined by a plurality of lines for transferring reactants and/or products into and out of the columns.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: July 27, 2004
    Assignee: General Electric Company
    Inventors: Philip R. de Bruin, James S. Law, Vincentius Antonius Vriens
  • Production of high purity meta-xylene
    Patent number: 6376736
    Abstract: A continuous process for integrated processing of a C8+ aromatic hydrocarbon stream is disclosed for recovery of a high purity meta-xylene product in conjunction with efficient separation and recovery of purified para-xylene and, optionally, purified ortho-xylene products.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: April 23, 2002
    Assignee: Washington Group International, Inc.
    Inventors: Philippe W. M. Rutten, James S. Law, Douglas S. Hubbell
  • Method and apparatus for the continuous production of diaryl carbonates
    Patent number: 6294684
    Abstract: An energy efficient series of mass and energy integrated reactive distillation columns and distillation columns are used to effect the production of diaryl carbonate. Utilizing the method or apparatus of the invention facilitates high diaryl carbonate production rates, and convenient recovery of unreacted starting materials and side-reaction products for recycle within the process for making diaryl carbonates or utilization in parallel reactions such as the manufacture of dialkyl carbonates. The method makes use of three reactive distillation columns and two rectification columns which are joined by a plurality of lines for transferring reactants and/or products into and out of the columns.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: September 25, 2001
    Assignee: General Electric Company
    Inventors: Philip R. de Bruin, James S. Law, Vincentius Antonius Vriens
  • Method and apparatus for the continuous production of diaryl carbonates
    Publication number: 20010021786
    Abstract: An energy efficient series of mass and energy integrated reactive distillation columns and distillation columns are used to effect the production of diaryl carbonate. Utilizing the method or apparatus of the invention facilitates high diaryl carbonate production rates, and convenient recovery of unreacted starting materials and side-reaction products for recycle within the process for making diaryl carbonates or utilization in parallel reactions such as the manufacture of dialkyl carbonates. The method makes use of three reactive distillation columns and two rectification columns which are joined by a plurality of lines for transferring reactants and/or products into and out of the columns.
    Type: Application
    Filed: April 3, 2001
    Publication date: September 13, 2001
    Applicant: General Electric Co.
    Inventors: Philip R. de Bruin, James S. Law, Vincentius Antonius Vriens