Patents by Inventor Graham Aird

Graham Aird 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).

  • POWER RECOVERY FOR USE IN START-UP OR RE-START OF A PURE TEREPHTHALIC ACID PRODUCTION PROCESS
    Publication number: 20130255259
    Abstract: The invention relates to a method and system for recovering power from the gaseous stream produced by a paraxylene-air oxidation reaction. Specifically, the invention is based on heating the gaseous stream from the oxidation reaction to a temperature of at least 600° C., recovering energy through an expander, heating the expander vent stream and recovering heat from the vent stream. The recovered heat is used to maintain the oxidation process, purification process, start-up the process, or re-start the process after an interruption.
    Type: Application
    Filed: May 24, 2013
    Publication date: October 3, 2013
    Inventors: Harald B. CARRICK, Graham AIRD, Graeme HUMPHRIES
  • Preparation of lactams
    Publication number: 20060161000
    Abstract: A process for the manufacture of a lactam from an amino alkane nitrile and/or its hydrolysis derivatives, comprising reacting a solution comprising at least about 5% by weight amino alkane nitrile in water at a temperature of greater than or equal to about 350° C. and at a pressure of greater than about 250 bar. Optionally, a dilute acid may be added as a catalyst.
    Type: Application
    Filed: December 21, 2005
    Publication date: July 20, 2006
    Applicant: INVISTA NORTH AMERICAL S.A.R.L.
    Inventors: Martyn Poliakoff, Paul Hamley, Chong Yan, Eduardo Cepeda, Graham Aird, Alexander Coote, Ian Pearson, William Thomas