Patents by Inventor Miraj S. Patel

Miraj S. Patel 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).

  • Process for the manufacture of acetic acid
    Patent number: 9090554
    Abstract: The phase separation in the decanter of a process for producing acetic acid by carbonylating methanol in the presence of a catalyst under low water-high acid conditions is improved by forming a liquid mixture (D) which has a water content of at most 20% by weight, based on the weight of the liquid mixture, and a weight ratio of acetic acid to water of at least 1:1, and partitioning the liquid mixture by providing for an alkane(s) content of D of from 0.1 to 15% by weight, based on the weight of D, to obtain a light, aqueous phase and a heavy, organic phase.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: July 28, 2015
    Assignee: LyondellBasell Acetyls, LLC
    Inventors: Noel C. Hallinan, John D. Hearn, Michael E. Fitzpatrick, Miraj S. Patel
  • Process for the manufacture of acetic acid
    Patent number: 9051258
    Abstract: The phase separation in the decanter of a process for producing acetic acid by carbonylating methanol in the presence of a catalyst under low water-high acid conditions is facilitated and expedited by forming a liquid mixture (D) which has a water content of at most 10% by weight, based on the weight of the liquid mixture, an acetic acid content of at least 10% by weight, based on the weight of the liquid mixture, and a weight ratio of methyl iodide to methyl acetate of at least 1.5:1, and partitioning the liquid mixture at a temperature of from 0 to 35° C.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: June 9, 2015
    Assignee: LyondellBasell Acetyls, LLC
    Inventors: Noel C. Hallinan, John D. Hearn, Michael E. Fitzpatrick, Miraj S. Patel
  • PROCESS FOR THE MANUFACTURE OF ACETIC ACID
    Publication number: 20130296616
    Abstract: The phase separation in the decanter of a process for producing acetic acid by carbonylating methanol in the presence of a catalyst under low water-high acid conditions is improved by forming a liquid mixture (D) which has a water content of at most 20% by weight, based on the weight of the liquid mixture, and a weight ratio of acetic acid to water of at least 1:1, and partitioning the liquid mixture by providing for an alkane(s) content of D of from 0.1 to 15% by weight, based on the weight of D, to obtain a light, aqueous phase and a heavy, organic phase.
    Type: Application
    Filed: December 13, 2012
    Publication date: November 7, 2013
    Applicant: Lyondell Chemical Technology, LP.
    Inventors: Noel C. Hallinan, John D. Hearn, Michael E. Fitzpatrick, Miraj S. Patel
  • Controlling decanter phase separation of acetic acid production process
    Patent number: 8431740
    Abstract: Disclosed is a method for controlling the decanter phase separation of an acetic acid production by methanol carbonylation. The method comprises measuring the methyl acetate concentration of the reactor mixture, calculating the density of the decanter heavy, organic phase according to the measured methyl acetate concentration, and adjusting the conditions in the reactor or in the decanter to ensure phase separation of the decanter.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: April 30, 2013
    Assignee: Equistar Chemicals, LP
    Inventors: Noel Hallinan, Michael E. Fitzpatrick, John D. Hearn, Miraj S. Patel
  • Controlling decanter phase separation of acetic acid production process
    Publication number: 20120022289
    Abstract: Disclosed is a method for controlling the decanter phase separation of an acetic acid production by methanol carbonylation. The method comprises measuring the methyl acetate concentration of the reactor mixture, calculating the density of the decanter heavy, organic phase according to the measured methyl acetate concentration, and adjusting the conditions in the reactor or in the decanter to ensure phase separation of the decanter.
    Type: Application
    Filed: July 21, 2010
    Publication date: January 26, 2012
    Inventors: Noel Hallinan, Michael E. Fitzpatrick, John D. Hearn, Miraj S. Patel