Patents by Inventor Irvin B. Cox

Irvin B. Cox 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: 10843992
    Abstract: In one aspect, a hydroformylation reaction process comprises contacting an olefin, hydrogen, and CO in the presence of a homogeneous catalyst in a cylindrical reactor to provide a reaction fluid, wherein the reactor has a fixed height, and wherein a total mixing energy of at least 0.5 kW/m3 is delivered to the fluid in the reactor; removing a portion of the reaction fluid from the reactor; and returning at least a portion of the removed reaction fluid to the reactor, wherein the returning reaction fluid is introduced in at least two return locations positioned at a height that is less than 80% of the fixed height, wherein the at least two return locations are positioned above a location in the reactor where hydrogen and carbon monoxide are introduced to the reactor, and wherein at least 15% of the mixing energy is provided by the returning reaction fluid.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: November 24, 2020
    Assignee: Dow Technology Investments LLC
    Inventors: Michael C. Becker, Donald L. Campbell, Irvin B. Cox, Shankhadeep Das, Seshadri Kumar, Glenn A. Miller, Nilesh Parmar, George R. Phillips
  • Publication number: 20200140361
    Abstract: In one aspect, a hydroformylation reaction process comprises contacting an olefin, hydrogen, and CO in the presence of a homogeneous catalyst in a cylindrical reactor to provide a reaction fluid, wherein the reactor has a fixed height, and wherein a total mixing energy of at least 0.5 kW/m3 is delivered to the fluid in the reactor; removing a portion of the reaction fluid from the reactor; and returning at least a portion of the removed reaction fluid to the reactor, wherein the returning reaction fluid is introduced in at least two return locations positioned at a height that is less than 80% of the fixed height, wherein the at least two return locations are positioned above a location in the reactor where hydrogen and carbon monoxide are introduced to the reactor, and wherein at least 15% of the mixing energy is provided by the returning reaction fluid.
    Type: Application
    Filed: June 19, 2018
    Publication date: May 7, 2020
    Inventors: Michael C. Becker, Donald L. Campbell, Irvin B. Cox, Shankhadeep Das, Seshadri Kumar, Glenn A. Miller, Nilesh Parmar, George R. Phillips
  • Patent number: 10023516
    Abstract: Catalytic metal loss when using a hydroformylation catalyst comprising an organophosphite ligand is ameliorated by adding CO to a strip gas vaporizer.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: July 17, 2018
    Assignee: Dow Technology Investments LLC
    Inventors: Michael A. Brammer, George R. Phillips, Thomas C. Eisenschmid, Irvin B. Cox, Robert Hetterley, Michael John Bainbridge
  • Publication number: 20170355656
    Abstract: Catalytic metal loss when using a hydroformylation catalyst comprising an organophosphite ligand is ameliorated by adding CO to a strip gas vaporizer.
    Type: Application
    Filed: November 18, 2015
    Publication date: December 14, 2017
    Inventors: Michael A. Brammer, George R. Phillips, Thomas C. Eisenschmid, Irvin B. Cox, Robert Hetterley, Michael John Bainbridge
  • Patent number: 9695098
    Abstract: A multi-reactor hydroformylation process wherein a common product-catalyst separation zone is employed.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: July 4, 2017
    Assignee: DOW TECHNOLOGY INVESTMENTS LLC
    Inventors: Glenn A. Miller, Jason F. Giles, Irvin B. Cox
  • Patent number: 9688598
    Abstract: A multi-reaction train hydroformylation process wherein a common product-catalyst separation zone is employed.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: June 27, 2017
    Assignee: DOW TECHNOLOGY INVESTMENTS LLC
    Inventors: Thomas C. Eisenschmid, Morteza Mokhtarzadeh, Cloid R. Smith, III, Michael C. Becker, George R. Phillips, Michael A. Brammer, Glenn A. Miller, Rick B. Watson, Irvin B. Cox, Edward A. Lord, Martin Smidt
  • Patent number: 9670122
    Abstract: A process of controlling hydroformylation reaction fluid temperature involves controlling the flow rate of reaction fluid through an external heat exchanger.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: June 6, 2017
    Assignee: Dow Technology Investments LLC
    Inventors: Cloid R. Smith, III, Morteza Mokhtarzadeh, Irvin B. Cox
  • Patent number: 9464019
    Abstract: A method of managing the heat of a chemical reaction process.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: October 11, 2016
    Assignee: Dow Technology Investments LLC
    Inventors: Glenn A. Miller, Irvin B. Cox, Morteza Mokhtarzadeh
  • Publication number: 20160257636
    Abstract: A multi-reactor hydroformylation process wherein a common product-catalyst separation zone is employed.
    Type: Application
    Filed: December 9, 2014
    Publication date: September 8, 2016
    Inventors: Glenn A. Miller, Jason F. Giles, Irvin B. Cox
  • Publication number: 20160257635
    Abstract: A multi-reaction train hydroformylation process wherein a common product-catalyst separation zone is employed.
    Type: Application
    Filed: December 9, 2014
    Publication date: September 8, 2016
    Inventors: Thomas C. Eisenschmid, Morteza Mokhtarzadeh, Cloid R. Smith, III, Michael C. Becker, George R. Phillips, Michael A. Brammer, Glenn A. Miller, Rick B. Watson, Irvin B. Cox, Edward A. Lord, Martin Lucas Smidt
  • Publication number: 20160194265
    Abstract: A process of controlling hydroformylation reaction fluid temperature involves controlling the flow rate of reaction fluid through an external heat exchanger.
    Type: Application
    Filed: September 9, 2014
    Publication date: July 7, 2016
    Applicants: Dow Technology Investments LLC, Dow Technology Investments LLC
    Inventors: Cloid R. Smith, III, Morteza Mokhtarzadeh, Irvin B. Cox
  • Patent number: 8404903
    Abstract: A process of controlling heavies in a recycle catalyst stream, particularly, for use in a continuous hydroformylation process of converting an olefin with synthesis gas in the presence of a hydroformylation catalyst to form an aldehyde product stream with subsequent separation of the catalyst for recycle to the hydroformylation step. Heavies are controlled, and preferably reduced, by means of feeding a recycle gas stream, taken as a portion of an over-head stream from a condenser, back to a vaporizer wherein the aldehyde product stream is separated.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: March 26, 2013
    Assignees: Dow Technology Investments, LLC, BASF SE
    Inventors: Irvin B. Cox, Thomas C. Eisenschmid, Ronald R. Peterson, Rainer Papp, Ludwig Herk, Anthony G. Abatjoglou
  • Publication number: 20110269997
    Abstract: A process of controlling heavies in a recycle catalyst stream, particularly, for use in a continuous hydroformylation process of converting an olefin with synthesis gas in the presence of a hydroformylation catalyst to form an aldehyde product stream with subsequent separation of the catalyst for recycle to the hydroformylation step. Heavies are controlled, and preferably reduced, by means of feeding a recycle gas stream, taken as a portion of an over-head stream from a condenser, back to a vaporizer wherein the aldehyde product stream is separated.
    Type: Application
    Filed: July 2, 2009
    Publication date: November 3, 2011
    Inventors: Irvin B. Cox, Thomas C. Eisenschmid, Ronald R. Peterson, Rainer Papp, Ludwig Herk, Anthony G. Abatjoglou