Patents by Inventor Steven Lamar Grise

Steven Lamar Grise 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 for removing nitriles from hydrogen cyanide
    Patent number: 10562782
    Abstract: Process for making purified hydrogen cyanide. The process includes feeding a reaction product including HCN, water, and organonitriles to a separation vessel; taking a liquid slip stream of HCN, water and organonitriles from the separation vessel; and feeding the liquid slipstream into a sidestream stripper to purge nitriles from the HCN reaction product.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: February 18, 2020
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: William David Parten, Randall O. Dixon, Monique Bowford, Gary R. Maxwell, Steven Lamar Grise
  • METHOD FOR REMOVING NITRILES FROM HYDROGEN CYANIDE
    Publication number: 20180194640
    Abstract: Process for making purified hydrogen cyanide. The process includes feeding a reaction product including HCN, water, and organonitriles to a separation vessel; taking a liquid slip stream of HCN, water and organonitriles from the separation vessel; and feeding the liquid slipstream into a sidestream stripper to purge nitriles from the HCN reaction product.
    Type: Application
    Filed: July 12, 2016
    Publication date: July 12, 2018
    Applicant: The Chemours Company FC, LLC
    Inventors: WILLIAM DAVID PARTEN, RANDALL O. DIXON, MONIQUE BOWFORD, GARY R. MAXWELL, STEVEN LAMAR GRISE
  • Sodium cyanide process
    Patent number: 8894961
    Abstract: A process for the production of sodium cyanide crystals comprising; (a) contacting impure hydrogen cyanide and sodium hydroxide in a reactor with mixing for a maximum contact time of about 5 seconds; (b) feeding the resulting mixture to a continuous evaporative crystallizer to produce a slurry of sodium cyanide crystals; (c) passing the slurry of sodium cyanide crystals from the crystallizer over a hot surface to precipitate onto the surface and remove sodium carbonate, and passing said slurry back to the crystallizer; and (d) separating the sodium cyanide crystals from the slurry.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: November 25, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: James David Allison, Brent Ellsworth Basham, Steven Lamar Grise
  • SODIUM CYANIDE PROCESS
    Publication number: 20100296995
    Abstract: A process for the production of sodium cyanide crystals comprising; (a) contacting impure hydrogen cyanide and sodium hydroxide in a reactor with mixing for a maximum contact time of about 5 seconds; (b) feeding the resulting mixture to a continuous evaporative crystallizer to produce a slurry of sodium cyanide crystals; (c) passing the slurry of sodium cyanide crystals from the crystallizer over a hot surface to precipitate onto the surface and remove sodium carbonate, and passing said slurry back to the crystallizer; and (d) separating the sodium cyanide crystals from the slurry.
    Type: Application
    Filed: April 19, 2010
    Publication date: November 25, 2010
    Applicant: E. I. du Pont de Nemours and Company
    Inventors: James David Allison, Brent Ellsworth Basham, Steven Lamar Grise
  • Process for scrubbing ammonia from acid gases comprising ammonia and hydrogen sulfide
    Patent number: 7258848
    Abstract: The present invention provides a process for removing ammonia as an aqueous salt solution from an acid gas comprising ammonia and hydrogen sulfide. A strong acid, such as sulfuric acid, is used as a scrubbing agent to convert ammonia to an ammonium salt. Control of pH and stripping in combination with reboiler or evaporators reduces hydrogen sulfide concentration. The ammonium salt is produced as an aqueous solution, which may crystallized to form a solid product. The ammonium salt solution or solid may be used as a fertilizer.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: August 21, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Benny E. Blackwell, Luis Alberto Chu, Monroe Davis, Wayne B. Ely, Robert Joseph Flowers, Steven Lamar Grise, Zeru Berhane Tekie