Patents by Inventor Wayne E. Brooks

Wayne E. Brooks 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: 5683554
    Abstract: Separation of 1,1-dichloro-1-fluoroethane (141b) from lower boiling components contained in a crude 141b feed stream mixture by adding the feed stream mixture, and, based upon the weight of 141b in the feed stream mixture, between 100 and 300 ppm of a component that will inhibit formation of 1,1-difluoro-1-chloroethane into a feed line of a distillation column operated at between 3 and 165 psig pressure with a temperature between F. and F. in the bottom reboiler section of the column.
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: November 4, 1997
    Assignee: Elf Atochem North America, Inc.
    Inventors: Wayne E. Brooks, Craig Jolley
  • Patent number: 5656137
    Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b by the use of a vessel pre-treated with HF to form an iron fluoride coating on the internal surfaces of said vessel.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: August 12, 1997
    Assignee: Elf Atochem North America, Inc.
    Inventors: Wayne E. Brooks, Craig Jolley
  • Patent number: 5639924
    Abstract: Process for synthesizing 1,1,1-trifluoroethane (143a) in the gaseous phase by reacting 1,1-defluoro-1-chloroethane in gaseous phase in the presence of a Cr catalyst. The process may be run isothermally or adiabatically, without co-feeding air or other oxygen containing gas, in the presence or absence of a Ni, Co, Zn or Mn cocatalyst for the Cr catalyst. The catalyst may be unsupported or supported with a support preferably selected from activated carbon, alumina and fluorided alumina. The formation of olefin byproduct can be kept to less than 10 ppm in accordance with the process of the invention.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: June 17, 1997
    Assignee: Elf Atochem North America, Inc.
    Inventors: Maher Yousef Elsheikh, Michael Sheppard Bolmer, Jean Pierre Schirmann, John Aloysius Wismer, Wayne E. Brooks
  • Patent number: 4948479
    Abstract: Liquid 1,1-dichloro-1-fluoroethane containing contaminating unsaturated carbon compounds is treated with chlorine and ultraviolet light to convert the unsaturated contaminants to photochlorination products. The photochlorination products are thereafter separated from 1,1-dichloro-1-fluoroethane, such as by distillation. The process is particularly useful in separating vinylidene chloride from 1,1-dichloro-1-fluoroethane.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: August 14, 1990
    Assignee: Atochem North America, Inc.
    Inventors: Wayne E. Brooks, William L. Baggett
  • Patent number: 4339312
    Abstract: A continuous closed-loop process for directly producing potassium chlorate by electrolysis of an aqueous potassium chloride solution with a metal anode is described. The process provides surprising advantages in efficiency by comparison with conventional double decomposition processes for producing potassium chlorate from electrolyzed sodium chloride.
    Type: Grant
    Filed: September 10, 1980
    Date of Patent: July 13, 1982
    Assignee: Pennwalt Corporation
    Inventors: Wayne E. Brooks, Jimmie R. Hodges, Morris P. Walker