Patents by Inventor Derrek R. Burrows

Derrek R. Burrows 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).

  • Treatment of brine to remove metals and silicon therefrom
    Patent number: 6627085
    Abstract: Disclosed is a process for reducing the amount of silicon in brine. More specifically the silicon content of the brine is reduced to 1 ppm or less by using low caustic excess. The disclosed process can also be characterized as lowering sodium hydroxide excess (caustic excess) while maintaining the sodium carbonate level thereby obtaining a brine with a low level of silicon. A further purification step employs a sludge blanket.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: September 30, 2003
    Assignee: Vulcan Chemicals
    Inventors: Derrek R. Burrows, Brian W. Johnson
  • Treatment of brine to remove metals and silicon therefrom
    Publication number: 20030026749
    Abstract: Disclosed is a process for reducing the amount of silicon in brine. More specifically the silicon content of the brine is reduced to 1 ppm or less by using low caustic excess. The disclosed process can also be characterized as lowering sodium hydroxide excess (caustic excess) while maintaining the sodium carbonate level thereby obtaining a brine with a low level of silicon. A further purification step employs a sludge blanket.
    Type: Application
    Filed: June 25, 2001
    Publication date: February 6, 2003
    Applicant: VULCANS CHEMICALS
    Inventors: Derrek R. Burrows, Brian W. Johnson