Patents by Inventor Hidehiro Sato

Hidehiro Sato 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 treatment of waste gases from a chlorination furnace
    Patent number: 4474587
    Abstract: A waste gas exhausted from a chlorination furnace during the manufacture of titanium tetrachloride or zirconium tetrachloride which contains larger quantities of CO.sub.2 and harmful substances such as chlorides and the like is subjected to treatment which comprises the sequential steps of scrubbing the waste gas in a water scrubbing column, removing moisture from the waste gas to allow the waste gas to have a dew point of no more that 5.degree. C., and adsorbing the waste gas in an activated carbon packed column. The process is capable of reducing the content of chlorides in the waste gas to a level of no more than 5 ppm in HCl equivalent.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: October 2, 1984
    Assignee: Toho Titanium Co., Ltd.
    Inventors: Yoshimasa Matsumoto, Tadachika Mizuno, Hidehiro Sato, Kenji Koyama