Cr, Mo, Or W Patents (Class 585/662)
  • Patent number: 4327238
    Abstract: The catalytic dehydrogenation of at least one dehydrogenatable organic compound which has at least one ##STR1## grouping is carried out in the presence of a zinc titanate catalyst. The selectivity of the zinc titanate catalyst is improved by at least one promoter selected from the group consisting of chromium oxide, antimony oxide, bismuth oxide, oxides of the lanthanides, oxides of the actinides, oxides thereof, and compounds convertible to the oxides thereof.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: April 27, 1982
    Assignee: Phillips Petroleum Company
    Inventor: Alan D. Eastman
  • Patent number: 4172854
    Abstract: Magnesium chromite dehydrogenation catalysts are improved by incorporation therein up to about 10% of an alkali metal.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: October 30, 1979
    Assignee: Petro-Tex Chemical Corporation
    Inventors: Michael C. Ellis, Harold E. Manning