Dehydrogenation process Patent #: 4143083
ApplicationNo. 06/452471 filed on 12/23/1982
US Classes:502/183, Of Group II (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg)502/243, Of Group I (i.e., Alkali, Ag, Au or Cu)502/306, And Group II metal containing (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg)502/328, And Group II metal containing (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg)585/444, Using metal oxide, sulfide, or salt585/445Cr-, Mo-, or W-containing
ExaminersPrimary: Shine, W. J.
Attorney, Agent or Firm
International ClassesC07C 5/333 (20060101)
C07C 5/00 (20060101)
B01J 23/86 (20060101)
B01J 23/76 (20060101)
AbstractPara-ethyltoluene dehydrogenation catalyst compositions and processes for using such catalysts are provided. The catalyst compositions comprise a catalytically active iron compound, e.g., iron oxide; a potassium catalyst promoter, e.g., potassium carbonate; an optional chromium compound stabilizer, e.g., chromic oxide, and a magnesium compound, e.g., magnesium oxide. Utilization of particular amounts of magnesium compound in dehydrogenation catalyst compositions of this type will provide a catalyst especially suitable for promoting the selective dehydrogenation of para-ethyltoluene to form para-methylstyrene in improved yields.