Catalysts for fluorination and/or dismutation reactions on...

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B01J 27/12 (2006.01) B01J 23/26 (2006.01) B01J 37/26 (2006.01) C07C 17/20 (2006.01) C07C 17/37 (2006.01)

Patent

CA 1221676

HOE 83/F 108 Abstract of the Disclosure: A process is specified for preparing a chromium- and magnesium-containing catalyst for fluorination reactions by precipitating chromium(III) hydroxide. In this process, 1 mole of a water-soluble chromium(III) salt is reacted with at least 1.5 moles of magnesium hydroxide or magnesium oxide in the presence of water, and the reaction mixture - if necessary by evaporation - is con- verted into a paste which contains chromium(III) hydroxide and a magnesium salt. The paste is dried and treated with hydrogen fluoride at temperatures of 20 to 500°C.

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