Catalysts for fluorination and/or dismutation reactions on halog

Details Catalysts for fluorination and/or dismutation reactions on halog Catalysts for fluorination and/or dismutation reactions on halog

1984-06-27

1985-10-15

Konopka, P. E.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Halogen or compound containing same

502181, 502228, 570166, 570168, 570169, B01J 2712, B01J 2118, C07C 1720, C07C 1908

Patent

active

045474834

ABSTRACT:
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 converted 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.degree. to 500.degree. C.

REFERENCES:
patent: 3043889 (1962-07-01), Smith et al.
patent: 3992325 (1976-11-01), Knaak

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