Chlorofluoro(hydro)carbon conversion process

Details Chlorofluoro(hydro)carbon conversion process Chlorofluoro(hydro)carbon conversion process

1995-03-31

1997-10-21

Caldarola, Glenn A.

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

Catalyst or precursor therefor

Halogen or compound containing same

502224, 502229, B01J 27125, B01J 2706, B01J 27128

Patent

active

056796137

ABSTRACT:
A process for preparing R113a from Rl13, and R123 from R123a or R123b by rearrangement over AlCl.sub.3, in which when the reaction mixture is heated sudden start-up of the reaction, which often causes large amounts of heat to be released and the reaction to run away, is prevented by using a specially activated AlCl.sub.3, which has been activated by means of a metal halide selected from the group consisting of NaF.multidot.nHF with 0<n.ltoreq.2, AgCl and FeCl.sub.3. In addition to it being considerably easier to control the reaction, shorter reaction times for the rearrangement and a decrease in the amount of by-products which are formed, are observed.

REFERENCES:
patent: 2598411 (1952-05-01), Miller et al.
patent: 3087974 (1963-04-01), Hauptschein et al.
patent: 4570023 (1986-02-01), Petruck et al.
patent: 4599441 (1986-07-01), Kanner et al.
Okuhara, J. Org. Chem., vol. 43, No. 14, pp. 2745-2749 (1978).
Hellberg et al., Chemiker-Zeitung (Chemist Magainze), vol. 93, No. 6, pp. 209-211 (1969) no English version.

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