Regeneration of zinc halide catalyst used in the hydrocracking o

Details Regeneration of zinc halide catalyst used in the hydrocracking o Regeneration of zinc halide catalyst used in the hydrocracking o

1977-02-01

1978-03-28

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252416, 423107, 423491, 208 10, 208108, B01J 2732

Patent

active

040814009

ABSTRACT:
Improved recovery of spent molten zinc halide hydro-cracking catalyst is achieved in the oxidative vapor phase regeneration thereof by selective treatment of the zinc oxide carried over by the effluent vapors from the regeneration zone with hydrogen halide gas under conditions favoring the reaction of the zinc oxide with the hydrogen halide, whereby regenerated zinc halide is recovered in a solids-free state with little loss of zinc values.

REFERENCES:
patent: 3355376 (1967-11-01), Gorin et al.
patent: 3888302 (1975-06-01), Rounds

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