Process for the recovery of antimony pentachloride from a spent

Details Process for the recovery of antimony pentachloride from a spent Process for the recovery of antimony pentachloride from a spent

1976-08-03

1978-01-24

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group va metal or arsenic

252415, C01B 2900

Patent

active

040704394

ABSTRACT:
Antimony pentachloride is recovered from a spent antimony catalyst mixture in a simple manner by bubbling through the spent catalyst mixture an inactive gas such as trichlorotrifluoroethane at an elevated temperature to convert and to remove high melting point or high sublimating point substances as lower boiling point substances; converting fluorinated antimony into chlorinated antimony by means of a chlorinating agent such as carbon tetrachloride; converting antimony (III) into antimony (V) by oxidation with chlorine; and recovering antimony pentachloride by distillation. The antimony pentachloride thus recovered may readily be used as a catalyst for fluorination of a chlorinated hydrocarbon by reaction with hydrogen fluoride.

REFERENCES:
patent: 3760059 (1973-09-01), Ertel et al.
patent: 3767566 (1973-10-01), Cartmell
patent: 3784671 (1974-01-01), Joerchel et al.
patent: 3888762 (1975-06-01), Gerhold
patent: 4005176 (1977-01-01), Fernschild et al.

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