Process for disposing of halons or halon-containing fluorocarbon

Details Process for disposing of halons or halon-containing fluorocarbon Process for disposing of halons or halon-containing fluorocarbon

1993-03-25

1995-10-10

Lewis, Michael

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

588209, 588212, 423481, 423484, 423488, 423500, C01B 701, C01B 719

Patent

active

054572673

ABSTRACT:
A process for disposing of bromofluorocarbons, bromochlorofluorocarbons, or mixtures of any of bromofluorocarbons, bromochlorofluorocarbons, fluorocarbons, or chlorofluorocarbons. The process comprises thermally cleaving halons, halon-containing fluorocarbons, or halon containing chlorofluorocarbons, cooling the resulting gas stream, oxidizing the resulting hydrogen bromide to bromine by feeding excess elemental chlorine into the gas stream, absorbing the resulting HF or HCl from the gas stream with recovery of hydrofluoric acid or hydrochloric acid, and finally separating elemental bromine and chlorine from each other by distillation or reducing both to give the salts.

REFERENCES:
patent: 3442614 (1969-05-01), Frazee et al.
patent: 3875293 (1975-01-01), Davis
patent: 3919398 (1975-11-01), Davis
patent: 3959450 (1976-05-01), Calloue et al.
patent: 4031194 (1977-06-01), Ogawa et al.
patent: 4125595 (1978-11-01), Kunze et al.
patent: 4982039 (1991-01-01), Benson et al.

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