Recovery of chlorine values in integrated process for oxychlorin

Details Recovery of chlorine values in integrated process for oxychlorin Recovery of chlorine values in integrated process for oxychlorin

1981-01-26

1982-08-24

Thomas, Earl C.

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

423240, 423481, 570203, 570224, 570225, 570243, 570244, C01B 701, C07C 2100

Patent

active

043460690

ABSTRACT:
In an integrated process for oxychlorination and combustion of chlorinated hydrocarbons, chlorinated hydrocarbons is burned to recover chlorine values essentially as hydrogen chloride. Combustion effluent and off-gas from an oxychlorination reaction are simultaneously treated to recover anhydrous hydrogen chloride for use in the oxychlorination reaction. In accordance with one embodiment, off-gas from the oxychlorination is employed in the combustion, prior to hydrogen chloride recovery in order to utilize any oxygen values therein. The process has particular applicability to an oxychlorination reaction of the type wherein a molten salt containing the higher and lower valent chlorides of a multivalent metal is contacted with hydrogen chloride and oxygen to recover hydrogen chloride by enriching the higher valent metal chloride content of the molten salt.

REFERENCES:
patent: 3816599 (1974-06-01), Kafes
patent: 3950443 (1976-04-01), Prahl
patent: 3968050 (1976-07-01), Riegel
patent: 3968200 (1976-07-01), Tsao
patent: 4036776 (1977-07-01), Riegel et al.
patent: 4073871 (1978-02-01), Optiz
patent: 4119705 (1978-10-01), Riegel et al.
patent: 4133786 (1978-09-01), Tsao

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