Removal of chloral from effluent gas of 1,2-dichloroethane synth

Details Removal of chloral from effluent gas of 1,2-dichloroethane synth Removal of chloral from effluent gas of 1,2-dichloroethane synth

1976-03-18

1976-12-07

Horwitz, D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 1738

Patent

active

039963004

ABSTRACT:
In the manufacture of ethylene dichloride by the oxychlorination of ethylene, chloral is a highly corrosive by-product which must be removed prior to condensing the product gases in order to avoid damage to the condenser. The effluent from the oxychlorination reactor is quenched by a counter-current flow of an aqueous solution of alkali or alkaline earth metal hydroxides, carbonates, bicarbonates or borates maintained at a pH of about 8-9. This enables the chloral to react without an appreciable loss of carbon dioxide from the non-condensible product gases which are employed as recycle diluent in the process.

REFERENCES:
patent: 3378597 (1968-04-01), Dehn et al.

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