Production of 1,2-dichloroethane

Details Production of 1,2-dichloroethane Production of 1,2-dichloroethane

1978-04-24

1982-01-12

Gantz, Delbert E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C07C 17156

Patent

active

043107133

ABSTRACT:
1,2-dichloroethane is made by subjecting ethylene to an oxychlorination reaction with hydrogen chloride and a gas containing molecular oxygen in gas phase, at elevated temperature and in contact with a fluidized bed copper-II-chloride catalyst on a carrier, wherein the reaction gases are cooled under pressure in two condensation stages, condensed 1,2-dichloroethane and water are removed and the bulk of unreacted starting gas and inert gas are recycled. More specifically the reaction gases are delivered to a third condensation stage and cooled therein under pressure down to a temperature within the range 5.degree. to 18.degree. C. and to the extent necessary for the recycle gas to contain 0.5 to 3 volume % of 1,2-dichloroethane. Next, the recycle gas is directly admixed upstream of the reactor, with a quantity of pure oxygen necessary to replace consumed oxygen and re-establish an oxygen content of 12 to 25 volume % therein.

REFERENCES:
patent: 2602021 (1952-07-01), Belchetz
patent: 2846484 (1958-08-01), Fox
patent: 2952714 (1960-09-01), Milam et al.
patent: 3488398 (1970-01-01), Harpring et al.
patent: 4071572 (1978-01-01), Amato et al.

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