Process for the manufacture of 1,2-dichloroethane

Details Process for the manufacture of 1,2-dichloroethane Process for the manufacture of 1,2-dichloroethane

2007-06-21

2011-11-01

Wu, David W (Department: 1762)

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

Organic compounds

Halogen containing

C526S344000

Reexamination Certificate

active

08049047

ABSTRACT:
Process for the manufacture of 1,2-dichloroethane (DCE) starting with a hydrocarbon source which is subjected to a cracking thus producing a mixture of cracking products then subjected to treatment steps to obtain a mixture of products containing ethylene. The mixture is afterwards subjected to a first separation step into a fraction enriched with the compounds that are lighter than ethylene containing some of the ethylene conveyed to a chlorination reactor in which most of the ethylene is converted to DCE, and into a fraction F1which is subjected to a second separation step into a fraction F2and into a heavy fraction. Fraction F2is afterwards subjected to a third separation step into a fraction enriched with ethylene conveyed to an oxychlorination reactor in which most of the ethylene is converted to DCE, and into a fraction F3mainly composed of ethane.

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