| abstract |
A chlorinated hydrocarbon, such as dichloroethane, is recovered from an oxychlorination reaction effluent by cooling the effluent to condense chlorinated hydrocarbon and water, combining the remaining gas with hydrogen chloride in an amount to produce, in the subsequent cooling step, an aqueous hydrogen chloride condensate which does not freeze, and cooling the combined stream to condense remaining chlorinated hydrocarbon and aqueous hydrogen chloride. |