US 7,009,084 B2 · Method for producing 1, 2-dichloroethane by direct chlorination

Abstract

The invention relates to a method for producing high purity 1,2-dichloroethane using a liquid reaction medium that is circulated and that is essentially composed of 1,2-dichloroethane and a catalyst. At least ethylene and chlorine are added to the reaction medium and a mainly chlorine-containing gas flow is dissolved in a part of the reaction medium which is essentially devoid of dissolved ethylene. The gaseous components not dissolved in this solution are removed from the solution by means of a gas-separation device and the solution from which the undissolved gas components were removed is contacted with ethylene which is present in dissolved form.

Claims7

Dependent claims

A process for the production of high-purity 1,2-dichloroethane using a circulating stream of liquid reaction fluid which mainly consists of 1,2-dichloroethane and a catalyst, in which at least ethylene and chlorine are admixed to the reaction fluid, wherein

a gas stream with chlorine as the main constituent is dissolved in a portion of the reaction fluid, which is essentially free of dissolved ethylene,
the gaseous constituents non-dissolved in this solution, being removed from the said solution by means of a centrifugal gas separator as device for gas separation and
the solution freed from non-dissolved gas constituents being brought into contact with solute ethylene supplied for this purpose.

Dependencies are inferred from the claim text.

Method for producing 1, 2-dichloroethane by direct chlorination

Life of this patent

Method for producing 1, 2-dichloroethane by direct chlorination

Life of this patent

Abstract

Claims7