Ppg Industries, Inc.

Walker H Rideout

John Douglas Mansell

Mary E Jeselnik

In the preparation of methylchloroform by vapor phase chlorination of 1,1-dichloroethane, the formation of undesirable chlorohydrocarbon reaction products is suppressed by conducting the vapor phase reaction in the presence of a controlled amount of elemental oxygen.

Vapor phase chlorination of 1,1-dichloroethane

An aqueous alkaline waste stream containing chlorinated hydrocarbons is treated in an electrolytic diaphragm cell both to reduce the organics content of the waste stream as well as to recover chlorine and caustic values.

Removal of organic contaminants from waste water

In the preparation of methylchloroform by vapor phase chlorination of 1,1-dichloroethane, the formation of undesirable chlorohydrocarbon reaction products is suppressed by conducting the vapor phase reaction in the presence of a controlled amount of carbon dioxide gas.

The chloral content of ethylene dichloride, produced by the catalytic vapor phase oxychlorination of ethylene, is reduced by passing the gaseous effluent stream from the oxychlorination reactor through a bed of alumina.

Growing community of inventors

Corpus Christi, TX, United States of America

Walker H Rideout