Ethyl Corporation

Joseph P Kleiman

Kestutis A Keblys

Bromine is produced by reacting chlorine and ethylene dibromide in the presence of an iron halide catalyst, e.g. ferric chloride.

Preparation of bromine

Bromine is produced by reacting chlorine and ethylene dibromide in the presence of an aluminum halide catalyst, e.g. aluminum chloride. A small amount of bromine present prior to chlorine addition shortens the induction period. Some decomposition of the organic product occurs if it is distilled in the presence of aluminum-containing residues. These residues can be removed by water wash which can be followed by drying with H.sub. 2 SO.sub. 4 . After such treatment, ethylene dichloride can be recovered by distillation without substantial decomposition.

Vinylidene bromide and vinylidene chlorobromide are stabilized by a conjugated butadiene such as isoprene used in conjunction with a phenolic composition such as butylated hydroxyanisole.

Growing community of inventors

Birmingham, MI, United States of America

Joseph P Kleiman