The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 1976
Filed:
Mar. 06, 1975
Applicant:
Inventors:
Joseph P Kleiman, Birmingham, MI (US);
Kestutis A Keblys, Southfield, MI (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423502 ; 2606 / ;
Abstract
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.