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:
Oct. 10, 1978
Filed:
Aug. 30, 1976
Theodore S Boozalis, Lake Jackson, TX (US);
John B Ivy, Lake Jackson, TX (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
An improved process for preparation of 1,1,1-trichloroethane and/or vinylidene chloride by the direct high temperature chlorination of ethane, ethyl chloride, ethylene, 1,1-dichloroethane or mixtures thereof wherein the relatively small quantities of unsaturated, chlorinated compounds containing more than two carbon atoms formed as by-products are selectively reacted with elemental chlorine to produce stable compounds which are not detrimental to the efficient operation of subsequent iron catalyzed hydrochlorination and dehydrochlorination steps. This is accomplished in the presence of relatively high concentration of valuable unsaturated C.sub.2 's.