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. 02, 1979
Filed:
Jul. 22, 1974
Jamal S Eden, Akron, OH (US);
The B. F. Goodrich Company, Akron, OH (US);
Abstract
There is disclosed an improved method of making chlorinated derivatives of ethylene wherein chlorine-containing by-products are burned in a catalytic combustion reactor to produce primarily a hydrogen halide which is recycled to the chlorinated derivative reaction and the heat of combustion from said reactor is utilized to preheat the materials used in said chlorinated derivative reaction. The catalyst employed is one containing 0.01% to 0.50% of platinum or palladium on 99.99% to 99.50% Al.sub.2 O.sub.3, SiO.sub.2 or a combination of Al.sub.2 O.sub.3 and SiO.sub.2 as a support and having a surface area of at least 50 square meters per gram. The catalytic combustion reaction is carried out at temperatures in the range of about 300.degree. C. to about 450.degree. C. to produce a mixture of gases containing essentially hydrogen chloride and being substantially free of elemental chlorine and chlorohydrocarbon compounds, said gases being then mixed with ethylene and reacted to form ethylene dichloride (EDC).