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:
Nov. 08, 1977
Filed:
Dec. 23, 1974
Rhone-Poulenc Industries, , FR;
Abstract
The process of oxychlorination of ethylene to produce a product in which at least 15 molar per cent of the ethylene is transformed to 1,1,2-trichloroethane and 1,1,2,2-tetrachloroethane along with 1,2-dichloroethane and other more highly chlorinated saturated C.sub.2 compounds, the steps of passing a gaseous feed mixture of ethylene, hydrochloric acid and an oxygen-containing gas, with or without additional 1,2-dichloroethane, through a reaction zone at a temperature of 280.degree. to 370.degree. C, using a fluidized bed catalyst, and in which the molar feed ratios of the reactants are O.sub.2 /C.sub.2 H.sub.4 within the range of above 0.9 to 1.5, HCl/O.sub.2 within the range of 1.40 to 3.00, HCl/C.sub.2 H.sub.4 within the range of 2.20 to 3.65, and which, when 1,2-dichloroethane is present in the feed mixture, the latter is present in a molar proportion with respect to ethylene of less than 2.