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US 4,435,379 AGranted
Process for treating chlorinated hydrocarbons
AssigneeThe Dow Chemical Company
InventorsRobert S. Olson, Joseph P. Surls, Jr., Ben F. West
Life of this patent
Estimating the term…
Abstract
A process is described for reacting chlorinated hydrocarbons other than carbon tetrachloride with metal oxides so as to convert essentially all of the carbon atoms to oxides of carbon. This process provides an efficient and economical means for utilizing chlorinated hydrocarbons.
Claims11
A process for using a chlorinated hydrocarbon to convert a metal oxide to a metal chloride or metal oxychloride, said process consisting essentially of:
- contacting at reactive conditions at least one gaseous chlorinated hydrocarbon of the formula C.sub.a H.sub.b Cl.sub.C, wherein "a" is an integer greater than 1, "c" is an integer greater than 0 and "b" is an integer equal to at least 0, with a sufficient quantity of a suitable refractory metal oxide and a sufficient quantity of chlorine to convert substantially all of the carbon atoms of the chlorinated hydrocarbon to carbon monoxide or carbon dioxide and to convert any hydrogen moieties present on the chlorinated hydrocarbon to hydrogen chloride, wherein the ratio of carbon atoms present to oxygen atoms available for reaction is in the range from about 1:1 to about 1:2 and the metal oxide is chlorinated contemporaneously with the oxidation of the chlorinated hydrocarbon.
Dependencies are inferred from the claim text.