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:
Jul. 16, 1985
Filed:
May. 08, 1984
Raouf O Loutfy, Tucson, AZ (US);
James C Withers, Tucson, AZ (US);
Subodh K Das, Tucson, AZ (US);
Samuel S Jones, Tucson, AZ (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
An improved solid carbon reductant comprising partially calcined carbonaceous materials such as petroleum coke, containing relatively low amounts of residual hydrocarbons and a relatively high surface area and thus increased activity as compared to known reductants is provided. This improved reductant is produced by a method comprising heating the carbonaceous material in an oxidizing atmosphere to a temperature of from about 650.degree. C. to about 950.degree. C., preferably from about 800.degree. C. to about 875.degree. C., and most preferably at a temperature about 850.degree. C. In addition, according to the present invention improved chlorination processes are provided using these reductants which result in reduced levels of chlorinated hydrocarbon (C.sub.x Cl.sub.y) production due to reduced residual hydrocarbons. In a preferred embodiment anhydrous aluminum chloride is produced by chlorination of aluminum hexahydrate using the improved reductant.