Chlorination using partially calcined carbonaceous material as a

Details Chlorination using partially calcined carbonaceous material as a Chlorination using partially calcined carbonaceous material as a

1982-10-25

1984-07-10

Thomas, Earl C.

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

423136, 423137, 423461, C01F 760

Patent

active

044592744

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.

REFERENCES:
patent: 3755099 (1973-08-01), Haupin
patent: 3937786 (1976-02-01), Nemecz et al.
patent: 4073872 (1978-02-01), Willhoft
patent: 4135994 (1979-01-01), Ishikawa et al.
patent: 4182747 (1980-01-01), Gravey et al.
patent: 4244935 (1981-01-01), Dell
patent: 4264569 (1981-04-01), Sinha
patent: 4284607 (1981-08-01), Culleiton et al.

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