Preferential chlorination of alumina in kaolinitic ores

Details Preferential chlorination of alumina in kaolinitic ores Preferential chlorination of alumina in kaolinitic ores

1977-07-11

1979-02-13

Hearn, Brian

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

423136, 423137, C01F 760

Patent

active

041396022

ABSTRACT:
The present invention provides a novel process for the preferential chlorination of alumina over silica in the carbo-chlorination of kaolinitic ores to produce aluminum chloride. The process comprises introducing small amounts of alkali metal compounds with oxyanions into the carbo-chlorination process. Preferred embodiments are directed to particular compounds of alkali metals with oxyanions selected from the group consisting of carbonates, sulfates, hydroxides, oxides, phosphates, and the like. The present invention results in significantly reduced energy, manufacturing, and equipment costs and thus represents a breakthrough in the utilization of domestic ores such as kaolinitic clay for the production of aluminum chloride or alumina through oxidation of the aluminum chloride.

REFERENCES:
patent: 702943 (1902-06-01), Guiraud
patent: 1268015 (1918-05-01), King et al.
patent: 1392044 (1921-09-01), Booth
patent: 1509605 (1924-09-01), McKee
patent: 2084289 (1937-06-01), McAfee et al.
patent: 2239880 (1937-01-01), Curll
patent: 2823098 (1958-02-01), Mockrin
patent: 3816093 (1974-06-01), Hildreth
patent: 4082833 (1978-04-01), Wyndham et al.
Syeferovich, Y. E. "The Chlorination of Kaolin in the Presence of a Catalyst for the Production of Anhydrous Aluminum Chloride", J. Chem. Ind. (Moscow), 1934, No. 10, pp. 62-64 (Translation relied on.).
Krech, E. I. "Catalytic Chlorination", Journal of General Chemistry (USSR), vol. 7, pp. 1249-1263, (1937) (Translation).

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