Chemistry of inorganic compounds – Halogen or compound thereof – Plural metal or metal and ammonium containing
Patent
1974-08-01
1978-02-28
Stern, Edward
Chemistry of inorganic compounds
Halogen or compound thereof
Plural metal or metal and ammonium containing
423462, 423466, C01D 300, C01F 704, C01F 748
Patent
active
040767949
ABSTRACT:
A process is described for the production of sodium, potassium or lithium tetrahaloaluminates, in which the halogen may be chlorine, bromine or iodine, by the reaction of an aluminum halide with at least the stoichiometric amount of an alkali metal halide in the presence of powdered aluminum metal and a stable liquid hydrocarbon solvent, preferably an aromatic hydrocarbon solvent or mixtures of aromatic and saturated hydrocarbon solvents, at a temperature in the range from about 60.degree. C. up to the reflux temperature of the reaction mixture, filtering the hot reaction mixture to remove remaining aluminum metal and other solids, cooling the filtrate to below about 30.degree. C., and separating and washing the resulting crystals to obtain the substantially pure alkali metal tetrahaloaluminate; the entire process being carried out under anhydrous conditions and an inert atmosphere.
REFERENCES:
patent: 3440296 (1969-04-01), Walker
patent: 3761578 (1973-09-01), Anderson
patent: 3832452 (1974-08-01), Crouch, Jr.
Hackh's Chemical Dictionary, 4th Ed., 1969, by Julius Grant, p. 31, Published by McGraw-Hill Book Co., New York.
Foote Mineral Company
Stern Edward
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