Method for the production of α-alane

Details Method for the production of α-alane Method for the production of α-alane

2007-07-03

2007-07-03

Nazario-Gonzalez, Porfirio (Department: 1621)

Chemistry of inorganic compounds

Hydrogen or compound thereof

C423S645000, C556S170000

Reexamination Certificate

active

11329201

ABSTRACT:
A method of forming α-alane. The method includes reacting aluminum trichloride and an alkali metal hydride to form an alane-ether complex solution. An aqueous diethyl ether solution is optionally added to the alane-ether complex solution to form a partially hydrolyzed ether/alane-ether complex solution. A solution of a first crystallization additive is added to the alane-ether complex solution or to the aqueous ether/alane-ether complex solution to form a crystallization solution. The first crystallization additive is selected from the group consisting of polystyrene, polybutadiene, polystyrene-co-polybutadiene, polyisoprene, poly-alpha-methylstyrene, polystyrene-co-polyindene, poly-alpha-pinene, and mixtures thereof. Optionally, a second crystallization additive is added to the crystallization solution. The second crystallization additive is selected from the group consisting of squalene, cyclododecatriene, norbornylene, norbornadiene, a phenyl terminated polybutadiene, 2,4-dimethyl anisole, 3,5-dimethyl anisole, 2,6-dimethyl anisole, polydimethyl siloxane, and mixtures thereof. Solvents are removed from the crystallization solution to crystallize the α-alane.

REFERENCES:
patent: 3810974 (1974-05-01), King
patent: 3819335 (1974-06-01), Daniels et al.
patent: 3819819 (1974-06-01), Matzek
patent: 3844854 (1974-10-01), Self et al.
patent: 3869544 (1975-03-01), Niles et al.
patent: 4048087 (1977-09-01), Daniels et al.
patent: 5565183 (1996-10-01), Knott
patent: 6228338 (2001-05-01), Petrie et al.
patent: 6617064 (2003-09-01), Petrie et al.
patent: 6984746 (2006-01-01), Lund et al.
PCT International Search Report dated Mar. 14, 2005.
Brower et al., Preparation and Properties of Aluminum Hydride, J. Am. Chem. Soc., 98:9, Apr. 28, 1976, pp. 2450-2453.
Konovalov et al., High Pressures in the Chemistry of Beryllium and Aluminum Hydrides, Russian Journal of Inorganic Chem., vol. 37 (12), 1992, pp. 1361-1356.

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