Process for production of a borohydride compound

Details Process for production of a borohydride compound Process for production of a borohydride compound

C - Chemistry, Metallurgy

01

B

C01B 6/10 (2006.01) C01B 6/00 (2006.01) C01B 6/04 (2006.01)

Patent

CA 2733608

A process for production of a borohydride compound M(BH4)y. The process has three steps. The first step combines a compound of formula (R1O)y M with aluminum, hydrogen and a metallic catalyst containing at least one metal selected from the group consisting of titanium, zirconium, hafnium, niobium, vanadium, tantalum and iron to produce a compound of formula M(A1H3OR1)y, wherein R1 is phenyl or phenyl substituted by at least one alkyl or alkoxy group; M is an alkali metal, Be or Mg; and y is one or two; wherein the catalyst is present at a level of at least 200 ppm based on weight of aluminum. The second step combines the compound of formula M(AlH3OR1)y with a borate, boroxine or borazine compound to produce M(BH4)y and a byproduct mixture containing alkali metal and aluminum aryloxides. The third step separates M(BH4)y from the byproduct mixture.

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