Patent ID: 6670444
Filing Date: 2003-12-30
Classification: C01B,F17C,Y02E,Y02P

Abstract:
A process for producing borohydride compounds represented by the formula YBH4, comprising:(A) reacting a boron-containing compound represented by the formula BX3 with hydrogen or an aldehyde selected from the group consisting of formaldehyde, benzaldehyde, acetaldehyde, and mixtures thereof to obtain diborane; and (B) reacting the diborane with a Y-containing base selected from those represented by the formula Y2O, YOH and Y2CO3 to obtain YBH4 and YBO2, wherein Y is selected from the group consisting of the alkali metals, pseudo-alkali metals, alkaline earth metals, an ammonium ion, and quaternary amines of the formula NR4+, wherein each R is independently selected from hydrogen and a straight- or branched-chain C1-4 alkyl group; and wherein X is selected from the group consisting of halide ions, â€”OH, â€”Râ€² and â€”ORâ€² groups, chalcogens, and chalcogenides, wherein Râ€² is a straight- or branched-chain C1-4 alkyl group.