Preparation of borohydride salts

C - Chemistry – Metallurgy – 01 – B

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C01B 6/21 (2006.01)

Patent

CA 2587802

A method for preparing a metal borohydride salt, M(BH4)n, where n is 1 or 2, from a slurry of sodium borohydride and a sodium alkoxide in a liquid hydrocarbon is disclosed. The method includes combining the slurry with 0.99 to 1.01 equivalents of a metal salt, M(X)n, and methanol, wherein M is Li, K, Rb, Cs, Mg, Ca, Sr or Ba; and X is alkoxide; filtering to collect M(BH4)n; and separating oil and methanol liquid phases to obtain sodium methoxide in methanol solution.

Divulgation d'une méthode de préparation d'un borohydrure de métal, M(BH4)n, dans lequel n est égal à 1 ou 2, à partir d'une boue de borohydrure de sodium et d'un alcoxyde de sodium dans un hydrocarbure liquide. Cette méthode comprend la combinaison de la boue avec 0,99 à 1,01 équivalent d'un sel de métal, M(X)n, et du méthanol, M représentant Li, K, Rb, Cs, Mg, Ca, Sr ou Ba, et X un alcoxyde, la filtration pour la collecte du M(BH4)n, et la séparation des phases liquides huileuse et de méthanol pour obtenir du méthoxyde de sodium en solution dans le méthanol.

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