Method and apparatus for producing sodium borohydride
AssigneeHydric Power Systems Co., Ltd.
InventorAtsuhiro Yoshizaki
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Abstract
A method and an apparatus for producing sodium borohydride that have excellent energy efficiency and production efficiency are provided. Using a production apparatus 20 comprising: a cylindrical reaction container 21; a cylindrical reaction portion 22 which is rotatably held in this reaction container 21 and in which sodium metaborate that is a raw material 1 and granular aluminum are housed together with a grinding medium 2; and a hydrogen introduction portion 23 for introducing hydrogen gas into the reaction portion 22 directly or via the reaction container 21, the sodium metaborate and the granular aluminum are reacted under a hydrogen atmosphere, while being rolled and ground with the grinding medium, to obtain sodium borohydride.
Claims7
A method for producing sodium borohydride from sodium metaborate, comprising a step of:
- reacting anhydrous sodium metaborate (anhydrous NaBO2) and granular aluminum consisting essentially of aluminum under a hydrogen atmosphere, while rolling and grinding the anhydrous sodium metaborate (anhydrous NaBO2) and the granular aluminum using a grinding medium, to obtain sodium borohydride, wherein the mixture comprising the anhydrous sodium metaborate (anhydrous NaBO2) and the granular aluminum.
Dependencies are inferred from the claim text.