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US 12,741,869 B2Granted
Sodium borohydride production method
AssigneeNippon Light Metal Company, Ltd.
InventorsKaoru Sugita, Yuji Oota, Yo Rene Abe, Takuma Hachisu, Takehiro Matsunaga
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Abstract
In a hermetic vessel filled with hydrogen gas, a sodium borate and aluminum powder are reacted at not less than 400° C. and not more than 560° C. while performing stirring to produce sodium borohydride with the molar ratio of sodium contained in the sodium borate being larger than 0.5 relative to boron contained in the sodium borate.
Claims4
A sodium borohydride production method comprising:
- dehydrating a mixture including a sodium borate and aluminum powder in a hydrogen gas atmosphere in a static condition;
- and
- reacting a mixture of the dehydrated sodium borate and aluminum powder in a hydrogen atmosphere at not less than 400° C. and not more than 560° C. while performing stirring;
- wherein a molar ratio of sodium to boron in the sodium borate is larger than 0.5.
1 more element
Dependencies are inferred from the claim text.