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US 2004/0166044 A1Published application
Process for production of sodium borohydride from sodium aluminum hydride with recycle of byproducts
AssigneeRohm and Haas Company
InventorEugene Christopher Ashby
Life of this patent
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Abstract
A process for production of sodium borohydride. The process comprises the steps of: (a) combining a boric acid ester, B(OR)3 and sodium aluminum hydride to produce sodium borohydride and Al(OR)3; and (b) combining Al(OR)3 and sulfuric acid to produce alum and ROH.
Claims10
A process for production of sodium borohydride;
- said process comprising steps of:
- (a) combining a boric acid ester, B(OR)3 and sodium aluminum hydride to produce sodium borohydride and Al(OR)3;
- and
- (b) combining Al(OR)3 and sulfuric acid to produce alum and ROH;
- wherein R represents alkyl, aryl or aralkyl.
2 more elements
A process for production of sodium borohydride;
- said process comprising steps of:
- (a) combining a boric acid ester precursor and an aliphatic or aromatic alcohol, ROH, to produce a boric acid ester, B(OR)3;
- (b) combining sodium, aluminum and hydrogen to produce sodium aluminum hydride;
- (c) combining the boric acid ester and the sodium aluminum hydride to produce sodium borohydride and Al(OR)3;
- and
- (d) combining Al(OR)3 and sulfuric acid to produce alum and ROH;
- wherein R represents alkyl, aryl or aralkyl.
4 more elements
Dependencies are inferred from the claim text.