公开(公告)号：US5294423A

公开(公告)日：1994-03-15

申请号：US873462

申请日：1992-04-24

申请人： Stephane Lorthioir ,  Claude Humbert-Droz ,  Serge Trennoy

发明人： Stephane Lorthioir ,  Claude Humbert-Droz ,  Serge Trennoy

IPC分类号： C01B6/21 ,  C01B6/17

CPC分类号： C01B6/21

摘要： The invention relates to a process for the preparation of an alkali metal borohydride.According to this process, a mixture of an alkali metal hydride, boric anhydride and a hydrogenation catalyst such as Raney nickel is raised to a temperature of 250.degree. to 300.degree. C. under a hydrogen atmosphere. This gives an alkali metal borohydride, such as lithium-n borohydride, in accordance with the following reaction:4LiH+B.sub.2 O.sub.3 .fwdarw.LiBH.sub.4 +Li.sub.3 BO.sub.3,with a yield which can reach 93.3% at a temperature of 300.degree. C.

摘要翻译： 本发明涉及一种制备碱金属硼氢化物的方法。 根据该方法，在氢气氛下，将碱金属氢化物，硼酸酐和阮内镍等氢化催化剂的混合物升温至250〜300℃。 根据以下反应，得到碱金属硼氢化物，如锂 - 氢硼酸锂：4LiH + B2O3-> LiBH4 + Li3BO3，产率可在300℃的温度下达到93.3％