| US 7,608,233 B1 | ||
| Direct synthesis of calcium borohydride | ||
| Ewa Carin Ellinor Rönnebro, Dublin, Calif. (US); and Eric H. Majzoub, Pleasanton, Calif. (US) | ||
| Assigned to Sandia Corporation, Livermore, Calif. (US) | ||
| Filed on May 24, 2007, as Appl. No. 11/807,012. | ||
| Claims priority of provisional application 60/901248, filed on Feb. 12, 2007. | ||
| Int. Cl. C01B 6/13 (2006.01); C01B 6/24 (2006.01); C01B 6/00 (2006.01); C01B 6/04 (2006.01); C01B 3/02 (2006.01); C01B 3/08 (2006.01) | ||
| U.S. Cl. 423—286 [423/644; 423/645; 423/646; 423/648.1; 423/658.2] | 12 Claims |
| 1. A method of producing a complex borohydride compound capable of reversible hydrogenation, comprising:
mechanically mixing an alkaline earth metal hydride with an alkaline earth metal boride powder and a powder of metal chloride
catalyst compound in order to provide a compound mixture, wherein the metal chloride catalyst comprises about 4 to about 8
weight percent of the combined weight of the alkaline earth metal hydride and the alkaline earth metal boride; and
hydrogenating the compounded mixture at an elevated temperature and pressure to provide an alkaline earth metal borohydride
compound.
|