Hydride production at moderate pressure
US4512966A · kind A · utility
7Cited by
8References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Dec 2, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B6/243
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An effective two stage process for the production of sodium aluminum tetrahydride which facilitates use of equipment at moderate hydrogen pressure of 700-1500 psig. An aluminum alkyl is added to provide a catalyst species in a hydrocarbon reaction medium containing aluminum and sodium reactants. A reaction at about 130.degree.-170.degree. C. is carried out to form Na.sub.3 AlH.sub.6. The reaction temperature is then lowered to about 80.degree.-120.degree. C. and the hydrogen pressure is continued to convert the Na.sub.3 AlH.sub.6 to NaAlH.sub.4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.