Ammonium dodecamolybdomolybdate and method of making
US7300492B2 · kind B2 · utility
3Cited by
6References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 1, 2004 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Aug 2, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/86
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A novel molybdenum compound, ammonium dodecamolybdomolybdate (AMM), is described which may be used in the manufacture of molybdenum metal and molybdenum carbide powders. The molybdenum compound is a dodecaheteropoly acid salt having a Keggin-type structure wherein molybdenum resides in both the hetero as well as peripheral atomic positions. The novel compound has the general formula (NH4)2Mo12MoO40·6H2O. Because of its low solubility, the compound can be crystallized efficiently and at a high purity from ammonium molybdate solutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.