Methods of preparing high purity aluminum hydroxide and high purity aluminum oxide
US9643857B2 · kind B2 · utility
1Cited by
9References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 6, 2015 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Apr 21, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This application discloses methods and processes for preparation of high purity aluminum hydroxide and high purity aluminum oxide. The method of preparing high purity aluminum hydroxide involves reacting aluminum with water in the presence of one or more catalysts and one or more complexing agents that can react with non-aluminum metal impurities to form soluble complexes for effective removal through rinsing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.