Process for the production of high purity zirconia
US4746497A · kind A · utility
7Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1986 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Sep 24, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the production of high-purity zirconia from dissociated zircon or other zirconiferous material is disclosed. The process includes leaching of the zirconiferous material with concentrated sulphuric acid and continuously removing the water formed during leaching to maintain the concentration of sulphuric acid at a substantially constant level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.