Method for producing zirconia colloids
US9802174B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Dec 26, 2012 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Dec 26, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/85
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention pertains to a method for producing a colloidal suspension of zirconia particles, comprising the following successive steps: a) subjecting a mixture of zirconium oxychloride and an alkali metal halide in an aqueous solvent to hydrothermal treatment at a temperature above 150° C., so as to obtain a suspension in the form of a two-phase mixture comprising a slurry and a supernatant, b) without first peptizing it, desalting said suspension so as to form a colloidal suspension of zirconia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.