Process for the production of a uranium trioxide yellowcake from a uranian peroxide precipitate
US9822429B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2011 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Jan 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a process for the production of a uranium trioxide yellowcake from a uranium peroxide precipitate, the peroxide precipitate being in the form of a low solids content, uranium rich feed slurry, the process including the stages of: a. thickening the feed slurry to produce a thickener underflow with a solids content in the range of 15 to 50% w/w and a thickener overflow; b. dewatering the thickener underflow to produce a solids cake with a solids content of at least 50% w/w and a dewater overflow; and c. calcining the solids cake at a temperature in the range of 450° C. to 480° C. to produce a calcined uranium trioxide yellowcake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.