Process for the separation of iron from an organic solution containing uranium
US5017344A · kind A · utility
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20Claims
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Key dates
| Filing date | Jul 11, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Jul 11, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B60/026
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for separating iron +3 from uranium +6 is an organic solution of a neutral phosphine oxide and an acid organophosphorus compound. The uranium-containing organic solution is contacted with aqueous oxalic acid or an aqueous mixture of phosphoric acid and sulfuric acid so that most of the uranium remains in the organic solution and most of the iron passes into the aqueous acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.