Method for the recovery of actinides and/or lanthanides using novel extraction agents, and novel propane diamides, and the preparation thereof
US4938871A · kind A · utility
20Cited by
3References
14Claims
0Family size
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Inventors
Key dates
| Filing date | Jun 8, 1988 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Jun 8, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to the preparation and use of novel extracting agents and novel propane diamides for the recovery of actinides and/or lanthanides. These extracting agents are constituted by propane diamides of formula: ##STR1## For example, the extracting agent can be 2-hexyl-N,N'-dimethyl-N,N'-dibutyl-propane diamide or 2-ethoxyethyl-N,N'-dimethyl-N,N'-dibutyl-propane diamide. They are more particularly used for the recovery of actinides and/or lanthanides present in the trivalent state in an acid aqueous solution, particularly in a nitric solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.