Process of extraction of a platinum group metal or gold from organic compositions with surfactants
US10752976B2 · kind B2 · utility
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Key dates
| Filing date | May 19, 2017 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | May 19, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is in the field of surfactants to extract a platinum group metal or gold, in particular palladium, from organic compositions. In particular, the invention concerns the use of surfactants to back-extract a platinum group metal or gold, in particular palladium, from organic compositions further comprising an extractant of said platinum group metal or gold, in particular palladium from an aqueous solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.