EXTRACTION OF METALS

摘要

A process for extracting a target metal ion from an aqueous feedstock containing, inter alia, the target metal ion. The process comprises providing said feedstock and contacting the feedstock with a room temperature ionic liquid (RTIL) that is substantially free of an extraneous organic extractant under liquid-liquid extraction conditions for a time sufficient to allow transfer of at least some of the target metal ions from the feedstock to the RTIL. The RTIL is then separated from the feedstock and the target metal ions are recovered from the RTIL.

主权项

1. A process for extracting a target metal ion from an aqueous feedstock containing, inter alia, the target metal ion, the process comprising:
providing said feedstock; contacting the feedstock with a room temperature ionic liquid (RTIL) comprising a cationic component and an anionic component under liquid-liquid extraction conditions for a time sufficient to allow transfer of at least some of the target metal ion from the feedstock to the RTIL; separating the RTIL from the feedstock; recovering the target metal ions from the RTIL,wherein the RTIL and the aqueous feedstock is substantially free of an extraneous organic extractant.