Copper extraction from chloride solutions with mixtures of solvating and chelating reagents

Journal Article · Sat Jan 01 04:00:00 EST 2000 · Solvent Extraction and Ion Exchange

DOI:https://doi.org/10.1080/07366290008934673· OSTI ID:20019009

Borowiak-Resterna, A; Szymanowski, J

Equimolar mixtures of N,N,N{prime},N{prime}-tetrahexylpyridine-3,5-dicarboxamide (L) with 2-hydroxy-5-t-octylbenzophenone oxime or 1-phenyldecane-1,3-dione (HB), were used to extract copper from chloride solutions of various concentration of chloride ions. Chloride ions were then scrubbed out with water or ammoniacal solutions and copper was transferred from the solvate CuCl{sub 2}L{sub 2} to chelate CuB{sub 2}. Both studied systems permit effective extraction of copper and removal of chloride ions from the organic phase. Some protonation of solvating reagent L occurs, however, when copper is stripped from the chelate with hydroxyoxime. This negative effect can be suppressed when 1-phenyldecane-1,3-dione is used as a chelating agent. The scrubbing of chloride ions must be then carried out with ammoniacal solutions to avoid simultaneous stripping of copper.

• Research Organization: Poznan Univ. of Technology (PL)
• OSTI ID: 20019009
• Journal Information: Solvent Extraction and Ion Exchange, Journal Name: Solvent Extraction and Ion Exchange Journal Issue: 1 Vol. 18; ISSN 0736-6299; ISSN SEIEDB
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CHELATING AGENTS
CHLORIDES
COPPER
HYDROMETALLURGY
MATERIALS RECOVERY
PERFORMANCE
SOLVENT EXTRACTION