Research on Copper Solvent Extraction from the Solution Containing High Concentration of Sulphuric Acid and Iron

Dian Kun Lu; Zhe Nan Jin; Li Fang Shi

doi:10.4028/www.scientific.net/AMR.391-392.1143

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 391-392Research on Copper Solvent Extraction from the...

Research on Copper Solvent Extraction from the Solution Containing High Concentration of Sulphuric Acid and Iron

Abstract:

Three commercial extractants LIX984N, LIX606N and LIX973N were chosen for the research on Cu²⁺ extraction from the solutions bearing high concentration of sulfuric acid and iron. The ability of Cu²⁺ extraction and Cu/Fe separation performance were totally compared among the three extractants. The results show that LIX606N and LIX973N both possess more powerful ability in Cu²⁺ extraction as compared to LIX984N. But, LIX973N and LIX984N has better Cu/Fe separation performance than LIX606N. According to the performance of Cu²⁺ extraction and Cu/Fe separation, LIX973N is more suitable for extracting Cu²⁺ from the solution rich in sulfuric acid and Fe³⁺.Effects of sulfuric acid and Fe³⁺ concentration on Cu²⁺ extraction by 20%LIX973N-kerosene have been examined. When aqueous sulfuric acid concentration increases from 23.48g/L to 62.16g/L, Cu²⁺ extraction recovery drops from 60.42% to 25.21%; When aqueous Fe³⁺ concentration increases from 7.03g/L up to 42.94g/L, Fe³⁺ concentration in organic phase increases from 0.26g/L to 0.82g/L.

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Periodical:

Advanced Materials Research (Volumes 391-392)

Pages:

1143-1148

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.391-392.1143

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Online since:

December 2011

Authors:

Dian Kun Lu, Zhe Nan Jin, Li Fang Shi

Keywords:

Copper, Fe³⁺ Concentration, LIX973N Extractant, Sulphuric Acid

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