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Study on Gold (I) Extraction from Containing Gold Polysulfide Solution with the Mixed Solvent of N_(1923)-TBP

Xianping Luo, Qun Yan

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Abstract

The primary amine N_(1923) with addition of different neutral solvents is tested for the extent of extraction Au(I) from containing gold polysulfide solution, and further study is conducted on Au(I) extraction with the mixed solvent of N_(1923)-TBP for its synergic effect. The experimental results show that many conditions except the diluent of the organic phase don't affect the Au(I) extraction, the diluent of the organic phase has an influence on the Au(I) extraction, diluents with aromatics extract gold at more alkaline pH values than that with non-aromatics. In low alkaline solution (equilibrium pH9), the primary amine N_(1923) would be the main extractant but in high alkaline solution (equilibrium pH9), TBP would be the main extractant.

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What this paper is about

The primary amine N_(1923) with addition of different neutral solvents is tested for the extent of extraction Au(I) from containing gold polysulfide solution, and further study is conducted on Au(I) extraction with the mixed solvent of N_(1923)-TBP for its synergic effect. The experimental results show that many conditions except the diluent of the organic phase don't affect the Au(I) extraction, the diluent of the organic phase has an influence on the Au(I) extraction, diluents with aromatics extract gold at more alkaline pH values than that with non-aromatics. In low alkaline solution (equilibrium pH9), the primary amine N_(1923) would be the main extractant but in high alkaline solution (equilibrium pH9), TBP would be the main extractant.

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Available abstract

The primary amine N_(1923) with addition of different neutral solvents is tested for the extent of extraction Au(I) from containing gold polysulfide solution, and further study is conducted on Au(I) extraction with the mixed solvent of N_(1923)-TBP for its synergic effect. The experimental results show that many conditions except the diluent of the organic phase don't affect the Au(I) extraction, the diluent of the organic phase has an influence on the Au(I) extraction, diluents with aromatics extract gold at more alkaline pH values than that with non-aromatics. In low alkaline solution (equilibrium pH9), the primary amine N_(1923) would be the main extractant but in high alkaline solution (equilibrium pH9), TBP would be the main extractant.

Key concepts: Diluent, Polysulfide, Extraction (chemistry), Chemistry, Amine gas treating, Solvent, Inorganic chemistry, Gold extraction

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Study on Gold (I) Extraction from Containing Gold Polysulfide Solution with the Mixed Solvent of N_(1923)-TBP — Research Paper | ScholarLens