Solvent Extraction of Gold from Ammonium Thiosulfate Solution by Trioctylmethylammonium Chloride (1<sup>st</sup> report)

DOI Web Site Web Site 4 Citations 49 References

Bibliographic Information

Other Title
  • 塩化トリオクチルメチルアンモニウムを用いたチオ硫酸アンモニウム水溶液からの金の溶媒抽出(第一報)
  • 塩化トリオクチルメチルアンモニウムを用いたチオ硫酸アンモニウム水溶液からの金の溶媒抽出(第1報)塩化トリオクチルメチルアンモニウムによる抽出特性
  • エンカ トリオクチルメチルアンモニウム オ モチイタ チオ リュウサン アンモニウム スイヨウエキ カラ ノ キン ノ ヨウバイ チュウシュツ ダイ1ポウ エンカ トリオクチルメチルアンモニウム ニ ヨル チュウシュツ トクセイ
  • －塩化トリオクチルメチルアンモニウムによる抽出特性－
  • - Extraction Properties of Gold by Trioctylmethylammonium Chloride -

Search this article

Abstract

Hydrometallurgical process as like a solvent extraction is very important to recovery precious metals from raw materials and metals scraps. Recently, authors have ever indicated the leaching process of gold by using ammonium thiosulfate solution from sponge gold, low concentrate ore and electronics scrap.<BR>In this study trioctylmethylammonium chloride (TOMAC, (C8H17)3CH3NCl) was used as an extractant to extract gold from ammonium thiosulfate leaching solution. The influence of TOMAC concentration, retention (shaking) time, stripping process, multi stage extraction tests were investigated. It was found that the effective conditions for gold solvent extraction by TOMAC, such as 0.18 mol / l TOMAC diluted with n-octane at organic and water phase ratio of 1 : 1 could extract more than 99% of gold from the ammonium thiosulfate leaching solution at standard leaching condition (1.0 mol / l S2O32-, 0.03mol / l Cu2+ ion and 3.0mol / l NH3/NH4+ at pH10.5).

Journal

  • Shigen-to-Sozai

    Shigen-to-Sozai 120 (6,7), 406-411, 2004

    The Mining and Materials Processing Institute of Japan

Citations (4)*help

See more

References(49)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top