Perilaku Adsorpsi Emas Dari Larutan Ammonium Thiosulfat Dengan Karbon Aktif Dan Resin Penukar Ion [Study of Adsorption Behaviour of Gold from Thiosulfate Solution onto Activated Carbon and Ion Exchange Resin]
| Autor: | Wahyudin Prawira M, M. Zaki Mubarok |
|---|---|
| Rok vydání: | 2016 |
| Zdroj: | Metalurgi. 31:69 |
| ISSN: | 2443-3926 0126-3188 |
| DOI: | 10.14203/metalurgi.v31i2.161 |
| Popis: | Effective recovery methods of gold from thiosulfate solution are still being studied by many researchers. In this paper, results of gold adsorption tests in ammonium thiosulfate solutions using 3 types of ion exchange resin and activated carbon is discussed. Series of batch adsorpsion tests at room temperature have been carried out within pH range of 7-9 to study Au adsorption behaviour from thiosulfate solution onto four types of adsorbents, loading capacity and adsorption kinetics of each adsorbent. The investigation results show that recovery of gold from pregnant leach solution of gold ore in ammonium thiousulfate can be effectively performed by using a strong-base resin of Lewatit Monoplus MP 800. At a pH range of 7-9, adsorption percentages of Au onto the strong-base resin of Lewatit Monoplus MP exceed 97% after 2 hour and reach a maximum level of 100% after 25 hour at pH 8. In contrast, activated carbon did not exhibit a sufficient performance in recovery of Au from thiosulfate solution, in which the highest adsorption percentage of Au after 25h |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|