Adsorption of Gold from Copper–Tartrate–ThiosulfateSolutions with Ion-Exchange Resins
The adsorption behavior of gold from copper–tartrate–thiosulfate solutions with ion-exchange resins was studied in this paper. Experimental parameters include resin dosage, pH, temperature, copper, tartrate, and thiosulfate concentration. A moderate increase in resin dosage, pH, temperature, and tar...
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MDPI AG
2023-08-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/8/1443 |
| _version_ | 1797583867965603840 |
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| author | Yan Fu Junnan Chen Feng Xie Zhichao Cao Wei Wang |
| author_facet | Yan Fu Junnan Chen Feng Xie Zhichao Cao Wei Wang |
| author_sort | Yan Fu |
| collection | DOAJ |
| description | The adsorption behavior of gold from copper–tartrate–thiosulfate solutions with ion-exchange resins was studied in this paper. Experimental parameters include resin dosage, pH, temperature, copper, tartrate, and thiosulfate concentration. A moderate increase in resin dosage, pH, temperature, and tartrate concentration is beneficial for gold adsorption, but an excessive tartrate concentration or higher temperature depresses the adsorption process. Increasing copper and thiosulfate concentrations may competitively occupy the active sites on the resin surface, leading to a reduction in the gold adsorption capacity. The XPS and FT-IR analyses indicate that copper and gold on the resin after adsorption mainly exist in the form of Cu<sup>+</sup> and Au<sup>+</sup>, and sulfur mainly exists in the form of SO<sub>4</sub><sup>2−</sup> and S<sub>2</sub>O<sub>3</sub><sup>2−</sup>. This implies that the use of resin for gold recovery from thiosulfate leachate may face critical challenges because there is inevitably a higher content of copper and thiosulfate. |
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| format | Article |
| id | doaj.art-f6849ec2da1d4bee8afd86fa6e12a7e0 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T23:45:07Z |
| publishDate | 2023-08-01 |
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| spelling | doaj.art-f6849ec2da1d4bee8afd86fa6e12a7e02023-11-19T02:11:16ZengMDPI AGMetals2075-47012023-08-01138144310.3390/met13081443Adsorption of Gold from Copper–Tartrate–ThiosulfateSolutions with Ion-Exchange ResinsYan Fu0Junnan Chen1Feng Xie2Zhichao Cao3Wei Wang4Key Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education), Northeastern University, Shenyang 110819, ChinaKey Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education), Northeastern University, Shenyang 110819, ChinaKey Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education), Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaKey Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education), Northeastern University, Shenyang 110819, ChinaThe adsorption behavior of gold from copper–tartrate–thiosulfate solutions with ion-exchange resins was studied in this paper. Experimental parameters include resin dosage, pH, temperature, copper, tartrate, and thiosulfate concentration. A moderate increase in resin dosage, pH, temperature, and tartrate concentration is beneficial for gold adsorption, but an excessive tartrate concentration or higher temperature depresses the adsorption process. Increasing copper and thiosulfate concentrations may competitively occupy the active sites on the resin surface, leading to a reduction in the gold adsorption capacity. The XPS and FT-IR analyses indicate that copper and gold on the resin after adsorption mainly exist in the form of Cu<sup>+</sup> and Au<sup>+</sup>, and sulfur mainly exists in the form of SO<sub>4</sub><sup>2−</sup> and S<sub>2</sub>O<sub>3</sub><sup>2−</sup>. This implies that the use of resin for gold recovery from thiosulfate leachate may face critical challenges because there is inevitably a higher content of copper and thiosulfate.https://www.mdpi.com/2075-4701/13/8/1443goldthiosulfatetartrateresinadsorption |
| spellingShingle | Yan Fu Junnan Chen Feng Xie Zhichao Cao Wei Wang Adsorption of Gold from Copper–Tartrate–ThiosulfateSolutions with Ion-Exchange Resins Metals gold thiosulfate tartrate resin adsorption |
| title | Adsorption of Gold from Copper–Tartrate–ThiosulfateSolutions with Ion-Exchange Resins |
| title_full | Adsorption of Gold from Copper–Tartrate–ThiosulfateSolutions with Ion-Exchange Resins |
| title_fullStr | Adsorption of Gold from Copper–Tartrate–ThiosulfateSolutions with Ion-Exchange Resins |
| title_full_unstemmed | Adsorption of Gold from Copper–Tartrate–ThiosulfateSolutions with Ion-Exchange Resins |
| title_short | Adsorption of Gold from Copper–Tartrate–ThiosulfateSolutions with Ion-Exchange Resins |
| title_sort | adsorption of gold from copper tartrate thiosulfatesolutions with ion exchange resins |
| topic | gold thiosulfate tartrate resin adsorption |
| url | https://www.mdpi.com/2075-4701/13/8/1443 |
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