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| Thermodynamic Analysis of Co-Cu-Zn-Pb-Ni-Cl-H2O System |
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Received:January 05, 2011
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| DOI：DOI：10.3969/j.issn.1007-7545.2011.09.002 |
| KeyWord:Cobalt electrolyte; Co-Cu-Ni-Pb-Zn-Cl-H2O system; Thermodynamics analysis |
| Author | Institution |
| GUO Wan-gen |
中铁资源集团有限公司 |
| SHI Yu-chen |
中铁资源集团有限公司 |
| WANG Han-yuan |
中铁资源集团有限公司 |
| ZHANG Ji-gui |
中铁资源集团有限公司 |
| HUANG Yun-cheng |
中铁资源集团有限公司 |
| XU Xin-qi |
中铁资源集团有限公司 |
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| Abstract: |
| c-lg c[Cl]T and c-pH diagrams for complex ions(Co2+、Cu2+、Zn2+、Pb2+、Ni2+) at 298.15 K were drawn respectively based on the thermodynamic equilibrium principle of complex chemistry. The results show that in cobalt electrolysis solution, the occurrence states of cobalt, copper and nickel are free ions and complex cations at pH 2.5, while the lead and zinc exist as complex anions which can be removed by anion exchange resin. In addition, the amount of complex anions of lead and zinc are increased with the improving of Cl- concentration, which is beneficial to the removing process of lead and zinc. |
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