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| Purification Technology of Platinum by Reduction Dissolution |
| Received:February 23, 2022 Revised:March 10, 2022 |
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| DOI：doi：10.3969/j.issn.1007-7545.2022.07.008 |
| KeyWord:ammonium chloroplatinate；reduction dissolution；acidity；platinum powder |
| Author | Institution |
| PAN Cong-ming |
金川集团铜业有限公司 |
| YANG Li-hong |
金川集团铜业有限公司 |
| WEN Yi-jun |
金昌市污染源监控中心 |
| GAO Xiang-qian |
金川集团铜业有限公司 |
| YANG Wan-hu |
金川集团铜业有限公司 |
| JI Ting |
金川集团铜业有限公司 |
| HE Ya-dan |
金川集团铜业有限公司 |
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| Abstract: |
| Ammonium chloroplatinate was purified by hydrazine hydrate reduction dissolving method. The optimum reaction conditions were determined by exploring effects of reaction temperature, acidity, and dosage of reducing agent on dissolution process. The charge polarity on precipitated surface of ammonium chloroplatinate was changed by adding anionic surfactant to reducing agent to achieve further purification of ammonium chloroplatinate. The purity of platinum powder prepared by calcination of purified ammonium chloroplatinate is 99.95% above, and the composition and morphology of the product are analyzed and characterized by XRD and SEM. |
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