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| 从失效钌锌催化剂中回收钌的工艺研究 |
| Study on the process of recovering ruthenium from spent ruthenium-zinc catalyst |
| Received:November 15, 2022 |
| DOI： |
| 中文关键词: 冶金技术 钌锌催化剂 钌 回收 |
| 英文关键词: metallurgical technology ruthenium-zinc catalyst ruthenium recycling |
| 基金项目:云南省科技人才和平台计划项目(2018HB112)；国家重点研发计划(2019YFC1907505)。 |
| Author Name | Affiliation | | YANG Shenhong | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | CHEN Wenjun | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | GAO Yiyuan | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | LI Qinghua | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | PENG Chunsheng | Yongxing Sino-Platinum Metals Resources Co.Ltd., Chenzhou 423399, Hunan, China | | YANG Quan | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China |
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| 中文摘要: |
| 钌锌催化剂是液相法苯选择加氢制环己烯的高效催化剂，用量大、贵金属含量高，研究失效钌锌催化剂中钌的回收具有重要意义。本研究提出了一种从失效钌锌催化剂中回收钌的方法，并通过实验优化了工艺条件。最佳工艺条件为，1) 焙烧:在650 ℃下焙烧4 h，球磨至80目；2) 碱熔:失效催化剂:氢氧化钠:高锰酸钾(质量比)为1:2:0.5，在650 ℃下熔融5 h；3) 蒸馏:于95 ℃通氯气蒸馏钌2 h。在最优条件下，钌直收率97.66%，产出的三氯化钌质量符合标准要求。 |
| 英文摘要: |
| Ruthenium-zinc catalyst was very efficient for the selective hydrogenation of benzene to cyclohexene in a liquid phase. Owing to a large amount of this kind of catalyst and high contents of noble metals in it, it was of great significance to study the recovery of ruthenium from the spent catalyst. In this study, a recovery method was proposed, and the related process conditions optimized through experiments. were as follows: 1) Roasting at 650 ℃ for 4 h, ball milling to 80 mesh, 2) alkali melting at 650 ℃ for 5 h with sodium hydroxide and potassium permanganate (1:2:0.5 mass ratio, 3) distilling ruthenium 2 h at 95 ℃ using chlorine gas. Under these optimal conditions, the direct yield of ruthenium was 97.66%, and the quality of ruthenium trichloride conformed to the standard. |
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