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| 加压碱溶综合回收失效重整催化剂中的铂和铝 |
| Study on comprehensive recovery of platinum and aluminum in spent reforming catalysts by pressurized alkali dissolution |
| Received:November 09, 2020 |
| DOI： |
| 中文关键词: 冶金技术 失效重整催化剂 加压碱溶 综合回收 铂 铝酸钠 |
| 英文关键词: metallurgical technology spent reforming catalyst pressurized alkali dissolution comprehensive recovery platinum sodium aluminate |
| 基金项目:云南省科技人才和平台计划项目(2018HB112)，云南省重大科技专项(2018ZE001)，固废资源化专项(2019YFC1907505) |
| Author Name | Affiliation | E-mail | | WANG Huan | Sino-Platinum Metals Resources Yimen Co. Ltd., Yuxi 651100, Yunnan, China | 75512702@qq.com | | WU Xi-long | Sino-Platinum Metals Resources Yimen Co. Ltd., Yuxi 651100, Yunnan, China | | | XIONG Qing-feng | Sino-Platinum Metals Resources Yimen Co. Ltd., Yuxi 651100, Yunnan, China | | | TAN Wen-jin | Sino-Platinum Metals Resources Yimen Co. Ltd., Yuxi 651100, Yunnan, China | | | YANG Quan | Sino-Platinum Metals Resources Yimen Co. Ltd., Yuxi 651100, Yunnan, China | | | LI Yong | Sino-Platinum Metals Resources Yimen Co. Ltd., Yuxi 651100, Yunnan, China | 8299262@qq.com |
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| 中文摘要: |
| 采用加压碱溶法从失效重整催化剂中综合回收铂和铝的实验研究。结果表明，最适宜的工艺条件为:碱/料比1.2:1，甲酸钠添加量为催化剂量的2%，反应温度为180℃，反应时间2 h。在最佳条件下，载体的溶解率达到98%以上，铂不分散，不溶渣中铂的品位达到20%以上，每吨废催化剂产生浸出液约5 m3，且浸出液直接蒸发得到的结晶物符合工业铝酸钠产品标准，可实现废催化剂中铂和铝的综合利用。 |
| 英文摘要: |
| The comprehensive recovery of platinum and aluminum in spent reforming catalysts by a pressurized alkaline dissolution was studied. The results showed that the optimum conditions were as follows: 1.2:1 of alkali to material ratio, 2% of spent catalysts amount as sodium formate amount, 180℃ of reaction temperature, and 2 h of reaction time. Under the optimal conditions, the dissolution rate of catalyst carrier was above 98%, while platinum was not dispersed, and the grade of platinum in the insoluble residue was more than 20%.The leaching solution was about 5 cubic meters per ton of spent catalyst, and the crystal obtained by direct evaporation of leaching solution meets the product standard of industrial sodium aluminate, and the comprehensive utilization of platinum and aluminum in spent catalysts was realized. |
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