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| 3D打印大流量微反应器在萃取分离铂钯铑中的小型化应用 |
| Miniaturized Application of 3D Printing Large Flow Microreactor in Extraction and Separation of Platinum, Palladium and Rhodium |
| 投稿时间：2020-07-08 |
| DOI： |
| 中文关键词: 微反应器 贵金属 3D打印技术 萃取效率 分离系数 |
| 英文关键词: microreactor precious metals 3D printing technology extraction efficiency separation factor |
| 基金项目: |
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| 摘要点击次数: 1125 |
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| 中文摘要: |
| 进行了3D打印多通道微用于TBP萃取分离盐酸体系中的铂钯铑离子的研究。结果表明，在处理量为11.5 L/h，油/水相比为1:1，流速为192.5 mL/min的条件下铂萃取率为84.26%，钯萃取率为96%，分离系数βPd/Rh、βPt/Rh分别为753.5、132.35；使用结构优化后的反应器对铂和钯萃取率分别提高2%和1%。3D反应器利用锯齿型微通道具有微漩涡的微效应，通过叠加锯齿型微通道数量从而实现处理量的放大。萃取效果优于常规工业单级萃取过程，尤其是在提高分离系数、缩短萃取时间效果尤佳，且单台微萃取系统的处理量就已经接近了工业生产级。 |
| 英文摘要: |
| The 3D printed multi-channel microfluidic reactor was applied to the experiment of TBP extraction and separation of platinum, palladium and rhodium ions in hydrochloric acid system. The results showed that the extraction rate of platinum and palladium reached 84.26%, 96% respectively, and the separation coefficient βPd/Rh under the conditions of phase ratio is 1:1, flow rate of 192.5 mL/min (treatment volume of 11.5 L/h) βPt/Rh can be 753.5, 132.35; the structure optimized extraction rate of platinum and palladium in the reactor is increased by 2% and 1% respectively. The reactor utilizes zigzag-type micro-channels to have a recirculating micro-effect, and achieves an amplification effect by superimposing the number of zigzag-type micro-channels. It is particularly good in improving the separation coefficient and shortening the extraction time, and the total processing capacity has reached the industrial production level. |
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