Fundamental Rotating Disk Study of Platinum Recovery from Aqueous Solution by a Reduction/Collection Technique
Fundamental Rotating Disk Study of Platinum Recovery from Aqueous Solution by a Reduction/Collection Technique
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DOI：
10.1021/ie9606855
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发表时间：
1997-05
影响因子：
4.2
通讯作者：
T. Angelidis;K. A. Kydros;S. Sklavounos
中科院分区：
文献类型：
--
作者：
T. Angelidis;K. A. Kydros;S. Sklavounos
研究了以金属铁为还原剂，铅或铜离子为还原捕收剂，从水溶液中回收铂的还原捕收过程。基本动力学方面的过程，如pH值和收集剂的浓度对铂回收率的影响，进行了实验研究。就从盘表面落下的沉淀剂的粒度而言，比较两种收集器。与铜相比，铅离子似乎产生更粗的沉淀物，并增加反应发生的pH区域。最终产物是铂和铂/铅双金属化合物（主要是PbPt）的混合物。
A reduction/collection procedure for the recovery of platinum from aqueous solutions applying metallic iron (in the form of a rotating disk) as reductant and lead or copper ions as reduced platinum collectors was studied. Fundamental kinetic aspects of the process, such as the influence of the pH and of the collector's concentration on platinum recovery yield, were examined experimentally. The two collectors were compared with respect to the particle size of the precipitant falling from the disk surface. Lead ions seem to give a coarser precipitant compared to copper and increase the pH region at which the reaction takes place. The final product was a mixture of platinum and platinum/lead bimetallic compounds (mainly PbPt).