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The separation behavior of platinum and palladium from chloride solution by solvent extraction using Alamine 300 as an extractant has been studied. The effect of different parameters such as HCl concentration in feed solution, NaCl concentration, extractant concentration, platinum and palladium concentrations in the feed solution and stripping behavior using different stripping reagent such as sodium thiocyanate and thiourea have been studied. Using saturated solution of sodium chloride at pH 1.5, platinum was extracted as major selective component along with minor amount of palladium co-extraction. By adding saturated solution of NaCl in aqueous phase depression of palladium extraction could be achieved. In an another study in absence of NaCl using 0.5 M HCl the extraction behavior of both the metals were studied. Selective striping of platinum using sodium thiocyanate and palladium using sodium thiosulfate were achieved. The pure platinum of 99.9% purity can be obtained even very dilute solution by this process.
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The separation behavior of platinum and palladium from chloride solution by solvent extraction using Alamine 300 as an extractant has been studied. The effect of different parameters such as HCl concentration in feed solution, NaCl concentration, extractant concentration, platinum and palladium concentrations in the feed solution and stripping behavior using different stripping reagent such as sodium thiocyanate and thiourea have been studied. Using saturated solution of sodium chloride at pH 1.5, platinum was extracted as major selective component along with minor amount of palladium co-extraction. By adding saturated solution of NaCl in aqueous phase depression of palladium extraction could be achieved. In an another study in absence of NaCl using 0.5 M HCl the extraction behavior of both the metals were studied. Selective striping of platinum using sodium thiocyanate and palladium using sodium thiosulfate were achieved. The pure platinum of 99.9% purity can be obtained even very dilute solution by this process.
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This page is a summary of: Separation of platinum and palladium from chloride solution by solvent extraction using Alamine 300, Hydrometallurgy, July 2010, Elsevier,
DOI: 10.1016/j.hydromet.2010.03.013.
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