Simultaneous Ion Exchange Recovery and Subsequent Separation of Platinum(II, IV), Rhodium(III), and Nickel(II) from Chloride and Sulfate-Chloride Solutions

作者：Kononova O N^*; Melnikov A M; Demitrichenko D S

来源：Solvent Extraction and Ion Exchange, 2013, 31(3): 306-319.

DOI：10.1080/07366299.2012.757133

• Platinum
• rhodium
• nickel
• sorption
• anion exchangers
• separation

The problem of simultaneous ion-exchange recovery of platinum(II,IV), rhodium(III), and Ni(II) and their subsequent separation by means of elution was investigated with macroporous anion exchangers Purolite S985 (complex-forming resin) and Purolite A500 (strong basic resin). It was shown that sorption properties of the former sorbent compare favorably with the latter sorbent during recovery from chloride and sulfate-chloride solutions, freshly prepared or stored over three months. The composition of solutions, concentrations, acidity, and storage time were close to industrial solutions obtained at utilization of spent catalysts. A technological scheme for the separation of recovered noble metals and nickel on anion exchanger Purolite S985 by means of elution with 2 M NH4 SCN and 2 M HCl was proposed.

• 出版日期2013-5-1