The elution of platinum and palladium cyanide from strong base anion exchange resins
MetadataShow full item record
© 2017 Elsevier B.V.The paper discusses the elution of platinum cyanide and palladium cyanide from strong base anion exchange resins, namely Amberlite PWA5 and Minix, with the use of acidic thiourea, potassium thiocyanate and zinc cyanide. It is shown that thiocyanate ions and zinc cyanide were effective eluants for strong base resins. Acidic thiourea, however, was found to be ineffective in eluting platinum cyanide from strong base resins, but eluted palladium cyanide. The concentration of the eluting agents was found to affect the elution to a noticeable degree, with no significant effect imparted by the elution temperature and flow rate. Overall, it can be concluded that platinum cyanide and palladium cyanide can be effectively eluted from strong base anion exchange resins, with the use of potassium thiocyanate and zinc cyanide. However, split elution alternatives, such as acid washing, should be investigated to separate platinum cyanide and palladium cyanide from the base metal cyanides loaded on the resins.
Showing items related by title, author, creator and subject.
The Recovery of Platinum, Palladium, and Gold from a Cyanide Heap Solution, with use of Ion Exchange ResinsSchoeman, E.; Bradshaw, S.; Akdogan, G.; Eksteen, Jacques (2013)Ion exchange resins were investigated for the effective recovery of platinum, palladium, and gold from a pregnant cyanide heap leach solution. Screening results indicated that strong-base anion exchange resins proved to ...
The extraction of platinum and palladium from a synthetic cyanide heap leach solution with strong base anion exchange resinsSchoeman, E.; Bradshaw, S.; Akdogan, G.; Snyders, C.; Eksteen, Jacques (2017)© 2017 Elsevier B.V.The use of ion exchange resins for the extraction of platinum and palladium from a synthetic cyanide leach solution is described in this paper. An increase in the concentrations of both platinum and ...
The Adsorption and Elution of Platinum Group Metals (Pt, Pd, and Au) from Cyanide Leach Solutions using Activated CarbonSnyders, C.; Mpinga, C.; Bradshaw, S.; Akdogan, G.; Eksteen, Jacques (2013)This paper investigates the recovery of platinum group metals (PGMs) from a dilute cyanide leach solution containing base metals, in a manner similar to that used for gold extraction in a typical CIP process, and focuses ...