Proceedings of the Metallurgical Society of the Canadian Institute of Mining and Metallurgy 1987 Help me understand this report
Ion Exchange Recovery of Gold and Silver From Cyanide Solutions
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1991
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“…The amine groups become deactivated and stop functioning as ion exchangers above a certain pH known as pKa. According to Riveros and Cooper (1987), "all commercial weak-base resins have a pKa lower than the normal pH of lO-II of a cyanide (mill) leach liquor." Hence, the pH of mill solutions has to be adjusted to lower than pKa in order to maintain the integrity of the weak-base resin.…”
Section: Ion-exchange Resinsmentioning
confidence: 99%
“…The amine groups become deactivated and stop functioning as ion exchangers above a certain pH known as pKa. According to Riveros and Cooper (1987), "all commercial weak-base resins have a pKa lower than the normal pH of lO-II of a cyanide (mill) leach liquor." Hence, the pH of mill solutions has to be adjusted to lower than pKa in order to maintain the integrity of the weak-base resin.…”
Section: Ion-exchange Resinsmentioning
confidence: 99%
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