engleski

Separation of Copper, Nickel, Tin and Lead by Ion Exchange from Plating Rinsewater

Because large amounts of water are used in many surface finishing processes, it is necessary to reclaim the water by removing metalic ions that contaminate it. Statistical methods were applied to ion exchange tehniques to determine the distribution coefficients of cooper, nickel, tin and lead ions in various concentrations of HCl. The calculated distribution coefficients point to the dependency of the ion exchanger, s selectivity and the complexed metalic ion, the share of the ion type bound, as well as ligand concentration (Cl-) ions in the solution. In-plant experiments have determined breakthrough (resin) capacities for all the indicated metallic ions and thir mixtures.

ion exchange; copper separation

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