| 摘要 |
<p>In an electroplating process the ion concentration is regulated. The electrolyte is enriched by Donnan-dialysis in conjunction with a cation-exchange membrane or a micro-porous membrane. A number of cations are removed from the separating metal within the electrolyte, simultaneously maintaining charge equalization and electrolyte electro-neutrality. The separating metal is copper, nickel, cobalt, silver gold, platinum or palladium. The depleting cations are e.g. hydrogen, lithium, sodium, potassium, magnesium, strontium, barium or ammonim ions. An aqueous or organic solution is present on the other side of the membrane. Also claimed is a commensurate assembly with an electrolyte chamber (1), an exchange liquid chamber (2), an electrolyte inlet (5), an exchange liquid inlet (6), an electrolyte outlet (7) and an exchange liquid outlet (8). The electrolyte chamber (1) and exchange liquid chamber (2) are separated by a cation-exchange membrane or a micro-porous membrane (3).</p> |
