| 摘要 |
The present invention provides a method for removing sodium from a hydrometallurgical process stream comprising ammonium chloride, nickel chloride, copper chloride, cobalt chloride, and/or magnesium chloride,comprising the steps of:(a) withdrawing a bleed stream of hydrometallurgical process liquors and/or slurries from the hydrometallurgical process steam; (b) evaporating water from the bleed stream to obtain a saturated sodium containing solution; (c) crystallizing a part of the sodium chloride comprised in the saturated sodium containing solution from the said solution to obtain a sodium depleted solution; and (d) returning the sodium depleted solution to the hydrometallurgical process stream. |
