Menetelmä nikkelin tehdasmittakaavaista jatkuvaa erottamista varten

Nickel can be separated from metals forming chlorocomplex anions, such as cobalt, by dissolving a nickel concentrate in hydrochloric acid, boiling down the nickel chloride solution to a nickel content of not more than 240 grams per liter, increasing the concentration of hydrochloric acid to 7 to 9 moles/liter by adding concentrated sulfuric acid to the solution in an amount equivalent to the nickel present, thereby forming a nickel sulfate salt, adsorbing the metallic contaminations on an anion exchange resin, and isolating hydrated nickel sulfate and hydrochloric acid from the effluent from the resin.