Procedure for purification of ionic nickel solutions. (Machine-translation by Google Translate, not legally binding)

摘要

Purification process, nickel ion solutions, characterized in that a nickel acid solution in which there are impurities such as zinc, copper and/or steel is added a dialkildithio-nickel carbamate selected from the group of nickel dimethyldithiocarbamate, diethyl - nickel dithiocarbamate, and nickel dibutyldithiocarbamate, in sufficient quantities to precipitate metal impurities; the solution being recirculated, at least periodically, through a filtration chamber where the impurities that have precipitated from the solution will be retained. (Machine-translation by Google Translate, not legally binding)