Electrowinning of sulfur-containing nickel

Claim 1

A process for producing sulfur-containing nickel comprising establishing an aqueous electrolyte which contains in solution nickel ions, chloride ions and a sulfur-bearing compound selected from the group consisting of sulfur dioxide, thiourea, toluene sulfonamide as well as sulfites, bisulfites, thiosulfates and tetrathionates of alkali and alkaline earth metals, electrodepositing nickel from said electrolyte in a cell having at least one electrode assembly, which assembly comprises an anode substantially insoluble in said electrolyte, a cathode, an anolyte diaphragm-means for isolating said anode and a volume of said electrolyte adjacent thereto from the remainder of said electrolyte within said cell and a catholyte diaphragm-means for isolating said cathode and a volume of said electrolyte adjacent thereto from the remainder of said electrolyte within said cell, and maintaining a flow of said electrolyte through said cell during electrodeposition by introducing fresh electrolyte to the interior only of said catholyte diaphragm-means and withdrawing spent electrolyte from the exterior only of said catholyte diaphragm-means.