Electrolytic Refining of Antimony Bullion

Publisher Website
Google Scholar
Abstract
Antimony bullion of several compositons was electrolytically refined in electrolyte composed of antimony trifluoride and sulfuric acid at current densities up to 20 amp./ft.2 (2.2 amp./dm2.). The effects of electrolyte circulation and of variation in the antimony content of the electrolyte were studied. The cathode‐current efficiency was about 99%, and the deposits stripped well. Most of the copper, arsenic, and bismuth in the bullion went into the refined metal, and when the bullion contained sulfur and arsenic more than 99% of the gold and silver was recovered in the slimes. When the electrolyte contained insufficient antimony, the deposits were rough and loose. Copper and silver can be kept out of the refined metal by circulating the electrolyte through a cementation tank containing finely divided antimony.

This publication has 0 references indexed in Scilit: