首页>
外国专利>
Process for hydrometallurgic and electrochemical treatment of sulfur antimony ores with production of electrolytic antimony and elemental sulfur
Process for hydrometallurgic and electrochemical treatment of sulfur antimony ores with production of electrolytic antimony and elemental sulfur
展开▼
机译:电解锑和元素硫的生产用于湿法冶金和电化学处理硫锑矿的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A hydrometallurgic and electrochemical process for processing sulfur antimony ores and residues is disclosed, the end products from which are electrolytic antimony and elemental sulfur. The concentrate of sulfur antimony ore, leached with a solution of caustic alkali according to the known techniques dissolves, as sulfur salts as much Sb as possible, whilst the other heavy and precious metals which accompany the antimony bearing ore remain unchanged in the residue. From the solution of antimony sulfur salts pure Sb.sub.2 S.sub.3 is precipitated by acidification and this sulfide, separated from the solution by filtration, is leached with a ferric fluoborate based electrolyte which oxidizes sulfide into elemental sulfur and dissolves antimony as Sb.sup. 3+ fluoborate. The resulting mixture is filtered once more in order to separate elemental sulfur and the solution of Sb fluoborate is submitted to electrolysis in a diaphragm cell with electrolytic Sb being obtained at the cathodes, and regenerated ferric fluoborate being recycled to the step of Sb.sub.2 S.sub.3 leaching in the anodic compartment.
展开▼