辉锑矿及其次生矿床,常与雌黄、雄黄、毒砂等含砷矿物共生,在选矿工序中不能完全除去。精矿如采用火法冶炼,在焙烧脱硫过程中,砷绝大部分挥发混入锑氧。随后在反射炉还原时生成锑砷合金。现采用加纯碱鼓风精炼的方法脱砷,同时去硫去铁,以获得合格的精锑产品。锑在精炼过程中排出的碱渣,其主要组成是:亚锑酸钠、砷酸钠、碳酸钠,并含有少量的硫酸钠、铁的化合物、带出来的金属锑,微量的硫代盐、亚硒酸钠,以及一些机械混 Stibnite and its secondary deposits, often with the female yellow, realgar, arsenopyrite and other arsenic symbiotic, can not be completely removed in the beneficiation process. Concentrates, such as the use of pyrometallurgical smelting, desulfurization roasting process, the vast majority of volatile arsenic mixed with antimony oxide. The antimony arsenide alloy is then formed on the reduction furnace. Is the use of soda ash blast refining method of removing arsenic, while desulfurization to iron, in order to obtain qualified refined antimony products. Antimony in the refining process discharged alkali residue, its main components are: sodium antimonite, sodium arsenate, sodium carbonate, and contains a small amount of sodium sulfate, iron compounds, brought out of the metal antimony, traces of thiosalt, Sodium selenite, as well as some mechanical mixing