首页>
外国专利>
PROCESS FOR TREATING SULPHIDE CONCENTRATES CONTAINING CHALCOPYRITE AND PYRITE
PROCESS FOR TREATING SULPHIDE CONCENTRATES CONTAINING CHALCOPYRITE AND PYRITE
展开▼
机译:处理含硫铁矿和硫铁矿的硫化物精矿的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A process for thermal activation of chalcopyrite-pyrite ore concentrates for activation of iron values in both chalcopyrite and pyrite constituents whereby said iron values can be selectively removed in a subsequent acid leach. Controlled oxidizing conditions are maintained in an oxidizing heating zone for removal of up to about 90% of total sulfur to be removed for conversion of pyrite and chalcopyrite to their acid-leachable forms, measured by a preferable oxidation of 10 to 15% of iron in the concentrate to ferromagnetic oxides, whereby remaining total sulfur to be removed is removed in a reducing zone with the assistance of a low H2S/(H2+H2S) ratio by scavenging of H2S by said oxides.
展开▼
机译:一种用于黄铜矿-黄铁矿矿石的热活化的方法,其浓缩物用于活化黄铜矿和黄铁矿成分中的铁值,从而可以在随后的酸浸中选择性地除去所述铁值。在氧化加热区中保持受控的氧化条件,以去除最多约90%的总硫,以将黄铁矿和黄铜矿转化为酸可浸出的形式脱硫,方法是通过在铁中优选氧化10%至15%的铁来测量将其浓缩成铁磁性氧化物,从而在低H 2 S /(H 2 + H 2 S)比的帮助下,通过所述氧化物清除H 2 S,在还原区中除去剩余的要除去的总硫。
展开▼