CAJ | 학술논문

研究从赞比亚谦比希铜冶炼厂转炉渣中回收钴的还原熔炼过程.实验考察还原剂用量、熔炼温度、保温时间及渣型改善剂CaO和TiO2的添加对还原熔炼金属回收率的影响.采用X射线衍射、扫描电子显微镜及能谱分析对所得贫化渣和含钴合金进行表征.结果表明,在优化条件下,转炉渣中钴、铜、铁的回收率分别为94.02％,95.76％和小于18％；贫化渣的主要物相组成为铁橄榄石和铁尖晶石,含钴合金中主要含有金属铜、含钴铜的铁合金和少量的硫化物.
연구종찬비아겸비희동야련엄전로사중회수고적환원용련과정.실험고찰환원제용량、용련온도、보온시간급사형개선제CaO화TiO2적첨가대환원용련금속회수솔적영향.채용X사선연사、소묘전자현미경급능보분석대소득빈화사화함고합금진행표정.결과표명,재우화조건하,전로사중고、동、철적회수솔분별위94.02％,95.76％화소우18％；빈화사적주요물상조성위철감람석화철첨정석,함고합금중주요함유금속동、함고동적철합금화소량적류화물.
The reduction smelting process for cobalt recovery from converter slag of the Chambishi Copper Smelter in Zambia was studied.The effects of reducing agent dosage,smelting temperature and time and the addition of slag modifiers(CaO and TiO2)were investigated.In addition,the depleted slag and cobalt-beating alloy were characterized by X-ray diffraction,scanning electron microscopy and energy dispersive spectroscopy.Under the determined conditions,94.02％ Co,95.76％ Cu and less than 18％ Fe in the converter slag were recovered.It was found that the main phases of depleted slag were fayalite and hercynite; and the cobalt-bearing alloy mainly contained metallic copper,Fe-Co-Cu alloys and a small amount of sulfide.