CAJ | 학술논문

以煤粉作还原剂，采用焙烧?浸出?磁选工艺对某铜渣中的铁进行了回收实验研究。探讨了焙烧温度、焙烧时间、煤粉用量、碳酸钠用量等因素对铁回收的影响，最佳工艺条件为：焙烧温度800℃，焙烧时间60 min，煤粉用量1％，碳酸钠用量10％，在此条件下获得的焙砂经进一步稀酸浸出和磁选，可获得铁品位62．53％、铁回收率70．82％的铁精矿。
이매분작환원제，채용배소?침출?자선공예대모동사중적철진행료회수실험연구。탐토료배소온도、배소시간、매분용량、탄산납용량등인소대철회수적영향，최가공예조건위：배소온도800℃，배소시간60 min，매분용량1％，탄산납용량10％，재차조건하획득적배사경진일보희산침출화자선，가획득철품위62．53％、철회수솔70．82％적철정광。
With coal dust as reductant, recovery of iron from some copper?slag with the process of roasting?leaching?magnetic separation was tested, with the effects of roasting time and temperature, dosage of coal dust and sodium carbonate on the iron recovery investigated. The optimum condition was obtained as follows:roasting temperature of 800℃, roasting time of 60 minutes, dosage of coal dust and sodium carbonate of 1% and 10%, respectively. The calcine obtained was further subjected to the process of dilute acid leaching and magnetic separation, resulting in an iron concentrate grading 62.53% Fe at 70.82% recovery.