摘要
采用一步氯化挥发法处理氰化提金后的尾渣，考察了工艺配方、焙烧温度、焙烧时间及气氛等因素对脱铜、脱砷效果的影响．结果表明：采用一步氯化挥发法脱除铜砷的效果良好，适当配比制球，在焙烧温度1160℃的条件下，尾渣中的铜砷脱除率达到90％以上，并可通过冷凝收尘回收铅、锌、银等有价金属．烧渣中铁的品位达到64％以上，可作为优良的炼铁原料．
Comprehensive treatment of the cyanidation slags was carried out using a one--step chlorinating volatilization method. The effect of technical parameters,such as the technological formula,the temperature and time of calcination and surrounding gas on the removal of copper and arsenic was examined. The results showed that the one-step chlorinating volatilization technology is suitable for eliminating Cu and As. When the calcination temperature reached 1160℃ and a pellets was made at a suitable scale,the eliminating ratio of Cu and As was over 90%, meanwhile several valuable metals such as,Pb,Ag and Zn can be restored. Also the grade of Fe amounted to over 64% in the cinder, which can he used as a fine iron-making raw material.
出处
《材料研究与应用》
CAS
2010年第2期156-160,共5页
Materials Research and Application
关键词
氯化冶金
脱铜
脱砷
氰化尾渣
chlorinating metallurgy
copper removal
arsenic removal
cyanidation slags
