摘要
针对云南锡业公司的尾矿中铁与锡的嵌布关系复杂的特点,研究了氯化-还原焙烧法回收尾矿中的铁和锡,确定了最佳工艺条件.试验结果表明,在焙烧温度为1200℃,焙烧时间为60 min,还原剂、氯化剂、催化剂用量的质量分数分别为14%,6%,5%的条件下,可获得品位57%的铁精矿和品位20%的锡精粉.
Due to disseminated complex characteristics of the iron and tin in the tailings of the Yunnan Tin Corpo- ration, the experiments about recoverying iron and tin using the chloridizing-reducing calcination of tailings were carried out and the optimum conditions were determined. The results show that a grade of 57% iron ore concentrate and a grade of 20% the tin powder were obtained when the reducing agent, chlorinating agent, the amount of catalyst mass fraction were 14%, 6%, 5% respectively under the calcination temperature at 1200 ℃ and the roasting time for 60min.
出处
《材料研究与应用》
CAS
2012年第2期142-145,共4页
Materials Research and Application
关键词
云锡尾矿
烟化
氯化-还原焙烧
tin tailings of Yunnan Tin Corporation
volatilizing roast
chloridizing-reducing calcination
