铜渣高温快速还原焙烧-磁选回收铁的研究

发布时间：2018-06-08 21:34

  本文选题：铜渣 + 铁　； 参考：《矿冶工程》2017年01期

【摘要】：采用高温快速还原焙烧-磁选工艺从铜冶炼渣回收铁,系统研究了碱度(Ca O/Si O2)、还原温度、还原时间、还原剂用量等因素对磁选金属铁粉质量的影响。结果表明,铜渣中的铁主要以铁橄榄石形式存在,其次为磁铁矿;在碱度(Ca O/Si O2)0.6、焦粉配比12%、还原温度1 300℃、还原时间30 min、铜渣粒度-0.074 mm粒级占95%、磁场强度0.08 T的条件下,可得到铁品位91.10%、金属化率94.27%的金属铁粉。
[Abstract]:Iron was recovered from copper smelting slag by high temperature rapid reduction roasting-magnetic separation process. The effects of basicity of Cao / Sio _ 2, reduction temperature, reduction time and amount of reducing agent on the quality of magnetic separation metal iron powder were systematically studied. The results show that iron in copper slag mainly exists in the form of iron olivine, followed by magnetite, under the conditions of basicity of Cao / Sio _ 2o _ (0.6), coke powder ratio of 12, reduction temperature of 1 300 鈩，

本文编号：1997226