收稿日期: 2015-03-03
网络出版日期: 2017-04-30
Influence of roasting condition on purification of iron oxide by magnetic separation
Received date: 2015-03-03
Online published: 2017-04-30
孙孝武, 王兴庆, 汤小泉, 舒淑奇 . 焙烧工艺对磁选提纯氧化铁的影响[J]. 上海大学学报(自然科学版), 2017 , 23(2) : 192 -200 . DOI: 10.3969/j.issn.1007-2861.2015.04.013
Scale on the surface of iron in incinerated municipal solid waste scrap as raw materials was purified by roast magnetic beneficiation to produce iron oxide up to industry standard. The effects of reduction roasting, magnetic field strength, particle size and other test conditions on magnetic beneficiation were researched. The results show that magnetite powder with TFe content of 67.61% and 85.17% iron recovery can be obtained by secondary magnetic separation under the conditions of reduction temperature of 750 ℃, reduction time of 60 min, charcoal ratio of 7% and magnetic field strength of 0.10 and 0.08 T, respectively.
Key words： magnetic separation; waste iron recovery; reduction roasting
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