湿式弱磁选从含钛高炉渣中提取金属铁的研究

周国彪; 彭同江; 孙红娟; 鲜海洋

doi:10.7513/j.issn.1004-7638.2013.03.009

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湿式弱磁选从含钛高炉渣中提取金属铁的研究

doi: 10.7513/j.issn.1004-7638.2013.03.009

1. 西南科技大学固体废物处理与资源化教育部重点实验室, 四川绵阳 621010;
2. 西南科技大学分析测试中心, 四川绵阳 621010;
3. 西南科技大学矿物材料及应用研究所, 四川绵阳 621010

详细信息

作者简介:
周国彪(1988-),男,四川会理人,硕士研究生,主要从事含钛高炉渣综合利用研究;彭同江(1958-),男,教授,博士生导师,主要从事矿物纳米材料研究.。

中图分类号: X757,TD924
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- 被引次数: 0
出版历程
- 收稿日期: 2013-01-28
- 网络出版日期: 2023-12-04

Research on Recovery of Iron from Ti-bearing Blast Furnace Slag by Wet Low-intensity Magnetic Separation

1. Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010 Sichuan, China;
2. Analysis & Testing Center, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;
3. Institute of Mineral Materials & Application, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China

摘要

摘要: 基于攀钢高钛型含钛高炉渣综合利用现状，提出"磁选收铁-活化脱铝—酸浸提钛"的技术途径，以期实现含钛高炉渣中Fe、Al、Ti等有价元素的综合回收。采用X射线衍射仪和矿相显微镜研究了含钛高炉渣中矿物相的组成和金属铁在含钛高炉渣中的赋存状态。采用单一弱磁选和阶段磨矿-阶段弱磁选的工艺回收含钛高炉渣中的金属铁。结果表明：高炉渣中的主要矿物相为钙钛矿、透辉石和镁铝尖晶石，金属铁多以球粒状分布于透辉石等矿物颗粒中，含少量磁铁矿。采用阶磨、阶选的工艺在节约磨矿成本的同时可获得铁精矿的品位为63.5%，回收率为64.2%，有效回收了高炉渣中的金属铁，并为后续工艺中活化脱铝和酸浸提钛创造了有利条件。
- 含钛高炉渣 /
- 金属铁 /
- 阶段磨矿—阶段弱磁选 /
- 综合利用
Abstract: Based on research status of comprehensive utilization of titanium rich blast furnace slag(BF slag)in Pangang,the technical approach of "Fe recycling by magnetic separation-dealuminizing by activation-Ti leaching by acidolysis "was proposed to recycle valuable elements including Fe,Al,and Ti in the slag.Mineral phases and iron occurrence in the Ti-bearing BF slag were analyzed by means of XRD and metallographic microscope.The technologies of single low-intensity magnetic separation and staged grinding and low-intensity magnetic separation were adopted respectively for iron recycling.The results show that the main mineral phases of the BF slag are perovskite,diopside and spinel,and metallic iron existing as globularity mostly distributes in the diopside.Except grinding cost saving,the utilization of the staged grinding and low-intensity magnetic separation also boosts an iron concentrate of 63.5% with a recovery rate of total iron at 64.2%,which creates favorable conditions for subsequent dealuminizing and Ti leaching.
- Ti-bearing blast furnace slag /
- metallic iron /
- staged grinding and low-intensity magnetic separation /
- comprehensive utilization