LIU Qiming1， LI Tao2
(1. Shandong Province Construction and Development Research Institute， Jinan 250001， China； 2. School of Materials Science and Engineering， Southwest University of Science and Technology， Mianyang 621010， China)
Abstract: The manganese slag, as an industrial solid waste, was not effectively utilized and harmed the environment. In this paper,the manganese slag from an electrolytic manganese plant in Aba, Sichuan Province was used as raw material. The manganese extraction from the mentioned slag was studied by secondary acid leaching method. Manganese content in solid slag and filtrate were detected by XRF and AAS techniques, and the effects of grinding and acid leaching conditions on the manganese content in secondary acid leaching manganese slag and its filtrate were discussed. The research showes that the manganese extraction is effectively promoted after grinding manganese slag 7, 15 h. And compared with the unground slag, their extraction efficiencies are increased by 41.3% and 77.9%, respectively.
Keywords:industrial solid waste； manganese slag； grinding； acid leaching； manganese extraction
中图分类号：O69；TQ13
文献标志码：A
收稿日期： 2018-11-22，修回日期:2018-12-21，在线出版时间：2019-01-10 10:52。
第一作者简介：刘启明(1977—)，男，硕士，高级工程师，研究方向为应用化学、建筑材料、废弃物资源化综合利用。E-mail：changgeng_liu@163.com。
文章编号：1008-5548(2019)03-0037-05
DOI:10.13732/j.issn.1008-5548.2019.03.007
