1. 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室，湖北 武汉 4300812. 湖北省冶金二次资源工程技术研究中心，湖北 武汉 4300813. 武汉科技大学省部共建耐火材料与冶金国家重点实验室，湖北 武汉 430081
收稿日期:2018-12-04修回日期:2019-02-22出版日期:2019-08-22发布日期:2019-08-15通讯作者:李杨基金资助:国家自然科学基金项目;省部共建耐火材料与冶金国家重点实验室青年基金;湖北省自然科学基金Dissolution behavior of main minerals in hydrothermal leaching process of LF refining spent slag
Huanyu HE1,2,3, Weiwei HOU1,2,3, Hongling LIU1,2,3, Yang LI1,2,3*1. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China 2. Hubei Provincial Engineering Technology Research Center of Metallurgical Secondary Resources, Wuhan, Hubei 430081, China3. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
Received:2018-12-04Revised:2019-02-22Online:2019-08-22Published:2019-08-15摘要/Abstract
摘要： 通过水热浸出实验分别研究了精炼废渣及合成的废渣中2种主要单一矿相12CaO?7Al2O3和2CaO?SiO2的溶解行为，并将二者进行对比分析，探究了LF精炼废渣在水热浸出过程中的溶解行为。结果表明，废渣浸出过程中浸出液的pH?12，且随浸出时间增加，电导率和Ca浓度增加，Al浓度急剧下降，Si浓度低于0.1 mg/L且保持不变；12CaO?7Al2O3浸出过程中，随时间增加，浸出液pH值稳定在约11.3，浸出液中Al浓度增加，Ca浓度略微下降。2CaO?SiO2浸出液中主要为Ca2+，Si浓度低于0.6 mg/L；废渣与单一矿相浸出过程的pH值及Al, Si浓度较接近，可以通过单一矿相的溶解行为研究精炼废渣在水热浸出过程中的溶解行为，但废渣浸出液的Al和Si浓度均低于单一矿相，表明废渣中CaO等其它组分溶解抑制了12CaO?7Al2O3和2CaO?SiO2溶解。
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何环宇 侯巍巍 刘虹灵 李杨. LF精炼废渣水热浸出过程中主要矿相的溶解行为[J]. 过程工程学报, 2019, 19(4): 735-741.
Huanyu HE Weiwei HOU Hongling LIU Yang LI. Dissolution behavior of main minerals in hydrothermal leaching process of LF refining spent slag[J]. Chin. J. Process Eng., 2019, 19(4): 735-741.
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