菱镁矿除钙提纯技术及镁钙基耐火材料开发应用的研究进展  

Research progress on purification technology of calcium removal from magnesite and development and application of magnesia-calcium-based refractories

作　　者：吴晟 侯庆冬 罗旭东 马北越 王鹏 满奕然 WU Sheng;HOU Qingdong;LUO Xudong;MA Beiyue;WANG Peng;MAN Yiran(School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,Liaoning,China;Liaoning Institute of Science and Technology,Benxi 117000,Liaoning,China;School of Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China;Anshan Hefeng Refractory Material Co.,Ltd.,Anshan 114225,Liaoning,China;R&D Center,HBIS Tangsteel,Tangshan 063000,Hebei,China)

机构地区：[1]辽宁科技大学材料与冶金学院,辽宁鞍山114051 [2]辽宁科技学院,辽宁本溪117000 [3]东北大学冶金学院,辽宁沈阳110819 [4]鞍山市和丰耐火材料有限公司,辽宁鞍山114225 [5]河钢唐钢技术中心,河北唐山063000

出　　处：《钢铁研究学报》2024年第10期1290-1297,共8页Journal of Iron and Steel Research

基　　金：国家自然科学基金联合基金资助项目(U1908227,U20A20239)。

摘　　要：菱镁矿作为一种重要的工业生产用矿产资源,由于生产工艺的制约,致使大量低品位菱镁矿无法得到有效利用。为了提高这类菱镁矿提纯工艺的作业率,通过归纳难免离子、捕收剂、抑制剂对菱镁矿浮选过程中白云石分离的作用机制和煅烧温度、原料粒径对菱镁矿热选过程中白云石提纯的影响,分析了浮选/热选工艺的优缺点;另一方面介绍了采用提纯后的菱镁矿制备的镁钙基耐火材料在炼钢领域的应用进展。Magnesite is an important mineral resource for industrial production.Due to the restriction of production process,a large number of low-grade magnesite cannot be effectively utilized.In order to improve the operation rate of this kind of magnesite purification process,the mechanism of action of inevitable ions,collectors and inhibitors on dolomite separation in the flotation process of magnesite was summarized,the influence of calcination temperature and raw material particle size on dolomite purification in the thermal separation process of magnesite was summarized,and the advantages and disadvantages of flotation/thermal separation process was analyzed.Finally,the application progress of magnesia-calcium-based refractories prepared by purified magnesite in the field of steelmaking was introduced.

关 键 词：菱镁矿 白云石 浮选工艺 热选工艺 镁钙基耐火材料 

分 类 号：TQ175.7[化学工程—硅酸盐工业]