含硫铁物料脱硫工艺技术现状  

Research Status of Sulfur Containing Iron Materials Desulfurization Technology

作　　者：罗立群 雷严明 Niyonzima Jean Christophe Luo Liqun;Lei Yanming;Niyonzima Jean Christophe(School of Resources and Environmental Engineering,Wuhan University of Technology,Key Laboratory of Mineral Resources Processing and Environment in Hubei Province,Wuhan,Hubei,China)

机构地区：[1]武汉理工大学资源与环境工程学院,矿物资源加工与环境湖北省重点实验室,湖北武汉430070

出　　处：《矿产综合利用》2022年第6期116-123,共8页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金(51874219)。

摘　　要：硫在含铁物料的开发利用中是有害杂质元素,因此需要脱除。本文介绍了含铁物料中硫的来源、产出特征与危害,归纳了以浮选法、焙烧法、浸出法处理含铁物料脱硫的技术现状,介绍了此3种脱硫方法的适用条件、应用特色,并比较了各自的优缺点。展望未来含硫铁物料脱硫研究与发展方向,指出浮选法需合理选择磨选流程和药剂制度,注重铜离子复合活化剂、黄药类组合捕收剂提高浮选脱硫指标;焙烧法根据含硫矿物组成和热力学性质选择合适的焙烧炉型、筛选适宜的热工制度;生物浸出应结合多形态硫元素的迁移演变特征,培育良性高效菌种、实施短周期高效浸出,以实现高效脱硫。Sulfur is a harmful impurity element that needs to be removed in the development and utilization of iron-containing materials.The sources,occurrence characteristics and hazards of sulfur in iron-containing materials were introduced successively.The technical status of desulfurization of iron-containing materials from three aspects of flotation,roasting and hydrometallurgy was summarized in proper sequence.Moreover,the applicable conditions and application characteristics of these three desulfurization methods were discussed and the advantages and disadvantages of each other were compared.Looking forward to the future research and development direction of sulfur-containing iron material desulfurization,it is pointed out that the flotation method needs to be chosen the grinding flowsheets and reagent systems reasonably,and pay attention to the copper ion composite activator and the xanthate-type composite collector to improve the flotation desulfurization index.The roasting method will be selected the appropriate roaster type and selected the appropriate thermal system according to the composition and thermodynamic properties of sulfurcontaining minerals.Biological leaching should be combined the migration and evolution characteristics of multi-form sulfur elements,by cultivating benign and high-efficiency bacteria,and implementing shortperiod high-efficiency leaching to achieve high-efficiency desulfurization.

关 键 词：含铁物料 脱硫 黄铁矿 氧化焙烧 生物浸出 

分 类 号：TD981[矿业工程—选矿] TF046[冶金工程—冶金物理化学]