硫酸渣脱硫制备高品质铁精矿研究进展  

Review of research progress on preparation of high-quality iron concentrate from pyrite cinder by desulphurization

作　　者：左豪恩 温建康[1] 崔兴兰 武彪[1] 陈勃伟[1] 尚鹤[1] 

机构地区：[1]北京有色金属研究总院生物冶金国家工程实验室

出　　处：《工程科学学报》2018年第1期1-8,共8页Chinese Journal of Engineering

基　　金：国家科技支撑计划课题资助项目(2015BAB12B03);青海省123重大科技资助项目(2015GXQ06A)

摘　　要：利用硫酸渣脱硫制备高品质铁精矿具有良好的的工业利用价值,不仅可以解决烧渣的综合利用问题,而且可以解决其对环境影响的问题.本文系统介绍了硫酸渣脱硫制备高品质铁精矿的脱硫技术方法、工艺流程及最新研究进展.硫酸渣脱硫方法主要有化学法、联合法和生物法.化学法主要包括酸浸、碱浸,联合法可分为碱浸-酸浸、浮选-磁选、重选-浮选、磁化焙烧-磁选等联合工艺方法.比较了这些方法的工艺路线及存在的优缺点,提出了生物法具有良好的工业应用前景,展望了该方法未来的研究方向为：高效脱硫菌种的选育,生物脱硫液的循环使用,硫酸渣生物脱硫协同回收有价金属,生物脱硫过程基础理论及工程化技术研究等.The preparation of high-quality iron concentrate from pyrite cinder by means of desulphurization has potential industrial applications.On one hand,the comprehensive utilization of pyrite cinder can be achieved,while on the other hand,the environmental problems that it causes can be solved effectively.In this study,the desulfurization technology and its process flowsheet,as well as recent advances,were summarized in detail.There are mainly three desulfurization methods,namely,chemical leaching,combined process,and bioleaching method.Chemical leaching mainly involves the acid leaching and alkali leaching processes.The combined process contains the alkali-acid leaching process,flotation-magnetic separation,gravity separation-flotation,magnetic roasting-magnetic separation,etc.The technical features of these methods were introduced,and it is concluded that bioleaching has a potential application value.The research areas of bioleaching method in a future will be included as：the breeding of effective desulfurization bacteria,cyclic utilization of desulfurization water,synergistic recovery of valuable metals,and basic investigation and engineering technology research in the bioleaching desulfurization process.

关 键 词：硫酸渣 铁精矿 化学法 联合法 生物法 脱硫 

分 类 号：X756[环境科学与工程—环境工程]