工程科学学报，第40卷，第1期：1-8,2018年1月 Chinese Journal of Engineering,Vol.40,No.I:1-8,January 2018 DOI:10.13374/j.issn2095-9389.2018.01.001;http://journals.ustb.edu.cn 硫酸渣脱硫制备高品质铁精矿研究进展 左豪恩，温建康四，崔兴兰，武彪，陈勃伟，尚鹤 北京有色金属研究总院生物冶金国家工程实验室，北京100088 ☒通信作者，E-mail:kang3412@126.com 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、浮选一磁选、重选一浮选、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. 关键词硫酸渣：铁精矿：化学法：联合法：生物法：脱硫 分类号X756 Review of research progress on preparation of high-quality iron concentrate from pyrite cinder by desulphurization ZUO Hao-en,WEN Jian-kang,CUl Xing-lan,WU Biao,CHEN Bo-wei,SHANG He National Engineering Laboratory of Biohydrometallury,General Research Insitute for Nonferrous Metals,Beijing 100088.China Corresponding author,E-mail:kang3412@126.com ABSTRACT 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 re- cent 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 applica- tion 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 re- search in the bioleaching desulfurization process. KEY WORDS pyrite cinder;iron concentrate;chemical method;combined process;bioleaching;desulphurization 硫酸渣为硫铁矿在沸腾炉中高温焙烧脱硫氧化高速发展期)，据统计2004一2014年硫酸产量年均 制酸后的固体残渣，目前我国硫酸生产40%~50% 增长率为8.27%，硫铁矿制酸年均增长5.1%，工业 的原料是硫铁矿.近10年是我国硫酸工业的一个 上通常每生产1t硫酸会产生0.8~1.1t的渣，因此 收稿日期：2017-06-22 基金项目：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)工程科学学报,第 40 卷,第 1 期:1鄄鄄8,2018 年 1 月 Chinese Journal of Engineering, Vol. 40, No. 1: 1鄄鄄8, January 2018 DOI: 10. 13374 / j. issn2095鄄鄄9389. 2018. 01. 001; http: / / journals. ustb. edu. cn 硫酸渣脱硫制备高品质铁精矿研究进展 左豪恩, 温建康苣 , 崔兴兰, 武 彪, 陈勃伟, 尚 鹤 北京有色金属研究总院生物冶金国家工程实验室, 北京 100088 苣通信作者, E鄄mail: kang3412@ 126. com 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,联合法可分为碱浸鄄鄄酸浸、浮选鄄鄄磁选、重选鄄鄄浮选、磁化 焙烧鄄鄄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. 关键词 硫酸渣; 铁精矿; 化学法; 联合法; 生物法; 脱硫 分类号 X756 收稿日期: 2017鄄鄄06鄄鄄22 基金项目: 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) Review of research progress on preparation of high鄄quality iron concentrate from pyrite cinder by desulphurization ZUO Hao鄄en, WEN Jian鄄kang 苣 , CUI Xing鄄lan, WU Biao, CHEN Bo鄄wei, SHANG He National Engineering Laboratory of Biohydrometallury, General Research Insitute for Nonferrous Metals, Beijing 100088, China 苣Corresponding author, E鄄mail: kang3412@ 126. com ABSTRACT The preparation of high鄄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 re鄄 cent 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鄄acid leaching process, flotation鄄magnetic separation, gravity separation鄄flotation, magnetic roasting鄄magnetic separation, etc. The technical features of these methods were introduced, and it is concluded that bioleaching has a potential applica鄄 tion 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 re鄄 search in the bioleaching desulfurization process. KEY WORDS pyrite cinder; iron concentrate; chemical method; combined process; bioleaching; desulphurization 硫酸渣为硫铁矿在沸腾炉中高温焙烧脱硫氧化 制酸后的固体残渣,目前我国硫酸生产 40% ~ 50% 的原料是硫铁矿. 近 10 年是我国硫酸工业的一个 高速发展期[1] ,据统计 2004—2014 年硫酸产量年均 增长率为 8郾 27% ,硫铁矿制酸年均增长 5郾 1% ,工业 上通常每生产 1 t 硫酸会产生 0郾 8 ~ 1郾 1 t 的渣,因此