摘要
为促进资源的高效循环利用,将烧结烟灰作为二次资源,从中提取有价元素的研究备受关注。分析了近年来国内外在烧结烟灰上的研究成果,对烧结灰生产氯化钾、硫酸钾等钾盐产品以及回收其中的铁、锌、铅等有价元素的相关工艺路线进行了总结,并提出了通过水提钾、钠,再与铁矿混合还原焙烧,后经磁选提铁、酸碱浸出提锌、铅、银等有价金属的资源回收路线,为开发高效环保的烧结烟灰综合利用技术和提高钢铁行业固废的经济价值提供了理论基础。
The study on extracting available elements from the sintering dust as secondary resources has beenattracted much attention in recycled utilization of resources.We analyzed the recent research on sintering dustfrom home and abroad,and summarized the process routes for the production of potassium salt products such aspotassium chloride and potassium sulfate from sintered dust and the recovery of valuable elements such as iron,zinc and lead.We also proposed a resource recovery route for sintering dust,firstly extracting potassium andsodium with water and reduction roasting with iron ore,and then extracting iron by magnetic separationtechnology,finally extracting zinc,lead,silver and other valuable metals by acid and alkali leachingtechnology.This paper provides a theoretical basis for the development of efficient,environmentally friendlyand comprehensive utilization technology of sintering dust and improving the economic value of solid waste inthe steel industry.
作者
张湘鹤
吕先贺
叶鹏
兰国梁
汪铁林
王存文
吴再坤
ZHANG Xianghe;LU Xianhe;YE Peng;LAN Guoliang;WANG Tielin;WANG Cunwen;WU Zaikun(School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430205,China;Hubei Province Yuanda Chemical Engineering Co.,Ltd,Wuhan 430074,China)
出处
《武汉工程大学学报》
CAS
2019年第1期35-39,45,共6页
Journal of Wuhan Institute of Technology
基金
湖北省重大技术创新专项(2018ACA156)
武汉工程大学大学生校长基金(2016006)
关键词
烟灰
资源化利用
金属
回收
dust
resources utilization
metal
recovery