含铬钒渣的资源化综合利用研究-钢铁钒钛.PDF

第33卷第1期 钢摇 铁摇 钒摇 钛 Vol.33,No.1 2012年2月 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 IRON STEEL VANADIUM TITANIUM 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 February2012 苏收收收收收收苏收 收 综合利用苏 苏收收收收收收 含铬钒渣的资源化综合利用研究 曹宏斌,林摇 晓,宁朋歌,张摇 懿 (中国科学院过程工程研究所环境污染控制研究中心,湿法冶金国家工程实验室,北京 100190) 摘摇 要:介绍了磷化工行业钒铬废渣高值化清洁利用工艺路线,并对其关键技术进行了研究,包括新型萃取体系的 研发与优化、萃取机理的探讨、萃取中间层形成机理与控制方法等。 在此基础上,与上下游单元无缝链接,形成了钒 铬废渣全组分综合利用工艺包,并建成了1.5万t/ a规模的钒铬废渣示范工程,获得了良好的经济、社会、环境效益。 关键词:含钒铬渣;萃取;全组分综合利用;中间层控制 中图分类号:X758摇 摇 文献标识码:A摇 摇 文章编号:1004-7638(2012)01-0035-05 Comprehensive Utilization of Chromium鄄bearing Vanadium Slag Cao Hongbin,Lin Xiao,Ning Pengge,Zhang Yi (National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology,Institute of Process Engineer鄄 ing,Chinese Academy of Sciences,Beijing 100190,China) Abstract:Chromium鄄bearing vanadium slag contains vanadium,chromium and other metals which are important nationalstrategicresources. However,they aretoxictohumanhealth,soitissignificanttodis鄄 posethem. Cleanutilizationrouteof chromium鄄bearingvanadiumslagwithhighaddedvalueinphosphor鄄 us chemicalindustryisintroducedinthispaper. Keytechnologiesarealsoresearched,includingresearch and development of new extraction system,mechanism of extraction,formation mechanism and control of the middle layer. Onthisbasis,aseamlesslinkbetweenextractionandupstreamanddownstreamunitsis realized,which results in a technology package of comprehensive utilization of all componentsin chromi鄄 um鄄bearing vanadium slag. Furthermore,a 15 000 t/ a demonstration project has been built and signifi鄄 cant economic,social and environmental benefits have been achieved. Key words:chromium鄄bearing vanadium slag;extraction;comprehensive utilization of all components; middle鄄layer control