铅锌冶炼污酸资源化利用技术研究  

Technical Research of Resource Utilization of Waste Acid from Lead-zinc Smelting

作　　者：冯炜光 周中华 陈新 李玉章 张晓秀 邱伟佳 FENG Weiguang;ZHOU Zhonghua;CHEN Xin;LI Yuzhang;ZHANG Xiaoxiu;QIU Weijia(Kunming Metallurgical Research Institute Co.,Ltd.,Kunming,Yunnan 650031,China;State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals,Kunming,Yunnan 650031,China;Yunnan Yuntong Zinc Co.,Ltd.,Kunming,Yunnan 650102,China;Yunnan Xingxian Environmental Protection Co.,Ltd.,Kunming,Yunnan 650106,China)

机构地区：[1]昆明冶金研究院有限公司,云南昆明650031 [2]有色金属强化冶金新技术全国重点试验室,云南昆明650031 [3]云南云铜锌业股份有限公司,云南昆明650102 [4]云南兴贤环保科技有限公司,云南昆明650106

出　　处：《云南冶金》2024年第3期94-99,共6页Yunnan Metallurgy

基　　金：云南省工业高新技术专项计划(202203AA080003);云南省科技人才与平台计划(202405AD 350040)。

摘　　要：针对污酸处理以硫化和氢氧化物沉淀法为主,存在有价资源利用率低及固体废渣、高硬度废水产量大等问题,开展污酸资源化技术研究,对铅锌冶炼污酸资源化提出了重金属脱除-氧化锌中和-除氟氯三段流程的技术路线,结果表明:重金属脱除率达到了98%以上,90%的污酸回收利用,锌损率≤2%,硫回收≥95%,水回收85%~90%。Vulcanization and hydroxide sedimentation method was used for the treatment of waste acid,it has a low resource utilization rate and solid waste slag,large output of high hardness wastewater,and other problems,then the resource technical researches of waste acid were developed,for resource utilization of waste acid from lead-zinc smelting,it proposed a"three steps"technical route that heavy metal removal-zinc oxide neutralization-fluorine and chlorine removal,the results show:that the removal rate of heavy metals can reach more than 98%,there are 90%waste acid can be recycled,the loss rate of zinc≤2%,sulfur recovery rate≥95%,water recovery rate is 85%~90%.

关 键 词：铅锌冶炼 污酸 资源化 重金属 有价资源 固体废渣 

分 类 号：X758[环境科学与工程—环境工程]