多膛炉氧化锌烟尘碱洗脱氟氯研究  

Study on Fluorine Chlorine Removed from Zinc Oxide Fume of Multiple-hearth Burner by Alkali Cleaning

作　　者：付光 刘俊场 曲洪涛 付维琴 顾利坤 张特 FU Guang;LIU Jun-chang;QU Hong-tao;FU Wei-qin;GU Li-kun;ZHANG Te(Yunnan Chihong Zn&Ge Co.,Ltd.,Qujing,Yunnan 655011,China;Kunming Metallurgical Research Institute Company Limited,Kunming,Yunnan 650031,China)

机构地区：[1]云南驰宏锌锗股份有限公司,云南曲靖655011 [2]昆明冶金研究院有限公司,云南昆明650031

出　　处：《云南冶金》2020年第1期36-39,共4页Yunnan Metallurgy

基　　金：云南省科技厅科技人才和平台计划-云南省技术创新人才后备人选（2019HB081）

摘　　要：采用碱洗工艺脱除多膛炉高氟氯氧化锌烟尘中的氟、氯,研究了碳酸钠浓度、碱洗温度、碱洗时间、液固体积质量比、氢氧化钠浓度对氟、氯脱除率及锌损失率的影响。结果表明,在碳酸钠浓度为200g/L、碱洗温度为80℃、碱洗时间为2.0h、液固体积质量比为3mL/g的最佳工艺条件下,氟、氯脱除率分别可达80.72%、88.43%,锌损失率为0.35%。Fluorine chlorine in zinc oxide fume of multiple-hearth burner is removed by alkali cleaning,the effect of sodium carbonate concentration,alkaline concentration,alkaline cleaning time,liquid solid mass ratio,sodium hydroxide concentration on fluorine chlorine removal rate and on zinc loos ratio.The results show,under the best process conditions that the sodium carbonate concentration is 200 g/L,alkaline cleaning temperature is 80℃,alkaline cleaning time is 2.0 h,the liquid solid mass ratio is 3 mL/g,the removal rate of fluorine and chlorine can reach to 80.72%and 88.43%separately,the zinc loss ratio is 0.35%.

关 键 词：锌 多膛炉 氟 氯 脱除率 碱洗 

分 类 号：TF813[冶金工程—有色金属冶金]