湿法炼锌硫酸盐溶液中除氟试验研究_胡安生
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2019-10-07 23:11:00
文档简介:
湿法炼锌硫酸盐溶液中除氟试验研究①胡安生,张旭,沈庆峰,张积锴,孙敬会(昆明理工大学冶金与能源工程学院,云南昆明650093)摘要:采用一种新型铝基复合除氟剂,以吸附沉淀法从湿法炼锌硫酸盐溶液中除氟。试验结果表明:在初始氟浓度为300mg/L的硫酸锌溶液中,加入除氟剂20g/L,反应时间80min,温度50℃,pH值4.5的条件下,除氟率可达87.88%,除氟后液残氟浓度为36.35mg/L,能满足电积锌的要求。关键词:湿法炼锌;硫酸锌溶液;除氟中图分类号:TF111文献标识码:Adoi:10.3969/j.issn.0253-6099.2015.04.027文章编号:0253-6099(2015)04-0101-03ExperimentalStudyonDefluoridationofSulfateSolutionfromHydrometallurgicalExtractionofZincHUAn-sheng,ZHANGXu,SHENQing-feng,ZHANGJi-kai,SUNJing-hui(FacultyofMetallurgyandEnergyEngineering,KunmingUniversityofScienceandTechnology,Kunming650093,Yunnan,China)Abstract:Adsorption-precipitationmethodwasusedfordefluoridationofsulfatesolutionfromhydrometallurgicalextractionofzincbyusinganovelalumina-containingcompositedefluoridationreagent.Theresultsshow,withtheconcentrationofdefluoridationreagentas20g/L,reactiontimeof80min,pulptemperatureat50℃andpHvalueof4.5,thedefluoridationrateforthezincsulfatesolutionwiththeinitialfluorideconcentrationat300mg/Lattains87.88%,andthesolutionmeetstherequir
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