高硫铝土矿浮选除硫药剂的选择  

Selection of Flotation Desulfurization Collector for High-Sulfur Bauxite

作　　者：王晓民[1] 张廷安[1] 吕国志[1] 鲍丽[1] 

机构地区：[1]东北大学多金属共生矿生态化利用教育部重点实验室,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2010年第4期555-558,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50644016,50704011);国家重点基础发展规划项目(2007CB13504);教育部高等学校博士学科点专项科研基金资助项目(20050145029)

摘　　要：考察了十二烷基磺酸钠、乙黄药、乙硫氮、丁黄药和异丁黄药5种浮选剂对高硫铝土矿浮选除硫性能的影响,着重考察了浮选剂用量、浮选时间、浮选矿浆液固质量比、pH值及矿石粒度对浮选除硫率和氧化铝回收率的影响.研究表明,十二烷基磺酸钠不具备浮选除硫的能力;乙黄药和乙硫氮具有一定的浮选除硫能力;丁黄药和异丁黄药浮选除硫的能力很强,较适合用于铝土矿浮选除硫的工业化生产.丁黄药和异丁黄药一步精选开路实验表明,异丁黄药具有较高的选择性,丁黄药具有较强的捕收能力.The desulfhurization performance of 5 flotation collectors for high-sulfur bauxite were investigated,i.e.the dodecyl sodium sulfate,ethyl xanthate,ethyl thiocarbamate,butyl xanthate and isobutyl xanthate,where the influence of dose,floating time,pulp density,pH value and ore grain size on the desulfurization rate and alumina flotation recovery were emphasized.The results showed that the dodecyl sodium sulfate has no floatability for desulfhurization,and that of either ethyl xanthate or ethyl thiocarbamate is limited to a certain extent.And the butyl xanthate and isobutyl xanthate both have high floatability for desulfhurization,so they are suitable for industrial applications.The open-circuit experiments of butyl xanthate and isobutyl xanthate showed that the latter has higher selectivity but the former has strong collectability.

关 键 词：铝土矿 浮选 脱硫 浮选药剂 

分 类 号：TF803.21[冶金工程—有色金属冶金]