铅锑锌铁硫化矿-乙硫氮电化学浮选行为的研究  

Study on the Electrochemical Behavior of Flotation of Lead-Antimony-Zinc-Iron Sulfides by DDTC

作　　者：张芹[1] 徐兢[2] 王昌安[1] 孙召平[3] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081 [2]中南大学资源加工与生物工程学院,湖南长沙410083 [3]济南钢铁集团铸管公司,山东济南250101

出　　处：《矿产综合利用》2006年第3期13-16,共4页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金重点项目(50234010)

摘　　要：考查了乙硫氮为捕收剂时,磁黄铁矿、脆硫锑铅矿和铁闪锌矿的浮选行为,发现在pH2～12的范围内,磁黄铁矿具有良好的可浮性,当pH＞12时,可浮性下降.而脆硫锑铅矿在整个pH范围内,均具有很好的可浮性.铁闪锌矿只有在酸性条件下才有较好的可浮性,当pH＞5以后,浮选回收率急剧下降而不可浮.并采用氧化剂过硫酸铵、还原剂硫代硫酸钠调节矿浆电位,考查了磁黄铁矿、脆硫锑铅矿和铁闪锌矿在不同pH值下可浮性与矿浆电位的关系,得出了矿物可浮的电位-pH区间.研究表明,磁黄铁矿和脆硫锑铅矿可分离电位区间很窄.The flotation behavior of pyrrhotite ,jamesonite and marmatite was investigated with sodium diethyldithio- carbamate（DDTC） as a collector. It is showm that pyrrhotite has good floatability from pH2 to pH12 ,and relatively poor floatability at pH 〉 12. Jamesonite has very good floatability in whole pH range. The marmatite exhibited good floatability at pH 〈 5. The flotation responses of these minerals are also dependent on the pulp potential. The potential-pH range suited for flotation of these minerals was established. Research results demonstrated that the potential range suited for flotation of three minerals is very narrow.

关 键 词：磁黄铁矿 脆硫锑铅矿 铁闪锌矿 乙硫氮 电化学浮选 

分 类 号：TD923.14[矿业工程—选矿]