矿浆pH值对重晶石浮选规律的影响  

Effect of pH value on flotation behavior of barite

作　　者：张红英[1] 何晓娟[1] 刘进[1] 

机构地区：[1]广州有色金属研究院,广东广州510650

出　　处：《化工矿物与加工》2015年第12期7-8,17,共3页Industrial Minerals & Processing

摘　　要：考察H_2SO_4作为pH调整剂时,不同矿浆pH测试点对某铅锌尾矿中重晶石矿物浮选规律的影响。试验发现,矿浆pH值随搅拌时间、pH调整剂用量、矿浆质量分数三者的变化而变化,导致浮选过程的控制难度增加。测试结果表明,在加入捕收剂且pH值控制在5.5~6.5范围时,将矿浆中的Ca^(2+)、Mg^(2+)的质量分数控制在较低水平可获得较高的重晶石回收率。Test point of pulp.pH value on flotation behavior of barite with H2 SO4 as pH regulator was investigated. The flota- tion tests showed that pH value of pulp changed greatly with the change of＇conditioning period, regulator dosage and pulp concen- tration, which resulted in the greater difficulty in the control of flotation process. The test results indicated that higher recovery rate of barite could be obtained when controlling the concentra- tion of Caz＋ ,Mg2＋ in the pulp with addition of collector and pH value within 5.5～6.5.

关 键 词：重晶石 综合回收 浮选 矿浆pH值 

分 类 号：TD985[矿业工程—选矿]