摘要
对某尾砂进行了综合回收试验研究,在磨矿制度条件试验、浮选药剂条件试验的基础上进行了全流程开路试验,得到锌品位6.23%,回收率61.56%的锌粗精矿;锡品位6.00%,回收率40.00%的锡粗精矿;尾矿中含锌0.10%,锡0.07%,铁3.92%,砷0.17%.对锡石单矿物进行了浮选机理试验研究,研究发现BHA对3种矿物的捕收能力顺序为锡石>方解石>石英,且浮选锡石的最佳p H为9,Cu2+对锡石有明显的抑制作用,Pb2+对锡石有比较明显的活化作用.
The experiment was illustrated on comprehensive recycling to certain tailings. Based upon conditioning tests on grinding system and floatation reagent,the open circuit test was conducted,from which6. 23% of Zinc grade was obtained with a recycling rate of 61. 56% of Zinc crude concentrate and 6. 00% of cassiterite grade was gotten with a recycling rate of 40. 00% of cassiterite crude concentrate. Specifically,the contents of Zinc,Cassiterite,Fe and Arsenic in the very tailings were 0. 10%,0. 07%,3. 92% and 0. 17%respectively. A research on floatation mechanism of Cassiterite ＇s monomineral was also experimented which discoverd the collecting capacity of BHA to the next 3 minerals was put in order with Cassiterite Calcite Quartz. Besides,the best p H for floatation of Cassiterite was 9 and Cu2 ＋was able to restrain cassiterite that was very easy to be activated by Pb2 ＋.
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2015年第3期119-124,共6页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
国家水体污染控制重大科技专项资助项目(2010ZX07212-008
)
环保公益性行业科研专项资助项目(201109005
201209009)
湖南省环保科技资助项目[2012]347号
关键词
尾砂
综合回收
浮选
浮选机理
tailings
comprehensive recycling
floatation
floatation mechanism
