A Study on the Utilization of Ultrasonic Pretreatment in Zinc Flotation
A Study on the Utilization of Ultrasonic Pretreatment in Zinc Flotation
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DOI：
10.1080/01496395.2014.941876
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发表时间：
2014-12-12
影响因子：
2.8
通讯作者：
Kursun, Hulya
中科院分区：
文献类型：
--
作者：
Kursun, Hulya
本文研究了超声波预处理对铅锌铜矿机械浮选锌的影响。通过无超声预处理浮选实验对KAX用量、起泡剂用量、浮选时间、搅拌速率和Na2SiO3用量等浮选参数进行优化后，在优化条件下进行超声预处理浮选实验。比较了两种方法获得的结果。采用机械浮选法，不经超声波预处理，以含锌1.60%的饲料为原料，得到含锌8.52%的锌精矿，回收率24.64%。另一方面，采用超声波预处理浮选得到了含 18.73%Zn 的精矿，回收率为 33.18%。结论是，超声波预处理由于超声波清洗槽中产生的空化气泡释放的能量而提高了锌浮选的品位和回收率。 XRD 分析也支持了超声波预处理对浮选的积极作用。
This paper deals with the investigation of the effect of ultrasonic pretreatment on the mechanical flotation of zinc from lead-zinc-copper ore. After the chosen flotation parameters such as KAX dosage, frother amount, flotation time, stirring rate and amount of Na2SiO3, were optimized by flotation experiments without ultrasonic pretreatment, flotation experiments with ultrasonic pretreatment were carried out under these optimized conditions. The results obtained by both methods were compared. A zinc concentrate containing 8.52% Zn was obtained from feed containing 1.60%Zn with 24.64% recovery using mechanical flotation method without ultrasonic pretreatment. On the other hand, a concentrate containing 18.73%Zn was obtained with 33.18% recovery using flotation with ultrasonic pretreatment. It has been concluded that, ultrasonic pretreatment improved the grade and recoveries in zinc flotation due to the energy released by cavitation bubbles generated in the ultrasonic cleaning bath. XRD analysis were also supported the positive effect of ultrasonic pretreatment on flotation.