某反浮选捕收剂性能优化试验

现代矿业 ›› 2016, Vol. 32 ›› Issue (10): 61-63.

某反浮选捕收剂性能优化试验

白晓鸣¹，刘雁翎¹，徐晋¹，姜效军²，崔玲²

1.鞍钢集团矿业设计研究院；2.辽宁科技大学矿业学院

出版日期:2016-10-25 发布日期:2016-11-25

Optimization of Reverse Flotation Collector Property

Bai Xiaoming¹，Liu Yanling¹，Xu Jin¹，Jiang Xiaojun²，Cui Ling²

1.Mining Design & Research Institute, Anshan Iron & Steel Group；2.Mining Institute, Liaoning University of Technology

Online:2016-10-25 Published:2016-11-25

摘要/Abstract

摘要： 采用脂肪酸类捕收剂浮选贫铁矿石效果较好，但需加温浮选，成本较高。利用特殊结构的嵌段聚氧乙烯聚氧丙烯醚制成捕收剂KK-2，对某铁品位47.91%的混磁精矿进行反浮选试验。结果表明，捕收剂KK-2可提高脂肪酸的低温分散性，提高石英表面接触角，改善其可浮性，能将浮选矿浆温度由39～42 ℃降至25 ℃，闭路浮选流程从1粗1精3扫简化为1粗1精1扫，精矿铁品位在68.30%左右基本不变，回收率由88.68%提高到91.15%，分选效果理想，同时缩短了工艺流程，降低了选矿成本，改善了选别指标，可供选厂技术改造参考。

关键词: 反浮选, 表面活性剂, 短流程, 浮选温度

Abstract: Poor iron ore treated by fatty acid will have good index, while has problems of high cost from heated flotation. Collector KK-2 was prepared using special structure of block polyoxyethylene-polyoxypropylene, and reverse flotation test was conducted on the mix magnetic concentrate with 47.91% Fe. Results indicated that, collector KK-2 can improve dispersity of fatty acid at low temperature, increase quartz surface contact angle, improve floatability, decrease the pulp temperature from 39~42 ℃ to 25 ℃, closed-circuit flotation flowsheet was simplified as one roughing-one cleaning-one scavenging from one roughing-one cleaning-three scavenging, iron grade of concentrate was also 68.30% around as the original, iron recovery increased from 88.68% to 91.15%, the separation index is well, the process was shorted, cost reduced, separation index improved. The results can provide reference for the plant.

Key words: Reverse flotation, Surfactant, Shortened procedure, Flotation temperature

白晓鸣, 刘雁翎, 徐晋, 姜效军, 崔玲. 某反浮选捕收剂性能优化试验[J]. 现代矿业, 2016, 32(10): 61-63.

BAI Xiao-Ming, LIU Yan-Ling, XU Jin, JIANG Xiao-Jun, CUI Ling. Optimization of Reverse Flotation Collector Property[J]. Modern Mining, 2016, 32(10): 61-63.

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