磁化时间对丁铵黑药强化方铅矿可浮性的影响机理*

现代矿业 ›› 2024, Vol. 40 ›› Issue (06): 129-.

磁化时间对丁铵黑药强化方铅矿可浮性的影响机理*

为阐明磁化时间对交变磁场磁化预处理捕收剂丁铵黑药改善方铅矿浮选效果的影响

机制，采用表面张力、红外光谱以及接触角等手段，分别对不同磁化时间下磁化丁铵黑药作用后的方

铅矿样品进行表征。结果表明，交变磁场磁化丁铵黑药可显著改善方铅矿的可浮性，与未磁化丁铵

黑药相比，当磁化时间为 10 min，电流频率为 1.5 MHz，线圈匝数为 100 N时，可使方铅矿回收率提高

13.04个百分点

。

上述磁化预处理条件可使丁铵黑药溶液的表面张力降低

10.95 mN/m，丁铵黑药中

N—

H键的相对比例增大

2.36%，从而增强了丁铵黑药的起泡能力。

此外磁化丁铵黑药作用的方铅矿

样品的接触角增大了13.89°，表明磁化预处理可强化丁铵黑药与方铅矿的作用程度，并改善方铅矿的

浮选效果。

1. 酒泉钢铁（集团）有限责任公司；

2. 西安建筑科技大学资源工程学院

出版日期:2024-06-17 发布日期:2024-08-07

Mechanism of Influence of Magnetization Time on Galena Floatability Enhanced by Ammonium Dibutyl Dithiophosphate

Surface tension，infrared spectrum and contact angle are used to characterize the galena

samples to clarify the enhancing mechanism of magnetization time on the galena flotation，with collectoram⁃

monium dibutyl dithiophosphatepre-magnetized by alternating magnetic field. The flotation results show that

the floatability of galena could be significantly improved by magnetizing ammonium dibutyl dithiophosphate

with alternating magnetic field. Compared with unmagnetized ammonium dibutyl dithiophosphate，the recov⁃

ery rate of galena increases 13.04 percentage points when the magnetization time is 10 min，current frequen⁃

cy is 1.5 MHz and the number of turns is 100 N. After pre-magnetized treatment，the surface tension of am⁃

monium dibutyl dithiophosphate is reduced by 10.95 mN/m，and the relative ratio of N-H bond in ammoni⁃

um dibutyl dithiophosphate is increased by 2.36%，which enhances the foaming ability of ammonium dibu⁃

tyl dithiophosphate. In addition，the contact angle of the galena samples increases 13.89°，indicating that

the magnetization pretreatment can strengthen the interaction degree of ammonium dibutyl dithiophosphate

with galena， thus improving the flotation efficiency of galena.

1. Jiuquan Iron and Steel (Group) Co.，Ltd.; 2. School of Resource Engineering，Xi ′an University of Ar⁃chitecture and Technology

Online:2024-06-17 Published:2024-08-07

摘要/Abstract

摘要：