Intensification of Eudialyte Concentrate Leaching by Nanosecond High-Voltage Pulses

被引：6
|
作者：
Chanturia, V. A. [1 ]
Bunin, I. Zh. [1 ]
Ryazantseva, M. V. [1 ]
Chanturia, E. L. [1 ]
Samusev, A. L. [1 ]
Koporulina, E. V. [1 ]
Anashkina, N. E. [1 ]
机构：
[1] Russian Acad Sci, Academician Melnikov Res Inst Comprehens Exploita, Moscow 111020, Russia
来源：
JOURNAL OF MINING SCIENCE | 2018年 / 54卷 / 04期
基金：
俄罗斯科学基金会;
关键词：
Eudialyte; XPS; FTIR; SEM; structural and chemical properties; microhardness; high-power electromagnetic pulses; leaching; MECHANISM; XPS;
D O I：
10.1134/S106273911804423
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
The mechanism of weakening and directional change in structural and chemical properties of eudialyte under nonthermal exposure to nanosecond high-voltage electromagnetic pulses and nitric-acid leaching is studied. The methods of X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, scanning electron microscopy and microhardness measurement are used. The rational mode of high-energy pulsed treatment is determined. After such mode treatment, the acid leaching of eudialyte concentrate results in recovery of zirconium and total rare earth elements higher by 1.7 and 1.4 times as against reference standards.
引用
收藏
页码：646 / 655
页数：10
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