Law of ionic rare earth leaching and ammonia-nitrogen residue under in-situ leaching empirical injection

被引：0

作者：

Wang G.-S. ^{[2
]}

Xie F.-F. ^{[1
,3
,4
]}

Luo S.-H. ^{[2
]}

Peng C.-L. ^{[2
]}

Qin L. ^{[2
]}

Hong B.-G. ^{[1
]}

Yao K. ^{[2
]}

机构：

[1] School of Resources and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou

[2] School of Architectural and Surveying& Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou

[3] Mining Research Laboratory, Jiangxi Ionic Rare Earth Engineering Research Co., Ltd., Ganzhou

[4] National Engineering Research Center for Ionic Rare Earth, Ganzhou

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2020年 / 30卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Ammonia-nitrogen; Elution; In-situ leaching; Injection; Ionic rare earth;

D O I：

10.11817/j.ysxb.1004.0609.2020-35794

中图分类号：

学科分类号：

摘要：

In-situ leaching process of ion-rare earth is mostly based on experience and lack of theory guide, which leads to low resources recovery rate and heavy ammonia-nitrogen residue. An in-situ leaching injection experiment was conducted to unravel the law of ion-rare earth leaching and ammonia-nitrogen residue under empirical injection. The results show that: 1) Judging from the fluctuation rate of leaching rate and variation of leaching rate with depth, the leaching effect on the hilltop is better than hillside than injection boundary. 2) Based on the maximum residual ammonia-nitrogen amount and the depth it occurs, elution degree in injection boundary is higher than the hillside than hilltop. 3) Under the influence of different radiation degrees from injection hole, ore-body permeability spatial variation, et al, leaching rate and residual ammonia-nitrogen amount in empirical injection process present unevenly. Thus, sectional equilibrium injection model was established based on leaching influential factor to instruct scientific injection is of importance. © 2020, Science Press. All right reserved.

引用

页码：1454 / 1465

页数：11

共 31 条

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