期刊论文

On the tracer of the uranium leakage in the process of stope leaching

中文

安全与环境学报

1009-6094

2017

17

1

178-183

10.13637/j.issn.1009-6094.2017.01.035

国家自然科学基金项目（11275092）；

本校为第一机构

为了准确、及时判断原地爆破浸出采铀堆场底部是否发生渗漏,需寻找合适的示踪剂在喷淋浸出过程中开展示踪。先采用静态试验在候选示踪剂荧光素钠、溴化钾、碘化钾中筛选出不影响铀的浸出且吸附量最小的荧光素钠作为示踪剂;从表面活性剂MES、MAEPK、DMSS、SDS中,筛选出既有利于铀的浸出又可在铀浸出过程中降低矿石对示踪剂荧光素钠吸附的SDS。再通过动态柱试验进一步研究荧光素钠与表面活性剂SDS的示踪性能。结果表明,荧光素钠不影响铀浸出,添加表面活性剂不仅使铀浸出率提高约9.01%,而且降低了铀矿石对荧光素钠的吸附,尤其大大降低了矿石对荧光素钠的初始吸附,使得初始穿透水中荧光素钠的质量浓...

The paper is engaged in a study of the tracer of uranium leakage in the process of stope leaching. As is known, it is necessary to find the suitable tracer in the process of spray leaching so as to determine whether the leakage occurs at the bottom of the yard of uranium mine by way of in-situ blasting and stope leaching accurately and timely. For this purpose, we have chosen the most appropriate tracer and surfactant through static experiments, and, then, we have managed to simulate the tracing behavior of the tracer and the surfactant through the dynamic column experiment. The results of the...