KINETIC-STUDY OF PYRITE OXIDATION IN BASIC CARBONATE SOLUTIONS

被引：9

作者：

GUILINGER, TR

SCHECHTER, RS

LAKE, LW

机构：

[1] UNIV TEXAS,DEPT PETR ENGN,AUSTIN,TX 78712

[2] UNIV TEXAS,DEPT CHEM ENGN,AUSTIN,TX 78712

[3] SANDIA NATL LABS,ALBUQUERQUE,NM 87185

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1987年 / 26卷 / 04期

关键词：

AMMONIA - Applications - PYRITES - Oxidation - SULFUR COMPOUNDS - Measurements;

D O I：

10.1021/ie00064a035

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The general goal of this experimental study was to find ways to control the unwanted oxidation of pyrite during the in situ leaching of uranium ores. We investigated the effect of particle size, leaching pH, flow rate, total carbonate concentration, and cation type of column leaching rates. Our work appears to be the first dealing with pyrite leaching in test columns at high pH in which the identity and percentages of the various eluted sulfur compounds was measured. The most interesting of the experimental observations was the ultimate ceasing of the pyrite reaction when using an ammonia leachant.

引用

页码：824 / 830

页数：7