SELECTIVE GOLD DISSOLUTION FROM A ROASTED AURIFEROUS PYRITE ARSENOPYRITE CONCENTRATE

被引：29

作者：

ANGELIDIS, TN

KYDROS, KA

机构：

[1] Department of Chemistry, Aristotelian University, Thessaloniki, GR 540 06

来源：

HYDROMETALLURGY | 1995年 / 37卷 / 01期

关键词：

D O I：

10.1016/0304-386X(94)00020-4

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Gold dissolution from a roasted auriferous pyrite-arsenopyrite concentrate was studied using an iodine-iodide solution as lixiviant. The influence of iodine-iodide concentrations and pH on dissolution yield and side reactions with other ore constituents was examined. Available gold dissolution was fast and almost selective. Silver, lead and copper were found to cause excess iodide consumption, through side reactions, and may be considered as 'iodidecides'. Thermodynamic considerations gave a satisfactory explanation of the experimental findings.

引用

页码：75 / 88

页数：14

共 14 条

[1]

ADAM K, 1990, GOLD 90, P341

[2] A FUNDAMENTAL ROTATING-DISK STUDY OF GOLD DISSOLUTION IN IODINE IODIDE SOLUTIONS [J].

ANGELIDIS, TN ;

KYDROS, KA ;

MATIS, KA .

HYDROMETALLURGY, 1993, 34 (01) :49-64

[3]

[Anonymous], 1966, ATLAS ELECTROCHEMICA

[4]

Bard A. J, 1985, STANDARD POTENTIALS

[5]

DADGAR A, 1989, JOM-J MIN MET MAT S, V41, P37

[6]

Hiskey JB, 1988, MIN PROC EXT MET REV, V4, P95, DOI [10.1080/08827508808952634, DOI 10.1080/08827508808952634]

[7]

JACOBSON R, 1987, FUTURE SOLUTION INSI

[8]

Latimer WM, 1956, OXIDATION POTENTIALS

[9]

McGrew K. J., 1985, US Pat, Patent No. [4,557,759, 4557759]

[10] A ROTATING-DISK STUDY OF GOLD DISSOLUTION BY BROMINE [J].

PESIC, B ;

SERGENT, RH .

JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY, 1991, 43 (12) :35-37

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