Optimization of Gold Recovery from Sedimentary Rock-Hosted Disseminated Agh-Darreh Gold Deposit in Glycine-Copper-Cyanide Leaching System

被引：0

作者：

Asadi, Sara ^{[1
]}

Abdollahi, Hadi ^{[1
]}

Ardejani, Faramarz Doulati ^{[1
]}

Bastami, Sina Abdi ^{[2
]}

Ebrahimi, Ehsan ^{[1
]}

Magdouli, Sara ^{[3
]}

机构：

[1] Univ Tehran, Coll Engn, Sch Min Engn, POB 14155-6619,16 Azar St,Enghelab Eslami Ave, Tehran 14174-66191, Iran

[2] Faravari Pouya Zarcan Agh Darreh Co, Dept Res & Dev, Shahid Dr Beheshti St (Abbas Abad),Pakistani St &, Tehran 1531616111, Iran

[3] York Univ, Lassonde Sch Engn, Dept Civil Engn, Toronto, ON M3J 1P3, Canada

来源：

JOM | 2024年 / 76卷 / 09期

关键词：

ADSORPTION; ACID; ORES;

D O I：

10.1007/s11837-024-06710-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Gold extraction has long relied on cyanidation yet faces challenges including toxicity and refractory ore usage. This study explores the glycine-copper-cyanide leaching system's potential for gold recovery from sedimentary rock-hosted disseminated Agh-Darreh gold ore. Initially, cyanidation experiments tested increasing temperatures' impact. Concurrently, classical experiments evaluated key parameters-temperature, time, and sodium cyanide to copper cyanide molar ratio-on gold leaching with glycine. Design of Experiments (DOE) methodology was applied, considering three interaction parameters. Results showed 90% recovery at 50 degrees C, peaking at 93% at 35 degrees C with an 8-h leaching time using the glycine-copper-cyanide system. Increasing the sodium cyanide-to-copper cyanide ratio furthered better gold recovery, attributed to copper glycinate complex formation with glycine, enabling free cyanide redistribution. This study underscores the glycine-copper-cyanide leaching system's efficacy as a cyanidation alternative for efficient gold extraction from sedimentary deposits.

引用

页码：5342 / 5353

页数：12

共 25 条

[1]

Adams M.D., 2005, Advances in Gold Ore Processing

[2] Leaching and recovery of gold from ore in cyanide-free glycine media [J].