Mineralogical Characterization and Gravity Separation of Lean Grade Mixed Copper Ore of Malanjkhand Deposit

被引：10

作者：

Jena, Silpa Sweta ^{[1
]}

Gharai, Mousumi ^{[1
]}

Mandre, N. R. ^{[1
]}

Venugopal, R. ^{[1
]}

机构：

[1] IIT ISM Dhanbad, Dept Fuel & Mineral Engn, Dhanbad, Jharkhand, India

来源：

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2019年 / 72卷 / 01期

关键词：

Mixed copper ore; Characterization; Pre-concentration; Mozley Mineral Separator (MMS); Separation efficiency (SE) and enrichment ratio (ER); RECOVERY; TAILINGS;

D O I：

10.1007/s12666-018-1478-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

An in-depth mineralogical characterization has been carried out to develop a suitable beneficiation process route for a low-grade copper ore. Characterization and preliminary gravity separation studies were undertaken on low-grade Malanjkhand mixed copper ore to remove siliceous gangue and improve the copper grade. The characterization results indicated that the mixed copper ore was of very low grade (0.48% Cu) with a predominant amount of Quartz (74.12%) and with a moderate amount of feldspar and mica. The presence of chalcopyrite and pyrite in minor quantity along with malachite in traces was noted. Preliminary experiments were performed in a Mozley mineral separator by varying flow rate, amplitude and time to discard maximum quantity of liberated quartz. The optimum values of the variables for the efficient pre-concentration were determined based on the separation efficiency. The characterization and preliminary separation studies indicated that gravity-based separation could be opted for the pre-concentration of such mixed copper ore.

引用

页码：245 / 255

页数：11

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