Development of the Processing Technology of a Gold-Containing Sulfide Concentrate

被引：0
|
作者：
Neta, V. [1 ]
Strizhko, L. S. [1 ]
机构：
[1] State Tech Univ, Moscow Steel & Alloys Inst, Chair Met Nonferrous Rare & Noble Met, Moscow 119049, Russia
来源：
RUSSIAN JOURNAL OF NON-FERROUS METALS | 2008年 / 49卷 / 02期
关键词：
Noble Metal; Desulfurization; Metal Iron; Blister Copper; Copper Carbon;
D O I：
10.3103/S1067821208020077
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Smelting of a flotation gold-containing concentrate with the use of a copper collector and slag of the four-component system SiO(2)-FeO-Na(2)O-CaO is studied. Optimum parameters are determined for the preliminary roasting of the concentrate (t = 750-800 degrees C, tau = 45-60 min) and its smelting (t = 1200-1250 degrees C, tau = 50-60 min, time of metal-slag stratification is 45 min, concentrate-to-carbon ratio is 10 : 1). It is shown that as the last parameter decreases (below 10 : 1), reduction of hematite and magnetite to metal iron starts with the subsequent transfer of iron into copper. For a fourfold recycling of the copper collector, the extraction of gold was 99.5% and that of silver was 77.7%.
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页码：104 / 109
页数：6
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