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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >The influence of water quality on the flotation performance of complex sulphide ores: case study at Hajar Mine, Morocco
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The influence of water quality on the flotation performance of complex sulphide ores: case study at Hajar Mine, Morocco

机译:水质对复杂硫化矿浮选性能的影响:摩洛哥哈哈尔矿山的案例研究

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As part of the process optimization project of CMG (Mining Company of Guemassa-Marrakecfa, Morocco), a preliminary study on the effect of water quality on the flotation of galena, sphalerite, chalcopyrite, and pyrrhotite was carried out using asymmetrical fractional factorial design. The multivariable analysis showed that often studied factors, six (Cu~(2+), Zn~(2+), Mg~(2+), Ca~(2+), SO_4~(2-), and PAX) have a significant influence on the flotation of these sulphide minerals. Graphical analysis showed that high concentrations of Cu~(2+) (7-14 mg/L) in synthetic process water increased the recovery of galena, chalcopyrite, sphalerite, and pyrrhotite. At tow Cu~(2+) concentrations (0-7 mg/L), sphalerite was depressed. Zn~(2+) at low concentrations (0-20 mg/L) decreased the recovery of all studied minerals. However, at high concentrations (20-40 mg/L), an increase in chalcopyrite, sphalerite, and pyrrhotite recoveries was observed. Mg~(2+) (100-200 mg/L) decreased the recovery of galena, chalcopyrite, and sphalerite. Ca~(2+) (1200-2000 mg /L) depressed sphalerite flotation. Sulphate ions (SO_4~(2-)) enhanced recovery of all the studied minerals. Potassium amyl xanthate (PAX) promoted sphalerite recovery at high concentrations (10-20 mg/L).
机译:作为CMG(摩洛哥Guemassa-Marrakecfa的矿业公司)的工艺优化项目的一部分,采用不对称分数阶因子设计对水质对方铅矿,闪锌矿,黄铜矿和黄铁矿浮选的影响进行了初步研究。多变量分析表明,经常研究的因素有六个(Cu〜(2 +),Zn〜(2 +),Mg〜(2 +),Ca〜(2 +),SO_4〜(2-)和PAX)。对这些硫化物矿物的浮选有重大影响。图形分析表明,合成工艺水中高浓度的Cu〜(2+)(7-14 mg / L)可以提高方铅矿,黄铜矿,闪锌矿和黄铁矿的回收率。在Cu〜(2+)浓度(0-7 mg / L)下,闪锌矿被压抑。低浓度(0-20 mg / L)的Zn〜(2+)降低了所有研究矿物质的回收率。但是,在高浓度(20-40 mg / L)下,发现黄铜矿,闪锌矿和黄铁矿的回收率增加。 Mg〜(2+)(100-200 mg / L)降低了方铅矿,黄铜矿和闪锌矿的回收率。 Ca〜(2+)(1200-2000 mg / L)抑制闪锌矿浮选。硫酸根离子(SO_4〜(2-))提高了所有研究矿物的回收率。戊基黄原酸钾(PAX)促进了高浓度(10-20 mg / L)闪锌矿的回收。

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