Application of a Novel Inorganic Activator X-43 in Flotation of Germanium-bearing Sphalerite
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摘要:
对贵州某载锗闪锌矿进行了锌活化剂优化试验研究, 用新型无机活化剂X-43与传统活化剂硫酸铜进行了对比。在石灰用量1 500 g/t、X-43活化剂用量700 g/t、捕收剂用量150 g/t的最佳条件下, 锌精矿中锌的品位和回收率分别为52.87%和67.24%, 锗的品位和回收率分别为715.30 g/t和63.36%。与使用硫酸铜相比, 使用X-43获得的锌精矿中锌品位高0.83百分点, 锌回收率高4.27百分点; 锗品位高8.4 g/t, 锗回收率高6.79百分点。试验结果表明, 相比传统的活化剂硫酸铜, 新型活化剂X-43的活化能力更强, 选择性更好。
Abstract:The optimization tests of zinc activator were carried out with a germanium-bearing sphalerite ore in Guizhou. The comparative tests were carried out with the novel inorganic activator X-43 and the traditional activator copper sulfate. Under the optimal conditions of lime dosage of 1 500 g/t, X-43 activator dosage of 700 g/t and collector dosage of 150 g/t, the grade and recovery of zinc in zinc concentrate were 52.87% and 67.24% respectively, and the grade and recovery of germanium were 715.30 g/t and 63.36% respectively. Compared with the use of copper sulfate, the zinc grade obtained by using X-43 increased 0.83 percent, and the zinc recovery increased 4.27 percent; the germanium grade increased 8.4 g/t, and the germanium recovery increased 6.79 percent. The results showed that compared with the traditional activator copper sulfate, the novel activator X-43 has stronger activation ability and better selectivity.
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Key words:
- germanium /
- sphalerite /
- x-43 /
- copper sulfate /
- activator /
- flotation
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表 1 原矿化学多项分析(质量分数)结果
Table 1. Chemical multi-element analysis results (mass fraction) of the raw ore
/% 成分 MgO Al2O3 SiO2 S CaCO3 Fe Zn Ge 含量 12.04 6.98 35.66 2.44 34.79 1.98 6.01 91.00 注：Ge含量单位为g/t。 
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表 2 原矿锌物相分析结果
Table 2. Zinc phase analysis results of the raw ore
/% 物相 硫酸锌 氧化锌 硫化锌 锌铁尖晶石 总锌 含量 0.077 0.81 5.19 0.023 6.01 分布率 0.14 13.27 86.21 0.38 100.00
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表 5 闭路试验结果
Table 5. Results of the closed-circuit tests
产品名称 产率/% 品位 回收率 Zn/% Ge/(g·t-1) Zn/% Ge/(g·t-1) 精矿 10.18 51.55 796.56 85.95 84.72 尾矿 89.82 0.98 13.73 14.05 15.28 给矿 100.00 6.07 93.00 100.00 100.00
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