Experimental Research on Rough Flotation of Lead in Bainiuchang Lead-Zinc Mines

2014 ◽  
Vol 926-930 ◽  
pp. 108-110
Author(s):  
Qi Fu Zhang ◽  
Zhuo Yue Lan ◽  
Xing Ke Shang
Keyword(s):  
Experimental Research ◽  
Recovery Rate ◽  
Zinc Sulfate ◽  
Zinc Sulphide ◽  
Sodium Hexametaphosphate ◽  
Sulphide Ore ◽  
Lead Recovery ◽  
Lead Zinc ◽  
Flotation Performance ◽  
Plant Practice

Containing Pb (1.09% ) and Zn (1.97%),the lead-zinc sulphide ore of Bainiuchang mine is a refractory resource in Yunnan Mengzi. The flotation performance of lead is ineffective in plant practice. This research is carried out to enhance the rough flotation performance of lead. With the dosage of lime and zinc sulfate as depressors, sodium hexametaphosphate as dispersant, and ethyl thio carbamate and MA as combined collector, the grinding fineness of 85% , a lead concentrate with lead grade of 17.68%, lead recovery rate of 75.59%, and zinc grade of 7.16% was obtained. The performance of rough flotation of lead is improved.

scholarly journals Dispersion effect on a lead–zinc sulphide ore flotation

2009 ◽  
Vol 22 (9-10) ◽  
pp. 752-758 ◽  
Author(s):  
M.O. Silvestre ◽  
C.A. Pereira ◽  
R. Galery ◽  
A.E.C. Peres
Keyword(s):  
Zinc Sulphide ◽  
Dispersion Effect ◽  
Sulphide Ore ◽  
Lead Zinc

Lamellar flotation of a lead-zinc sulphide ore

1991 ◽  
Vol 4 (2) ◽  
pp. 133-140 ◽  
Author(s):  
J. Rubio ◽  
J.A. Solari
Keyword(s):  
Zinc Sulphide ◽  
Sulphide Ore ◽  
Lead Zinc

scholarly journals The Solution Interaction of Tetrathionate Ions and Sodium Isobutyl Xanthate and Its Effect on the Flotation of Galena and Chalcopyrite

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 204
Author(s):  
Ngoni Mhonde ◽  
Leena Pitkänen ◽  
Kirsten Corin ◽  
Nóra Schreithofer
Keyword(s):  
Sulphide Mineral ◽  
Mineral Surface ◽  
Sulphide Ore ◽  
Sulphide Ores ◽  
Ore Processing ◽  
Rest Potential ◽  
Processing Plants ◽  
Lead Zinc ◽  
Flotation Performance ◽  
High Concentrations

Tetrathionates have been found in significantly high concentrations in recycled process waters from massive sulphide ore processing plants. These polythionates react with xanthate added to flotation pulps thus reducing xanthate dosages in solution potentially affecting flotation performance. The current study focused on the effect of the tetrathionate-xanthate reaction on sulphide mineral recoveries. Ore dissolution studies confirmed the generation of tetrathionates by copper-lead-zinc ores. In 20 min, the tetrathionates consumed more than half of the xanthate in solution at pH 7. Rest potential measurements and Fourier transform infrared spectroscopy (FTIR) showed that the degree of collector-mineral interactions of xanthate and both galena and chalcopyrite was greatly reduced in the presence of a 2000 mg/L tetrathionate solution. Microflotation tests showed that chalcopyrite recovery was less sensitive to tetrathionates as indicated by small changes in mineral recoveries. Galena was sensitive to the action of tetrathionates on the mineral surface as the galena recovery significantly declined when floated with xanthate as a collector in both a 500 mg/L tetrathionate solution and a 2000 mg/L tetrathionate solution. These fundamental results lay a sound base on which more discussion into the significance and the effect of tetrathionates on flotation performance of sulphide ores can be developed.

scholarly journals Assessment of Environmental Geochemistry of Lead-Zinc Mining at Ishiagu Area, Lower Benue Trough, Southeastern Nigeria

2020 ◽  
Vol 9 (1) ◽  
pp. 31 ◽  
Author(s):  
Odika, P.O. ◽  
Anike, O.L. ◽  
Onwuemesi, A.G. ◽  
Odika, N.F. ◽  
Ejeckam, R.B.
Keyword(s):  
Heavy Metals ◽  
Flow Direction ◽  
Environmental Geochemistry ◽  
Zinc Sulphide ◽  
Mining Activities ◽  
Southeastern Nigeria ◽  
Rock Types ◽  
Sulphide Ores ◽  
Lead Zinc ◽  
Concentration Levels

Mining activities have long been recognized as a major source of environmental contamination associated with heavy metals and metalloids. This study evaluated the relationship between the occurrence and mining of lead-zinc sulphide ores at Ishiagu, Nigeria, and heavy metal and metalloid contamination. A comparative study of two zones in the area, with and without mining activities was also made Water, soil, stream sediment and ore samples were analyzed, after acid digestion, using atomic absorption spectrophotometer (AAS).  The concentration levels of seven heavy metals and a metalloid namely Pb, Cu, Ni, Zn, Mn, Co, Cd and as were evaluated. While the highest concentration levels of As, Co and Pb (5.20 mg/l, 0.54 mg/l and 3.40 mg/l respectively) were found in water, those of Ni and Mn (2.26 mg/l and 5.48 mg/l respectively) occurred in soil.  For Cu and Zn, highest levels of concentration (2.80 mg/l and 0.41 mg/l respectively) occurred in stream sediments. The variations in the concentration levels of these elements in varying geologic media (soil, water and sediment) indicate influence of rock types, human activities and media physiochemical characteristics. Geostatistical analyses using QQPlot, semivariogram and kriging showed normal distribution of these elements. Distribution and dispersion patterns of the heavy metals indicated increase in concentration levels in the local stream flow direction. Pb, Cu, As, Cd, Mn, and Ni concentrations had reached pollutant levels in water based on WHO standards, while Zn level is below. Since the local people use untreated surface water and groundwater for drinking and other domestic purposes, soil for farming and lead for cosmetics, long term exposure poses significant health risk for humans, animals and plants.

scholarly journals Mineralogical Prediction of Flotation Performance for a Sediment-Hosted Copper–Cobalt Sulphide Ore

Minerals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 474 ◽  
Author(s):  
Laurens T. Tijsseling ◽  
Quentin Dehaine ◽  
Gavyn K. Rollinson ◽  
Hylke J. Glass
Keyword(s):  
Cross Validation ◽  
Democratic Republic Of Congo ◽  
Sulphide Minerals ◽  
Quantitative Correlation ◽  
Sulphide Ore ◽  
Mineralogical Characteristics ◽  
Cobalt Sulphide ◽  
Quantitative Understanding ◽  
Flotation Performance ◽  
Leave One Out

As part of a study investigating the influence of mineralogical variability in a sediment hosted copper–cobalt deposit in the Democratic Republic of Congo on flotation performance, the flotation of nine sulphide ore samples was investigated through laboratory batch kinetics tests and quantitative mineral analyses. Using a range of ore samples from the same deposit the influence of mineralogy on flotation performance was studied. Characterisation of the samples through QEMSCAN showed that bornite, chalcopyrite, chalcocite and carrollite are the main copper-bearing sulphide minerals while carrollite is the only cobalt-bearing mineral. Mineralogical characteristics were averaged per sample to allow for a quantitative correlation with flotation performance parameters. Equilibrium recoveries, rate constants and final grades of the samples were correlated to the feed mineralogy through Multiple Linear Regression (MLR). Target sulphide minerals content and particle size, magnesiochlorite content, carrollite liberation and association of the copper and cobalt minerals with magnesiochlorite and dolomite were used to predict flotation performance. Leave One Out Cross Validation (LOOCV) revealed that the final copper and cobalt grades are predicted with an R2 of 0.80 and 0.93 and Root Mean Square Error of Cross Validation (RMSECV) of 4.41% and 1.34%. The recovery of cobalt and copper with time can be predicted with an R2 of 0.94 for both and an overall test error of 4.70% and 5.14%. Overall, it was shown that quantitative understanding of changes in mineralogy allows for prediction of changes in flotation performance.

Experimental Research on Modifier Optimization of Flotation Process in a Molybdenum Ore in Inner Mongolia

2011 ◽  
Vol 291-294 ◽  
pp. 3372-3376
Author(s):  
Lin Li ◽  
Xian Jun Lu ◽  
Jun Qiu
Keyword(s):  
Sodium Silicate ◽  
Experimental Research ◽  
Inner Mongolia ◽  
Sodium Hexametaphosphate ◽  
Flotation Process ◽  
Dispersing Agent ◽  
Better Than

The research has conducted a experimental research on the issues in modifier of flotation process in a molybdenum ore concentrating mill in Inner Mongolia. The results show that: when the raw ore is grinded into 61% -200 meshes, which is the same to the site production ore, the sorting index is optimum in neutral magma condition; and for dispersing agent, the sorting effect of sodium silicate is better than sodium hexametaphosphate, and the confirmed sufficient quality of sodium silicate is 300g/t.

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