Mineralogical Characterization for Selection of Possible Beneficiation Route for Low-Grade Lead–Zinc Ore of Rampura Agucha, India

Nayak, Aryasuta; Ashrit, Shrenivas; Jena, M. S.; Venugopal, R.

doi:10.1007/s12666-020-01887-y

Cited by 8 publications

(2 citation statements)

References 11 publications

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“…Одними из ключевых моментов технико-экономического обоснования являются свойства самой руды. Характеристики руды определяют выбор метода переработки, который оказывает непосредственное влияние на экономику процесса добычи полезных ископаемых, таких как золото [8,9].…”

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Investigation of old waste dump composition of lean gold-bearing ores from the Golden Pride Project (GPP) mining operation in Nzega district, Tanzania

Shirima,

Wikedzi,

Rasskazova

2024

Min.Sci.Technol. (RUS)

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The search for alternative sources of useful minerals is a pressing issue. One such possible source is the processing of lean gold-bearing ores, which previously did not seem feasible to exploit for subsoil users, leading to their disposal in off-balance ore dumps. Processing these resources becomes economically viable as gold prices rise and processing technologies improve over time. This paper presents the elemental and mineralogical composition of lean gold-bearing ore dumps from the Golden Pride Project (GPP) mining operation in Tanzania’s Lihendo district. This area contains an old dump of lean gold-bearing ores, weighing approximately 1.4 million tons. Extracting valuable components from lean mineral raw materials is a current priority. Sampling was conducted to study the dumps. Boreholes were drilled to a depth of 1 m, covering a total sampling area of 20 ha; 18 samples, each averaging 3 kg in weight, were collected. The results of X-ray fluorescence analysis (XRF) indicated the presence of Fe, S, Si, Ca, Ca, Mn, Cu, Al, Cr, Ti, As, and Ag in the collected samples. X-ray diffraction (XRD) analysis revealed that the main minerals in the dumps are muscovite, kaolinite, quartz, montimorillonite, and goethite. The average gold grade in the selected samples is 0.72 g/t. Studies of the grain-size distribution and gold distribution by grain-size classes after ore grinding demonstrated that the majority of gold (74%) is in the −75 μm class. In the initial mineral material of the dumps, the share of the +30-50 mm grain-size class is 81%. The paper proposes potential methods for processing lean dumps of gold-bearing ores. One such methods involves crushing the dump material, separating the −75 μm class, and subjecting it to direct leaching or leaching using “carbon-in-pulp” technique. Heap leaching appears to be the most promising method for extracting gold from such dumps in terms of technical and economic feasibility. Positive experience has been reported in applying this process to ores of similar mineralogical type.

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Section: For Citationunclassified

Investigation of old waste dump composition of lean gold-bearing ores from the Golden Pride Project (GPP) mining operation in Nzega district, Tanzania

Shirima,

Wikedzi,

Rasskazova

2024

Min.Sci.Technol. (RUS)

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“…Process mineralogy has great importance in terms of determining the beneficiation process of a complex or refractory ore (Çelik et al, 2011;Bradshaw, 2014;Nayak et al, 2020;Birinci and Gök, 2021;Altınışık et al, 2022). Recent investigations have shown that effective flotation of such complex ores requires process mineralogy data to be used in developing flotation flowsheets, setting appropriate reagent regimes, and determining liberation degrees (Yang et al, 2016;Bahrami et al, 2019;Zhang et al, 2020;Nghipulile et al, 2022).…”

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confidence: 99%

Beneficiation Of Artvin-Cerattepe copper-zinc ore by flotation

Seyrankaya,

Yontar,

Canbazoğlu

et al. 2023

Physicochem. Probl. Miner. Process.

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The Cerattepe (Artvin) mine contains volcanogenic massive sulfide (VMS) deposits in northeastern Turkey. This is a kuroko type deposit located in Late Cretaceous volcanic, intrusive and sedimentary rocks, and has a structure with dense alteration stages. In this study, batch flotation tests were carried out to determine the flotation behavior of a new sample (mix ore), that was the combination of two different ores with different flotation behaviors. The mixed ore contains 2.18% Cu, 1.46% Zn, (Cu/Zn ratio 1.49) 38.35% Fe, and 41.6% S content. An efficient separation of copper minerals from zinc minerals using the conventional selective flotation method could not be achieved due to complex mineralogy and very low liberation degree. Therefore, sequential selective flotation resulted in poor Cu recovery. The effects of flotation parameters such as collector type, collector amount, particle size, and pH conditions, were investigated to obtain a bulk copper-zinc concentrate. The best results were obtained using thionocarbamate (Aero 3894) and dithiophosphine (Aerophine 3418A) collector reagents at d<sub>80</sub>=40 µm particle size. Under optimal conditions (grain size, d<sub>80</sub>=40 µm, pH=11, amount of collector reagent 60 g/t (Aero 3894), frother (MIBC)=50 g/t, solid ratio=32%, flotation time=8 min), a bulk copper-zinc concentrate containing 13% Cu and 9.5% Zn was obtained with a copper yield of 84.4% and a zinc yield of 88.9%. The concentrate mass pull was 13%. After rougher and two-stage scavenger flotation, a concentrate (rougher concentrate + scavenger products) was obtained with a mass pull of 22%. Copper and zinc recoveries of this concentrate were 91.8% and 92.5%, respectively.

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A Novel Process for Extracting Lead and Zinc from Low-Grade Lead–Zinc Ore Via Low-Temperature Chlorination Roasting and Water Leaching

Chen,

Xu,

Huang

et al. 2024

J. Sustain. Metall.

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Mineralogical Characterization for Selection of Possible Beneficiation Route for Low-Grade Lead–Zinc Ore of Rampura Agucha, India

Cited by 8 publications

References 11 publications

Investigation of old waste dump composition of lean gold-bearing ores from the Golden Pride Project (GPP) mining operation in Nzega district, Tanzania

Investigation of old waste dump composition of lean gold-bearing ores from the Golden Pride Project (GPP) mining operation in Nzega district, Tanzania

Beneficiation Of Artvin-Cerattepe copper-zinc ore by flotation

A Novel Process for Extracting Lead and Zinc from Low-Grade Lead–Zinc Ore Via Low-Temperature Chlorination Roasting and Water Leaching

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