نتایج جستجو برای: Smithsonite

تعداد نتایج: 54  

2017
Xiangfeng Zhang Yuehua Hu Wei Sun Longhua Xu

Carrier flotation is a common technique used to improve flotation recovery of ultrafine ores. In this study, we used coarse polystyrene as the carrier material to enhance flotation recovery of fine smithsonite (ZnCO3) particles. Sodium oleate was used as the collector and played a role in the adhesion of fine smithsonite to polystyrene due to its amphipathic properties. The carrier feature of p...

2016
Mei Yang Wending Xiao Xiang Yang Patrick Zhang

The processing mineralogy characteristics of an oxidized lead-zinc ore from Sichuan were studied systematically using numerous modern instruments. Results showed that lead and zinc oxide content in the ore exceeded the minimum industrial grade, and also included a relatively high concentration of silver and iron. This ore is composed of many different minerals. Major zinc-containing minerals in...

Journal: :Physicochemical Problems of Mineral Processing 2022

Pulp rheology is an important factor affecting flotation. The effects of particle size (150-74 μm, 74-38 38-23μm, -23 μm), pulp density (11.76%-34.78%), pH (5.3-12.4), collector concentration (25-500 mg/dm3), and stirring intensity (400-900 rpm) on the smithsonite, kaolinite, quartz, calcite minerals were investigated in detail. Additionally, agglomerate morphology particles was observed by a p...

Journal: :Minerals 2023

Smithsonite exhibits an extensive range of colours in nature. The internal features, spectral characteristic, and trace elements several coloured smithsonites (e.g., white, blue, blue-green, yellow, orange, pink) from Lanping District, Yunnan Province, China, were analysed the relationship between smithsonite colour and/or impurities was discussed this research. presence iron manganese closely ...

2008
H. Albert Gilg Maria Boni Rupert Hochleitner Ulrich Struck

The O/O and C/C ratios of carbonate minerals formed by supergene oxidation of Zn–Pb deposits and submarine alteration of ancient slags were studied in order to constrain isotope fractionation factors for smithsonite, cerussite, and phosgenite, and to characterize conditions of nonsulfide ore formation. We present new isotope data of carbonate-hosted ores from the Iglesiente district (Sardinia, ...

Journal: :Journal of Raman Spectroscopy 2007

The leaching kinetics of smithsonite ore in acetic acid solutions, an environmental friend, and natural reagent was investigated. The influence of parameters such as reaction temperature, particle size, solid-liquid ratio and acid concentration was studied in order to reveal the leaching kinetics of smithsonite ore. In this study, experimental and statistical methods were carried out in order t...

Journal: :Journal of Thermal Analysis and Calorimetry 2008

A lead-zinc carbonate ore sample containing 2.5% Pb and 9.39% Zn was used in this research work. The sample was prepared from the Darreh-Zanjir mine located in the Yazd province (Iran). Influences of the influential factors on flotation of smithsonite and cerussite were investigated. Among the different parameters involved, dosages of the dispersant, depressants, sulfidizing agent, and collecto...

Journal: :Minerals 2022

The pulp rheology is an important factor affecting flotation performance. Gangue minerals have a significant impact on the rheological property of smithsonite (ZnCO3). complex (high viscosity, poor dispersion) will adversely affect grade and recovery concentrate. To address this problem, effect gangue (kaolinite, calcite, quartz) behavior was investigated with measurement test. results showed t...

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