Results 11 to 20 of about 900 (198)
Raman spectroscopy of smithsonite [PDF]
Journal of Raman Spectroscopy, 2007 AbstractRaman spectroscopy at both 298 and 77 K has been used to study a series of selected natural smithsonites from different origins. An intense sharp band at 1092 cm−1 is assigned to the CO32− symmetric stretching vibration. Impurities of hydrozincite are identified by a band around 1060 cm−1.
Frost, Ray, Hales, Matt, Wain, Daria
openaire +4 more sources
Investigation of Leaching Kinetics of Smithsonite Ore [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2018 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 ...
Oral Laçin +2 more
doaj +3 more sources
Results in Physics, 2019 Surface sulfidization is the key to achieving good flotation performance of smithsonite, but its reaction mechanism at the atomic level remains poorly understood.
Jian Liu +5 more
doaj +2 more sources
Origins of Colour of Smithsonite from Yunnan, China
Minerals, 2023 Smithsonite exhibits an extensive range of colours in nature. The internal features, spectral characteristic, and trace elements of several coloured smithsonites (e.g., white, blue, blue-green, yellow, orange, and pink) from Lanping District, Yunnan Province, China, were analysed and the relationship between smithsonite colour and trace elements and/or
Wei Ding +3 more
openaire +2 more sources
Research of kinetics of zinc leaching with sulfuric acid from smithsonite [PDF]
Metalurgija, 2021 The study investigates the kinetics of zinc leaching from smithsonite with sulfuric acid in order to expand the zinc production feedstocks. The recovery rate of zinc from smithsonite into water-soluble zinc sulfate was found at different leaching time ...
R. A. Ramazanova +5 more
doaj +2 more sources
Thermal analysis of smithsonite and hydrozincite [PDF]
Journal of Thermal Analysis and Calorimetry, 2008 Thermogravimetric analysis of synthetic smithsonite and hydrozincite, two secondary minerals of zinc, was used to determine their relative thermal stability. Thermal decomposition of smithsonite occurs at 293°C and hydrozincite at 220°C showing that the carbonate mineral is more stable than the hydroxy-carbonate mineral hydrozincite.
Frost, Ray, Hales, Matt
openaire +4 more sources
Near Infrared Spectroscopy of the Smithsonite Minerals [PDF]
Journal of Near Infrared Spectroscopy, 2008 The importance of NIR spectroscopy has been successfully demonstrated in the present study of smithsonite minerals. The fundamental observations in the NIR spectra, in addition to the anions of OH − and CO 3 2– , are Fe and Cu in ...
Frost, Ray +3 more
openaire +3 more sources
The Effect of Polystyrene on the Carrier Flotation of Fine Smithsonite [PDF]
Minerals, 2017 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 ...
Zhang, Xiangfeng +3 more
openaire +2 more sources
Dissolution kinetics of smithsonite in boric acid solutions [PDF]
, 2017 Physicochemical Problems of Mineral Processing; ISSN 2084 ...
Abali, Yuksel +2 more
openaire +4 more sources
Cationic flotation of smithsonite and dolomite from Brazilian Ambrósia Norte Deposit
REM: International Engineering Journal, 2019 The flotation of low-grade oxidized zinc ores has been commonly used to produce marketable concentrates for many years. Several flotation routes are being successfully used: cationic, anionic and a mixture of anionic and cationic. The choice of the route
Tamíris Fonseca Souza +1 more
doaj +2 more sources