Results 21 to 30 of about 45,698 (227)

Trace elements geochemistry of galena in fluorite deposits from central Alborz, Mazandaran Province

Journal of Economic Geology, 2020
Introduction Trace elements including As, Sb, Bi, Ga, Ge, In, Hg, Cd, Tl, Se and REEs have special applications in various industries due to their physical and chemical properties.
Mahtab Hamzeh, Behnam Shafiei Bafti, Hadi Omrani   +2 more
doaj   +1 more source

Application of Mixed Potential Theory to Leaching of Mineral Phases

Reactions, 2022
Leaching is a central unit operation in the hydrometallurgical processing of minerals, which often occurs by means of electrochemical reactions. Application of mixed potential theory to explain the kinetics of oxidative and reductive leaching processes ...
César A. C. Sequeira
doaj   +1 more source

Heat Capacity of PbS: Isotope Effects [PDF]

, 2007
In recent years, the availability of highly pure stable isotopes has made possible the investigation of the dependence of the physical properties of crystals, in particular semiconductors, on their isotopic composition. Following the investigation of the
A. H. Romero, A. T. Petit, B. Lange, D. H. Parkinson, G. Grabeckia, G. Siegle, J. Serrano, K. S. Upanhyaya, M. Cardona, P. A. Varotsos, P. Debye, R. Dalven, R. K. Kremer, R. Lauck, S. N. Lykov, W. Paul, Yu. I. Ravich   +16 more
core   +2 more sources

A new stylolite classification scheme to estimate compaction and local permeability variations [PDF]

, 2017
This study was carried out within the framework of DGMK (German Society for Petroleum and Coal Science and Technology) research project 718 “Mineral Vein Dynamics Modeling”, which is funded by the companies ExxonMobil Production Deutschland GmbH, GDF ...
Beaudoin, Nicolas, Bons, Paul D., Chung, Peter, Gomez Rivas, Enrique, Koehn, Daniel, Rood, Margaret P.   +5 more
core   +1 more source

Effect of hydrogen peroxide on flotation behavior and mechanism of galena with different pre-adsorbed collectors

Results in Engineering
This study investigates the oxidation rate of galena when different collectors are pre-adsorbed onto its surface under the action of hydrogen peroxide (H2O2).
Xusheng Yang, Longxia Jiang, Bo Feng, Jianying Liu   +3 more
doaj   +1 more source

Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium [PDF]

, 2018
The drillhole information from the Lontzen-Poppelsberg site has demonstrated three orebodies and has allowed the estimation of the extension of the lodes, their dip, and the location at the ground surface.
Chouteau, Michel, Dumont, Gaël, Evrard, Maxime, Francis, Olivier, Hermans, Thomas, Nguyen, Frédéric, Pirard, Eric   +6 more
core   +5 more sources

The effects of NaCl addition on the particle-bubble interactions of galena in the presence of xanthate

Results in Surfaces and Interfaces
This work investigated the effects of NaCl addition on galena flotation in the presence of xanthate. The micro-flotation experiments were performed using NaCl solutions which also included xanthate, at pH 9 (±0.1).
Anna M. Nowosielska, Aleksandar N. Nikoloski, Drew F. Parsons   +2 more
doaj   +1 more source

Aspectos del yacimiento de caliza en la Hoya del cobre en el páramo de Sumapaz, al sur de Bogotá

Boletín Geológico, 1953
De acuerdo con el deseo del Gobierno Nacional de integrar la región de Sumapaz a la economía capitalina, se están tomando medidas para darla a conocer más a fondo, sobre la base de un levantamiento aerofotogramétrico que depende de la utilización de ...
Roberto Wokittet
doaj   +1 more source

Genesis of Pb-Zn-Cu-Ag Deposits within Permian Carboniferous-Carbonate Rocks in Madina Regency, North Sumatra

Indonesian Journal on Geoscience, 2015
DOI:10.17014/ijog.2.3.167-184Strong mineralized carbonate rock-bearing Pb-Zn-Cu-Ag-(Au) ores are well exposed on the Latong River area, Madina Regency, North Sumatra Province.
Bhakti Hamonangan Harahap, Hamdan Zainal Abidin, Wahyu Gunawan, Rum Yuniarni   +3 more
doaj   +1 more source

Study on the flotation technology and adsorption mechanism of galena–jamesonite separation

International Journal of Mining Science and Technology, 2015
In order to further separate the concentrate containing galena and jamesonite before undergoing hydrometallurgical process, flotation experiment was performed on the basis of mineralogical analysis.
Wei Sun, Haisheng Han, Hongbiao Tao, Runqing Liu   +3 more
doaj   +1 more source