Results 21 to 30 of about 13,713 (230)

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

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

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

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

Geological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia, Ryohei Takahashi, Andrea Agangi, Pearlyn Manalo, Hinako Sato   +4 more
wiley   +1 more source

Antimony Extraction from Galena Concentrates

Materials Proceedings, 2022
The extraction of antimony and arsenic from galena concentrates by leaching with strongly alkaline sodium sulphide solution are investigated. The effects of leaching parameters including sodium sulphide and sodium hydroxide concentrations in the leaching
Rafaella Aikaterini Megaloudi, Apostolos Kourtis, Paschalis Oustadakis, Evangelos Tzamos, Dimitrios Dimitriadis, Anthimos Xenidis   +5 more
doaj   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

APLIKASI METODE GEOLISTRIK RESISTIVITAS KONFIGURASI DIPOLE-DIPOLE UNTUK IDENTIVIKASI POTENSI SEBARAN GALENA (PBS) DAERAH-X, KABUPATEN WONOGIRI

Jurnal Fisika Flux, 2014
ABSTRAK. Telah dilakukan penelitian identifikasi potensi galena menggunakan metode geolistrik resistivitas konfigurasi dipole-dipole di Daerah-X, Kabupaten Wonogiri, Jawa Tengah.
Satria Kinayung, Darsono Darsono, Budi Legowo   +2 more
doaj   +1 more source