Results 11 to 20 of about 2,528 (185)

Zn-Pb-Cu sulfide-bearing glacial sandstone erratics near Raahe on the western coast of Finland: Indicators of Paleozoic base metal mineralization at the bottom of the Bothnian Bay [PDF]

Bulletin of the Geological Society of Finland, 2019
Over the past tens of years, glacial sandstone erratics variably enriched in Zn, Pb and Cu have been collected from the coast south of Raahe, but their source has remained ambiguous.
Eero Hanski, Hannu Huhma, Yann Lahaye, Juha Pekka Lunkka, Erik Nilsson, Timo Mäki, Hugh O´Brien, Kari Strand   +7 more
doaj   +1 more source

PROFESSIONAL COMPETENCE DEVELOPMENT FOR ADAPTED PHYSICAL EDUCATION

Педагогически форум, 2019
The children with special educational needs are educated in a friendly environment in kindergarden and in primary school icluding during gym classes.
Galena Terzieva
doaj   +1 more source

Strategies for Pan-European Implementation of Blended Learning for Innovation and Entrepreneurship (I&E) Education

Education Sciences, 2019
New information and communication technologies (ICTs) provide educators and learners with novel approaches to enhance teaching and learning processes. Technology enabled learning plays a vital role in contemporary education and blended learning is widely
Galena Pisoni
doaj   +1 more source

Bioleaching of Indonesian Galena Concentrate With an Iron- and Sulfur-Oxidizing Mixotrophic Bacterium at Room Temperature

Frontiers in Microbiology, 2020
Biohydrometallurgy is believed to be a promising future study field for the recovery of lead (Pb) from ores/concentrates since the pyrometallurgical/hydrometallurgical processes have been largely applied to recover Pb to date, which operates at high ...
Siti Khodijah Chaerun, Siti Khodijah Chaerun, Edina Amadea Putri, Mohammad Zaki Mubarok   +3 more
doaj   +1 more source

TANE ŞEKLİNİN GALEN CEVHERİNİN FLOTASYONUNA VE TOPAKLANMASINA ETKİSİ

Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2022
Farklı şekil faktörlerine sahip tanelerle yürütülen flotasyon çalışmalarında daha köşeli tanelerin yuvarlak tanelere nazaran daha yüksek verimle kazanıldığı bilinmektedir.
Turan Uysal, Onur Güven
doaj   +1 more source

Influence of Temperature and Potential on the Electrochemical Dissolution of Galena in HNO3 at pH 2.0

International Journal of Electrochemical Science, 2017
We investigated the influence of temperature and add potential on the electrochemical dissolution of galena in HNO3 at pH 2.0. Potentiodynamic curves showed galena different electrochemical reaction states. From OCP to 160 mV (vs.
Qingyou Liu, Guoheng Jin, Kai Zheng, Xiaoying Wen, Heping Li   +4 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

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

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

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