Results 1 to 10 of about 920 (66)

Leaching of rare earth elements from bastnasite ore (second part) / Выщелачивание редкоземельных элементов из пород, содержащих фторкарбонаты – вторая часть / Rastvaranje elemenata retkih zemalja iz ruda koje sadrže fluorokarbonatni mineral - drugi deo [PDF]

open access: yesVojnotehnički Glasnik, 2019
Dissolution of rare earth elements from bastnasite ore was studied using different leaching agents such as sulfuric acid, hydrochloric acid, acetic acid, citric acid and sodium hydroxide at 70°C, with 1mol/L, solid/liquid ratio of 0.05 between 30 and ...
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

Leaching of rare earth elements with sulfuric acid from bastnasite ores / Выщелачивание редкоземельных металлов серной кислотой из пород, содержащих фторкарбонаты / Rastvaranje elemenata retkih zemalja sumpornom kiselinom iz ruda koje sadrže fluorokarbonatni mineral [PDF]

open access: yesVojnotehnički Glasnik, 2018
Dissolution of rare earth elements from bastnasite ores was studied using sulfuric acid at the atmospheric pressure. The one step strategy with sulfuric acid was studied further and the results showed that filtering difficulties do not happen for the ...
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

Abudance of lanthanoids and actinoids in different soil types in Serbia and potential of fungi Macrolepiota procera (scop.) singer for their accumulation [PDF]

open access: yes, 2021
U okviru ove doktorske disertacije određena je zastupljenost lantanoida, skandijuma i itrijuma (elementi retkih zemalja), urana i torijuma (prirodno najzastupljenijih aktinoida) kao i određenih mikroelemenata (olova, vanadijuma, rubidijuma i srebra) u ...
Stanković, Vesna
core   +3 more sources

Elementi retkih zemalja - itrijum i više biljke [PDF]

open access: yes, 2010
Rare earth elements (REEs) form a chemically uniform group with very similar physical and chemical properties. The REEs include the elements scandium, yttrium, and the lanthanides from lanthanum to lutetium. They are widely distributed and present in all
Kastori, Rudolf   +3 more
core   +2 more sources

Agroterrorism as a current challenge [PDF]

open access: yes, 2010
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Andrejić Marko   +3 more
core   +1 more source

Reduction of the matrix effects in the gold and silver analysis using the ICP-MS technique [PDF]

open access: yes, 2022
Inductively coupled plasma mass spectrometry (ICP-MS) has been an indispensable technique in the analysis of geological samples in the last few decades.
Adamović Dragana   +6 more
core   +1 more source

Geochemical characteristics of samples with dominant presence of alunites from the Lece-Radan volcanic complex (Serbia) [PDF]

open access: yes, 2022
The study represents the composition of minor elements, including rare earth elements (REE) in six selected samples with a dominant alunite content (>50%), having a significant correlation between them.
Poznanović-Spahić, Maja   +2 more
core  

Temperature dependence of luminescence inorganic phosphors doped with rare earth ions [PDF]

open access: yes, 2013
Fosfori na bazi retkih zemalja predstavljaju važnu grupu materijala koja nalazi primenu u medicinskoj tomografiji, fizici visoke energije, proizvodnji scintilatora, lampi i displeja [1] .
Nikolić, Marko G.
core   +1 more source

Korišćenje genetskih podataka u pravu osiguranja [PDF]

open access: yes, 2023
Sve niže cene sprovođenja genetskih testiranja i dobijanja genetskih podataka ponovo dovode u fokus njihovo korišćenje od osiguravajućih društava. U tom smislu, značajna su dva pitanja iz perspektive prava osiguranja.
Glintić, Mirjana
core   +1 more source

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