2011 - Europe Direct Iasi
2011 - Europe Direct Iasi
2011 - Europe Direct Iasi
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R.30.<br />
Title<br />
Authors<br />
Institution<br />
Description<br />
EUROINVENT <strong>2011</strong><br />
benzimidazole, under both classical heating and MW<br />
irradiation conditions.<br />
Applications:<br />
Dialkylimidazolium salts represent a class of ionic<br />
compounds with melting points lower than 100°C so<br />
called “ionic liquids”.<br />
The past decade has seen explosive growth of studies on<br />
ionic liquids for their diverse applications as catalyst,<br />
liquid crystals, green solvent in organic synthesis, and in<br />
separations, electrochemistry, photochemistry, CO2<br />
storage devices, etc. Ionic liquids have some unique<br />
characteristics including negligible volatility, nonflammability,<br />
high thermal stability, low melting point,<br />
broad liquid range, and controlled miscibility with organic<br />
compounds, which meets the demands of high<br />
performance lubricant.<br />
The method for separating silver from dumps and alluvial<br />
deposits<br />
Brânzilă Mihai 1 , Bulgariu Dumitru 1,3 , Sandu Ioan 2 , Florea<br />
Florin 4<br />
1 ”Al. I. Cuza” University of <strong>Iasi</strong>, Faculty of Geography and<br />
Geology, 2 ”Al. I. Cuza” University of <strong>Iasi</strong>, Arheoinvest<br />
Interdisciplinary Platform, 3 Romanian Academy, Filial of<br />
<strong>Iasi</strong> 3 Romanian Academy, Filial of <strong>Iasi</strong>, Collective of<br />
Geography, 4 SC Geomold SA Câmpulung Moldovenesc<br />
The invention relates to a method for separating silver<br />
from the tailings and alluvial deposits based on a<br />
combination of tradition squential solid-liquid extraction<br />
with the extraction in aqueous ecological polymerinorganic<br />
salt two-phase systems. The method can be<br />
utilized for the separation of silver from dumps of the<br />
exploitation of various deposits of polymetallic ores and<br />
from alluvial deposits, where the average content of silver<br />
is below the limit imposed by the existing technological<br />
processes of extraction of silver. Compared with other<br />
current methods of extraction of silver, applied on an<br />
industrial scale, the method presented in this patent has<br />
several advantages: (i) allows recovery of silver from poor<br />
deposits (considered economically insignificant compared<br />
to current technologies) in acceptable economic and<br />
Innovative Researches<br />
155
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