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CLASS 1 EUROINVENT 2010 CLASA 1
1.10.
Title EN
Chemical conversion to PET containers, and stone flooring
and asphalt views
Authors Amin Abshar, Behnam Zamani, Elaheh Farhoodi
Institution Institute for Support of Iranian Researchers, Inventors & Innovators
Patent no. Pending
Description
EN
Chemical conversion to PET containers, and stone flooring
and asphalt views
1.11.
Separation procedure of metal ions with high toxic potential
Title EN
by extraction in aqueous two-phase systems
Authors Bulgariu Laura 1 , Bulgariu Dumitru 2,3
1
University „Gheorghe Asachi” of Iaşi, Faculty of Chemical
Engineering and Environmental Protection,
Institution 2
„Al.I.Cuza” University of Iaşi, Faculty of Geography and Geology
3
Romanian Academy, Iaşi
Patent no.
Description
EN
Pending
The invention relates to the description of extraction
procedure in aqueous two-phase systems formed by a
polymer (polyethylene glycol with molecular mass of 1550)
and an inorganic salt. The use of aqueous polyethylene
glycol–inorganic salt two-phase systems for the extraction of
metal ions has a great potential due to their durability, nontoxicity
and relative low cost.Such extraction systems can be
used for selective or group separation of metal ions with high
toxic potential (Hg(II), Pb(II), Bi(III), Cd(II) etc.), in
presence of halide extractants. The procedure described in
this invention included: (i) the methodology for preparation
of aqueous two-phase systems preparation: type and
characteristics (concentration, pH) of phase-forming salts,
optimum concentration of polymer, mixing ratio of the
phases and contact time; (ii) type and concentration of
extractants; (iii) the experimental condition for the extraction
of each metal ion; (iv) the yield, selectivity and
implementing limits of the extraction procedure.
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