Abstract
A eutectic formed between choline chloride and urea is shown to be a good solvent for the dissolution of a range of metal oxides. It is demonstrated that this ambient temperature ionic liquid can be applied to the processing of electric arc furnace dust. Zinc and lead can be selectively removed and subsequently electrowon from the liquid. This leaves the insoluble iron and aluminosilicates, which can be recycled through the electric arc furnace.
Get full access to this article
View all access options for this article.
References
1.
Fray
D. J.
and
Chen
G. Z.
Mater. Sci. Technol ., 2004 , 20 , 295 –300 .
2.
Fray
D. J.
: JOM , 2001 , 53 , 26 –31 .
3.
Cherginets
V.
: ‘Handbook of solvents ’, (ed.
Wypych
G.
), 1484-1496; 2001, Toronto , ChemTec Publishing .
4.
Welton
T.
: Chem . Rev ., 1999, 99 , 2071-2084.
5.
Wasserscheid
P.
and
Welton
T.
Ionic liquids in synthesis ’; 2003 , Weinheim , Germany, Wiley-VCH Verlag .
6.
Whitehead
J. A.
,
Lawrence
G. A.
and
McCluskey
A.
Green Chem ., 2004 , 6 , 313 .
7.
Thied
R. C.
,
Seddon
K. R.
,
Pitner
W. R.
and
Rooney
D.
World patent W099/41752, 1999.
8.
Abbott
A. P.
,
Capper
G.
,
Davies
D. L.
,
Rasheed
R. K.
and
Tambyrajah
V.
Novel Solvent Properties of Choline Chloride/ Urea Mixtures Chem. Commun ., 2003 , 7 , 70 –71 .
9.
Abbott
A. P.
,
Boothby
D.
,
Capper
G.
,
Davies
D. L.
, and
Rasheed
R. K.
J. Am. Chem. Soc ., 2004 , 126 , 9142 –9147 .
10.
Abbott
A. P.
,
Capper
G.
,
Davies
D. L.
,
Rasheed
R. K.
and
Shikotra
P.
Inorg. Chem ., 2005 , 44 , 6497 –6499 .
11.
Cherginets
V. L.
and
Khailova
E. G.
Electrochim. Acta , 1994 , 39 , 823 –829 .
12.
Abbott
A. P.
,
Capper
G.
,
Davies
D. L.
,
Munro
H.
,
Rasheed
R.
and
Tambyrajah
V.
Inorg. Chem ., 2004 , 43 , 3447 –3451 .
13.
Moyes
J.
: PCT Int. Appl. W02004081242, 2004.