Electronic Supplementary Information

Electronic Supplementary Material (ESI) for RSC Advances.
This journal is © The Royal Society of Chemistry 2016
Electronic Supplementary Information
Separation of highly unsaturated fatty acids methyl
esters from model bio-oils with ionic liquid-cosolvent as
extractants
Xuenan Li,a Xiao Zhang,a Qiwei Yang,a Zongbi Bao,a Qilong Ren,a Zhiguo Zhang,a
Huabin Xing,a Yiwen Yang a,*
a
Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of
Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
*To whom correspondence should be addressed:
Telephone : +86-571-87951224.
Fax: +86-571-87952773
E-mail address: [email protected]
S1
Table S1. The structures of all the ionic liquids used in this work
Abbreviation
Name
Cation
Anion
Purity
O
[EMIm][(EtO)2PO2]
[EMIm][Ac]
[EMIm][Ala]
[EMIm][CF3SO3]
1-ethyl-3-methyllimidazolium
N
O P O
N
99%
O
diethylphosphate
1-ethyl-3-methyllimidazolium
O
N
N
99%
acetate
O
1-ethyl-3-methyllimidazolium
O
N
N
alanine
H2N
1-ethyl-3-methyllimidazolium
N
99%
O
O
F 3C S O
O
N
trifluoromethanesulfonate
99%
N
[EMIm][C(CN)3]
1-ethyl-3-methyllimidazolium
N
N
tricyanomethanide
99%
C
N
N
N
[EMIm][N(CN)2]
[EMIm][SCN]
1-ethyl-3-methylimidazolium
N
N
N
N
N
N
dicyanamide
1-ethyl-3-methylimidazolium
S
N
thiocyanate
99%
99%
F
[EMIm][BF4]
[EMIm][NO3]
[EMIm][CF3COO]
1-ethyl-3-methyllimidazolium
N
N
tetrafluoroborate
B
F
F
99%
F
1-ethyl-3-methylimidazolium nitrate
1-ethyl-3-methyllimidazolium
N
N
N
N
trifluoroacetate
NO3
99%
O
F3C
99%
O
O
[EMIm][NTf2]
1-ethyl-3-methylimidazolium
N
bis((trifluoromethyl)sulfonyl)imide
N
O
N
S
S
CF3
F3C
OO
O
[Bpy][NTf2]
N-butylpyridinium
bis((trifluoromethyl)sulfonyl)imide
S2
N
O
N
S
S
CF3
F3C
OO
99%
99%
O
[BMPrr][NTf2]
1-butyl-1-methylpyrrolidinium
O
N
S
S
CF3
F3C
OO
N
bis((trifluoromethyl)sulfonyl)imide
1-(2-ethoxyl)-3-methylimidazolium
N
N
OH
[HOEMIm][NTf2]
bis((trifluoromethyl)sulfonyl)imide
3-(2-methoxyethyl)-1-methyl-1H-im
[MeOEMIm][NTf2]
N
OCH3
N
idazol-3-iumbis((trifluoromethyl)sul
O
N
S
S
CF3
F3C
OO
99%
O
O
N
S
S
CF3
F3C
OO
99%
O
99%
fonyl)imide
O
1-cyanopropyl-3-methylimidazolim
N
N
CN
[CNPMIm][NTf2]
bis((trifluoromethyl)sulfonyl)imide
1-carboxyethyl-3-methylimidazolim
N
COOH
N
[HOOCEMIm][NTf2]
O
N
S
S
CF3
F3C
OO
O
N
S
S
CF3
F3C
OO
99%
O
99%
bis((trifluoromethyl)sulfonyl)imide
1-benzyl-3-methylimidazolim
N
O
O
N
S
S
CF3
F3C
OO
N
[BnMIm][NTf2]
bis((trifluoromethyl)sulfonyl)imide
O
1-allyl-3-methylimidazolim
N
O
N
S
S
CF3
F3C
OO
99%
N
[AMIm][NTf2]
bis((trifluoromethyl)sulfonyl)imide
O
1-dodecyl-3-methylimidazolim bis((
[C12MIm][NTf2]
trifluoromethyl)sulfonyl)imide
S3
N
N
5
O
N
S
S
CF3
F3C
OO
99%
99%
(a)
(b)
Fig. S1. Effect of the feed solvent on the selectivity (a) and distribution coefficient (b).
The initial concentration of FAMEs in feed solvent was 40 mg/mL. Volume ratio of feed
and extraction solvent was 1:1. The extraction temperature was 30℃.
S4

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