TY  - JOUR
N2  - The mass transfer of europium(III) from an aqueous to an organic phase was studied in a quartz microchannel (internal diameter of 200??m) using a novel micro Laser Induced Fluorescence (micro-LIF) technique. Europium(III) was extracted from a 1?M nitric acid solution into an organic solution of TBP(1.2?M)/CMPO(0.2?M) in Exxsol D80. For the flow rates investigated plug flow was established. An experimental and data processing methodology was developed to calculate concentration profiles from the fluorescing light intensity profiles in both phases at different locations along the microchannel. In particular, the effect that the high light intensity of the organic phase has on the measurements in the aqueous phase was taken into account. Mass transfer was found to be significant in the beginning of the channel close to the inlet (1?mm distance) with extraction percentages varying between 20 and 40% depending on the total flow rate. High extraction efficiency (?80%) was achieved at short residence times (in the first 6?s), while the overall volumetric mass transfer coefficients varied between 0.05 and 3.3?s?1.
ID  - discovery10075999
UR  - https://doi.org/10.1016/j.cej.2019.04.084
SN  - 1385-8947
JF  - Chemical Engineering Journal
A1  - Angeli, P
A1  - Tsaoulidis, D
A1  - Hashi Weheliye, W
KW  - Mass transfer
KW  -  micro-LIF
KW  -  Europium(III)
KW  -  Microchannel
KW  -  Liquid-Liquid
TI  - Studies on mass transfer of europium(III) in micro-channels using a micro Laser Induced Fluorescence technique
AV  - public
VL  - 372
SP  - 1154
Y1  - 2019/09/15/
EP  - 1163
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
ER  -