TY - JOUR
T1 - Solid separation from a mixed suspension through electric-field-enhanced crystallization
AU - Li, W.
AU - Radacsi, Norbert
AU - Kramer, Herman J M
AU - van der Heijden, A.E.D.M.
AU - terHorst, Joop H.
PY - 2016
Y1 - 2016
N2 - When applied to a pure component suspension in an apolar solvent, a strong inhomogeneous electric field induces particle movement, and the particles are collected at the surface of one of the two electrodes. This new phenomenon was used to separately isolate two organic crystalline compounds, phenazine and caffeine, from their suspension in 1,4-dioxane. First, crystals of both compounds were collected at different electrodes under the influence of an electric field. Subsequent cooling crystallization enabled the immobilization and growth of the particles on the electrodes, which were separately collected after the experiment with purities greater than 91%. This method can be further developed into a technique for crystal separation and recovery in complex multicomponent suspensions of industrial processes.
AB - When applied to a pure component suspension in an apolar solvent, a strong inhomogeneous electric field induces particle movement, and the particles are collected at the surface of one of the two electrodes. This new phenomenon was used to separately isolate two organic crystalline compounds, phenazine and caffeine, from their suspension in 1,4-dioxane. First, crystals of both compounds were collected at different electrodes under the influence of an electric field. Subsequent cooling crystallization enabled the immobilization and growth of the particles on the electrodes, which were separately collected after the experiment with purities greater than 91%. This method can be further developed into a technique for crystal separation and recovery in complex multicomponent suspensions of industrial processes.
KW - Crystal engineering
KW - Dielectrophoresis
KW - Electrophoresis
KW - Multicomponent mixtures
KW - Separation technology
UR - http://www.scopus.com/inward/record.url?scp=85002489660&partnerID=8YFLogxK
U2 - 10.1002/anie.201609832
DO - 10.1002/anie.201609832
M3 - Article
AN - SCOPUS:85002489660
SN - 1433-7851
VL - 55
SP - 16088
EP - 16091
JO - Angewandte Chemie (International Edition)
JF - Angewandte Chemie (International Edition)
IS - 52
ER -