Ultrafast electrophoresis of mineral particles

S. Bárány, Ya Babich, V. Madai

Research output: Contribution to journalArticle

Abstract

Ultrafast electrophoresis of the conductive minerals molybdenite and pyrite was studied by measuring the deviation of the particles from the sedimentation trajectory under a strong, pulsed electric field. It was shown that, as with previously studied fibers of ion-exchange resins and particles of graphite and activated carbon, the electrophoretic velocity was two orders of magnitude greater than the electrophoretic velocity characteristic for nonconductors. As the gradient of the external field and the particle size are increased, the electrophoretic velocity increases more rapidly than it would have been expected based on the Smoluchowski equation. This is in conflict with classical notions of electrophoresis, but well agrees with the Dukhin-Mushchuk theory of second-order electrophoresis.

Original languageEnglish
Pages (from-to)670-672
Number of pages3
JournalShuili Xuebao/Journal of Hydraulic Engineering
Issue number9
Publication statusPublished - 1998

Fingerprint

Electrophoresis
Minerals
electrokinesis
mineral
Ion Exchange Resins
Ion exchange resins
molybdenite
Graphite
Pyrites
Sedimentation
graphite
Activated carbon
activated carbon
electric field
resin
pyrite
ion exchange
Particle size
trajectory
Electric fields

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Oceanography
  • Water Science and Technology

Cite this

Ultrafast electrophoresis of mineral particles. / Bárány, S.; Babich, Ya; Madai, V.

In: Shuili Xuebao/Journal of Hydraulic Engineering, No. 9, 1998, p. 670-672.

Research output: Contribution to journalArticle

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