Ultrafast electrophoresis of mineral particles

Research output: Contribution to journalArticle

2 Citations (Scopus)

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-Mishchuk theory of second-order electrophoresis.

Original languageEnglish
Pages (from-to)670-672
Number of pages3
JournalColloid Journal
Volume60
Issue number6
Publication statusPublished - 1998

Fingerprint

electrophoresis
Electrophoresis
Minerals
minerals
Ion Exchange Resins
ion exchange resins
electrical insulation
Ion exchange resins
Graphite
Pyrites
pyrites
activated carbon
Sedimentation
Activated carbon
graphite
Particle size
Electric fields
Trajectories
trajectories
deviation

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

Ultrafast electrophoresis of mineral particles. / Bárány, S.

In: Colloid Journal, Vol. 60, No. 6, 1998, p. 670-672.

Research output: Contribution to journalArticle

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