Publication result detail

Elementary characterizations of lignite-water suspension by means of analytical centrifuge

DOSKOČIL, L.; MACHÁČKOVÁ, M.; PEKAŘ, M.

Original Title

Elementary characterizations of lignite-water suspension by means of analytical centrifuge

English Title

Elementary characterizations of lignite-water suspension by means of analytical centrifuge

Type

Abstract

Original Abstract

For characterization of suspension, analytical centrifuge (LUMiSizer) was chosen. Suspension properties are changed owing to milling time. The higher milling time, the higher stability of dispersion. The evolution of the transmission profiles is characterized by a zone sedimentation (the particles sediment as a collective). A gradual clarification of fine fraction is observed, which is not part of the network structure. From the rheological behaviour, shear thickening and breakdown of network structure can be predicted based on the dependence of sedimentation velocity on relative centrifugal force. Further, the sedimentation behaviours were investigated as a function of solids concentration and the particle size analysis was carried out.

English abstract

For characterization of suspension, analytical centrifuge (LUMiSizer) was chosen. Suspension properties are changed owing to milling time. The higher milling time, the higher stability of dispersion. The evolution of the transmission profiles is characterized by a zone sedimentation (the particles sediment as a collective). A gradual clarification of fine fraction is observed, which is not part of the network structure. From the rheological behaviour, shear thickening and breakdown of network structure can be predicted based on the dependence of sedimentation velocity on relative centrifugal force. Further, the sedimentation behaviours were investigated as a function of solids concentration and the particle size analysis was carried out.

Keywords

lignite, analytical centrifuge, suspension

Key words in English

lignite, analytical centrifuge, suspension

Authors

DOSKOČIL, L.; MACHÁČKOVÁ, M.; PEKAŘ, M.

RIV year

2013

Released

18.06.2012

ISBN

0009-2770

Periodical

CHEMICKE LISTY

Volume

106

Number

6

State

Czech Republic

Pages from

534

Pages to

534

Pages count

1

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@misc{BUT92603,
  author="Leoš {Doskočil} and Mirka {Macháčková} and Miloslav {Pekař}",
  title="Elementary characterizations of lignite-water suspension by means of analytical centrifuge",
  year="2012",
  journal="CHEMICKE LISTY",
  volume="106",
  number="6",
  pages="534--534",
  issn="0009-2770",
  note="Abstract"
}