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Statements

Subject Item
n2:RIV%2F60461373%3A22340%2F10%3A00023521%21RIV11-MSM-22340___
rdf:type
n5:Vysledek skos:Concept
dcterms:description
The undesired phenomenon of shrinkage cracking of compressible filter cakes during deliquoring by means of differential gas pressure is of great practical importance for the pharmaceutical industry. Once a cake cracks, a channel is formed and gas permeability increases significantly as the gas passes preferentially through the crack rather than the pores in the filter cake. This leads to a poor quality of deliquored cake. In this contribution we present the results of an experimental parametric study on cake cracking. The effects of the following parameters were studied at laboratory scale using a Nutsche filter: particle size distribution (PSD), filtration and deliquoring pressure, filter cake depth, pore size of filter medium and concentration of slurry. Our results from experiments with pressure and cake depth agree with published literature, and further experiments with filter medium and concentration show that the possibility exists to influence and possibly prevent filter cake cracking. The undesired phenomenon of shrinkage cracking of compressible filter cakes during deliquoring by means of differential gas pressure is of great practical importance for the pharmaceutical industry. Once a cake cracks, a channel is formed and gas permeability increases significantly as the gas passes preferentially through the crack rather than the pores in the filter cake. This leads to a poor quality of deliquored cake. In this contribution we present the results of an experimental parametric study on cake cracking. The effects of the following parameters were studied at laboratory scale using a Nutsche filter: particle size distribution (PSD), filtration and deliquoring pressure, filter cake depth, pore size of filter medium and concentration of slurry. Our results from experiments with pressure and cake depth agree with published literature, and further experiments with filter medium and concentration show that the possibility exists to influence and possibly prevent filter cake cracking.
dcterms:title
Experimental study of filter cake cracking during deliquoring Experimental study of filter cake cracking during deliquoring
skos:prefLabel
Experimental study of filter cake cracking during deliquoring Experimental study of filter cake cracking during deliquoring
skos:notation
RIV/60461373:22340/10:00023521!RIV11-MSM-22340___
n3:aktivita
n14:R
n3:aktivity
R
n3:dodaniDat
n10:2011
n3:domaciTvurceVysledku
n20:4022378
n3:druhVysledku
n18:D
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
258345
n3:idVysledku
RIV/60461373:22340/10:00023521
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Shrinkage; cracking; filtration; capillary; deliquoring
n3:klicoveSlovo
n6:capillary n6:cracking n6:Shrinkage n6:deliquoring n6:filtration
n3:kontrolniKodProRIV
[05D0784D3EE9]
n3:mistoKonaniAkce
Praha
n3:mistoVydani
Praha
n3:nazevZdroje
CHISA 2010
n3:obor
n7:CI
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n10:2010
n3:tvurceVysledku
Štěpánek, František Giorgio, Giovanni Eagles, Warren Barua, Ashok Ricard, Francois
n3:typAkce
n4:WRD
n3:zahajeniAkce
2010-01-01+01:00
s:numberOfPages
10
n16:hasPublisher
Process Engineering Publisher, Novosad, J.
n12:isbn
978-80-02-02210-7
n13:organizacniJednotka
22340