Filter cake washing: Partial dissolution of organic particles and real-time monitoring based on Raman spectroscopy

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Filter cake washing : Partial dissolution of organic particles and real-time monitoring based on Raman spectroscopy. / Louhi-Kultanen, Marjatta; Qu, Haiyan; Salmela, Nina; Kallas, Juha; Nyström, Lars.

julkaisussa: Separation and Purification Technology, Vuosikerta 59, Nro 3, 01.03.2008, s. 270-276.

Tutkimustuotos: Lehtiartikkeli

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Louhi-Kultanen, Marjatta ; Qu, Haiyan ; Salmela, Nina ; Kallas, Juha ; Nyström, Lars. / Filter cake washing : Partial dissolution of organic particles and real-time monitoring based on Raman spectroscopy. Julkaisussa: Separation and Purification Technology. 2008 ; Vuosikerta 59, Nro 3. Sivut 270-276.

Bibtex - Lataa

@article{90b704f8ae0f42e9881c26e33b04f368,
title = "Filter cake washing: Partial dissolution of organic particles and real-time monitoring based on Raman spectroscopy",
abstract = "The partial dissolution of crystalline material during filter cake washing can affect greatly on the cake permeability in separation and purification processes. Besides decreasing the cake thickness, the dissolving may cause changes in the cake structure as it may alter the particle size distribution based on the fact that different sized particles have different dissolution rates. This is especially the case if the cake consists of particles having a wide particle size distribution. The present work introduces a model based on mass transfer to predict the dissolution rates of crystalline material having different solubility in various washing liquors. The filtration system studied experimentally was ground sucrose filtered from ethanol solution. In addition, inline monitoring of the filtration and cake washing with a Raman spectrometer immersion probe was carried out. The studied impurity was cyclohexane. The measuring method allowed measuring of the ternary compound system: the impurity, the concentrations of the mother liquor and the solid in the filter cake.",
keywords = "Dissolution, Filter cake washing, Filterability, Purification",
author = "Marjatta Louhi-Kultanen and Haiyan Qu and Nina Salmela and Juha Kallas and Lars Nystr{\"o}m",
year = "2008",
month = "3",
day = "1",
doi = "10.1016/j.seppur.2007.06.017",
language = "English",
volume = "59",
pages = "270--276",
journal = "Separation and Purification Technology",
issn = "1383-5866",
publisher = "Elsevier Science B.V.",
number = "3",

}

RIS - Lataa

TY - JOUR

T1 - Filter cake washing

T2 - Partial dissolution of organic particles and real-time monitoring based on Raman spectroscopy

AU - Louhi-Kultanen, Marjatta

AU - Qu, Haiyan

AU - Salmela, Nina

AU - Kallas, Juha

AU - Nyström, Lars

PY - 2008/3/1

Y1 - 2008/3/1

N2 - The partial dissolution of crystalline material during filter cake washing can affect greatly on the cake permeability in separation and purification processes. Besides decreasing the cake thickness, the dissolving may cause changes in the cake structure as it may alter the particle size distribution based on the fact that different sized particles have different dissolution rates. This is especially the case if the cake consists of particles having a wide particle size distribution. The present work introduces a model based on mass transfer to predict the dissolution rates of crystalline material having different solubility in various washing liquors. The filtration system studied experimentally was ground sucrose filtered from ethanol solution. In addition, inline monitoring of the filtration and cake washing with a Raman spectrometer immersion probe was carried out. The studied impurity was cyclohexane. The measuring method allowed measuring of the ternary compound system: the impurity, the concentrations of the mother liquor and the solid in the filter cake.

AB - The partial dissolution of crystalline material during filter cake washing can affect greatly on the cake permeability in separation and purification processes. Besides decreasing the cake thickness, the dissolving may cause changes in the cake structure as it may alter the particle size distribution based on the fact that different sized particles have different dissolution rates. This is especially the case if the cake consists of particles having a wide particle size distribution. The present work introduces a model based on mass transfer to predict the dissolution rates of crystalline material having different solubility in various washing liquors. The filtration system studied experimentally was ground sucrose filtered from ethanol solution. In addition, inline monitoring of the filtration and cake washing with a Raman spectrometer immersion probe was carried out. The studied impurity was cyclohexane. The measuring method allowed measuring of the ternary compound system: the impurity, the concentrations of the mother liquor and the solid in the filter cake.

KW - Dissolution

KW - Filter cake washing

KW - Filterability

KW - Purification

UR - http://www.scopus.com/inward/record.url?scp=38849135634&partnerID=8YFLogxK

U2 - 10.1016/j.seppur.2007.06.017

DO - 10.1016/j.seppur.2007.06.017

M3 - Article

VL - 59

SP - 270

EP - 276

JO - Separation and Purification Technology

JF - Separation and Purification Technology

SN - 1383-5866

IS - 3

ER -

ID: 10772839