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The Influence of Cl-, SO4 and (PO4)3- Ions on Microfiltration of Titanium Dioxide Dispersions
Authors: Velikovská Pavlína | Mikulášek Petr
Year: 2006
Type of publication: ostatní - přednáška nebo poster
Name of source: Proceedings of 33rd International Conference of Slovak Society of Chemical Engineering
Publisher name: Slovak Society of Chemical Engineering
Place:
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Titles:
Language Name Abstract Keywords
cze The Influence of Cl-, SO4 and (PO4)3- Ions on Microfiltration of Titanium Dioxide Dispersions In this paper the influences of pH and ionic strength on ceramic membrane microfiltration of TiO2 suspensions were studied. A series of crossflow microfiltration experiments were carried out at various pH values, ionic strengths and with various multivalent inorganic salts. Filtration behaviours were analyzed based on measurements of zeta potential of alumina membrane and TiO2 particle and particle size distribution of the TiO2 suspension. Results showed that inorganic anions affect the microfiltration of TiO2 suspension by changing the surface properties of both the alumina membrane and TiO2 particle. The solution environments affect the dispersion of TiO2 particles and played a major role in the filtration flux. The filtration behaviours were analyzed based on measurements of the permeate flux as a function of pH, various inorganic salts, and salt concentration. Special attention was given to the study of these parameters on the separation efficiency. mikrofiltrace;disperze TiO2;vliv iontů
eng The Influence of Cl-, SO4 and (PO4)3- Ions on Microfiltration of Titanium Dioxide Dispersions In this paper the influences of pH and ionic strength on ceramic membrane microfiltration of TiO2 suspensions were studied. A series of crossflow microfiltration experiments were carried out at various pH values, ionic strengths and with various multivalent inorganic salts. Filtration behaviours were analyzed based on measurements of zeta potential of alumina membrane and TiO2 particle and particle size distribution of the TiO2 suspension. Results showed that inorganic anions affect the microfiltration of TiO2 suspension by changing the surface properties of both the alumina membrane and TiO2 particle. The solution environments affect the dispersion of TiO2 particles and played a major role in the filtration flux. The filtration behaviours were analyzed based on measurements of the permeate flux as a function of pH, various inorganic salts, and salt concentration. Special attention was given to the study of these parameters on the separation efficiency. microfiltration;titanium dioxide dispersion;ionts

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