C<sub>D</sub>- N<sub>Rep</sub> Relationship for Solid-Liquid Suspensions - Volume 1 Number 1 (Jun. 2010) - IJCEA
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    • ISSN: 2010-0221
    • Frequency: Bimonthly
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Prof. Dr. Shen-Ming Chen
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Editor-in-chief
Prof. Dr. Shen-Ming Chen
National Taipei University of Technology, Taiwan
 

IJCEA 2010 Vol.1(1): 10-14  ISSN: 2010-0221
DOI: 10.7763/IJCEA.2010.V1.2

CD- NRep Relationship for Solid-Liquid Suspensions

Manik P. Deosarkar, Vivek S. Sathe and Kartik Chandra Ghanta

Abstract—The present study is to observe settling characteristics of magnetite ore suspensions in aqueous Carboxy Methyl Cellulose (CMC) solutions of varying concentrations and to develop CD – NRep relationship for the same. The suspensions having varied average particle size of 50 to 74.8 μm and concentration of 10 to 30 % (by weight) were considered. GALAI-CIS-I particle size analyzer was used to determine the average particle size and viscosity of the suspending medium was determined by using Brookfield DV-III+ programmable rheometer. Settling tests were carried out in 50 cc graduated glass cylinder of internal diameter 2.3 cm. Effects of concentrations of dispersant and solid and average particle size of the solids were carefully investigated. It has been observed that, with increase in concentration of dispersant and solids in the suspension it’s settling speed decreases. With increase in average particle size of the solids the velocity of suspension settling increases rapidly. Finally the CD – NRep relationship was derived for all the suspension studied by curve fitting of the experimental data and was found well in line with the well known Stoke`s Law.

Index Terms— dispersant, suspension, terminal settling velocity, drag coefficient

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Cite: Manik P. Deosarkar, Vivek S. Sathe and Kartik Chandra Ghanta, "CD- NRep Relationship for Solid-Liquid Suspensions," International Journal of Chemical Engineering and Applications vol. 1, no. 1, pp. 10-14, 2010.

 

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