Dispersion of nano-particle clusters using mixed flow and high shear impellers in stirred tanks

Chemical Engineering Research and Design

Volumn 85, Issue 5 A, 2007, Pages 676-684

  Xie, L ^a   Rielly, C D ^a   Eagles, W ^b   Ozcan Taskin G ^b  

^a LOUGHBOROUGH UNIVERSITY   (United Kingdom)

^b BHR GROUP LIMITED   (United Kingdom)

Author keywords

De agglomeration; EkatoMizer sawtooth impeller; Energy dissipation; Mixing; Nano particle; Rotor stator

Indexed keywords

AGGLOMERATION; DISPERSIONS; ENERGY DISSIPATION; IMPELLERS; MIXING; WETTING;

COARSE DISPERSION; STIRRED TANKS; SURFACE AERATION;

NANOPARTICLES;

AGGLOMERATION; DISPERSIONS; ENERGY DISSIPATION; IMPELLERS; MIXING; NANOPARTICLES; WETTING;

EID: 34250801586     PISSN: 02638762     EISSN: None     Source Type: Journal    
DOI: 10.1205/cherd06195     Document Type: Conference Paper

References (16)

1. Bałdyga, J. and Bourne, J.R., 1994, Drop breakup in the viscous subrange: a source of possible confusion, Chem Eng Sci, 49: 1077-1078.
2. Bałdyga, J., 2006, Silica precipitation and precipitates/chemical aspects - literature review, PROFORM WP3, Interim Technical Note 3.1, Warsaw University of Technology.
3. Beck, K., 1998, Mechanisms of drop break-up in stirred vessels using a sawtooth impeller, PhD thesis, Cranfield University, School of Mechanical Engineering.
4. Depasse, J., 1997, Letter to the editor: Coagulation of colloidal silica by alkaline cations: surface dehydration or interparticle bridging? J Colloid and Interface Science, 194: 260-262.
5. Hansen, S. and Ottino, J.M., 1996, Agglomerate erosion: A nonscaling solution to the fragmentation equation, Phys Rev E, 53(4): 4209-4212.
6. Hansen, S., Khakhar, D.V and Ottino, J.M., 1998, Dispersion of solids in nonhomogeneous viscous flows, Chem Eng Sci 53(10): 1803-1817.
7. Hinze, J.O., 1955, Fundamentals of the hydrodynamics mechanism of splitting in a dispersion process, AlChE J, 1: 289-295.
8. Khan, F.R., Rielly, C.D. and Brown, D.A.R., 2006, Angle-resolved stereo-PIV measurements close to a down-pumping pitched-blade turbine, Chem Eng Sci, 61: 2799-2806.
9. Kolmogorov, A.N., 1941, The local structure of turbulence in compressible viscous fluid for very large Reynolds numbers, Doklady Akademii Nauk SSSR, 30: 301-305.
10. Özcan-Taşkin, G., Eagles, W., Clements, P., Xie, L. and Rielly, C.D., 2006, Suspension of fine particles in a liquid using stirred tanks, 12th Eur Conf on Mixing, Bologna, 27-30 June.
11. Podgórska, W. and Bałdyga, J., 2002, Effect of structure of turbulence on drop breakage, Chemical Papers-Chemicke Zvesti, 56: 412-417.
12. Pope, S.B., 2000, Turbulent Flows, 258-259 (Cambridge University Press, Cambridge, UK).
13. Schlomach, J. and Kind, M., 2004, Investigations on the semi-batch precipitation of silica, J Colloid and Interface Science, 277: 316-326.
14. Wu, H. and Patterson, G.K., 1989, Laser-Doppler measurements of turbulent flow parameters in a stirred mixer, Chem Eng Sci, 44: 2207-2221.
15. Zhou, G. and Kresta, S.M., 1996, Distribution of energy between convective and turbulent flow for three frequently used impellers, Trans lChemE, 74A: 379-389.
16. Zhou, G. and Kresta, S.M., 1998, Correlation of mean drop size and minimum drop size with the turbulence energy dissipation and the flow in an agitated tank, Chem Eng Sci, 53: 2063-2079.