Yield stress of phosphate rock slurries for gravity thickening

Hartley, J.A., Leong, Y.K., and Nott, M.C. (2004) Yield stress of phosphate rock slurries for gravity thickening. In: Proceedings of Chemeca 2004 the 32nd Australasian Chemical Engineering Conference. From: Chemeca 2004 the 32nd Australasian Chemical Engineering Conference, 26 - 29 September 2004, Sydney, NSW, Australia.

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Abstract

Ground phosphate rock slurries are first concentrated in a gravity thickener before being store in large tanks for subsequent conversion to phosphoric acid via reaction with sulphuric acid. Phosphate rock from various parts of the mine in Phosphate Hill formed thickened slurries that displayed quite different yield stress property. With some of these slurries pumping and processing problems were encountered because the yield stress was too high. In this study the yield stress behaviour of phosphate rock slurries from various part of the mine was characterised as a function of solids concentration. Surface chemistry and Particle size distribution effects were also evaluated.

Item ID: 7594
Item Type: Conference Item (Refereed Research Paper - E1)
ISBN: 978-1-877040-12-2
Date Deposited: 12 Apr 2010 23:19
FoR Codes: 03 CHEMICAL SCIENCES > 0306 Physical Chemistry (incl Structural) > 030603 Colloid and Surface Chemistry @ 100%
SEO Codes: 86 MANUFACTURING > 8615 Instrumentation > 861503 Scientific Instruments @ 70%
86 MANUFACTURING > 8610 Ceramics, Glass and Industrial Mineral Products > 861099 Ceramics, Glass and Industrial Mineral Products not elsewhere classified @ 30%
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