Estimating average particle size by focused beam reflectance measurement (FBRM)

A.R. Heath; P.D. Fawell; P.A. Bahri; J.D. Swift

doi:10.1002/1521-4117(200205)19:2<84::AID-PPSC84>3.0.CO;2-1

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Estimating average particle size by focused beam reflectance measurement (FBRM)

Journal article

Peer reviewed

Estimating average particle size by focused beam reflectance measurement (FBRM)

A.R. Heath, P.D. Fawell, P.A. Bahri and J.D. Swift

Particle & Particle Systems Characterization, Vol.19(2)

2002

DOI: https://doi.org/10.1002/1521-4117(200205)19:2<84::AID-PPSC84>3.0.CO;2-1

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Abstract

The Lasentec focused beam reflectance measurement (FBRM) probe provides in situ particle characterisation over a wide range of suspension concentrations. This is a significant advantage over conventional instruments that require sampling and dilution. However, FBRM gives a chord distribution, rather than a conventional diameter distribution. Both theoretical and empirical methods for converting from chord to diameter data are available, but the empirical method was found to be more successful. The FBRM response has been compared to conventional particle sizing techniques (laser diffraction and electrical sensing zone) for a range of sieved aluminium or calcite suspensions. The mode average of the square-weighted chord length was found to be comparable to other sizing techniques over the range from 50 to 400 μm. The square-weighted FBRM results were essentially unaffected by changes to the instrument focal position, the suspension fluid flow velocity, or the solid fraction in the range 0.1-20% w/v.

Details

Title: Estimating average particle size by focused beam reflectance measurement (FBRM)
Authors/Creators: A.R. Heath (Author/Creator)
P.D. Fawell (Author/Creator)
P.A. Bahri (Author/Creator)
J.D. Swift (Author/Creator)
Publication Details: Particle & Particle Systems Characterization, Vol.19(2)
Identifiers: 991005541979507891
Murdoch Affiliation: Parker Cooperative Research Centre for Integrated Hydrometallurgy Solutions; School of Engineering Science
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 2 Chemistry; 2.176 Drug Delivery Chemistry; 2.176.878 Cocrystals
Web Of Science research areas: Chemistry, Physical; Materials Science, Multidisciplinary; Nanoscience & Nanotechnology
ESI research areas: Materials Science