Journal
POWDER TECHNOLOGY
Volume 130, Issue 1-3, Pages 35-40Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0032-5910(02)00222-X
Keywords
wetting; attrition; particle design
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Significant advances have been made in the last decade to quantify the process of wet granulation. The attributes of product granules from the granulation process are controlled by a combination of three groups of processes occurring in the granulator (1) wetting and nucleation, (2) growth and consolidation and (3) breakage and attrition. For the first two of these processes, the key controlling dimensionless groups are defined and regime maps are presented and validated with data from tumbling and mixer granulators. Granulation is an example of particle design. For quantitative analysis, both careful characterisation of the feed formulation and knowledge of operating parameters are required. A key thesis of this paper is that the design, scaleup and operation of granulation processes can now be considered as quantitative engineering rather than a black art. (C) 2002 Elsevier Science B.V. All rights reserved.
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