AGGLOMERATION GIBBSITE AL(OH)(3) CRYSTALS IN BAYER LIQUORS - INFLUENCE OF THE PROCESS PARAMETERS

Authors
SEYSSIECQ I VEESLER S BOISTELLE R LAMERANT JM
Citation
I. Seyssiecq et al., AGGLOMERATION GIBBSITE AL(OH)(3) CRYSTALS IN BAYER LIQUORS - INFLUENCE OF THE PROCESS PARAMETERS, Chemical Engineering Science, 53(12), 1998, pp. 2177-2185
Citations number
19
Categorie Soggetti
Engineering, Chemical
Journal title
Chemical Engineering Science → ACNP
ISSN journal
00092509
Volume
53
Issue
12
Year of publication
1998
Pages
2177 - 2185
Database
ISI
SICI code
0009-2509(1998)53:12<2177:AGACIB>2.0.ZU;2-#
Abstract
Agglomeration of gibbsite (Al(OH)(3)) crystals is an important stage o f the Bayer process. In the present study, using a crystallizer workin g at constant supersaturation with time, we determine the agglomeratio n kinetics of gibbsite as a function of different experimental paramet ers. The effect of the crystallization temperature, supersaturation, s eed mass, stirring rate and seed size is investigated. An interpretati on of the results is proposed, they are also compared with previous re sults drawn from the literature. (C) 1998 Elsevier Science Ltd. All ri ghts reserved.