Agglomeration gibbsite Al(OH)3 crystals in Bayer liquors.: Influence of the process parameters

被引：59

作者：

Seyssiecq, I

Veesler, S

Boistelle, R

Lamerant, JM

机构：

[1] CNRS, Ctr Rech Mecanismes Croissance Cristalline, F-13288 Marseille 09, France

[2] Aluminium Pechiney, Direct Rech Dev, F-13541 Gardanne, France

来源：

CHEMICAL ENGINEERING SCIENCE | 1998年 / 53卷 / 12期

关键词：

Gibbsite agglomeration; temperature; supersaturation; seed mass; seed size; stirring rate;

D O I：

10.1016/S0009-2509(98)00032-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Agglomeration of gibbsite (Al(OH)(3)) crystals is an important stage of the Bayer process. In the present study, using a crystallizer working at constant supersaturation with time, we determine the agglomeration kinetics of gibbsite as a function of different experimental parameters. The effect of the crystallization temperature, supersaturation, seed mass, stirring rate and seed size is investigated. An interpretation of the results is proposed, they are also compared with previous results drawn from the literature. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2177 / 2185

页数：9

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