EVALUATION OF CRYSTAL SIZE DISTRIBUTION ENLARGEMENT IN A MULTISTAGE COLUMN CRYSTALLIZER

被引：9

作者：

FARMER, RW ^{[1
]}

BECKMAN, JR ^{[1
]}

机构：

[1] ARIZONA STATE UNIV,DEPT CHEM & BIOENGN,TEMPE,AZ 85787

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1991年 / 30卷 / 01期

关键词：

ALUMINA-TRIHYDRATE CRYSTALLIZATION; COAGULATION; MECHANISMS; KINETICS;

D O I：

10.1021/ie00049a029

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Enlargement of product size in a staged column crystallizer was investigated for precipitation of sparingly soluble salts. Precipitation of barium sulfate was employed to examine the effects of the number of stages, production rate, and impeller speed. The number of stages exerted the most dramatic effect on product size; increases in the volume-average size by a factor of 2 were observed in a five-stage column, as compared to product from an equal-volume MSMPR crystallizer. Population balance analysis indicated that this size increase coincided with an order of magnitude increase in calculated agglomeration efficiency.

引用

页码：196 / 201

页数：6

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