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Effect of the Size of Tank and Impeller to the Liquid-Liquid Dispersion on Mechanical Agitation

TSUKIYAMA, SHUNICHI ; TAKAMURA, AKIRA

Chemical and Pharmaceutical Bulletin, 1975/03/25, Vol.23(3), pp.616-622 [Periódico revisado por pares]

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Título:
Effect of the Size of Tank and Impeller to the Liquid-Liquid Dispersion on Mechanical Agitation
Autor: TSUKIYAMA, SHUNICHI ; TAKAMURA, AKIRA
É parte de: Chemical and Pharmaceutical Bulletin, 1975/03/25, Vol.23(3), pp.616-622
Descrição: In this paper, it is purpose to study the effect of the size of tank and impeller to the liquid-liquid dispersion on mechanical agitation. Tank diameters used in this experiment are 150, 200 and 250 mm respectively. Then, every particle size is measured by a microscopic photograph method, and each mean surface-volume diameter is calculated and still more energy efficiency of agitation is required. So, the following results are obtained. (1) The values of agitation torque are almost same, though each size of tank diameter is different. (2) Relationship of specific interfacial area to agitation power is shown as next experimental equation. log SA=0.399 log P+3.376 log SB=0.386 log P+3.318 log SC=0.385 log P+3.262 S : specific interfacial area (cm2/g), P : agitation power (watt) A : 150mm of tank diameter, B : 200mm of tank diameter C : 250mm of tank diameter (3) The specific interfacial area becomes smaller as the size of tank diameter is increasing. When tank diameter is 200mm, the value of SB/SA is 0.876 at 1 watt and 0.825 at 100 watt. In the same way, when tank diameter is 250mm, the value of SC/SA is 0.770 at 1 watt and 0.720 at 100 watt.
Editor: Tokyo: The Pharmaceutical Society of Japan
Idioma: Inglês

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