Effects of Undersaturation on Crystal Size Distribution in Cooling Type Batch Crystallization

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Hiroshi Takiyama¹  Kayo Shindo¹  Masakuni Matsuoka¹ 

[1] Department of Chemical Engineering, Tokyo University of Agriculture and Technology

关键词: Batch Crystallization;    Undersaturation;    Crystal Size Distribution;   

DOI  :  10.1252/jcej.35.1072

来源: Maruzen Company Ltd

【 摘 要 】

References(10)Cited-By(13)In the cooling type batch crystallization, the influence of undersaturation operation on crystal size distribution was investigated, and the effectiveness of this operation was discussed. In batch crystallization with seeding, it was clear that undersaturation operations in the early stages of the cooling operation was effective in dissolving the micro-crystals which were generated by the initial bleeding, whereas undersaturation operations halfway through cooling was effective in dissolving the micro-crystals which were generated by attrition.From the results of applying this cooling temperature program to non-seeded batch crystallization, the design strategy of the temperature program for non-seeded operation was able to be determined. And it became clear that the crystal size distribution was improved by using undersaturation operations also in the case of non-seeded operation. This strategy of undersaturation operations was confirmed from measurement of crystal size distribution using an in-line sensor.

【 授权许可】

Unknown