Crystallization of potash alum: effect of power ultrasound

被引：110

作者：

Amara, N ^{[1
]}

Ratsimba, B ^{[1
]}

Wilhelm, AM ^{[1
]}

Delmas, H ^{[1
]}

机构：

[1] ENSIGC, INPT, UPS, CNRS,UMR 5503,Lab Chim Chim, F-31078 Toulouse, France

来源：

ULTRASONICS SONOCHEMISTRY | 2001年 / 8卷 / 03期

关键词：

crystallization; potash alum; power ultrasound; supersaturation; size distribution;

D O I：

10.1016/S1350-4177(01)00087-6

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The influence of power ultrasound on the crystallization of potash alum was investigated. Experiments have been carried out in a batch stirred vessel. It was found that ultrasonic waves decrease the supersaturation limits and modify the morphology of the crystals produced. The average crystal size decreases with an increase of ultrasonic pourer. To investigate also the action of ultrasound on already existing crystals, crystals produced in silent conditions were suspended in saturated potash alum solution at various ultrasonic powers. The results show that ultrasound has also an abrasive effect on potash alum crystals for high power inputs. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：265 / 270

页数：6