Effect of ultrasound on the dissolution kinetics of phosphate rock in HNO3

被引：40
|
作者：
Tekin, T [1 ]
Tekin, D [1 ]
Bayramoglu, M [1 ]
机构：
[1] Ataturk Univ, Fac Engn, Dept Chem Engn, TR-25240 Erzurum, Turkey
来源：
ULTRASONICS SONOCHEMISTRY | 2001年 / 8卷 / 04期
关键词：
ultrasound; phosphate rock; dissolution kinetics; nitric acid;
D O I：
10.1016/S1350-4177(00)00078-X
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Ultrasound is known to enhance solid/liquid reactions. This paper deals with the investigation of the dissolution of phosphate rock in nitric acid, in the absence and presence of ultrasound. The reaction is first-order with respect to H- and activation energy equal to 16 kJ/mol in both cases. The effect of ultrasound is on the pre-exponential factor A. An empirical relation is given, which relates rate constant to ultrasound power. (C), 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：373 / 377
页数：5
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