title: Effect of ultrasound on the dissolution kinetics of phosphate rock in HNO3.
abstract: 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.
authors.affiliation: Faculty of Engineering, Department of Chemical Engineering, Atatürk University, 25240 Erzurum, Turkey. tanertekin@rocketmail.com
authors.forename: T
authors.initials: T
authors.lastname: Tekin
authors.forename: D
authors.initials: D
authors.lastname: Tekin
authors.forename: M
authors.initials: M
authors.lastname: Bayramoğlu