Effect of ultrasound on the dissolution of colemanite in H2SO4
HYDROMETALLURGY, cilt.67, ss.79-86, 2002 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 67
- Basım Tarihi: 2002
- Doi Numarası: 10.1016/s0304-386x(02)00137-8
- Dergi Adı: HYDROMETALLURGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.79-86
- Anahtar Kelimeler: ultrasound, colemanite, dissolution kinetics, sulfuric acid, KINETICS
- Atatürk Üniversitesi Adresli: Evet
Özet
This paper deals with the dissolution of colemanite in sulfuric acid, in the absence and presence of ultrasound. By nonlinear regression analysis, a modified Avrami-typeA equation was fitted to kinetic data and the activation energy was found to be 30 kJ/mol in both cases. The effect of ultrasound is on the pre-exponential factor A in the Arrhenius equation. An empirical relation is also given, which relates the rate constant to ultrasound power. (C) 2002 Elsevier Science B.V. All rights reserved.