(70w) A Study of the Effect of Ultrasound on Baso4 Heterogeneous Nucleation during Reactive Crystallization
AIChE Spring Meeting and Global Congress on Process Safety
2006
2006 Spring Meeting & 2nd Global Congress on Process Safety
Fifth World Congress on Particle Technology
Poster Session: World Congress
Monday, April 24, 2006 - 4:30pm to 8:30pm
Abstract: The effect of ultrasound on reactive crystallization is studied by measuring the induction time when nucleation is predominantly homogeneous. Barium sulphate is used as the working substance precipitated by mixing aqueous BaCl2 and Na2SO4 solutions. The experiments were carried with various energy inputs.
The effect on heterogeneous nucleation is investigated and compared with the effect on homogeneous nucleation by determining quantitatively the influence of ultrasound on the diffusion coefficient (DAB) together with the contact angle (è) and geometric correction factor(f). Additionally, the ultrasonic effect on the critical supersaturation ratio, where predominant nucleation mechanism changes from homogenous nucleation to heterogeneous nucleation, is measured and compared with the result obtained from classical nucleation theory.
Checkout
This paper has an Extended Abstract file available; you must purchase the conference proceedings to access it.
Do you already own this?
Log In for instructions on accessing this content.
Pricing
Individuals
AIChE Pro Members | $150.00 |
AIChE Graduate Student Members | Free |
AIChE Undergraduate Student Members | Free |
AIChE Explorer Members | $225.00 |
Non-Members | $225.00 |