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Diffusion controlled dissolution of metal powder in acidic solutions in stirred vessels

Diffusion controlled dissolution of metal powder in acidic solutions in stirred vessels The rate of diffusion controlled dissolution of copper powder in acidified chromate solution under forced convection conditions was studied. Variables investigated were, rotational speed, initial concentration and physical properties of the acidic solution. Increasing the initial concentration was found to decrease the volumetric mass transfer coefficient. Within the range w 150600 revmin, the volumetric mass transfer coefficient was found to be directly related to the rotational speed according to the following k a w0.6 On the other hand, the volumetric mass transfer coefficient was found to be inversely proportional to the kinematic viscosity of the solution according to the following relation k a v0.7 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Anti-Corrosion Methods and Materials Emerald Publishing

Diffusion controlled dissolution of metal powder in acidic solutions in stirred vessels

Anti-Corrosion Methods and Materials , Volume 38 (9): 3 – Sep 1, 1991

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0003-5599
DOI
10.1108/eb007299
Publisher site
See Article on Publisher Site

Abstract

The rate of diffusion controlled dissolution of copper powder in acidified chromate solution under forced convection conditions was studied. Variables investigated were, rotational speed, initial concentration and physical properties of the acidic solution. Increasing the initial concentration was found to decrease the volumetric mass transfer coefficient. Within the range w 150600 revmin, the volumetric mass transfer coefficient was found to be directly related to the rotational speed according to the following k a w0.6 On the other hand, the volumetric mass transfer coefficient was found to be inversely proportional to the kinematic viscosity of the solution according to the following relation k a v0.7

Journal

Anti-Corrosion Methods and MaterialsEmerald Publishing

Published: Sep 1, 1991

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