Corrosion problems in mining and metallurgical industries are quite serious. During recent years, mining and metallurgical industries have been increasingly concerned about these problems. Mining equipment often undergoes rapid and catastrophic corrosion failures in polluted mine waters. Hoey and Dingley(1) have exhaustively surveyed the corrosion problems in Canadian sulfide ore mines and mills. They measured the pH of the mine waters, which varied from 2.5 to 8.0. Analyses of these mine waters sampled at different depths of the mines indicated the presence of Fe+++, Fe++, Cu++, Ni++, Co++, K+, Ca++, Mg++, Na++, SiO2, Cl-, SO4= and HCO3- species. Mild steel is an important material of construction in mining equipment and can undergo rapid failures due to corrosion when it gets into contact with the waters containing these species. Corrosion patterns can be either generalized or localized type of attack depending on the pH and ionic species present. A literature survey revealed only one relevent investigation, by Raducanu and Fasie(2) in which they studied the corrosion rates of carbon 0L-38 steel taking into account the pH and the temperature of coal mine waters.

Subject
Water, Ions, Corrosion rate, Sulfuric acid, Sulfites, Acidity, Ion concentrations, Steel, Mining, Copper, Risk reduction, Chemical reactions, Corrosion potential
© 1974 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1974
Association for Materials Protection and Performance (AMPP)
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