Current FRP technology limits the use of composite piping systems to mild solvents and low concentrations (below 75%) of sulfuric acid. Many typical plant environments contain strong organic solvents such as chloroform, dichloroethane, and methylene chloride, as well as acids such as sulfuric and hydrochloric. Also, many waste streams contain combinations of both acids and solvents. Currently, plants must specify lined steel or high alloy metallic piping systems for these applications.

It is the purpose of this paper to show that new thermosetting resin technology and liner materials have shown excellent corrosion resistance to concentrated organic solvents and sulfuric acid at up to 98%, with operating temperatures up to 275°F(135°C).

Subject
Test methods, Materials, Piping, Adhesives, Piping systems, Sulfuric acid, Fittings, Corrosion testing, Solvents, Flanges, Fiber reinforced plastic, Composites, Fiberglass
Keywords:
sulfuric acid, organic solvents, thermosetting resins, FRP
© 1997 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).
1997
Association for Materials Protection and Performance (AMPP)
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