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Experience of Caustic Soda Recovery Integrated with Automatic Die Cleaning

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Description

Industrial Experience of Caustic Soda Recovery Integrated with Automatic Die Cleaning

Walter Dalla Barba and Fabio Vincenzi, Italtecno

Track: VALUE-ADDED PROCESSES - Extrusion

ABSTRACT --- Recently a new system for caustic soda recovery after cleaning
of extrusion dies has been invented and patented. This system allows the full
automation and control of all parameters (caustic soda, aluminum
concentrations, temperature) and the recovery of all caustic soda, which, after
complexing with aluminum, can be used again as free soda while aluminum is
eliminated as hydroxide. This system is fully integrated with a modern,
automated, and ecological plant for die cleaning. Technical, economic and
ecologic advantages are also described.

© Extrusion Technology for Aluminum Profiles Foundation (ET Foundation). All rights reserved. No part of The Proceedings may be reproduced in any form without the express written permission of the ET Foundation.

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