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Anodic Protection of Continuous Digesters to Prevent Corrosion and Cracking

Published by TAPPI
Author(s): Ian Munro

Anodic protection has been shown to prevent corrosion of continuous digesters. Research indicates that this type of protection will also prevent caustic cracking in the both soda and kraft vessels. The purpose of this paper is to familiarize pulp mill personnel with the basic mechanism of corrosion and caustic cracking in digesters and how anodic protection can be utilized to prevent these serious problems.