Inorganic phosphate is the most widely used mild steel corrosion inhibitor for open recirculating cooling water systems.  However, effective control of calcium phosphate precipitation must be maintained both in the recirculating cooling water and at heated surfaces if corrosion is to be controlled without a loss of heat transfer efficiency.  Over the past 30 years, notable advances have been made in polymeric dispersant technologies that have improved calcium phosphate control. This paper discusses the performance under stressed conditions.

08-09: Improved Calcium Phosphate Control For Stressed Systems


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