Performance of an Maleic Anhydride Based Polymers as Scale Inhibitor and Iron (III) Scaling in Industrial Cooling Water Systems

Abstract:

The precipitation of Ca₃(PO₄)₂ scale on pipe surfaces widely occurs in numerous industrial processes. For the control of Ca₃(PO₄)₂ scales, a novel environmentally friendly type of scale inhibitor Maleic anhydride (MA) - allypolyethoxy carboxylate (APEM) was synthesized. Structures of APEG, APEM, and MA-APEM were identified by FT-IR. MA-APEM possess excellent Ca₃(PO₄)₂ inhibition, approximately 96.7 % at threshold dosage of 6 mg/L, and it also have superior ability to iron (III) dispersion in solutions approximately 24.3 % in the presence of MA-APEM when the dosage exceeds 6 mg/L. Inhibitor of MA-APEM can be used safely in cooling water systems.

• Periodical: Advanced Materials Research (Volumes 1044-1045)
• Pages: 79-82
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1044-1045.79
• Online since: October 2014
• Authors: Hu Chuan Wang, Yu Ming Zhou*, Wei Sun
• Keywords: Calcium Phosphate, Cooling Water System, Environmentally Friendly, Iron (III) Scaling, Scale Inhibitor

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