Abstract
This paper addresses the precipitation of calcium salts of phosphonates (i.e., hydroxyethylidine 1,1 -diphosphonic acid, HEDP; aminotri(methylene phosphonic acid), AMP; 2-phosphono-butane 1,2,4-tricarboxylic acid, PBTC) at pH 8.50 and 50°C. The aim of the study was to investigate the role of cationic polyelectrolytes (i.e., poly(diallyldimethyl ammonium chloride), Poly-E and poly(acrylamide:2-(acrolyloxy)ethyltrimethyl ammonium chloride), Poly-F) on the performance of several anionic calcium phosphonate inhibiting polymers. The anionic polymers studied include: acrylic acid/maleic acid-based homo-, co-, and terpolymers; fulvic acid (FA) and tannic acid (TA). The inhibiting data on several anionic polymers indicate that the performance of polymers depends on the type of the functional groups present in the polymer. It has been found that addition of low concentrations (from 0.25 to 1.0 parts per million) of Poly-E and Poly-F adversely impacts the performance of calcium phosphonate inhibiting polymers. The results also indicate that under similar experimental conditions Poly-F exhibits a stronger antagonistic affect than Poly-E.
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References
Cowan, J. C. and Weintritt, D. J., Water-Formed Scale Deposits, Gulf Publishing Company, Houston, TX, 1975
Amjad, Z., Calcium Phosphates in Biological and Industrial Systems, Kluwer Academic Publishers, Boston, MA, 1998
Ebrahimpour, A, Ebetino, F. H., Sethuraman, G., and Nancollas, G. H., in Mineral Scale Formation and Inhibition, Amjad, Z., Ed., Chap. 24, Plenum Publishing Corporation, New York, NY, 1995
Ashcraft, R. H., Scale Inhibition Under Harsh Conditions by 2-Phosphonobutane-1,2,4-Tricarboxylic Acid, CORROSION/85, Paper No. 123, National Association of Corrosion Engineers, Houston, TX, 1985
Hogue, R. R., Sensitivity of DequestR Phosphonates to Elevated Levels of Calcium, Report No. 8433, Monsanto Company, September 13, 1976
Smyk, E. E., Hoots, H. E., Fivizzani, K. F., Fulks, K. E., The Design and Application of Polymers in Cooling Water Programs, CORROSION/88, Paper No. 14, National Association of Corrosion Engineers, Houston, TX, 1988
Boffardi, B. P., and Schweitzer, G. W., Advances in the Chemistry of Alkaline Cooling Water Treatment, CORROSION/85, Paper No. 132, National Association of Corrosion Engineers, Houston, TX, 1985
Masler, W. F. and Amjad, Z., Advances in the Control of Calcium Phosphonate with a Novel Polymeric Inhibitors, CORROSION/88, Paper No. 11, National Association of Corrosion Engineers, Houston, TX, 1988
Amjad, Z., Performance of Polymers as Precipitation Inhibitors for Calcium Phosphonate, Tenside Surfactants Detergents 34, 102, 1997
Amjad, Z., Butala, D., and Pugh, J., The Influence of Recirculating Water Impurities on the Perfromance of Calcium Phosphate Inhibiting Polymers, Paper, NACE International, Houston, TX, 1999
Amjad, Z., Pugh, J., Zibrida, J. and Zuhl, R., Polymer Performance in Cooling Water: The Influence of Process Variables, Materials Performance 36, 32, 1997
Amjad, Z., Hooley, J., Effect of Antiscalants on the Precipitation of Calcium Carbonate in Aqueous Solutions, Tenside Surfactants Detergents, 31, 12, 1994
Amjad, Z., Controlling Metal Ions Fouling in Industrial Water Systems, accepted for publication, ULTRAPURE WATER 1999
Amjad, Z., Factors to Consider in Selecting a Dispersant for Industrial Water Systems, accepted for publication, ULTRAPURE WATER, 1999
Amjad, Z., Calcium Sulfate Dihydrate (Gypsum) Scale Formation on Heat Exchanger Surfaces: The Influence of Scale Inhibitors, J. Colloid and Surface Science, 123, 523, 1988
Nystrom, M., Ruohomaki, N, Kaipia, L, Humic Acid as Fouling Agent in Filtration”, Desalination, 106, 79, 1996
Freche, M., Rouquet, N., Koutsoukos, P. G., and Lacout, J. L., effect of Humic Compounds on the Crystal Growth of Dicalcium Phosphate Dihydrate, Agrochimica 36, 500, 1992
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© 2002 Kluwer Academic Publishers
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Amjad, Z., Zuhl, R.W., Thomas-Wohlever, J.A. (2002). Performance of Anionic Polymers as Precipitation Inhibitors for Calcium Phosphonates: The Influence of Cationic Polyelectrolytes. In: Amjad, Z. (eds) Advances in Crystal Growth Inhibition Technologies. Springer, Boston, MA. https://doi.org/10.1007/0-306-46924-3_6
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DOI: https://doi.org/10.1007/0-306-46924-3_6
Publisher Name: Springer, Boston, MA
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