Abstract
The influence of medium pH on the flocculation of kaolin and ochre suspensions by pyridinium polyelectrolytes is studied by turbidimetry, optical microscopy, and sedimentometry. It is established that flocculating activity of such polyelectrolytes shows an extremal dependence with the maximum in the neutral pH region. It is found that, in the examined pH range, the use of the copolymer of 1,2-dimethyl-5-vinylpyridinium methyl sulfate with N-vinylpyrrolidone and acrylamide yields the densest and strongest flocs with a high sedimentation rate.
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REFERENCES
Myagchenkov, V.A., Proskurina, G.V., and Bulidorova, G.V., Khim. Tekhnol. Vody, 2001, vol. 23, no. 3, p. 285.
Kurenkov, V.F., Snegirev, S.V., and Churikov, F.I., Zh. Prikl. Khim. (St. Petersburg), 2001, vol. 74, no. 3, p. 435.
Navrotskii, A.V., Dryabina, S.S., Malysheva, Zh.N., et al., Zh. Prikl. Khim. (St. Petersburg), 2000, vol. 73, no. 12, p. 1940.
Praktikum po kolloidnoi khimii i elektronnoi mikroskopii (Laboratory Manual of Colloid Chemistry and Electron Microscopy), Voyutskii, S.S. and Panich, R.M., Eds., Moscow: Khimiya, 1974.
Malysheva, Zh.N., Dryabina, S.S., Navrotskii, A.V., et al., Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 2001, vol. 44, no. 2, p. 38.
Baran, A.A. and Gregori, D., Kolloidn. Zh., 1996, vol. 58, no. 1, p. 13.
Proskurina, V.E. and Myagchenkov, V.A., Zh. Prikl. Khim. (St. Petersburg), 1999, vol. 72, no. 10, p. 1704.
Tambo, N. and Watanabe, Y., Water Res., 1975, vol. 5, no. 5, p. 409.
Tambo, N. and Hozumi, H., Water Res., 1979, vol. 13, no. 5, p. 421.
Babenkov, E.D., Khim. Tekhnol. Vody, 1981, vol. 3, no. 3, p. 24.
Ivanauskas, A., Muhle, K., and Domasch, K., Zur Modelierung des Flockungsprozesses, Leipzig: VEB Deutscher Verlar für brundstoffindustrie, 1985, p. 47.
Ivanauskas, A., Muhle, K., and Domasch, K., Zur Modelierung des Flockungsprozesses, Leipzig: VEB Deutscher Verlay für Grundstoffiudustue, 1985, p. 82.
Proskurina, V.E. and Myagchenkov, V.A., Zh. Prikl. Khim. (St. Petersburg), 2000, vol. 73, no. 3, p. 499.
Lashkevich, O.V., Dyagileva, A.B., and Chernoberezhskii, Yu.M., Kolloidn. Zh., 1998, vol. 60, no. 1, p. 42.
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Navrotskii, A.V., Dryabina, S.S., Malysheva, Z.N. et al. Influence of Medium pH on the Flocculation of Dispersions by Pyridinium Polyelectrolytes. Colloid Journal 65, 752–756 (2003). https://doi.org/10.1023/B:COLL.0000009119.20087.54
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DOI: https://doi.org/10.1023/B:COLL.0000009119.20087.54