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Preparation of finely dispersed bentonite suspensions in a bifrequency cavitation field

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Abstract

It was demonstrated that the application of ultrasonic, hydroacoustic, and bifrequency cavitation for bentonite dispergation allows one to obtain finely dispersed suspensions, including those of submicron particles. It was found out how the particle dimensions depend on the amplitude of the oscillations, the duration of the treatment, and the static pressure. The results of electron microscopic examination of the suspensions were analyzed.

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References

  1. Kerdivarenko, M.A., Moldavskie prirodnye adsorbenty i tekhnologiya ikh primeneniya (Moldavian Natural Adsorbents and Technology of Their Application), Chisinau: Kartya Moldovenyaske, 1975.

    Google Scholar 

  2. Peters, D., Ultrasound in materials chemistry, J. Mater. Chem., 1996, vol. 6, pp. 1605–1618.

    Article  Google Scholar 

  3. Mekhamer, W.K., The colloidal stability of raw bentonite deformed mechanically by ultrasound, J. Saudi Chem. Soc., 2010, vol. 14, no. 3, pp. 301–306.

    Article  Google Scholar 

  4. Darvishi, Z. and Morsali, A., Synthesis and characterization of nano-bentonite by sonochemical method, Ultrason. Sonochem., 2011, vol. 18, pp. 238–242.

    Article  Google Scholar 

  5. Nguyen, A.N., Reinert, L., Lévêque, J.-M., Beziat, A., Dehaudt, P., Juliaa, J.-F., and Duclaux, L., Preparation and characterization of micron and submicron-sized vermiculite powders by ultrasonic irradiation, Appl. Clay Sci., 2013, vol. 72, pp. 9–17.

    Article  Google Scholar 

  6. Lapides, I., Yariv, Sh., The effect of ultrasound treatment on the particle-size of Wyoming bentonite in aqueous suspensions, J. Mater. Sci., 2004, vol. 39, pp. 5209–5212.

    Article  Google Scholar 

  7. Margulis, M.A. and Khavskii, N.N., On the mechanism of combined action of two frequencies of acoustic oscillations of the physicochemical and chemical effects, Vses. simpozium “Akusticheskaya kavitatsiya i primenenie ul’trazvuka v khimicheskoi tekhnologii” (All-Union Symposium “Acoustic Cavitation and Application of Ultrasound in Chemical Technology”, Slavskoe, 1985, pp. 93–94.

    Google Scholar 

  8. Dumitrash, P.G., Bologa, M.K., Kuchuk, T.V., Lutsa, I.F., and Shemyakova, T.D., On the efficiency of cavitation action on the process of the starch size preparation for the textile industry, Surf. Eng. Appl. Electrochem., 2011, vol. 47, no. 5, pp. 475–479.

    Article  Google Scholar 

  9. Agranat, B.A., Khavskii, N.N., Fel’dman, A.V., and Milovidov, A.A., On the mechanism of action of acoustic oscillations on the flotation process, Shestaya vses. konf. po ul’trazvukovym metodam intensifikatsii tekhnologicheskikh protsessov (Sixth All-Union Conf. on the Ultrasonic Methods of Intensification of Technological Processes), Moscow, 1987, p. 83.

    Google Scholar 

  10. Dubrovin, M.N., Kitaigorodskii, Yu.I., and Khavskii, N.N., Dynamics of pulsations of a cavitation bubble at bifrequency excitation, Shestaya vses. konf. po ul’trazvukovym metodam intensifikatsii tekhnologicheskikh protsessov (Sixth All-Union Conf. on the Ultrasonic Methods of Intensification of Technological Processes), Moscow, 1987, p. 14.

    Google Scholar 

  11. Agranat, B.A., Ul’trazvukovaya tekhnologiya (Ultrasonic Technology), Moscow: Metallurgiya, 1992.

    Google Scholar 

  12. Herbertz, J., Non-contact electrodynamic measurement on metallic vibrators at 20 kHz, Ultrasonics, 1967, vol. 5, no. 4, pp. 239–240.

    Article  Google Scholar 

  13. Valuiko, G.G., Zinchenko, V.I., and Mekhuzla N.A., Stabilizatsiya vinogradnykh vin (Stabilization of Grape Wines), Simferopol’: Tavrida, 1999.

    Google Scholar 

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Correspondence to P. G. Dumitrash.

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Original Russian Text © P.G. Dumitrash, M.K. Bologa, T.D. Shemyakova, 2015, published in Elektronnaya Obrabotka Materialov, 2015, No. 1, pp. 85–91.

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Dumitrash, P.G., Bologa, M.K. & Shemyakova, T.D. Preparation of finely dispersed bentonite suspensions in a bifrequency cavitation field. Surf. Engin. Appl.Electrochem. 51, 85–91 (2015). https://doi.org/10.3103/S1068375515010032

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