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Rheological Properties of Acid-Activated Bentonite Dispersions

Published online by Cambridge University Press:  01 January 2024

Hu-Nan Liang ,
Zhu Long ,
Hui Zhang  and
Shu-Hui Yang
Hu-Nan Liang
Affiliation:
Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi 214122, China Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, Jiangsu Province, China
Zhu Long*
Affiliation:
Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi 214122, China
Hui Zhang
Affiliation:
Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, Jiangsu Province, China
Shu-Hui Yang
Affiliation:
Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi 214122, China
*
* E-mail address of corresponding author: longzhu@jiangnan.edu.cn
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Abstract

Acid-activated bentonites are utilized in many applications, including those that depend on their rheological properties and behavior, but little information is available regarding the rheological characteristics of this important industrial material. The purpose of this study was to investigate the effects of solids concentration, salt concentration, and pH value on the shear rate, shear stress, and other flow parameters of acid-activated bentonite suspensions. Activated Na-bentonite was prepared using sulfuric acid. Flow curves of the suspensions were modeled using the Herschel-Bulkley equation, which performed well for this system. The Herschel-Bulkley yield stress increased with the solids concentration and showed a maximum and minimum at the NaCl concentrations of 0.001 M and 0.01 M, respectively, and increased again slightly with further increases in NaCl concentration. The yield stress was at a maximum and a minimum at pH values of ≈5 and ≈7, respectively, followed by a slight increase with pH under alkaline conditions. The variations in dispersion rheological properties can be attributed to the change in the particle-association modes under different conditions.

Keywords

Acid-activated BentoniteHerschel-Bulkley ModelNaCl ConcentrationpHSolids Concentration
Type
Article
Information
Clays and Clay Minerals , Volume 58 , Issue 3 , June 2010 , pp. 311 - 317
Copyright
Copyright © The Clay Minerals Society 2010

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References

Banin, A. and Ravikovitch, S., 1966 Kinetics of reactions in the conversion of Na- or Ca-saturated clay to H—Al clay Clays and Clay Minerals 14 193–204 10.1346/CCMN.1966.0140116.CrossRefGoogle Scholar
Benna, M. Kbir-Ariguib, N. Magnin, A. and Bergaya, F., 1999 Effect of pH on rheological properties of purified sodium bentonite suspensions Journal of Colloid and Interface Science 218 442–455 10.1006/jcis.1999.6420.CrossRefGoogle ScholarPubMed
Besq, A. Malfoyb, C. Pantet, A. Monneta, P. and Righib, D., 2003 Physicochemical characterisation and flow properties of some bentonite muds Applied Clay Science 23 275–286 10.1016/S0169-1317(03)00127-3.CrossRefGoogle Scholar
Brezovska, S. Marina, B B D Angjusheva, B B V and Stojancvska, L., 2005 Adsorption properties and porous structure of sulfuric acid treated bentonites determined by the adsorption isotherms of benzene vapor Journal of the Serbian Chemical Society 70 33–40 10.2298/JSC0501033B.CrossRefGoogle Scholar
Chen, J.S. Cushman, J.H. and Low, P.F., 1990 Rheological behavior of Na-montmorillonite suspensions at low electrolyte concentration Clays and Clay Minerals 38 57–62 10.1346/CCMN.1990.0380108.CrossRefGoogle Scholar
Davey, B.G. and Low, P.F., 1971 Physico-chemical properties of sols and gels of Na-montmorillonite with and without adsorbed hydrous aluminum oxide Soil Science Society of America Proceedings 35 230–236 10.2136/sssaj1971.03615995003500020019x.CrossRefGoogle Scholar
Eisenhour, D. Reisch, F., Kogel, J E Trivedi, N C Barker, J M Krukowski, S T, 2006 Bentonite Industrial Minerals and Rocks 7th edition USA The Society for Mining, Metallurgy, and Exploration, Littleton, Colorado 357–368.Google Scholar
Grzegorz, J. and Dorota, M.S., 2006 Effect of acid treatment and alkali treatment on nanopore properties of selected minerals Clays and Clay Minerals 54 220–229 10.1346/CCMN.2006.0540207.Google Scholar
Günister, E. Güngör, N. and Ece, I., 2006 The investigations of influence of BDTDACl and DTABr surfactants on rheologic, electrokinetic and XRD properties of Na-activated bentonite dispersions Materials Letters 60 666–673 10.1016/j.matlet.2005.09.055.CrossRefGoogle Scholar
Herschel, W.H. and Bulkley, R., 1926 Konsistenzmessungen von Gummi-Benzollosungen Kolloid Zeitschrift 39 291–300 10.1007/BF01432034.CrossRefGoogle Scholar
Heyding, R.D. Ironside, R. Norris, A.R. and Pryslazniuk, R.Y., 1960 Acid activation of montmorillonite Canadian Journal of Chemistry 38 1003–1016 10.1139/v60-139.CrossRefGoogle Scholar
Janek, M. and Lagaly, G., 2001 Proton saturation and rheological properties of smectite dispersions Applied Clay Science 19 121–130 10.1016/S0169-1317(01)00051-5.CrossRefGoogle Scholar
Jovanovic, N.N. Brezovska, S. Burevski, D. Bosevska, V. Danova, B. and Vukovic, Z., 1996 The effect of inorganic acids on the adsorption properties of bentonite Journal of the Serbian Chemical Society 61 453–460.Google Scholar
Komadel, P. Madejova, J. Janek, M. Gates, W.P. Kirkpatrick, R.J. and Stucki, J.W., 1996 Dissolution of hectorite in inorganic acids Clays and Clay Minerals 44 228–236 10.1346/CCMN.1996.0440208.CrossRefGoogle Scholar
Komadel, P., 2003 Chemically modified smectites Clay Minerals 38 127–138 10.1180/0009855033810083.CrossRefGoogle Scholar
Lagaly, G. and Ziesmer, S., 2003 Colloid chemistry of clay minerals: the coagulation of montmorillonite dispersions Advances in Colloid and Interface Science 100 105–128 10.1016/S0001-8686(02)00064-7.CrossRefGoogle Scholar
Londo, M.G. Yang, X.L. and Young, R.H., 2001 Mesoporous Silicoaluminate Pigments for Use in Inkjet and Carbonless Paper coatings .Google Scholar
Luckham, P.F. and Rossi, S., 1999 The colloidal and rheological properties of bentonite suspensions Advances in Colloid and Interface Science 82 43–92 10.1016/S0001-8686(99)00005-6.CrossRefGoogle Scholar
Mills, G.A. Holmes, J. and Cornelius, E.B., 1950 Acid activation of some bentonite clays Journal of Physics and Colloid Chemistry 54 1170–1185 10.1021/j150482a009.CrossRefGoogle ScholarPubMed
Noyan, H. Önal, M. and Sarikaya, Y., 2007 The effect of sulphuric acid activation on the crystallinity, surface area, porosity, surface acidity, and bleaching power of a bentonite Food Chemistry 105 156–163 10.1016/j.foodchem.2007.03.060.CrossRefGoogle Scholar
Önal, M. and Sarlkaya, Y., 2007 Preparation and characterization of acid-activated bentonite powders Powder Technology 172 14–18 10.1016/j.powtec.2006.10.034.CrossRefGoogle Scholar
Permien, T. and Lagaly, G., 1994 The rheological and colloidal properties of bentonite dispersions in the presence of organic compounds: II. Flow behaviour of Wyoming bentonite in water-alcohol Clay Minerals 29 761–766.Google Scholar
Permien, T. and Lagaly, G., 1994 The rheological and colloidal properties of bentonite dispersions in the presence of organic compounds: IV. Sodium montmorillonite and acids Applied Clay Science 9 251–263 10.1016/0169-1317(94)90003-5.CrossRefGoogle Scholar
Saoussen, L. Jean-Marie, F. Jean-Louis, G. and Nejia Kbir, A., 2006 Effect of pH on the rheological behavior of pure and interstratified smectite clays Clays and Clay Minerals 54 29–37 10.1346/CCMN.2006.0540104.Google Scholar
Tombácz, E. and Szekeres, M., 2004 Colloidal behavior of aqueous montmorillonite suspensions: the specific role of pH in the presence of indifferent electrolytes Applied Clay Science 27 75–94 10.1016/j.clay.2004.01.001.CrossRefGoogle Scholar
Van Olphen, H., 1977 Introduction to Clay Colloid Chemistry 2und edition New York Wiley.Google Scholar
Van Rompaey, K. Van Ranst, E. De Coninck, F. and Vindevogel, N., 2002 Dissolution characteristics of hectorite in inorganic acids Applied Clay Science 21 241–256 10.1016/S0169-1317(02)00086-8.CrossRefGoogle Scholar
Yildiz, N. Sarlkaya, Y. and Çalimli, A., 1999 The effect of the electrolyte concentration and pH on the rheological properties of the original and the Na2 CO3-activated Kütahya bentonite Applied Clay Science 14 319–327 10.1016/S0169-1317(99)00006-X.CrossRefGoogle Scholar
Zorica, V. Aleksandra, M. Ljiluana, R. Aleksandra, R. Zoran, N. and Dusan, J., 2006 The influence of acid treatment on the composition of bentonite Clays and Clay Minerals 54 697–702 10.1346/CCMN.2006.0540605.Google Scholar