Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-22T15:05:13.807Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of grinding on the structure and colour properties of talc, bentonite and calcite white fillers

Published online by Cambridge University Press:  09 July 2018

G. E. Christidis ,
P. Makri  and
V. Perdikatsis
G. E. Christidis*
Affiliation:
Technical University of Crete, Department of Mineral Resources Engineering, 73100 Chania, Greece
P. Makri
Affiliation:
Technical University of Crete, Department of Mineral Resources Engineering, 73100 Chania, Greece
V. Perdikatsis
Affiliation:
Technical University of Crete, Department of Mineral Resources Engineering, 73100 Chania, Greece
*
*E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

The influence of grinding on colour and particle-size properties of talc and smectite from a white bentonite were studied and compared with a fine-grained calcite from a chalk. Grinding decreased the grain size of all three minerals. The crystallite size and structure of smectite was not affected but the crystallite size of talc decreased. The Si–O–Mg and Mg–O bonds of talc were disrupted and cation exchange capacity increased with increasing grinding. Delamination of talc crystallites was observed in the initial stages of grinding, whereas with more intense treatment, amorphous material was formed. Comminution improved the colour properties of all three minerals, namely brightness, L* (lightness) and ΔE*ab (deviation from perfect white diffuser). Grinding time exerts greater influence on the reflectance from calcite surfaces than from clay minerals. This difference is attributed to continuous formation of progressively smaller diffuse reflection units forming a smoother calcite surface. Decrease of grain size does not form considerably smaller diffuse reflection units in clay minerals unless delamination takes place. With prolonged grinding, amorphization forms additional diffuse reflection units and a smoother surface due to comminution.

Keywords

talcbentonitecalcitegrindingcrystallite sizediffuse reflection unit
Type
Research Article
Information
Clay Minerals , Volume 39 , Issue 2 , June 2004 , pp. 163 - 175
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Adams, J.M. (1993) Particle size and shape effects in materials science: examples from polymer and paper systems. Clay Minerals, 28, 509–530.Google Scholar
Allen, T. (1990) Particle Size Measurement. Vol. 1. Pp. 44–111, Chapman & Hall, London.Google Scholar
Bergman, H. (1964) Geological Map of Greece, Kefalonia Sheet. Institute of Geological and Mining Exploration, Greece.Google Scholar
Billmeyer, F.W. & Saltzman, M. (1981) Principles of Color Technology, 2nd edition. Pp. 1–23, Wiley Interscience, New York.Google Scholar
Carr, D.D., Rooney, L.F. & Freas, R.C. (1994) Limestone and dolomite. Pp. 605–609 in: Industrial Minerals andRocks. (Carr, D.D., editor). American Institute of Mining and Metallurgical Engineers.Google Scholar
Christidis, G. (1998) Physical and chemical properties of some bentonite deposits of Kimolos Island, Greece. AppliedClay Science, 13, 79–98.Google Scholar
Christidis, G. & Scott, P.W. (1997) Origin and colour properties of white bentonites: A case study from the Aegean Islands of Milos and Kimolos, Greece. Mineralium Deposita, 32, 271–279.Google Scholar
Cervelle, B. & Moëlo, Y. (1990) Reflected light optics. Pp. 87 – 108 in: Short Course on Advanced Microscopic Studies of Ore Minerals (Jambor, J.L. & Vaughan, D.J., editors). Mineralogical Association of Canada, Ottawa.Google Scholar
Čičel, V. & Kranz, G. (1981) Mechanism of montmorillonite structure degradation by percussive grinding. Clay Minerals, 16, 151–162.Google Scholar
Drits, V., Eberl, D.D. & Środoń, J. (1998) XRD measurement of mean thickness, thickness distribution and strain for illite and illite/smectite crystallites by the Bertaut-Warren-Averbach technique. Clays andClay Minerals, 46, 461–475.Google Scholar
Eberl, D.D., Drits, V., Środoń, J. & Nüesch, R. (1996) MudMaster: a program for calculating crystallite size distribution and strain from the shapes of X-ray diffraction peaks. USGS, Open File Report 96-171, Boulder, CO, USA.CrossRefGoogle Scholar
Eberl, D.D., Drits, V. & Środoń, J. (1998) Deducing growth mechanisms for minerals from the shapes of crystal size distributions. American Journal of Science, 298, 499–533.Google Scholar
Farmer, V.C. (1974) The layer silicates. Pp. 331–363 in: The InfraredSpectra of Minerals (Farmer, V.C., editor). Monograph 4, Mineralogical Society, London.Google Scholar
Gregg, S.J. (1968) Surface chemical study of comminuted and compacted solids. Chemistry andIndustry, 11, 611–617.Google Scholar
Kristoff, E., Zoltan Juhasz, A. & Vassanyi, I. (1993) The effect of mechanical treatment on the crystal structure and thermal behavior of kaolinite. Clays andClay Minerals, 41, 608–612.Google Scholar
Koch, G.S. Jr. & Link, R.F. (1971) Statistical Analysis of Geological Data. Dover, New York.Google Scholar
Liao, J. & Senna, M. (1992) Thermal behavior of mechanically amorphized talc. Thermochimica Acta, 197, 295–306.Google Scholar
Makri, P. (2002) Study of the influence of comminution on the colour properties of fillers (talc, halloysite, limestone). Unpublished M.Sc. thesis, Technical University of Crete, Greece.Google Scholar
Mingelgrin, U., Kliger, L., Gal, M. & Saltzman, S. (1978) The effect of grinding on the structure and behavior of bentonites. Clays andClay Minerals, 26, 299–307.Google Scholar
Mukherjee, D.K. & Roy, S. (1973) Effect of dry grinding on the CEC of some Indian talcs. Industrial Ceramics, 10, 215–219.Google Scholar
Naydowski, C., Hess, P., Strauch, D., Kuhlmann, R. & Rohleder, J. (2001) Calcium carbonate and its industrial applications. Pp 197–311 in: Calcium Carbonate. From the Cretaceous Periodinto the 21st Century (Tegethoff, F.W. editor). Birkhäuser Verlag, Basel.Google Scholar
Perdikatsis, V. & Burzlaff, H. (1981) Structurverfeinerung am Talk Mg3[(OH)2Si4O10]. Zeitschrift fur Kristallographie, 156, 177–186.Google Scholar
Perez-Rodriquez, J.L. & Sanchez-Soto, P.J. (1991) The influence of the dry grinding on the thermal behavior of pyrophyllite. Journal of Thermal Analysis, 37, 1401–1423.Google Scholar
Reynolds, R.C. Jr. & Bish, D.L. (2002) The effects of grinding on the structure of a low-defect kaolinite. American Mineralogist, 87, 1626–1630.Google Scholar
Sanchez-Soto, P.J., Wiewióra, A., Aviles, M.A, Justo, A., Perez-Maqueda, L.A., Perez-Rodriquez, J.L. & Bylina, P. (1997) Talc from Puebla de Lillo, Spain. II. Effect of dry grinding on particle size and shape. Applied Clay Science, 12, 297–312.Google Scholar
Scott, P.W. (1990) Brightness and Colour Measurement. CEC/ASEAN training course on assessment procedures for clays and ceramic raw materials. 11 pp.Google Scholar
Stepkowska, E.T., Perez-Rodriquez, J.L., Himenez de Haro, M.C., Sanchez-Soto, P.J. & Maqueda, L.A. (2001) Effect of grinding and water vapour on the particle size of kaolinite and pyrophyllite. Clay Minerals, 36, 105–114.Google Scholar
Suraj, G., Iyer, C.S.P., Rugmini, S. & Lalithambika, M. (1997) The effect of micronization on kaolinites and their sorption behaviour. AppliedClay Science, 12, 111–130.Google Scholar
Triantafyllou, G., Christidis, G. & Markopoulos, T. (2003) Influence of porosity and grain size of carbonate rocks on the reactivity of lime. Pp 931–934 in: Mineral Exploration andSustainable Development (Eliopoulos, D. et al., editors). Millpress, Rotterdam, The Netherlands.Google Scholar
Uhlík, P., Šucha, V., Eberl, D.D., Puskelova, L. & Čaplovičová, M. (2000) Evolution of pyrophyllite particle sizes during dry grinding. Clay Minerals, 35, 423–432.CrossRefGoogle Scholar
Volzone, C., Aglietti, E.F., Scian, A.N. & Porto Lopez, J.M. (1987) Effect of induced structural modifications on the physicochemical behavior of bentonite. AppliedClay Science, 2, 97–104.Google Scholar
Wiewióra, A., Sanchez-Soto, P.J., Aviles, M.A., Justo, A. & Perez-Rodriquez, J.L. (1993) Effect of dry grinding and leaching on the polytypic structure of pyrophyllite. AppliedClay Science, 8, 261–282.Google Scholar