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Characterization for industrial applications of clays from Lembo deposit, Mount Bana (Cameroon)

  • P. Pialy (a1) (a2), C. Nkoumbou (a2) (a3), F. Villiéras (a3), A. Razafitianamaharavo (a3), O. Barres (a3), M. Pelletier (a3), G. Ollivier (a3), I. Bihannic (a3), D. Njopwouo (a1), J. Yvon (a3) and J-. P. Bonnet (a4)...

Abstract

The Lembo clay deposit occurs on orthogneiss, but it also comprises clays with litho-relicts of volcanic rocks. In this study, ten samples from two sites were investigated. The mineralogical compositions consisted of kaolinite + halloysite + illite + quartz + hematite + anatase ± rutile ± orthoclase ± sanidine ± magnetite ± maghemite ± goethite ± Ba-Al-Fe-phosphates ± carbonates ± sulphates. Kaolinite-halloysite and quartz are the prevailing minerals. Some volcanicderived clays contain Fe-rich kaolinite-halloysite (9.6–14.1 wt.% Fe2O3). The chemical compositions, colours and specific surface area (SSA) measurements reveal two groups of clays: one with a positive whiteness index (IB), small SSA and small Fe content, and the other showing a large SSA, negative IB and relatively large Fe contents. The compositions of the first group are close to those of clays from the Mayouom deposit (Cameroon), and from some European commercial kaolins used in ceramics. Relatively Fe-rich clay materials may conform to most formulations of earthen bricks. As a whole, the Lembo clay deposit comprises various compositions of kaolinitic clays, which may yield the opportunity for extensive application in ceramics.

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Abajo, M.F. (2000) Manual sobre fabricacion de baldosas, tejas y ladrillos (Beralmar, S.A.). Madrid.
Balan, E., Saitta, A.M., Mauri, F. & Calas, G. (2001) First principles modelling of the infrared spectrum of kaolinite. American Mineralogist, 86, 13211330.
Balek, V. & Murat, M. (1996) The emanation thermal analysis of kaolinite clay minerals. Thermochimica Ada, 282/283, 385-397.
Barrett, P.E., Joyner, L.G. & Halenda, P.P. (1951) The determination of pore volume and area distributions in porous substances. I. Computations from nitrogen isotherms. Journal of American Chemical Society, 73, 373380.
Benco, L., Tunega, D., Hafner, J. & Lischka, H. (2001) Orientation of OH groups in kaolinite and dickite: Ab initio molecular dynamics study. American Mineralogist, 86, 10571065.
Bentabol, M., Cruz, M.D.R., Huertas, F.J. & Linares, J. (2006) Chemical and structural variability of illitic phases formed from kaolinite in hydrothermal conditions. Applied Clay Science, 32, 111124.
Brown, G. & Brindley, G.W. (1984) Crystal Structures of Clay Minerals and their X-ray Identification. Mineralogical Society, London, 495 pp.
Caillère, S. & Henin, S. (1976) Physical and chemical properties of phyllosilicates. Pp. 185267 in: Crystallography and Crystal Chemistry of Materials with Layered Structures (Levy, F., editor). D. Reidel publishing company, Dordrecht.
Caillère, S., Henin, S. & Rautureau, M. (1989) Les argiles. Septima, Paris, 126 pp.
Carignan, J., Hild, P., Mevelle, G., Morel, J. & Yeghicheyan, D. (2001) Routine analyses of trace elements in geological samples using flow injection and low pressure on-line liquid chromatography coupled to ICP-MS: a study of geochemical reference materials BR, DR-N, UB-N, AN-G and GH. Geostandard Newsletters, 25, 1, 87-198.
Cases, J.M., Liétard, O., Yvon, J. & Delon, J.F. (1982) Etude des propriétés cristallochimiques, morphologiques, superflcielles de kaolinites désordonnées. Bulletin de Mineralogie, 105, 439455.
De Donate, P., Villiéras, F., Barres, O. & Yvon, J. (1993) Sur la possibilité d'observer les vibrations de valence OD aux dilutions naturelles: apport de la spectro-métrie IRTF en réflexion diffuse. Comptes Rendus de l'Académie des Sciences, Paris, 316, 17571762.
De Donate, P., Cheilletz, A., Barres, O. & Yvon, J. (2004). Infrared spectroscopy of OD vibrators in minerals at natural dilution: hydroxyl groups in talc and kaolinite, and structural water in beryl and emerald. Applied Spectroscopy, 58, 521527.
Delineau, T., Allard, T., Muller, J.-P., Barres, O., Yvon, J. & Cases, J.-M. (1994) FTIR reflectance vs EPR studies of structural iron in kaolinites. Clays and Clay Minerals, 42, 308320.
Déruelle, B., Moreau, C., Nkoumbou, C., Kambou, R., Lissom J. Njonfang, E. & Nono, A. (1991) The Cameroon Line: a review. Pp. 274327 in: Magmatism in Extensional Structural Settings (Kampunzu, A.B. & Lubala, R.T.). Springer, Berlin.
Djangang, C., Elimbi, A., Nkoumbou, C., Lecomte, G., Melo, U.C., Yvon, J., Bonnet, J.P. & Njopwouo, D. (2007) Characteristics and ceramics properties (1200-1500°C) of clays from Mayouom deposit, West Cameroon. Industrial Ceramics, 27, 7988.
Dupain, R., Lanchon, R. & Saint-Arroman, J.C. (2000) Granulats, sols ciments et betons,. Casteilla, Paris, 136 pp.
Elimbi, A. & Njopwouo, D. (2002) Firing characteristics of ceramics from the Bomkoul kaolinitic clay deposit (Cameroun). Tile & Brick International, 18, 364369.
Fan, H., Song, B. & Li, Q. (2006) Thermal behavior of goethite during transformation to hematite. Materials Chemistry and Physics, 98, 148153.
Farmer, V.C. (1974) The layer silicates. Pp 331364 in: The Infrared Spectra of Minerals (Farmer, V.C., editor). Mineralogical Society, London.
Franco, F., Pérez-Maqueda, L.A. & Pérez-Rodriguez, J.L. (2003) The influence of ultrasound on the thermal behaviour of a well ordered kaolinite. Thermochimica Ada, 404, 7179.
Fripiat, J.J. & van Olphen, H. (1979) Data Handbook for Clay Materials and Other Non-Metallic Minerals. Pergamon Press, New York, 319333.
Heide, K. & Földvari, M. (2006) High temperature mass spectrometric gas-release studies of kaolinite Al2[Si2O5(OH)4] decomposition. Thermochimica Ada, 446, 106112.
Holdridge, D.A. & Vaughan, F. (1957) The kaolin minerals (kandites). Pp. 98139 in: The Differential Thermal Investigation of Clays (Mackenzie, R.C., editor). Mineralogical Society, London.
Kamga, R., Nguetnkam, J.P. & Villiéras, F. (2001) Caracterisation des argiles du Nord Cameroun en vue de leur utilisation dans la decoloration des huiles végétales. Pp. 247257 in : Actes de la première conférence sur la valorisation des matériaux argileux au Cameroun (Nkoumbou, C. & Njopwouo, D., editors). Yaoundé, Cameroon.
Karakas, Z. & Kadir, S. (2000) Devritrification of volcanic glasses in Konya volcanic units, Turkey. Turkish Journal of Earth Sciences, 9, 3946.
Kuepouo, G., Tchouankoue, J.-P., Takahashi, N. & Sato, H. (2006) Transitional tholeiitic basalts in the Tertiary Bana volcano-plutonic complex, Cameroon Line. Journal of African Earth Sciences, 45, 318332.
Lee, S.Y. & Kim, S.J. (2002) Adsorption of naphtalene by HDTMA modified kaolinite and halloysite. Applied Clay Science, 22, 5563.
Levin, E.M., Robbins, C.R. & McMurdie, H.F. (1969) Phase Diagrams for Ceramists. The American Ceramic Society, Columbus, Ohio. 156 pp.
Ligas, P., Uras, I., Dondi, M. & Marsigli, M. (1997) Kaolinitic materials from Romana (North-West Sardinia, Italy) and their ceramic properties. Applied Clay Science, 12, 145163.
Loughnan, F.C. & Craig, D.C. (1960) An occurrence of fully-hydrated halloysite at Muswellbrook, N.S.W. The American Mineralogist, 45, 783790.
Mackenzie, R.C. (1957) The oxides of iron, aluminium and manganese. Pp. 299328 in: The Differential Thermal Investigation of Clays (Mackenzie, R.C., editor). Mineralogical Society, London.
Nguetnkam, J.P. (2004) Les argiles des vertisols et des sols fersiallitiques de 1'Extrême-Nord du Cameroun: genèse, propriétés cristallochimiques et texturales, typologie et applications à la décoloration des huiles végétales. PhD Thesis, University of Yaoundé, Cameroon.
Nguetnkam, J.P., Kamga, R., Villiéras, F., Ekodeck, G.E. & Yvon, J. (2007) Pedogenic formation of smectites in a vertisol developed from granitic rock from Kaele (Cameroon, Central Africa). Clay Minerals, 42, 487501.
Njopwouo, D. (1984) Minéralogie et physico-chimie des argiles de Bomkoul et de Balengou (Cameroun). Utilisation dans la polymérisation du styrène et dans le renforcement du caoutchouc naturel. PhD Thesis, University of Yaoundé, Cameroon, 300 pp.
Njopwouo, D., Roques, G. & Wandji, R. (1987) A contribution to the study of the catalytic action of clays on the polymerization of styrene: I. Characterization of polystyrenes. Clays Minerals, 22, 145156.
Njopwouo, D., Roques, G. & Wandji, R. (1988) A contribution to the study of the catalytic action of clays on the polymerization of styrene: Reaction mechanism. Clay Minerals, 23, 3543.
Njoya, A., Nkoumbou, C., Grosbois, C., Njopwouo, D., Njoya, D., Courtin-Nomade, A., Yvon, J. & Martin, F. (2006) Genesis of Mayouom kaolin deposit (Western Cameroon). Applied Clay Science, 32, 125140.
Njoya, D., Elimbi, A., Nkoumbou, C., Njoya, A., Njopwouo, D., Lecomte, G. & Yvon, J. (2007) Contribution à l'étude physicochimique et minéralogique de quelques échantillons d'argiles de Mayouom (Cameroun). Annales de Chimie: Sciences des Matériaux, 32, 5568.
Nkoumbou, C., Njopwouo, D., Villiéras, F., Njoya, A., Yonta Ngouné, C., Ngo Ndjock, L., Tchoua, F. & Yvon, J. (2006) Talc indices from Boumnyebel (Central Cameroon), physico-chemical characteristics and geochemistry. Journal of African Earth Sciences, 45, 6173.
Nkoumbou, C., Villiéras, F., Njopwouo, D., Yonta Ngouné, C., Barrès, O., Pelletier, M., Razafitianaharavo, A. & Yvon, J. (2008a) Physicochemical properties of talc ore from three deposits of Lamal Pougue area (Yaounde Pan- African belt, Cameroon), in relation to industrial uses. Applied Clay Science, doi:10.1016/j.clay.2007.10.006.
Nkoumbou, C., Villiéras, F., Njopwouo, D., Barres, O., Bihiannic, I., Pelletier, M., Razafitianamaharavo, A., Metang, V., Yonta Ngoune, C. & Yvon, J. (2008b) Physicochemical properties of talc ore from Poutkelle and Memel deposits (Central Cameroon). Clay Minerals, 43, 317337.
Petit, S. & Decarreau, A. (1990) Hydrothermal (200°C) synthesis and crystal chemistry of iron-rich kaolinites. Clay Minerals, 25, 181196.
Qtaitat, M.A. & Al-Trawneh, I.N. (2005) Characterization of kaolinite of the Baten El-Ghoul region south Jordan by infrared speetroseopy. Spectrochimica Acta, A61, 15191523.
Quantin, P., Gautheyrou, J. & Lorenzoni, P. (1988) Halloysite formation through in situ weathering of volcanic glass from trachytic pumices, Vico's volcano, Italy. Clay Minerals, 23, 423437.
Ruan, H.D., Frost, R.L., Kloprogge, J.T. & Duong, L. (2002) Infrared speetroseopy of goethite dehydroxylation. II. Effect of aluminium substitution on the behaviour of hydroxyl units. Spectrochimica Acta, A58, 479491.
Soro, N.S. (2003) Influence des ions fer sur les transformations thermiques de la kaolinite. PhD Thesis, University of Limoges, France, 158 pp.
Villiéras, F. (1993) Etude des modifications des proprietes du talc et de la chlorite par traitement thermique. PhD Thesis, E.N.S.G., I.N.P.L., Nancy, France, 248 pp.
Wouatong, G.A., Kitagawa, R., Takeno, S., Tchoua, F.M. & Njopwouo, D. (1996) Morphological transformation of kaolin minerals from granite saprolite in the Western part of Cameroon. Clay Science, 10, 6781.
Yalcin, A. (2007) The effect of clays on landslides: a case study. Applied Clay Science, 38, 7785.
Yvon, J., Baudracco, J., Cases, J.M. & Weiss, J. (1990) Eléments de minéralogie quantitative en micro-analyse des argiles. Pp. 473489 in: Matériaux Argileux, Structures, Propriétés et Applications (Decarreau, A., editor). SFMC — GFA, Paris.
Yvon, J., Cases, J.M., Villiéras, F., Michot, L. & Thomas, F. (2002) Les minéraux techniques naturels: connaissance, typologie et propriétés d'usage. Comptes Rendus Geoscience, Paris, 334, 717730.

Keywords

Characterization for industrial applications of clays from Lembo deposit, Mount Bana (Cameroon)

  • P. Pialy (a1) (a2), C. Nkoumbou (a2) (a3), F. Villiéras (a3), A. Razafitianamaharavo (a3), O. Barres (a3), M. Pelletier (a3), G. Ollivier (a3), I. Bihannic (a3), D. Njopwouo (a1), J. Yvon (a3) and J-. P. Bonnet (a4)...

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