Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지

Synthesis of Kaolinitic Clay Mineral from Amorphous Alumino-Silicate by Hydrothermal Process

비정질 Alumino-Silicate로부터 수열반응에 의한 Kaolinite질 인공점토의 합성에 관한 연구

  • 김남일 (주식회사 행남자기 기술연구소) ;
  • 박계혁 (주식회사 행남자기 기술연구소) ;
  • 정창주 (전남대학교 공과대학 무기재료공학과)
  • Published : 1994.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

This study covers synthetic effect of the various hydrothermal treatments on formation of artificially made kaolinite mineral. The hydrothermal treatment includes the temperature treatment with time duration, addition of seeds, particle size of the starting material used, pH variation and the different types of organic acids. A colloidal silica and alumina sol which are commercially available are used for this study. A colloidal silica and alumina sol are mixed by the atomic ratio of Al/Si = 1, based on the theoretical kaolinite composition and calcined at $600^{\circ}C$ for 8 hours duration. It was found that the kaolinitic clay mineral was well developed; thereby, the different patterns of crystalline mineral are appeared. Spherical type as a crystal form was distinctively formed at the temperature of 20$0^{\circ}C$ to 25$0^{\circ}C$ with short duration time, while platy type as a crystal was highly yielded at 300~35$0^{\circ}C$. Moreover, by adding more than 20 wt% of seed as the natural kaolinitic clay to the starting material is widely distributed and developed when 2 ${\mu}{\textrm}{m}$ or less particle size of the starting material is used; also, when they are heat-treated at the temperature of 25$0^{\circ}C$ with 5 hours duration. With respect of the effect of pH variation on formation of the synthetic kaolinite minerals, the crystalline minerals are highly yielded at less than pH 2 and gradually diminished at more than pH9. Regarding to the effect of different acids on development of the kaolinite mineral, the organic acids with high chelating capacity produces good formation of crystalline minerals; whereas, amine radical-(NH2) is not an effective agent to generate the crystalline minerals.

Keywords

References

  1. 粘土科學 v.25 no.2 Synthesis of kaolinite Tomura, S.
  2. ニユ-セラミツクス v.7 カオリナイトの 合成の基礎硏究 芝崎哨雄;渡村信治;宮脇律郞
  3. 化學技術誌, MOL v.9 注目される人工粘土 芝崎哨雄
  4. セラミツクス v.26 no.4 粘土鑛物の合成と人工粘土 芝崎哨雄
  5. J. Res Nat Bur. Stand. v.15 Hydrothermal Synthesis of Kaohmte, Dickite, Beidellite Andandontronite Ewell, R.H.;Insley, H.V
  6. Econ. Geol v.32 no.607 The Pneumatolytic and Hydrothermal Alteration and Synthesis Silicates Morey;G.W.;Ingerson;E
  7. Kolloid Z. v.107 no.181 Anwendung der Elektronenmikroskopie beim Studium hydrothermaler silikatreaktionen Noll, W.
  8. Mineral Petrog. Mitt. v.48 Uber die Bildungsbedingungen von Kaolin, Montmorilonit, Sericit. Pyrophyllit and Analcim Noll, W.
  9. American Mineralogist v.39 no.11-12 The System Al₂O₄-SiO₂-H₂O R. Roy;R. Osborn
  10. Clay Mineralogist v.7 Hydrothermal Aging of synthetic Alummo-Silicate Gels De Kimpe, C.
  11. Silic Ind v.38 no.10 Etude Des Phase Cristallines Appartenant au System par Al₂O-SiO₂-H₂O₃ Formees par Traitement Hydrothermal de Gels Obtenus par Coprecipitation d'Al(OH)₃ et de S₁(OH)₁ De Vijnck, Y.
  12. Clay and Clays v.26 no.6 Kaolinite Synthesis.Ⅱ.A Review and Discussion of the Factors Influencing Rate Process La Iglesia, A.;Van Oosterwyck-Gastuche, M.C.
  13. Clays & Clay Minerals v.26 Solutions, Minerals and Equilibria. Harper and Row, New York, 450pp, 1965. Iglesia, A and Van Oosterwyck-Gastuche, M.C.;Kaolinite synthesis with an attempt to calculate the thermodynamical ewuilibria. Application to laboratory work and field observation Garrels, R.M.;Christ,, C.L
  14. Am. J Sci. v.267 Thermodynamics of Hydrothermal Systems at Elevated Temperatures and Pressures Helgeson, H.C
  15. Geochim. Cosmochim Acta v.44 Experimental Study of the Alteration Process of Labradorite in Acid Hydrothermal Solutions Tsuzuki, Y.;Suzuki, K.
  16. American J. Science v.277 Calculation of the Thermodynamic Properties of Aqueous Silica and the Solubility of Quartz and Its Polymorphs at High Pressures and Temperatures Walter, J.V.;Helgeson, H.C
  17. Clay and Clays Mineralls v.31 Spherical Kaolinite:Synthesis and Mineralogical Properties Tomura, S.;Shibasaki, Y.;Mizuta, H.;Kitamura, M.
  18. Proc Phys. Soc(London) v.116 The Measurement of Particle size by X-Ray Method F.W. Jones
  19. Clay and Clay Minerals v.11 Variability in Crystallinity Values Among the Kaolin Deposits of the Coastal Plain of Geogia and South Carolina Hinckley, D.N
  20. Clay Minerals v.23 The Hinckley Index for Kaohmtes A. Plancon. R.F. Giese;R. Synder
  21. Clay and Clay Minerals v.17 Crystallization of Kaolinite at Low Temperature from Alumino-Silicate Gel De Kimpe, C.
  22. Soil Science v.73 Crileria for the Characterisation of Kaolinite, Halloysite, and a Related Mineral in Clays and Soils Bramao, L.;Cady. J.G.;Hendricks, S.B;Swerdlow, M.
  23. Clays and Clay Minerals v.33 no.1 Dehydroxylation, Rehydroxylation, and Stability of Kaolinite V.Hurst;A.C Kunkle
  24. The American Mineralogist v.48 A New Polymorph of $Al_2SiO_5$ and Futher Studies in the System Al₂O₃-SiO₂-H₂O Shigeo Aramaki;Rustum Roy
  25. Clay Science v.7 Synthesis of Kaolinite with Dickite Seed:A Study by the Experimental Design Method S. Tomura;Y. shibasaki;R. Miyawaki;H. Mizuta;Y. Yamashita
  26. Precipitation of Kaolinite at 25℃ and 1 atm : Clays and Clay Minerals v.18 Kittrick, J.A.
  27. The Thermodynamic Status of Clay Minerals in Proc. 7th. int. Clay Conf., Bologna, Pavia, 1981 Lippmann;F;H. van Olphen(ed.);F. Veniale(ed.)
  28. American Minerals v.49 no.1 De Kimpe, C.R.;Gastuche, M.C.;Brindely, G.W.
  29. Clay Minerals v.7 no.203 Hydrothermal Aging of Synthetic Alumino-Silicate Gels De Kimpe, C.R.
  30. Clay and Clays Minerals v.23 Hydrothermal Synthese of Amino Acid-montmorillonites and Ammonium-micas A. Tsunashima;F. Kanamaru;S. Ueda;M. Koizumi;T. Matsusbita
  31. Clay and Clays Minerals v.28 no.6 Influence of pH, Concentration and Chelating Power of Prganic Anions on the Synthesis of Aluminum Hydroxides and Oxyhydroxides A. Violante;P. Violante
  32. Soil Science v.120 The catalytic Decomposition of Clay Minerals by Complex Reaction with Humic and Fulvic Acid Tan, K.H.
  33. Bol. Geol. Min. v.82 Sintesis De Minerales a Temperaturea Ordinaria. Estudio Preliminar Linares, J.;Huertas, F.
  34. Journal of the Cermic society of Japan v.101 no.12 Absorbed Cations and Water Flim thickness on the Kaolinitic Clay Surface Y. Shibasaki;K. Tone;M. Kamori
  35. 粘土科學 v.26 no.3 Carbonization of Clay-Organic Complexs and Its Possible Application Oya;Asao