The influence of Al containing component on synthesis of analcime of various crystallographic systems

• Autorzy: Balandis A. , Traidaraite A.
• Języki publikacji: EN

Abstrakty

EN

The influence of the form of the Al-containing component, molar ratio of Na2O:Al2O3:SiO2, and the duration of isothermal curing under saturated steam at 180 st.C have been examined. The results obtained experimentally show that the form of the Al-containing component (Al(OH)3 or GammaAl2O3) significantly affects the formation of crystal system of analcime. Pure analcime of the tetragonal crystallographic system forms under saturated steam at 180 st.C after 7 h of isothermal curing, in the presence of considerable excess of NaOH, only when Al(OH)3 is used in the initial mixture. Pure analcime of the cubic crystallographic system forms when GammaAl2O3 is used in the initial mixture of hydrothermal synthesis.

Słowa kluczowe

EN

analcime; zeolite; Al(OH)3; GammaAl2O3; hydrothermal synthesis

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2007
• Tom: Vol. 25, No. 3
• Strony: 637--647
• Opis fizyczny: Bibliogr. 13 poz.

Twórcy

autor

Balandis A.

autor

Traidaraite A.

• Department of Silicate Technology, Faculty of Chemical Technology, Kaunas University of Technology, Radvilenu st. 19, 50254 Kaunas, Lithuania

Bibliografia

• [1] FRYE K., The Encyclopedia of Mineralogy, Nedra, Leningrad, 1985 (in Russian).
• [2] CRUCIANI G., GUALTIERI A., Amer. Mineral., 84 (1999), 112.
• [3] PRASAD A., VAIDYANATHAN T.K., J. Dental Res., 69 (1990), 2.
• [4] DENRY I.L., MACKERT J.R., HOLLOWAY J.A., ROSENSTIEL S.F., J. Dental Res., 75 (1996), 1928.
• [5] RASMUSSEN S.T., GROH C.L., O’BRIEN W.J., Dental Mater., 14 (1998), 202.
• [6] SATAVA V., KLOUZKOVA A., LEZAL D., NOVOTNA M., Ceramics-Silikaty, 46 (2002), 37.
• [7] GHOBARKAR H., SCHAF O., Mater. Sci. Eng. B, 60 (1999), 163.
• [8] PALUBINSKAITE D., SIAUCIUNAS R., SINKEVICIENE I., SADUNAS A., Mater. Sci., 6 (2000), 36.
• [9] SINKEVICIENE I., BALANDIS A., Mater. Sci. Appl. Chem., 3 (2001), 55.
• [10] NOVOTNA M., SATAVA V., MAIXNER J., KLOUZKOVA A., KOSTKA P., LEZAL D., J. Optoelectr., Adv. Mater., 5 (2003), 1405.
• [11] PECHAR F., Cryst. Res. Technol., 24 (1989), 971.
• [12] BRIAN S., MITCHELL A., An Introduction to Materials Engineering and Science for Chemical and Materials Engineers, Wiley, Hoboken, 2004.
• [13] KNUNIANC A., The Encyclopedia of Chemistry, Vol. 1, Soviet Encyclopedia, Moscow, 1988 (in Russian).