Crystallization field and rate study for the formation of single phase sodium‐potassium and potassium clinoptilolite

Crystal Research and Technology - Tập 46 Số 4 - Trang 345-350 - 2011
Ö. Güvenir1, Halil Kalıpçılar1, Ali Çulfaz1
1Middle East Technical University, Department of Chemical Engineering, 06531 Ankara, Turkey

Tóm tắt

AbstractReproducible synthesis of clinoptilolite as the single crystalline phase was achieved in the narrow crystallization field at or around the nominal batch composition of 2.1(Na2O+K2O):Al2O3:10SiO2:110H2O at 140 °C. Clinoptilolites of high purity were crystallized in the pure sodium or mixed sodium‐potassium cation systems. Partial replacement of hydroxyl anions with the salts of carbonates or chlorides also yielded clinoptilolite as the single crystalline phase although at lower crystallization rates. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Tài liệu tham khảo

G.GottardiandE.Galli Natural Zeolites (Springer‐Verlag Berlin 1985) p. 256.

10.1016/S0167-2991(01)81183-6

Ames L. L., 1963, Amer. Mineral., 48, 1374

10.1016/0025-5408(67)90151-1

D. B.Hawkins R. A.Sheppard andA. J.GudeIII in: Natural Zeolites: Occurrence Properties Use edited by L. B. Sand and F. A. Mumpton (Pergamon Oxford 1978) pp. 337‐343.

Goto Y., 1977, Amer. Mineral., 62, 330

10.1038/304255a0

C. D.Williams Chem. Commun. 2113 (1997).

Yuan J. S., 2007, Chin. J. Inorg. Chem., 23, 994

10.1016/S0927-6513(96)00063-6

10.1016/S0144-2449(97)00134-6

10.1016/S0927-6513(96)00098-3

10.1016/S1387-1811(98)00131-0

10.1021/jp970700z

10.1021/jp990324d

10.1021/jp0106909

10.1021/jp0108420

10.1016/j.micromeso.2005.07.027

10.1002/elsc.200800030

10.1002/crat.200800358

10.1016/j.cemconres.2009.10.016

Ö.Güvenir Synthesis and characterization of clinoptilolite M. Sc. Thesis (Middle East Technical University Ankara 2005).

Mumpton F. A., 1960, Amer. Mineral., 45, 341

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Thông tin xuất bản

Crystal Research and Technology

Tập 46 Số 4

345-350

Thông tin tác giả