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

Guvenir O., KALIPÇILAR H., Culfaz A.

CRYSTAL RESEARCH AND TECHNOLOGY, cilt.46, sa.4, ss.345-350, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 4
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1002/crat.201000513
  • Dergi Adı: CRYSTAL RESEARCH AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.345-350
  • Anahtar Kelimeler: clinoptilolite, crystallization field, sodium-potassium cations, salt additions, ELECTRON-SPIN-RESONANCE, ADSORBATE INTERACTIONS, ETHYLENE DIMERIZATION, ECHO MODULATION, ALUMINOSILICATE, SEED
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Reproducible 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):Al2O3:10SiO(2):110H(2)O at 140 degrees 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. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim