شماره ركورد كنفرانس :
4518
عنوان مقاله :
Effect of template source on hydrothermally synthesis of SAPO-34 molecular sieves with small crystals
Author/Authors :
S. Askari Faculty of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic) , H. Hajfarajollah Amirkabir University of Technology (Tehran Polytechnic) , R. Halladj Amirkabir University of Technology (Tehran Polytechnic) , F. Marzpour Amirkabir University of Technology (Tehran Polytechnic)
كليدواژه :
SAPO-34 , SAPO-5 , hydrothermal synthesis , template source
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
Several samples were synthesized under hydrothermal conditions by using TEAOH, DEA (diethylamine), TEA(triethylamine) and morpholine as structure-directing agents. The significance of template on crystal phase, morphology, crystal size and crystallinity were studied. SAPO-5 and SAPO-34 molecular sieves with different crystal size in the range of 300 nm-10 μm were formed, using different template. The SAPO crystals were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Energy-dispersive X-ray spectroscopy (EDX). The results show that TEAOH is the most proper template for SAPO-34 synthesis whereas TEA is an appropriate template of SAPO-5. DEA and morpholine however can produce SAPO-34 or SAPO-5 depending on their concentration used.
