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High temperature synthesis of SAPO-34: applying an L9 taguchi orthogonal design to investigate the effects of experimental parameters

Dargahi, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.powtec.2011.10.030
  3. Abstract:
  4. SAPO-34 zeolite-like particles were successfully synthesized at high temperature environment. An L9 orthogonal array of the Taguchi method was implemented to investigate the effects of experimental conditions to prepare SAPO-34 with respect to crystallinity of the final product phase. The results showed that the favorable phase crystallinity was improved by increasing the hydrothermal synthesis temperature and organic template content, whereas increasing the water content in synthesis mixture decreased the crystallinity. No significant changes in crystallinity of the final products were observed by increasing the synthesis duration. In addition, zeolite SAPO-5, which was formed as the impurity in the mid temperature runs, was not be formed at high temperature environment due to its low hydrothermal stability
  5. Keywords:
  6. Crystallinity ; High temperature synthesis ; Taguchi orthogonal method ; Crystallinities ; Experimental conditions ; Experimental parameters ; High-temperature environment ; High-temperature synthesis ; Hydrothermal stabilities ; Organic templates ; Orthogonal array ; Orthogonal design ; SAPO-34 ; Taguchi ; Taguchi methods ; Hydrothermal synthesis ; Chabazite ; Silicon substituted aluminophosphate molecular sieve 5 ; Unclassified drug ; Zeolite ; Analytic method ; Controlled study ; Crystallization ; High temperature ; L9 Taguchi method ; Process optimization ; Synthesis ; Temperature sensitivity ; Thermal analysis ; Water content
  7. Source: Powder Technology ; Volume 217 , February , 2012 , Pages 223-230 ; 00325910 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0032591011005730