Abstract
A novel type of molecular sieve named CFSAPO-1 was synthesised hydrothermally in a system of MA(methylamine)-Al2O3-P2O5-SiO2-H2O at 150°C. The molar composition of reactants was: MA: Al2O3∶P2O5∶SiO2∶H2O=(0.8–1.2)∶1∶(0.8–1.2)∶(0.4–3)∶40. XRD, IR, thermoanalysis, and adsorption studies show that the original product CFSAPO-1 is transformed into a form with molecular sieve properties after calcination. The free dimension of the adsorption window of the form is 5.8–6.2 Å. There were no distinctly thermal effects on the DTA curve at 600°C and 800°C related to two transformations detected by X-ray diffraction.
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He, H., Long, Y. Synthesis and characterization of the novel molecular sieve CFSAPO-1. Journal of Inclusion Phenomena 5, 591–599 (1987). https://doi.org/10.1007/BF00662998
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DOI: https://doi.org/10.1007/BF00662998