METHOD FOR SYNTHESIZING SILICOALUMINOPHOSPHATE-34 MOLECULAR SIEVES USING MONOISOPROPANOLAMINE

A method for synthesizing small crystals of silicoaluminophosphate-34 (SAPO-34) molecular sieves with high structural purity. The method includes first forming a slurry comprising monoisopropanolamine. Then, the slurry is aged to form an aged slurry. Finally, crystallization of silicoaluminophosphat...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG, QIUHUA, KORANNE, MANOJ M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A method for synthesizing small crystals of silicoaluminophosphate-34 (SAPO-34) molecular sieves with high structural purity. The method includes first forming a slurry comprising monoisopropanolamine. Then, the slurry is aged to form an aged slurry. Finally, crystallization of silicoaluminophosphate molecular sieves comprising the SAPO-34 molecular sieves is induced from the aged slurry. L'invention concerne un procédé de synthèse de petits cristaux de tamis moléculaires en silicoaluminophosphate-34 (SAPO-34) ayant une pureté structurale élevée. Le procédé comprend en premier lieu la formation d'une pâte comprenant de la mono-isopropanolamine. Ensuite, la pâte est vieillie pour former une pâte vieillie. Enfin, la cristallisation de tamis moléculaires en silicoaluminophosphate comprenant les tamis moléculaires en SAPO-34 est induite à partir de la pâte vieillie.