Ring conversion of γ-butyrolactone into N-methyl-2-pyrrolidone over modified zeolites

Autor:	Young-Seek Yoon, Byong-Sung Kwak, Hyun Khil Shin
Rok vydání:	2002
Předmět:	Reaction mechanism Methylamine Process Chemistry and Technology Inorganic chemistry chemistry.chemical_element General Chemistry Copper Catalysis Metal chemistry.chemical_compound chemistry N-Methyl-2-pyrrolidone Yield (chemistry) visual_art visual_art.visual_art_medium Zeolite
Zdroj:	Catalysis Communications. 3:349-355
ISSN:	1566-7367
DOI:	10.1016/s1566-7367(02)00138-3
Popis:	Catalytic activities of metal ion exchanged zeolites for the ring conversion of γ-butyrolactone (GBL) with methylamine (MA) into N -methyl-2-pyrrolidone (NMP) were investigated using a continuous fixed bed reactor system. Among the zeolites tested, cation exchanged Na-BEA zeolite was more active than cation exchanged Na-X or Na-Y. Copper or calcium ion exchanged catalysts showed the highest yield among the cation exchanged Na-BEA zeolites. Furthermore, the activity was maintained for more than 300 h over these catalysts. It is assumed that the catalytic activities of the metal ion exchanged zeolites for the reaction are more or less related to the Lewis acidic properties of catalysts. A simple reaction mechanism is proposed based on the reaction and characterization studies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::817466cf9d699f87bb2150ddbc3c1deb https://doi.org/10.1016/s1566-7367(02)00138-3 Zobrazit plný text záznamu Full Text from ScienceDirect