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Please use this identifier to cite or link to this item: http://purl.org/purl/2252

Title: Selective alkylation of aniline to N-methyl aniline using chromium manganese ferrospinels
Authors: Nishamol, K
Rahna, K S
Sugunan, S
Keywords: Ferrospinels
Lewis acidity
Spinel ferrites
Aniline alkylation
Issue Date: 2004
Publisher: Elsevier
Abstract: Various compositions of chromium manganese ferrospinels were tested as catalysts for the vapour phase alkylation of aniline with methanol. The samples were prepared by room temperature co-precipitation technique and characterized by various physico-chemical methods. The acidity–basicity determination revealed that the samples possess greater amount of basic sites than acidic sites. All the ferrite samples proved to be selective and active for N-monoalkylation of aniline leading to N-methyl aniline; Cr0.6Mn0.4Fe2O4, Cr0.8Mn0.2Fe2O4 and CrFe2O4 exhibited cent percent selectivity for N-methyl aniline. Neither C-alkylated products nor any other side products were detected for all catalyst samples. The catalytic activity of the samples studied in this reaction is related to their acid–base properties and also on the cation distribution. Under the optimized reaction conditions all the systems showed constant activity for a long duration.
URI: http://dyuthi.cusat.ac.in/purl/2252
ISSN: 1381-1169
Appears in Collections:Dr. Sugunan S

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