Methylation of Aniline over Mn-Cu Ferrites Catalysts

Methylation of Aniline over Mn-Cu Ferrites Catalysts

Rajeev Dixit

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P Gupta

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Samidha Saxena

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Reena Dwivedi

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Devi Ahilya Vishwavidyalaya

Methylation of Aniline over Mn-Cu Ferrites Catalysts

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Abstract

The structural and catalytic properties of the mixed spinel ferrite system Mn 1x Cu x Fe 2 O 4 (x=0, 0.25, 0.5,0.75, 1.0) have been investigated by X-Ray diffraction, Mössbauer and catalytic activity measurements. The variation of lattice parameter, crystallite size, and Mössbauer parameters of the product formed with the variation in the concentration of Cu has been studied. XRD Study revealed the formation of phase pure spinels with FCC cubic structure with particle size ranging from 5.21 nm to 20 nm. Lattice constant values showed constant decrease with increasing concentration. Mössbauer spectra showed the presence of Fe 3+ at both octahedral and tetrahedral sites. These ferrites were used as catalysts in the alkylation of Aniline. A maximum conversion of 80.5 % of aniline with selectivity of 98.6 % towards N-methylaniline (NMA) has been obtained at a temperature 673 K, Methanol : Aniline molar ratio of 5:1 and weight hour space velocity (WHSV) of 0.2 h-1. It was found that the yield is maximum for CuFe 2 O 4 . The result is supported by acidity measurements.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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How to Cite This Article

Rajeev Dixit. 2013. \u201cMethylation of Aniline over Mn-Cu Ferrites Catalysts\u201d. Global Journal of Science Frontier Research - B: Chemistry GJSFR-B Volume 13 (GJSFR Volume 13 Issue B7).

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GJSFR Volume 13 Issue B7

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

Keywords

aniline cubic structure ferrospinel methylation mn-cu ferrites

Submission ReceivedOctober 10, 2013
Peer Review Double Blind
Handling Editor
Accepted November 6, 2013
Published November 18, 2013

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Issue date

December 25, 2013

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Article Matrices

Total Score: 104

Country: India

Subject: Global Journal of Science Frontier Research - B: Chemistry

Authors: Rajeev Dixit, P Gupta, Samidha Saxena, Reena Dwivedi (PhD/Dr. count: 0)

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