Effect of temperature on o-cresol methylation in a fluidized bed of commercial iron-chromium catalyst TZC-3/1

• Autorzy: Berkowicz G. , Żukowski W. , Baron J.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of the synthesis of 2,6-dimetyhlphenol (26DMP) from o-cresol. The target compound is an important substrate for polymer chemistry. Due to a large amount of o-cresol which is generated as a by-product, during the synthesis of 2,6-dimethylphenol from phenol, the methylation of o-cresol to 2,6-dimethylphenol should be examined as a separate process. The alkylation of o-cresol was carried out in a fluidized bed of commercial iron-chromium catalyst TZC-3/1. Undesirable decomposition of methyl alcohol on the catalyst generates a number of environmentally dangerous by-products such as methane, carbon dioxide, carbon monoxide. The effect of temperature on the yield of the synthesis was investigated. The synthesis process was monitored on-line in the temperature range 310-380°C, completely covering the maximum efficiency of the process. Online analysis of the process by FTIR spectroscopy gave information about products of both methylation of o-cresol and pyrolysis of methanol. The maximum 85% yield of desired 2,6-dimethylphenol with more than 85% conversion of o-cresol was achieved at 340°C, at 1:6 molar ratio of o-cresol:methanol.

Słowa kluczowe

EN

2,6-dimethylphenol; o-cresol methylation; iron-chromium catalyst TZC-3/1; fluidized bed

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2013
• Tom: Vol. 15, nr 3
• Strony: 100--102
• Opis fizyczny: Bibliogr. 20 poz., rys., wykr.

Twórcy

autor

Berkowicz G.

• University of Technology, Department of Inorganic Chemistry and Technology, ul. Warszawska 24, 31-155 Cracow, Poland

autor

Żukowski W.

• University of Technology, Department of Inorganic Chemistry and Technology, ul. Warszawska 24, 31-155 Cracow, Poland

autor

Baron J.

• Cracow University of Technology, Department of Inorganic Chemistry and Technology, ul. Warszawska 24, 31-155 Cracow, Poland

Bibliografia

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Uwagi

W wersji drukowanej brakuje afiliacji dla Berkowicz Gabriela, Żukowski Witold.