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o-Cresol

About: o-Cresol is a research topic. Over the lifetime, 70 publications have been published within this topic receiving 1185 citations. The topic is also known as: ortho-Cresol & 2-Cresol.


Papers
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Patent
14 Feb 1984
TL;DR: In this paper, an o-methylated phenolic compound using a catalytic vapor-phase reaction of phenol and/or o-cresol with methanol using a catalyst containing vanadium oxide and iron oxide calcined at a specific temperature and supported on a specific amount of silica.
Abstract: PURPOSE:To obtain a phenolic compound having a methyl group at the o-position economically, by the catalytic vapor-phase reaction of the titled compound with methanol using a catalyst containing vanadium oxide and iron oxide calcined at a specific temperature and supported on a specific amount of silica. CONSTITUTION:An o-methylated phenolic compound useful as a raw material of polyphenylene oxide, agricultural chemicals, pharmaceuticals, etc., is prepared by the catalytic vapor-phase reaction of phenol and/or o-cresol with methanol using a catalyst containing vanadium oxide and iron oxide calcined at >=550 deg.C, preferably 650-900 deg.C and supported on 10-80wt%, preferably 20-80wt% of silica. The objective o-methylated phenolic compound can be prepared economically in an industrial scale, because the catalyst has excellent activity and selectivity, and sufficiently high strength to endure the long-term reaction even in the absence of water in the reaction system.

4 citations

Journal ArticleDOI
TL;DR: In this paper, a reversed-phase HPLC was used to measure the adsorption isotherm of phenol and o-cresol in pure and mixed state.
Abstract: There is a considerable industrial interest in both the scale-up and optimization of chromatographic operations used in the purification of fine chemicals and biomolecules. One of the major factors affecting the adsorption operation is the adsorption isotherm. Reversed-phase high-performance liquid chromatography (RP-HPLC) was used to measure the adsorption isotherm of phenol ando-cresol. From the experimental results, the retention times were decreased with increasing sample sizes, and the front of the peak was very stiff, so Langmuir adsorption isotherm was applied. Also Early-eluting component, phenol, in a mixture of the two components elutes faster than that in a pure component. Pulsed-injection method (PIM) was used to determine the two parameters of the Langmuir isotherm. The resulting parameters, a and b, were used to calculate the elution profiles of phenol ando-cresol in pure and mixed state. The agreement between the experimental data and calculated elution profiles was fairly good in a mixture as well as a pure component.

4 citations

Journal ArticleDOI
TL;DR: In this article, the authors studied the effect of two kinds of aqueous solvents: methanol and acetone solutions, on the performance of coal tar extraction.
Abstract: Coal tar is a liquid by-product of the process of coal gasification and carbonation. This liquid oil mixture contains various kinds of useful compounds such as phenol, o-cresol, and p-cresol. These compounds are widely used as raw material for insecticides, dyes, medicines, perfumes, coloring matters, and many others. This research needed to be done that given the optimum conditions for the separation of phenol, o-cresol, and p-cresol from the coal tar by solvent extraction process. The aim of the present work was to study the effect of two kinds of aqueous were used as solvents: methanol and acetone solutions, the effect of temperature (298, 306, and 313K) and mixing (30, 35, and 40rpm) for the separation of phenol, o-cresol, and p-cresol from coal tar by solvent extraction. Results indicated that phenol, o-cresol, and p-cresol in coal tar were selectivity extracted into the solvent phase and these components could be separated by solvent extraction. The aqueous solution of methanol, mass ratio of solvent to feed, Eo/Ro=1, extraction temperature 306K and mixing 35 rpm were the most efficient for extraction of phenol, o-cresol, and p-cresol from coal tar. Keywords—Coal tar, Distribution coefficient, Extraction, Yield.

3 citations

Journal ArticleDOI
TL;DR: In this article, the Wilson equation was used to evaluate the activity coefficients of binary mixtures of phenol + tetralin and ortho-cresol + triacetralin.

3 citations

Journal ArticleDOI
TL;DR: Selvam S.P., Dutt N.V., Balkishan Rao, I.K., and Subba Rao Y.V. as discussed by the authors reported Isobaric boiling point data for the binary systems: phenol + o -cresol, phenol+ p-cresols, o -Cresol + p-Cresols and p -coresol + 2,4-xylenol measured at 26.7 and 96.4 kPa.

3 citations

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20201
20171
20162
20155
20143
20133