Vapor-liquid equilibria for m-cresol/quinoline at temperatures between 523 and 598 K

Niesen, Vicki G.; Yesavage, V.F.

doi:10.1021/je00052a024

Cited by 17 publications

(9 citation statements)

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“…Therefore, strong intermolecular interactions would form between quinoline and MC, thereby resulting in negative deviations from ideality. 30 Table 6 suggests that the activity coefficients of DMP and DIPA are marginally greater than 1.0. This condition indicates that the system is a nonideal solution with positive deviation.…”

Section: ■ Results and Discussionmentioning

confidence: 95%

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Experimental and Predicted Vapor–Liquid Equilibrium for Diisopropanolamine with m-Cresol and 2,6-Dimethylphenol at 20.0 kPa

Wang

Sun

et al. 2018

J. Chem. Eng. Data

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Measurements of isobaric vapor−liquid equilibrium (VLE) results for binary systems of m-cresol (MC) + diisopropanolamine (DIPA) and 2,6-dimethylphenol (DMP) + DIPA and the ternary system of MC + DMP + DIPA were conducted at the pressure of 20.0 kPa. The binary VLE experimental data showed that DIPA had stronger interaction with MC than DMP. The ternary system experimental VLE data showed that DIPA could improve the relative volatility of DMP to MC. The binary experimental data were checked by using Herington area and point test methods, and the checked results were thermodynamically consistent. Meanwhile, the VLE data were correlated by Wilson, nonrandom two-liquid, and universal quasichemical models, and the binary energy interaction parameters for these models were obtained. These activity coefficient models were used to predict the ternary system VLE data. The predictive results suggested that the Wilson model had the best prediction.

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Section: ■ Results and Discussionmentioning

confidence: 95%

“…Quinoline is a polar compound capable of hydrogen bonding through the nitrogen atom. Therefore, strong intermolecular interactions would form between quinoline and MC, thereby resulting in negative deviations from ideality …”

Section: Resultsmentioning

confidence: 99%

Experimental and Predicted Vapor–Liquid Equilibrium for Diisopropanolamine with m-Cresol and 2,6-Dimethylphenol at 20.0 kPa

Wang

Sun

et al. 2018

J. Chem. Eng. Data

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“…A description of the apparatus is presented by Niesen (11), who used the equipment for vapor-liquid equilibrium measurements on the binary pairs (1,2). Ternary data, due to the extra degree of freedom, are considerably more difficult to obtain than binary data.…”

Section: Methodsmentioning

confidence: 99%

Vapor-liquid equilibria for ternary mixtures of m-cresol/quinoline/tetralin at temperatures between 523 and 598 K

DiGiacinto¹,

Yesavage²

1993

J. Chem. Eng. Data

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“…It was found that there is an azeotropic point in mixtures of quinoline with m-cresol (an azeotrope with a maximum boiling point) with a low concentration of the azeotrope-forming agent (m-cresol) [119]. This creates prospects for the use of azeotropic rectification in the isolation of quinoline.…”

Section: Age = -Rt Lnkc = Ahc -T As Cmentioning

confidence: 99%

Complexation of the pyridine bases in the products from the coking of coal with organic solvents (review)

Zaretskii¹

1997

Chem Heterocycl Compd

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Published data on the complexation of pyridine bases with organic substances of various chemical types are reviewed. Examples of the use of these data for the isolation of individual heterocycles are discussed.Heterocyclic nitrogen compounds in the products from coke-chemical production are present in the form of the light pyridine bases (in coke gas, including pyridine and its methyl-and dimethyl-substituted derivatives, and also a certain amount of quinoline) and heavy bases (quinoline, isoquinoline, methylquinolines, acridine, and a certain amount of pyridines) contained in coal tax.The light pyridine bases are extracted from the gas with sulfuric acid followed by treatment with ammonia to decompose the sulfates. The heavy bases, present in the tar, subsequently get into the various fractions of the tar during rectification. According to data in [1], the fractions containing the light pyridine bases contain 69% of pyridine, ___7.5% of methylpyridines (picolines) and dimethylpyridines (lutidines), >0.6% of trimethylpyridines (collidines), and -12% of quinoline. The coal tar contains [1] 0.2% each of quinoline, isoquinoline, and 2-methylquinoline (quinaldine) and also 0.6% of acridine; the content of pyridine and its methyl derivatives is 0.01-0.02% of each.The bulk of the quinoline bases is concentrated in the naphthalene and absorber fractions of the tar, from which 20-25% is extracted by sulfuric acid and subsequent neutralization of the sulfate solution by a solution of alkali and by ammonia solution (or gaseous ammonia). According to data in [2], in the bases of the naphthalene fraction 61.5% constitutes quinoline, -13% isoquinoline, and 7% quinaldine. In the bases of the absorber fraction the quinoline amounts to 28.4%, the isoquinoline to 13.5%, and the quinaldine to 9.54%. Most of the acridine is concentrated in the anthracene fraction (up to 7-8% of the fraction).In industry [1, 3] during the treatment of light pyridine bases (after removal of the phenols with alkali and dehydration) fractions consisting of pure (up to 98%) pyridine (114-1160C) and pyridine-solvent (120-137"C) are isolated by rectification methods. The pyridine-solvent consists of a mixture of pyridine and methylpyridines. The fraction containing most of the ,~-picoline (___74% of the potential amount)is collected in the range of 128-131~ while the fl-picoline fraction is collected in the range of 138-146~ [2]. (The latter contains 10% of ,~,-picoline, 32% of fl-picoline, 36% of,y-picoline, and >21% of 2,6-lutidine.) The fraction containing the lutidine bases is collected in the range of 158-167~ and the collidine fraction is collected in the range of 168-171~ The heavy pyridine bases (quinoline and its derivatives) are extracted from the tar fractions by washing with dilute sulfuric acid (15-17%) followed by decomposition of the sulfates with ammonia solution.The individual light and heavy nitrogen bases are mainly isolated by chemical methods sometimes in conjunction with rectification [2][3][4]. The most laborious is the isolation o...

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Vapor-liquid equilibria for m-cresol/quinoline at temperatures between 523 and 598 K

Abstract: However, it does not necessarily reflect the views of the agency and no official endorsement should be inferred.

Cited by 17 publications

References 1 publication

Experimental and Predicted Vapor–Liquid Equilibrium for Diisopropanolamine with m-Cresol and 2,6-Dimethylphenol at 20.0 kPa

Experimental and Predicted Vapor–Liquid Equilibrium for Diisopropanolamine with m-Cresol and 2,6-Dimethylphenol at 20.0 kPa

Vapor-liquid equilibria for ternary mixtures of m-cresol/quinoline/tetralin at temperatures between 523 and 598 K

Complexation of the pyridine bases in the products from the coking of coal with organic solvents (review)

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