Solubilities of gaseous butadiene and butene‐2 in possible extractive distillation solvents

Asatani, Haruki; Hayduk, Walter

doi:10.1002/cjce.5450610214

Cited by 23 publications

(25 citation statements)

References 10 publications

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“…For dry DMA at 298K we could collect values of log K s and log P s for 102 solutes, from primary data on the solubility of gases and vapors, 15, 32, 33, 34, 44, 50, 52, 69, 70, 71,72 and on the solubility of solids. 56, 57, 59, 61, 73, 74, 75 Methyl 4-hydroxybenzoate was again an outlier, to leave 101 data points, as shown in Table S2.…”

Section: Resultsmentioning

confidence: 99%

Partition of compounds from water and from air into amides

2009

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Literature data on partitioning of compounds from the gas phase to a number of amides and from water to the amides has been collected and analyzed through the Abraham solvation equations. The resulting equations are statistically good enough to be used for the prediction of further partition coefficients, and allow deductions to be made about the chemical properties of the amides, as solvents. For example, tertiary amides have no hydrogen bond property at all, secondary amides are rather weak hydrogen bond acids, and primary amides are stronger hydrogen bond acids than are alcohols as solvents. Equations for partitioning from the gas phase to amide solvents can also be used to test if the amides are possible models for a number of biological phases and biological processes. It is shown that no organic solvent is a suitable model for phases such as blood, brain, muscle, liver, heart or kidney, but that a number of rather non-polar solvents are models for fat. N-methylformamide is shown to be the best (and excellent) model for eye irritation and nasal pungency in humans, suggesting that the receptor site in these processes is protein-like.

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Section: Resultsmentioning

confidence: 99%

Partition of compounds from water and from air into amides

2009

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“…Originally, Asatani and Hayduk [17] suggested a spiral tube type of solubility apparatus for measurement of gas solubility. This apparatus was modified by Hayduk et al [18].…”

Section: Methodsmentioning

confidence: 99%

“…The adjustable parameter of the NRTL-NRF model may be written as (15) Equation (12) when l = j may be written as (16) and the molar excess Gibbs free energy for the multicomponent system may be written as (17) where (18) (19) x ij…”

Section: The Nrtl-nrf Modelmentioning

confidence: 99%

Correlation and Prediction of the Solubility of CO2 in a Mixture of Organic Solution Solvents

Pazuki¹,

Pahlavanzadeh

2005

Theor Found Chem Eng

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The solubility of carbon dioxide in a mixture of organic solvents was measured at atmospheric pressure in the temperature range of 10-25 ° C. The solubility of carbon dioxide in the mixture of organic solvents was obtained by using experimental data. In addition, the adjustable parameters of the local composition based models such as the Wilson, the NRTL, and the NRTL-NRF were determined by fitting the experimental data and the results of these models. The results show that the Wilson and the NRTL-NRF models used for the estimation of the CO2 solubility in the mixture of organic solvents used in this work attained relatively better results than the other models.

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“…Other efficient solvents for the extractive distillation of butadiene are given in [82]; e.g., methoxypropionitrile is used in some plants [85,86]. C 4 acetylenes can be removed by selective hydrogenation of the crude C 4 feedstock.…”

Section: Isolation Of Butadiene From C 4 Steam Cracker Fractionsmentioning

confidence: 99%