Temperature dependence of saturated vapour pressures of methyl isobutyl ketone, diisobutyl ketone, 1,1-difluorotetrachloroethane, and 1,2-difluorotetrachloroethane

1989 ◽  
Vol 54 (11) ◽  
pp. 2868-2871 ◽  
Author(s):  
Václav Svoboda ◽  
Zdena Adamcová ◽  
Vladimír Kubeš
Keyword(s):  
Temperature Dependence ◽  
Pressure Range ◽  
Methyl Isobutyl Ketone ◽  
Static Method ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Temperature Range ◽  
Saturated Vapour

Temperature dependence of saturated vapour pressures of methyl isobutyl ketone, diisobutyl ketone, 1,1-difluorotetrachloroethane, and 1,2-diflurotetrachloethane was measured. A static method was used, and the measurements were carried out in the temperature range of 261 to 353 K and in the pressure range of 0.5-49 kPa.

scholarly journals Excess/deviation properties of binary mixtures of 2,5-dimethylfuran with furfuryl alcohol, methyl isobutyl ketone, 1-butanol and 2-butanol at temperature range of (293.15–323.15) K

2018 ◽  
Vol 73 ◽  
pp. 64 ◽  
Author(s):  
Mohammad Ridha Mahi ◽  
Faiza Ouaar ◽  
Amina Negadi ◽  
Indra Bahadur ◽  
Latifa Negadi
Keyword(s):  
Binary Mixtures ◽  
Furfuryl Alcohol ◽  
Methyl Isobutyl Ketone ◽  
Polynomial Equation ◽  
Liquid Mixtures ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Temperature Range ◽  
Structure Factors ◽  
Experimental Values

Experimental values of density and speed of sound for binary liquid mixtures of 2,5-dimethylfuran (2,5-DMF) with furfuryl alcohol (FA), methyl isobutyl ketone (MIBK), 1-butanol and 2-butanol and over the entire composition range of 2,5-DMF and at the temperature range of 293.15–323.15 K at 10 K intervals and at pressure p = 0.1 MPa were reported. Experimental data were used to assess the thermodynamics properties of studied mixtures. These properties were used to interpret the molecular interactions among component of liquids. The values of excess/deviation functions have been fitted to Redlich−Kister type polynomial equation. From the obtained results, a discussion was carried out in terms of nature of intermolecular interactions and structure factors in the binary mixtures.

Determination of Some Nitrophenols by Atomic Absorption Spectrometry (AAS) After Extraction of Ionic Associates Involving the Bipyridylocopper(II) or Phenanthrolinocopper(II) Complex

1994 ◽  
Vol 59 (10) ◽  
pp. 2227-2234 ◽  
Author(s):  
Václav Stužka ◽  
Jaromír Souček
Keyword(s):  
Molecular Weight ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Methyl Isobutyl Ketone ◽  
Absorption Spectrometry ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Indirect Determination ◽  
Ionic Associates

A new method has been developed for the indirect determination of nitroso- and nitrophenols by atomic absorption spectrometry (AAS) after extraction of ionic associates involving bipyridylocopper(II) (CuDP) or phenanthrolinocopper(II) (CuPH) complexes. Nitrobenzene and methyl isobutyl ketone appeared to be suitable for the extraction. It was possible to determine several tenths to hundredths of a milligram of nitrophenol in a litre. Extractable associates with CuDP and CuPH are formed by phenols possessing two substituents or by higher molecular weight phenols such as naphthol or hydroxyquinoline. Monosubstituted phenols fail to form associates of this kind.

Ce and Ca/Nb doped Pd-mesocellular foam catalysts for gas-phase conversion of acetone to methyl isobutyl ketone

2021 ◽  
pp. 111169
Author(s):  
Kalina Grzelak ◽  
Rouzana Pulikkal Thumbayil ◽  
Søren Kegnæs ◽  
Maciej Trejda ◽  
Anders Riisager
Keyword(s):  
Gas Phase ◽  
Methyl Isobutyl Ketone ◽  
Phase Conversion ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone

Ternary vapour-liquid equilibria in the system: benzene-cyclohexane-methyl isobutyl ketone

1958 ◽  
Vol 9 (1) ◽  
pp. 69-73 ◽  
Author(s):  
P. Dakshinamurty ◽  
G. Jayarama Rao ◽  
M.V.R. Acharya ◽  
C. Venkata Rao
Keyword(s):  
Methyl Isobutyl Ketone ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone

scholarly journals Tantalum and Niobium Selective Extraction by Alkyl-Acetophenone

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 654 ◽  
Author(s):  
Moussa Toure ◽  
Guilhem Arrachart ◽  
Jean Duhamet ◽  
Stephane Pellet-Rostaing
Keyword(s):  
Extraction Efficiency ◽  
Methyl Isobutyl Ketone ◽  
Selective Extraction ◽  
Extraction Process ◽  
Liquid Extraction ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Waste Solution ◽  
Liquid Liquid Extraction ◽  
D Values

A study has been carried out on Ta and Nb recovery by a liquid-liquid extraction process using 4-methylacetophenone (4-MAcPh) as the organic phase. The 4-MAcPh was compared to methyl isobutyl ketone (MIBK) with respect to extraction efficiencies (D values) at different concentrations of H2SO4 in the aqueous phase. The results showed a similar extraction of Nb for both solvents. However, for Ta, extraction efficiency is increased by a factor of 1.3 for 4-MAcPh. In addition, the MIBK solubilized completely after 6 mol∙L−1 of H2SO4 against only a loss of 0.14–4% for 4-MAcPh between 6 and 9 mol∙L−1 of H2SO4. The potential of 4-MAcPh has also been studied to selectively recover Ta from a model capacitor waste solution. The results showed a selectivity for Ta in the presence of impurities such as Ag, Fe, Ni and Mn. The 4-MAcPh also presents the advantage of having physicochemical properties adapted to its use in liquid-liquid extraction technologies such as mixer-settlers.

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