scholarly journals Experimental study of the extraction of chromium (III) from nitrate medium by lauric acid

10.30544/385 ◽  
2018 ◽  
Vol 24 (3) ◽  
pp. 189-197
Author(s):  
Amel Guerdouh ◽  
Djamel Barkat
Keyword(s):  
Lauric Acid ◽  
Methyl Isobutyl Ketone ◽  
Ph Value ◽  
Extraction Yield ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Nitrate Medium ◽  
Nonpolar Solvents ◽  
Extraction Constants ◽  
Maximum Extraction

The solvent extraction of chromium (III) with lauric acid (HL) at 25°C is studied as a function of various parameters: pH of the aqueous phase, the concentration of lauric acid and the nature of the solvent. The solvent effects on the extraction of chromium (III) using polar and nonpolar solvents has been observed. It was shown that extracted species of the [Cr(OH)L2·2HL] formula are formed in cyclohexane, dichloromethane, chloroform, and toluene. However, in 1- -octanol or methyl isobutyl ketone, it was found a complex of the type [Cr(OH)L2]. The extraction constants and extraction yield (%E) are also calculated for different solvents. It was found that cyclohexane is the preferred solvent for this extraction system, The maximum extraction yield is accomplished using the cyclohexane as a solvent on 1:1 L/L ratio, and pH value of 4.73.

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

Densities and refractive indexes of binary mixtures in the system methyl isobutyl ketone-2-butanol. Mathematical relations obtained

1980 ◽  
Vol 25 (4) ◽  
pp. 318-320 ◽  
Author(s):  
Roque Riggio ◽  
Mariana Hernandez Ubeda ◽  
Juan F. Ramos ◽  
Hector E. Martinez
Keyword(s):  
Binary Mixtures ◽  
Methyl Isobutyl Ketone ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Mathematical Relations

Solvent Extracting Studies of Tantalum Fluoride Complexes withN-Benzoylphenylhydroxylamine, Tri-n-octylphosphine Oxide and Methyl Isobutyl Ketone Using Computer Techniques.

1965 ◽  
Vol 37 (8) ◽  
pp. 1003-1009 ◽  
Author(s):  
L. P. Varga ◽  
W. D. Wakley ◽  
L. S. Nicholson ◽  
M. L. Madden ◽  
J. Patterson
Keyword(s):  
Methyl Isobutyl Ketone ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Fluoride Complexes

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.

Ternary liquid equilibria of the water-phosphoric acid-isoamyl alcohol, cyclohexanol, or methyl isobutyl ketone systems at 35.deg.

1968 ◽  
Vol 13 (2) ◽  
pp. 194-196 ◽  
Author(s):  
Parameswaran. Ananthanarayanan ◽  
Paluri Bhimeswara. Rao
Keyword(s):  
Phosphoric Acid ◽  
Methyl Isobutyl Ketone ◽  
Isoamyl Alcohol ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone

Some Physical Properties of Diacetone Alcohol, Mesityl Oxide and Methyl Isobutyl Ketone

1952 ◽  
Vol 56 (8) ◽  
pp. 1013-1016 ◽  
Author(s):  
E. T. J. Fuge ◽  
S. T. Bowden ◽  
W. J. Jones
Keyword(s):  
Physical Properties ◽  
Methyl Isobutyl Ketone ◽  
Mesityl Oxide ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Diacetone Alcohol

Synthesis, characterization of MCM-22 and catalytic activity in one-step synthesis of methyl isobutyl ketone

2005 ◽  
Vol 84 (1) ◽  
pp. 129-135 ◽  
Author(s):  
Piaoping Yang ◽  
Jianfeng Yu ◽  
Zhenlü Wang ◽  
Meiping Xu ◽  
Qingsheng Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Methyl Isobutyl Ketone ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
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