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
1994 ◽  
Vol 59 (10) ◽  
pp. 2227-2234 ◽  
Author(s):  
Václav Stužka ◽  
Jaromír Souček

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.


Author(s):  
Kalina Grzelak ◽  
Rouzana Pulikkal Thumbayil ◽  
Søren Kegnæs ◽  
Maciej Trejda ◽  
Anders Riisager

1980 ◽  
Vol 25 (4) ◽  
pp. 318-320 ◽  
Author(s):  
Roque Riggio ◽  
Mariana Hernandez Ubeda ◽  
Juan F. Ramos ◽  
Hector E. Martinez

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

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 654 ◽  
Author(s):  
Moussa Toure ◽  
Guilhem Arrachart ◽  
Jean Duhamet ◽  
Stephane Pellet-Rostaing

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.


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

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