Kinetics and mechanism of the interfacial mass transfer of europium(3+) and americium(3+) in the system bis(2-ethylhexyl) phosphate-n-dodecane-sodium chloride-hydrochloric acid-water

1981 ◽  
Vol 85 (24) ◽  
pp. 3646-3651 ◽  
Author(s):  
P. R. Danesi ◽  
G. F. Vandegrift
Keyword(s):  
Mass Transfer ◽  
Sodium Chloride ◽  
Hydrochloric Acid ◽  
Kinetics And Mechanism ◽  
Acid Water ◽  
Interfacial Mass Transfer

Interfacial mass transfer in turbulent flow accompanied by irreversible first order chemical reaction

1979 ◽  
Vol 44 (5) ◽  
pp. 1388-1396
Author(s):  
Václav Kolář ◽  
Zdeněk Brož
Keyword(s):  
Mass Transfer ◽  
Turbulent Flow ◽  
Chemical Reaction ◽  
Experimental Results ◽  
Theoretical Concepts ◽  
First Order ◽  
Order Chemical Reaction ◽  
Interfacial Mass Transfer ◽  
First Order Chemical Reaction

Relations describing the mass transfer accompanied by an irreversible first order chemical reaction are derived, based on the formerly published general theoretical concepts of interfacial mass transfer. These relations are compared with experimental results taken from literature.

DETERMINATION OF TRACE AMOUNTS OF SILVER IN GALENA ORES

1960 ◽  
Vol 38 (9) ◽  
pp. 1488-1494 ◽  
Author(s):  
E. J. Bounsall ◽  
W. A. E. McBryde
Keyword(s):  
Aqueous Solution ◽  
Nitric Acid ◽  
Sodium Chloride ◽  
Hydrochloric Acid ◽  
Chloride Solution ◽  
Sodium Chloride Solution ◽  
Silver Content ◽  
Aqueous Sodium Chloride Solution ◽  
Aqueous Sodium

An analytical method is described for the determination of microgram amounts of silver in galena ores, based on the "reversion" of silver dithizonate. Silver is separated from relatively large amounts of lead by extraction as dithizonate into chloroform from an aqueous 1:99 nitric acid solution. Separation from mercury, which is also extracted under these conditions and would, if present, interfere in the analysis, is achieved by reverting the dithizonate solution with a 5% aqueous sodium chloride solution which is also 0.015 molar in hydrochloric acid. Following dilution of this aqueous solution and adjustment of pH, silver is again extracted into chloroform as the dithizonate, and determined absorptiometrically. Analyses of a number of galena ore samples showed a precision of within 3% for a silver content ranging from 0.03 to 0.4%.Some other methods for isolating silver from these samples, which were tried but found unsatisfactory, are discussed.

scholarly journals Experimental investigation of interfacial mass transfer mechanisms for a confined high‐reynolds‐number bubble rising in a thin gap

AIChE Journal ◽  
2016 ◽  
Vol 63 (6) ◽  
pp. 2394-2408 ◽  
Author(s):  
Matthieu Roudet ◽  
Anne‐Marie Billet ◽  
Sébastien Cazin ◽  
Frédéric Risso ◽  
Véronique Roig
Keyword(s):  
Mass Transfer ◽  
Experimental Investigation ◽  
Reynolds Number ◽  
High Reynolds Number ◽  
Interfacial Mass Transfer ◽  
Bubble Rising ◽  
High Reynolds ◽  
Transfer Mechanisms

Thermal Stability and Safe Venting of the Tri-N-Butyl Phosphate-Nitric Acid-Water (“Red Oil”) System - I: Two-Layer System Mass Transfer Theory

2008 ◽  
Vol 163 (2) ◽  
pp. 285-293 ◽  
Author(s):  
Michael Epstein ◽  
Hans K. Fauske ◽  
Charles F. Askonas ◽  
Marc A. Vial ◽  
Patricia Paviet-Hartmann
Keyword(s):  
Thermal Stability ◽  
Mass Transfer ◽  
Nitric Acid ◽  
Acid Water ◽  
Layer System ◽  
Transfer Theory ◽  
Mass Transfer Theory
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