Investigation of fast mass transfer kinetics in solvent extraction using rapid stirring and a porous membrane phase separator

1989 ◽  
Vol 61 (9) ◽  
pp. 1036-1040 ◽  
Author(s):  
Lawrence. Amankwa ◽  
Frederick F. Cantwell
Keyword(s):  
Mass Transfer ◽  
Solvent Extraction ◽  
Porous Membrane ◽  
Membrane Phase ◽  
Mass Transfer Kinetics ◽  
Phase Separator ◽  
Rapid Stirring

scholarly journals Porous membrane phase separator in solvent extraction.

1987 ◽  
Vol 3 (6) ◽  
pp. 583-584 ◽  
Author(s):  
Kousaburo OHASHI ◽  
Syozo KOKUBO ◽  
Shohei TAMURA ◽  
Katsumi YAMAMOTO
Keyword(s):  
Solvent Extraction ◽  
Porous Membrane ◽  
Membrane Phase ◽  
Phase Separator

Use of peak height for quantification in solvent extraction/flow injection analysis

1985 ◽  
Vol 63 (9) ◽  
pp. 2559-2563 ◽  
Author(s):  
Jamal A. Sweileh ◽  
Frederick F. Cantwell
Keyword(s):  
Solvent Extraction ◽  
Flow Rate ◽  
Flow Injection Analysis ◽  
Peak Height ◽  
Membrane Phase ◽  
Flow Rates ◽  
Organic Extract ◽  
Sample Concentration ◽  
Band Dispersion ◽  
Phase Separator

The following equation is derived which expresses peak height (P.H.) in terms of sample concentration injected (CSAMP), detector sensitivity (SF), dilution due to band dispersion (Rv), fraction extracted [Formula: see text], flow rates of carrier (FCarrier), organic phase (Fo), and compensating solvent (Fc), and flow rate of organic extract through the membrane phase separator (FM):[Formula: see text]Each term in the equation is evaluated experimentally to validate the equation.

scholarly journals A study of cerium extraction by TBP and TODGA using a rotating diffusion cell

Nukleonika ◽  
2015 ◽  
Vol 60 (4) ◽  
pp. 859-864 ◽  
Author(s):  
Michael A. Bromley ◽  
Colin Boxall
Keyword(s):  
Mass Transfer ◽  
Solvent Extraction ◽  
Phase Boundary ◽  
Solution Phase ◽  
Diffusion Cell ◽  
Mass Transfer Kinetics ◽  
Interfacial Mass Transfer ◽  
Extraction Processes ◽  
Organic Extractant ◽  
Kinetics Of

Abstract For the study of the coupled interfacial-mass transfer kinetics of, inter alia, TBP, TODGA, CyMe4-BTBP and CyMe4-BTPhen based solvent extraction processes, a new rotating diffusion cell (RDC) apparatus has been established at Lancaster University. RDC studies of Ce(IV)/TBP and Ce(III)/TODGA extraction systems have been undertaken in order to improve the understanding of the chemical and kinetic processes involved. In each case, an interesting dependency on local hydrodynamics at the solution phase boundary with results suggesting that the organic extractant molecules migrate into the aqueous phase in order to capture Ce.

Measurement of self-association and ion-pair dissociation constants by solvent extraction using a membrane phase separator

1982 ◽  
Vol 60 (11) ◽  
pp. 1286-1290 ◽  
Author(s):  
Murray Carmichael ◽  
Frederick F. Cantwell
Keyword(s):  
Solvent Extraction ◽  
Methylene Chloride ◽  
Dissociation Constants ◽  
Extraction Constant ◽  
Ion Pair ◽  
Membrane Phase ◽  
Dimerization Constant ◽  
Self Association ◽  
Phase Separator ◽  
Extraction Isotherms

The "filter-probe" membrane phase separator is used with a gravimetric buret to obtain the following constants at 25 °C by measuring solvent-extraction isotherms: dimerization constant of benzoic acid in chloroform (log K2,HBz = 2.12 ± 0.01); "self-ion-pair extraction" constant of Naloxone into chloroform [Formula: see text]; and ion-pair dissociation constant of tetraethylammonium picrate in methylene chloride (log Kdiss = −4.52 ± 0.09).

Influence of beer flow rate on mass transfer kinetics in beer dialysis

1993 ◽  
Vol 7 (2) ◽  
pp. 123-126 ◽  
Author(s):  
I. Leskošek ◽  
M. Mitrović ◽  
V. Nedović
Keyword(s):  
Mass Transfer ◽  
Flow Rate ◽  
Mass Transfer Kinetics
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