Reverse aggregate nucleation induced by acids in liquid–liquid extraction processes

2014 ◽  
Vol 16 (16) ◽  
pp. 7339 ◽  
Author(s):  
Christophe Déjugnat ◽  
Sandrine Dourdain ◽  
Véronique Dubois ◽  
Laurence Berthon ◽  
Stéphane Pellet-Rostaing ◽  
...  
Keyword(s):  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Extraction Processes

scholarly journals Application of NEAT for the Simulation of Liquid-liquid Extraction Processes with Poorly Specified Feeds

2021 ◽  
Author(s):  
Fabian Jirasek ◽  
Jakob Burger ◽  
Hans Hasse
Keyword(s):  
Liquid Extraction ◽  
Target Component ◽  
Test Cases ◽  
Separation Processes ◽  
Nmr Spectrum ◽  
Liquid Liquid Extraction ◽  
Full Knowledge ◽  
Extraction Processes ◽  
Chemical Groups ◽  
Fluid Separation

The conceptual design of fluid separation processes is particularly challenging if the considered mixtures are poorly specified, since classical thermodynamic models cannot be applied when the composition is unknown. We have recently developed a method (NEAT) to predict activity coefficients in such mixtures. It combines the thermodynamic group contribution concept with the ability of NMR spectroscopy to quantify chemical groups. In the present work, we describe how NEAT can be applied to equilibrium stage simulations of liquid–liquid extraction processes with poorly specified feeds. Only a single 13C NMR spectrum of the feed is needed for predicting the distribution of a target component for different process parameters, such as temperature or extracting agent. The predictions from several test cases are compared to results that are obtained using the full knowledge on the composition of the feed and surprisingly good agreement is found.

Separation and Purification of Lipases by Liquid-Liquid Extraction Processes

1996 ◽  
pp. 551-576 ◽  
Author(s):  
M. G. Carneiro-Da-Cunha ◽  
E. P. Melo ◽  
M. J. Sebastião ◽  
M. R. Aires-Barros ◽  
J. M. S. Cabral
Keyword(s):  
Liquid Extraction ◽  
Separation And Purification ◽  
Liquid Liquid Extraction ◽  
Extraction Processes

scholarly journals Stoichiometry of An(iii)–DMDOHEMA complexes formed during solvent extraction

2018 ◽  
Vol 47 (32) ◽  
pp. 10906-10914 ◽  
Author(s):  
Patrik Weßling ◽  
Michael Trumm ◽  
Andreas Geist ◽  
Petra J. Panak
Keyword(s):  
Solvent Extraction ◽  
Fission Products ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Extraction Processes

N,N′-Dimethyl,N,N′-dioctylhexylethoxymalonamide (DMDOHEMA) is used to separate An(iii) and Ln(iii) from fission products in several liquid–liquid extraction processes that aim at recycling actinides.

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