caa a22 4500 445850612 CHVBK 20180317145412.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1134/S0040579511050186 doi (NATIONALLICENCE)springer-10.1134/S0040579511050186 Extraction of monocarboxylic acids with binary extracting agents based on amines and quaternary ammonium bases [Elektronische Daten] [Yu. Zakhodyaeva, A. Voshkin, V. Belova, A. Khol'kin] The distribution of monocarboxylic acids is reported for extraction systems with binary extracting agents, namely, amine and quaternary ammonium base (QAB) salts of organic acids with widely varied acid dissociation constants (pK a 1.5-10). Monocarboxylic acid extractability orders have been obtained for systems with binary extracting agents based on trioctylmethylammonium and trioctylammonium (TOA). The best extractability is shown by acids with long hydrocarbon radicals (butyric and caproic acids). Lactic acid is the least extractable. Extractive power orders have been obtained for QAB- and TOA-based binary extracting agents. For monocarboxylic acid extraction with QAB salts, the extractive power order correlates with the acid dissociation constants of the parent organic acids: trioctylmethylammonium p-tert-butylphenolate ≫ caprylate > dialkylphosphinate > dialkylmonothiophosphinate > dialkylphosphate > dinonylnaphthalene sulfonate > dialkyldithiophosphinate. The extractive power of the QAB-based binary extracting agents is much higher than that of the TOA salts. Pleiades Publishing, Ltd., 2011 binary extracting agents nationallicence monocarboxylic acids nationallicence extractability nationallicence extraction orders nationallicence recovery nationallicence separation nationallicence Zakhodyaeva Yu Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia aut Voshkin A. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia aut Belova V. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia aut Khol'kin A. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia aut Theoretical Foundations of Chemical Engineering SP MAIK Nauka/Interperiodica 45/5(2011-10-01), 739-743 0040-5795 45:5<739 2011 45 11236 https://doi.org/10.1134/S0040579511050186 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0040579511050186 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zakhodyaeva Yu Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Voshkin A. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Belova V. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Khol'kin A. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia aut NATIONALLICENCE 773 0- Theoretical Foundations of Chemical Engineering SP MAIK Nauka/Interperiodica 45/5(2011-10-01), 739-743 0040-5795 45:5<739 2011 45 11236 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer