Extraction equilibria of 2,4,6-Trinitrophenol by (amberlite LA2+ester) solvents
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Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Extraction equilibria of 2,4,6-Trinitrophenol (picric acid (PAH)) between aqueous and organic phases was investigated at 298.15 K. All experiments was reported on the extraction of picric acid by amberlite LA2 which is secondary amine dissolved in different seven (7) esters such as diethyl malonate, dimethyl phthalate, diethyl glutarate, propyl acetate, diethyl succinate, diethyl sebacate, ethyl propionate, as well as single diluents. Experimental results obtained from batch extraction were evaluated in respect to distribution coefficients (K-D), loading factors (T-T), stoichiometric loading factor (T-S), separation factor (S-f) and extraction efficiency (E). The dimethyl phthalate gave highest synergistic effect with LA2 as extraction efficiency value of 95%. The highest values of possible equilibrium complexation constants for (acid/amine) (1:1) K-11 was determined as 10.969 for dimethyl phthalate at 1.762 mol kg(-1) amine concentration. (C) 2016 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Reactive extraction; Picric acid; Amberlite LA-2; Ester
Kaynak
Fluid Phase Equilibria
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
427
