Premium
Purification of wet process phosphoric acid by solvent extraction liquid‐liquid equilibrium at 25 and 40°C of the system water‐phosphoric acid‐methylisobutylketone
Author(s) -
Feki M.,
Fourati M.,
Chaabouni M. M.,
Ayedi H. F.
Publication year - 1994
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450720523
Subject(s) - phosphoric acid , solvent extraction , extraction (chemistry) , solvent , process (computing) , chemistry , liquid–liquid extraction , chromatography , organic chemistry , computer science , operating system
Solubility and liquid‐liquid phase equilibrium data are presented for the ternary system water‐phosphoric acid‐methyl isobutyl ketone at 25 and 40°C. Binodal curves, tie lines and distribution curves have been determined. Hand's method has been used to correlate tie lines and to calculate coordinates of plait points. The heterogeneous region at 40°C appeared to be slightly broader than that at 25°C, and the slopes of tie lines somewhat higher: the solubility of this system increases with decreasing temperature. The distribution curves indicated that methyl isobutyl ketone was an effective extractant for concentrated phosphoric acid solutions only.