Liquid-Liquid Equilibrium of the Water-Phosphoric Acid-3-Pentanone System at 25°c. A Comparative Study of the Extraction Power of Different Solvents

Purification of wet process phosphoric acid by solvent extraction liquid‐liquid equilibrium at 25 and 40°C of the system water‐phosphoric acid‐methylisobutylketone

“…On the other hand, comparing our results with those for other ketones previously studied by Krupatkin and Shcherbakova (1971) and Marcilla et al (1993), it could be seen that MIBK dissolved more phosphoric acid than any of the other ketones. The binodal curves, critical solubility points, tie lines and partition coefficients were found.…”

“…It shows that an increase in the number of carbon atoms in the chain results in a decreasing solubility of the acid into the organic phase. Moreover, dissobutyketone, the more branched ketone, is the solvent producing the lowest percent extraction: the existence of a branched chain does not have a significant effect on the THE CANADIAN JOURNAL OF CHEMICAL ENGINEERING, VOLUME 72, OCTOBER, 1994 (Krupatkin and Shcherbakova, 1968); (b) W-PA-diethylketone (Marcilla et al, 1993); (c) W-PA-rnethylisobutylketone (the present work; (d) W-PA-methyhexylketone (Krupatkin and Shcherbakova, I97 1); (e) W-PA-diisobutylketone (Krupatkin and Shcherbakova, 1971). This assertion is not respected in the case of ketones.…”

“…A considerable number of solvents has been studied as extractants, including alcohols (Krupatkin and Stepanova, 1970;Bergdorf and Fisher, 1978;Ruiz et al, 1985), ketones (Parameswaran and Paluri, 1968;Krupatkin and Shcherbakova, 1971;Kim et al, 1974;Marcilla et al, 1993) and ethers (Lozano and Garfias, 1978;Ruiz et al, 1987). A considerable number of solvents has been studied as extractants, including alcohols (Krupatkin and Stepanova, 1970;Bergdorf and Fisher, 1978;Ruiz et al, 1985), ketones (Parameswaran and Paluri, 1968;Krupatkin and Shcherbakova, 1971;Kim et al, 1974;Marcilla et al, 1993) and ethers (Lozano and Garfias, 1978;Ruiz et al, 1987).…”

Experimental and correlational study of phase equilibria in aqueous mixtures of phosphoric acid with aromatic hydrocarbons at various temperatures

“…However, further studies in this area are still important and needed for various industrial purposes. As far as the authors are aware, ethers [15−17], ketones [18], heavy alcohols [19], esters [23] and hydrocarbons [25], and tributyl phosphate [26,27] have mainly been used as organic solvents in extraction of PA from water.…”

Liquid phase equilibria of (water+phosphoric acid+1-butanol or butyl acetate) ternary systems at T=308.2K

“…Heavy alcohols, ketones and ethers have mainly been used for extraction of phosphoric acid from aqueous solutions [11][12][13][14][15][16][17][18]. The type of solvent is one of the most important factors that influences the equilibrium characteristics of the extraction of acid from aqueous solutions [19][20][21][22]. From practical and economical aspects, the search for new and suitable organic solvents for the separation of phosphoric acid from water is a current study.…”