Mixed Solvent Extraction. Batch-Extraction Stoichiometric Computations

Hunter, T. G.

doi:10.1021/ie50392a014

Cited by 13 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hunter, Smith, Powers, Cruickshank et al, Treybal, Ruiz et al, , and Ruiz and Prats 23 proposed graphical methods to interpolate equilibrium data not determined experimentally. Nevertheless, the method proposed in this work allows the easy resolution of the problem of direct design for mixtures with four or more components (no other methods in this line have been found in the literature).…”

Section: Resultsmentioning

confidence: 99%

“…If a quaternary system is considered, the problem is much more complicated. In the bibliography some methods can be found, which use different projections of the solubility surfaces (Hunter, Smith, Powers, Cruickshank et al., Treybal, Ruiz et al, , and Ruiz and Prats). If the system contains more than four components, the graphical methods are not useful.…”

Section: Design Methods Proposedmentioning

confidence: 99%

See 1 more Smart Citation

New Method for Quaternary Systems Liquid−Liquid Extraction Tray to Tray Design

Marcilla

Gómez

Reyes

et al. 1999

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

A new numerical method for the liquid−liquid extraction design has been developed and applied to quaternary systems. The method directly calculates the optimum number of equilibrium stages for a specified composition of the solutes in the product stream as well as the solvent flow rate, which satisfies the overall balance and the stage to stage calculations. The method is based on the geometrical concepts of the Ponchon and Savarit method for binary systems. A correlation of the solubility surface and the tie-line data is required in order to implement the calculation procedure. Different proposed methods with this objective are described in detail and applied to type 1 quaternary systems. Both experimental data and UNIQUAC-generated data have been used to illustrate the application which has been compared with the commercial design program ChemCad III, using the same thermodynamic model and the same binary parameters. The method has the advantage that it allows the direct design (determination of the number of stages for a given desired separation) and avoids the iterative calculations to solve the material balances and equilibrium conditions.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Design Methods Proposedmentioning

confidence: 99%

New Method for Quaternary Systems Liquid−Liquid Extraction Tray to Tray Design

Marcilla

Gómez

Reyes

et al. 1999

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Thus, various graphical methods have been proposed, such as these described by Hunter (1942), Smith and Funk (1944), Cruickshank et al (1950), Chang and Moulton (1953), Powers (1954), Treybal (1963), and, more recently, Ruiz and Prats (1983a). It is necessary to represent grapically or analytically experimental liquid-liquid-phase equilibrium data so that the data can be interpolated.…”

Section: Departaf?78nto De Odrnica Tandnica Universklad De Alicante Amentioning

confidence: 99%

Correlation of quaternary liquid-liquid equilibrium data using UNIQUAC

Ruíz¹,

Gomis²

1986

Ind. Eng. Chem. Proc. Des. Dev.

View full text Add to dashboard Cite

A new mole fraction objective function has been used in development of a computer program for correlation liquid-liquid equilibrium data by the UNIQUAC equation. This program has been applied to the correlation of seven quaternary data sets and to study the possiblity of establishing Independently the parameters representing the binary and ternary systems contained in the quaternary system. Several advantages associated with using these parameters are discussed.Calculation in the design of liquid-liquid extraction equipment become complex when the feed is a mixture of three components or when a mixture of two solvents, (either miscible (mixed solvent) or immiscible (double solvent)) is used because the corresponding quaternary

show abstract

“…If the method were generally valid for quaternary data prediction, this geometric procedure might prove of great value, for many Type I ternary systems have been studied, and equilibria for a large number of quaternary systems could be generated analytically through the application of modern, high-speed computational techniques to Hunter's geometric method. Given sufficient equilibrium data, either predicted or experimentally measured, quaternary extraction calculations could then be made using the graphical methods of Hunter (1942) or Smith (1944), or computerized versions of these. Francis' discussion (1963) of quaternary systems provides interesting background material.…”

Section: Literature Citedmentioning

confidence: 99%