Journal ArticleDOI
Separation of copper by liquid surfactant membranes
J. Strzelbicki,W. Charewicz +1 more
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In this paper, a model for copper separation by liquid surfactant membrane is presented based on the multiple diffusion of ion-exchanger molecule between membrane interfaces, which is demonstrated with better utilization of D2EHPA over a corresponding liquid extraction process.About:
This article is published in Journal of Inorganic and Nuclear Chemistry.The article was published on 1978-01-01. It has received 23 citations till now. The article focuses on the topics: Membrane & Aqueous solution.read more
Citations
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Journal ArticleDOI
Extraction of Copper by Liquid Membranes
TL;DR: In this paper, important variables governing the permeation of copper ion through liquid membranes and their effects on the separation process are described, including membrane viscosity, treatment ratio, complexing agent concentration, internal droplet size, internal phase leakage, and copper concentration in the internal phase.
Journal ArticleDOI
Liquid Emulsion Membranes and Their Applications in Biochemical Processing
M. P. Thien,T. A. Hatton +1 more
TL;DR: The potential for liquid emulsion membrane (LEM) systems in biochemical applications and their advantages over conventional systems are discussed in this article, where examples where LEMs have been used to successfully separate organic acids, amino acids, and antibiotics.
Book ChapterDOI
Chapter 7 Liquid membranes (liquid pertraction)
L. Boyadzhiev,Z. Lazarova +1 more
TL;DR: In this article, a simple idea was proposed: two homogeneous, completely miscible liquids, which may be referred to as donor solution (F), and an acceptor solution (R), are spatially separated by a third liquid, immiscible and practically insoluble in the former two liquids, the membrane phase (S).
Journal ArticleDOI
Transport of alkali metal cations across liquid membranes by crown ether carboxylic acids
TL;DR: In this paper, a competitive transport from an alkaline aqueous source phase through a chloroform phase to an acidic aquous receiving phase facilitated by nine crown ethers with pendant carboxylic acid groups has been investigated.
Journal ArticleDOI
Transport of Uranium(VI) through a Supported Liquid Membrane Containing LIX 63
Kenichi Akiba,Takuji Kanno +1 more
TL;DR: In this article, the carrier transport of U(VI) has been studied by means of the liquid membrane of LIX 63 (HR) held on a porous support, and it was shown that 99% of U was recovered and the final concentration ratio in the product to the feed exceeded 103.
References
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Journal ArticleDOI
Permeation through liquid surfactant membranes
TL;DR: In this article, a novel separation technique based on the selectivity of a liquid membrane composed of surfactants and water is described, and the permeation mechanism is discussed in terms of the surfactant concentration, the structure and chain length, the nature of permeate and the solubility of the permeate in water.
Journal ArticleDOI
Separation of Phenol from Waste Water by the Liquid Membrane Technique
R. P. Cahn,N. N. Li +1 more
TL;DR: In this article, the removal of phenol and other weakly ionized acids and bases from waste water is described when using the liquid membrane emulsion technique, and mathematical relationships are derived for the theoretical distribution and for the rate of permeation of the phenol into the emulsion.
Journal ArticleDOI
Acidic organophosphorus extractants—XIX: Extraction of Cu(II), Ni(II), Zn(II) and Cd(II) by DI(2-ethylhexyl) phosphoric acid
R. Grimm,Z. Kolařík +1 more
TL;DR: In this article, the extractability of di(2-ethylhexyl) phosphoric acid in n-dodecane from 1 M (Na, H)NO3 and 1 M Na, HCl decreases in the orders Zn(II) > Cd(II), > Cu(II, > Co(II).
Journal ArticleDOI
Concentrating solutes with membranes containing carriers.
TL;DR: How specific results provide a blueprint for designing additional membrane systems is shown, which offers a method for wide classes of large scale separations.
Journal ArticleDOI
Liquid extraction of metals from sulphate solutions by alkylphosphoric acids. I. Equilibrium distributions of copper, cobalt and nickel with di‐(2‐ethyl hexyl) phosphoric acid
M. L. Brisk,W. J. McManamey +1 more
TL;DR: In this article, liquid-liquid equilibrium data were obtained at 25° for the distribution of copper, cobalt and nickel between aqueous sulphate solutions and kerosene solutions of di-(2-ethyl hexyl) phosphoric acid (EHPA).
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