Extraction of cadmium with trilaurylamine-kerosine through a fiat-sheet-supported liquid membrane

G. R.M. Breembroek; G. J. Witkamp; G. M. Van Rosmalen

doi:10.1016/S0376-7388(98)00100-8

Extraction of cadmium with trilaurylamine-kerosine through a fiat-sheet-supported liquid membrane

G. R.M. Breembroek, G. J. Witkamp^*, G. M. Van Rosmalen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

Cadmium has been extracted as a chloride complex through a flat-sheet-supported liquid membrane (SLM), using the tertiary amine Alamine 304-1 (mainly trilaurylamine or TLA) in kerosine. The typical permeability of the membrane was 1.1 x 10^-6 m s^-1. The rate limiting step is diffusion through the membrane. The cadmium loading of the extractant at the feed-membrane interface is high. Trilaurylammonium chloride crystallizes at the surface of the membrane above 0.2 M TLA. This salt blocks the pores and lowers the extraction rate up to a factor of 3. Apart from this blocking effect, the permeability through the membrane is described well with the presented model, using physically realistic parameter values. When the precipitation can be minimized, the system has good potentials for the extraction of cadmium chloride complexes.

Original language	English (US)
Pages (from-to)	195-206
Number of pages	12
Journal	Journal of Membrane Science
Volume	147
Issue number	2
DOIs	https://doi.org/10.1016/S0376-7388(98)00100-8
State	Published - Sep 2 1998
Externally published	Yes

Keywords

Cadmium
Extraction
Supported liquid membrane
Transport rates
Trilaurylamine

ASJC Scopus subject areas

Biochemistry
General Materials Science
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/S0376-7388(98)00100-8

Cite this

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title = "Extraction of cadmium with trilaurylamine-kerosine through a fiat-sheet-supported liquid membrane",

abstract = "Cadmium has been extracted as a chloride complex through a flat-sheet-supported liquid membrane (SLM), using the tertiary amine Alamine 304-1 (mainly trilaurylamine or TLA) in kerosine. The typical permeability of the membrane was 1.1 x 10-6 m s-1. The rate limiting step is diffusion through the membrane. The cadmium loading of the extractant at the feed-membrane interface is high. Trilaurylammonium chloride crystallizes at the surface of the membrane above 0.2 M TLA. This salt blocks the pores and lowers the extraction rate up to a factor of 3. Apart from this blocking effect, the permeability through the membrane is described well with the presented model, using physically realistic parameter values. When the precipitation can be minimized, the system has good potentials for the extraction of cadmium chloride complexes.",

keywords = "Cadmium, Extraction, Supported liquid membrane, Transport rates, Trilaurylamine",

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T1 - Extraction of cadmium with trilaurylamine-kerosine through a fiat-sheet-supported liquid membrane

AU - Breembroek, G. R.M.

AU - Witkamp, G. J.

AU - Van Rosmalen, G. M.

PY - 1998/9/2

Y1 - 1998/9/2

N2 - Cadmium has been extracted as a chloride complex through a flat-sheet-supported liquid membrane (SLM), using the tertiary amine Alamine 304-1 (mainly trilaurylamine or TLA) in kerosine. The typical permeability of the membrane was 1.1 x 10-6 m s-1. The rate limiting step is diffusion through the membrane. The cadmium loading of the extractant at the feed-membrane interface is high. Trilaurylammonium chloride crystallizes at the surface of the membrane above 0.2 M TLA. This salt blocks the pores and lowers the extraction rate up to a factor of 3. Apart from this blocking effect, the permeability through the membrane is described well with the presented model, using physically realistic parameter values. When the precipitation can be minimized, the system has good potentials for the extraction of cadmium chloride complexes.

AB - Cadmium has been extracted as a chloride complex through a flat-sheet-supported liquid membrane (SLM), using the tertiary amine Alamine 304-1 (mainly trilaurylamine or TLA) in kerosine. The typical permeability of the membrane was 1.1 x 10-6 m s-1. The rate limiting step is diffusion through the membrane. The cadmium loading of the extractant at the feed-membrane interface is high. Trilaurylammonium chloride crystallizes at the surface of the membrane above 0.2 M TLA. This salt blocks the pores and lowers the extraction rate up to a factor of 3. Apart from this blocking effect, the permeability through the membrane is described well with the presented model, using physically realistic parameter values. When the precipitation can be minimized, the system has good potentials for the extraction of cadmium chloride complexes.

KW - Cadmium

KW - Extraction

KW - Supported liquid membrane

KW - Transport rates

KW - Trilaurylamine

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ER -

Extraction of cadmium with trilaurylamine-kerosine through a fiat-sheet-supported liquid membrane

Abstract

Keywords

ASJC Scopus subject areas

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