Solvent extraction of Au(CN)2− and application to facilitated supported liquid membrane transport

Sastre, Ana Marı́a; Madi, Abdelhay; Alguacil, Francisco José

doi:10.1016/s0304-386x(99)00066-3

Cited by 22 publications

(6 citation statements)

References 18 publications

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“…is thin layer of organic phase can be immobilized onto a suitable inert microporous support, which when interposed in between two aqueous solutions is termed supported liquid membrane (SLM). In this three-phase extraction technique and analytes are extracted from a continuously �owing aqueous sample through an organic liquid phase into another usually temporally stagnant, aqueous phase [12][13][14][15][16][19][20][21][22][23][24][25][26].…”

Section: Supported Liquid Membrane: In Generalmentioning

confidence: 99%

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Supported Liquid Membrane Principle and Its Practices: A Short Review

Parhi

2012

Journal of Chemistry

183

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The present paper on the supported liquid membrane (SLM) deals with the general principles and applications, followed by the uphill transportation characteristic of SLM. The liquid-liquid extraction with supported liquid membrane is one of the best alternate and promising technologies for the extraction of metal ions from solutions over other hydrometallurgical separation processes. The salient features of the supported liquid membrane (SLM) technique such as simultaneous extraction and stripping, low solvent inventory, process economy, high efficiency, less extractant consumption, and operating costs are discussed in detail. The supported liquid membrane of hollow fiber type provides high interfacial surface area for achieving maximum metal flux. Also the use of different organic extractants for SLM has been discussed.

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Section: Supported Liquid Membrane: In Generalmentioning

confidence: 99%

“…But the other extractants like TOPO, TBP, MIBK, and so forth, are being used most oen for the extraction of valuable precious metal ions like Au by SLM technique [24,25,36].…”

Section: 2mentioning

confidence: 99%

Supported Liquid Membrane Principle and Its Practices: A Short Review

Parhi

2012

Journal of Chemistry

183

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“…Separation and recovery of copper [14][15][16][17][18], zinc [19][20][21], nickel [22][23][24], alkali metals [25], precious metals [26][27][28][29], rare earth metals [30][31][32][33][34], etc., from aqueous technological solutions and wastewater purification based on supported liquid membranes has intensively been studied. One of the problems is that when H + concentration difference is used as a driving factor to transfer metal ions, with time this difference decreases and the process stops.…”

Section: Mechanism and Kinetic Studies Of Slm Based Separationsmentioning

confidence: 99%

Recent advances in supported liquid membrane technology

Kocherginsky

Yang

Seelam

2007

Separation and Purification Technology

408

186

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“…The recovery and reuse of Au(III) in waste aqueous solutions not only save natural resources but also reduce environmental pollution; thus, considerable benefits could be obtained . The methods for recovering gold from waste are often complex and costly, such as the electrochemical method, ion exchange, , membrane filtration, and solvent extraction . By comparison, adsorption is simple in technology without consuming resources such as thermal and electrical energy and considered to be the most effective and environmentally friendly method for recovering gold. − …”

Section: Introductionmentioning

confidence: 99%

Au Nanoparticles in Silsesquioxane-Based Hybrid Networks by Simultaneous Recovery and Reduction of Au(III) in Wastewater

Liu

2022

ACS Appl. Nano Mater.

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The recovery of gold from wastewater or electronic waste is significant due to its enormous value in a variety of fields. An aminefunctionalized silsesquioxane (SQ)-based hybrid network (PCS-PAA) was successfully synthesized through the cost-effective, mild amine−ene reaction of acrylate-functionalized SQ with triaminoethylamine (TAA). Hydrophilic PCS-PAA helps to adsorb Au(III) via the coordination with abundant heteroatoms (N and O). The adsorption capacity of PCS-PAA for Au(III) reaches 647 mg/g within 30 min at room temperature and 1235 mg/g at 323 K, respectively. The Langmuir model is more suitable to describe the adsorption process, and the pseudo-second-order model well fits the adsorption kinetic. Surprisingly, most Au(III) ions are in situ reduced to Au(0) particles, which are uniformly distributed on the surface of PCS-PAA. PCS-PAA-Au (PCS-PAA loaded with Au) can reduce 4nitrophenol to 4-aminophenol with high catalytic activity. More interestingly, PCS-PAA can selectively adsorb Au(III) from e-waste. This work provides a convenient and mild method to recover Au(III) from wastewater or e-waste for multiple purposes.

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Solvent extraction of Au(CN)2− and application to facilitated supported liquid membrane transport

Cited by 22 publications

References 18 publications

Supported Liquid Membrane Principle and Its Practices: A Short Review

Supported Liquid Membrane Principle and Its Practices: A Short Review

Recent advances in supported liquid membrane technology

Au Nanoparticles in Silsesquioxane-Based Hybrid Networks by Simultaneous Recovery and Reduction of Au(III) in Wastewater

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