Membrane extraction

This study involves the preparation of a number of polymer inclusion membranes (PIMs) using a variety of commercial solvent extraction reagents immobilized in cellulose triacetate (CTA), cellulose acetate, poly(vinyl chloride) (PVC), PVC co-polymerized with vinyl alcohol and vinyl acetate, and carbo

The predicting equations for the mass-transfer rate and mass-transfer efficiency in a concentric circular membrane extractor module under concurrent- and countercurrent-flow with various barrier locations were derived theoretically by calculating the mass balance on each subchannel. The analytical s

Membrane-supported liquid–liquid extraction is known as an interesting alternative to conventional extraction. With this technology, both liquid phases do not have to be dispersed, formation of emulsions hardly takes place and phase separation is not necessary. In biotechnology, extraction by means

Application of membrane extraction process to the removal of phenol from its aqueous solution was investigated. The ability of poly (dimethylsiloxane), i.e. PDMS and poly (methyl vinyl) siloxane (PVMS) in the membrane extraction of water–phenol mixtures was compared. It was found that PDMS was more

In this study, the membrane extraction of phenol-4-aminoantipyrine complex with the series of aliphatic alcohols was investigated by monitoring the efficiency of the process. A commercial polysulphone hollow-fiber membrane module was used in all experiments. The effects of feed and extragent stream

The paper presents a model of the synthesis process of taste dipeptides carried out in a biphase water–organic phase system. An enzymatic conversion takes place within the aqueous phase where the enzyme is dissolved. The catalysis process is accompanied by the transport of reagents from/to the organ