Extraction

Carrier-assisted transport through liquid membranes is one of the important applications of supramolecular chemistry. This work investigates the use of synthetic carrier (ionophore) for the separation of metal ions. We have tested the effect of structure of ionophore on the separation of metal ions.

The present study deals with the characterization and treatment of bleach plant effluents generated from Indian varieties of wheat straw or bagasse or hardwood/non wood materials. Spent bleach liquor (SBL) was generated by the chlorination and extraction of unbleached pulp under controlled condition

In the frame of a global process of marginal ores treatment and of the treatment of solid residues containing heavy metals, we can associate the techniques of static solid–liquid extraction to the techniques of static liquid– liquid extraction. The static solid–liquid extraction or leaching is now w

Demand for lactic acid is growing, especially, for its use in the production of biodegradable polymer (polylactate). The current method of production and separation of lactic acid is both expensive and unsustainable. This is partly due to the cost and lower efficiency of the current method for separ

Microwave and conventional methods have been used to extract pectin from orange peels, with different extraction periods, different solvent pHs and different types of solvent systems. For microwave extraction, the greatest total amount of pectin yield was found to be 5.27% on a dry basis for 15 min

The transport of iodine through a bulk liquid membrane containing kerosene as solvent and alkaline sodium sulfite solution as receiving phase in a bench scale system was studied. It was found that the pH of feed solution has a major effect on the extraction rate. On the other hand, the concentration

The extraction of short peptides through a supported liquid membrane containing di-2-(ethylhexyl)phosphoric acid (D2EHPA) as a carrier was investigated. The extraction was carried out from the aqueous donor phase with pH 3 to a more acidic acceptor phase. The proton gradient between the donor and th

A mathematical model has been developed to simulate the performance of an integrated extraction-stripping process based on the use of hollow fiber contactors. The model allows one to predict the time-dependent concentration profiles of the two phases involved in an individual extraction or stripping

Extraction of gold (III) ions from aqueous solutions by two types of emulsifier using the emulsion liquid membrane technique was investigated. Experimental results for the batch extraction of gold (III) ions using a surfactant liquid membrane technique are presented. A comparison was made between a

Extraction of zinc(II) from model hydrochloric acid solutions was studied by Lewis cell mixing the bulks of both phases and keeping a stable interfacial surface. It was found that Lewis cell experiments, although dynamic in nature, support the extracting of ZnCl2*2 TBP and H2ZnCl4*2TBP chlorocomplex