[PDF] Top 20 Copper recovery from ore by liquid–liquid extraction using aqueous two-phase system

... the extraction and separation of copper, and SE can be efficiently applied for the recovery of copper from leach liquors and waste solutions using a variety of reagents ...and ... See full document

... solvent extraction (SE), involving leaching with an acid solution, followed by the extraction and recovery of target metal ions from the ...on extraction efficiency and ... See full document

... for extraction of the textile dyes Malachite Green, Methylene Blue, and Reactive Red 195 using aqueous two-phase ...top phase of the systems was spontaneous and optimization was ... See full document

... uses aqueous two-phase system, a safe alternative to liquid–liquid extraction, to perform the chemical speciation of ...top phase of the ...bottom phase of ... See full document

... LLE system that do not use toxic or volatile organic ...on two water-rich phases, which form by mixing two incompatible water-soluble solutes above certain ...the aqueous phases is ... See full document

... produced by the milk yeast microbiota ...accompanied by the necessity of alternative ways for enzyme extraction, which can be related to a simple culture-medium design (3) or to the application of ... See full document

... BPA aqueous solution with a concentration of ...the aqueous solution of BPA) was used due to the smaller biphasic region obtained with this ...IL-rich aqueous phase is the top layer while the ... See full document

... Pd(II) extraction was con firmed, the present study started by the evaluation of the effect of contact time on Pd(II) ...performed using 6 M HCl solutions, maintaining the Pd(II) concentration at 5 × ... See full document

... Supported liquid membrane (SLM) extraction appears to show potential for the extraction of metal ions from wastewater process ...organic liquid, known as extractant absorbed in the ... See full document

... attention from pharmaceutical industries leading to a drastic research increment in this ...approved by Food and Drug Administration (FDA), is the most abundant mammalian immunoglobulin, whose acquisition ... See full document

... orthogonal phase diagram (Figure ...designated by binodal curve, that separates the monophasic from the biphasic region, and which depends on certain conditions, namely on the pH, temperature and ... See full document

... 1991) using ATPS of PEG 4000 and potassium phosphate salts and sodium sulfate salts showed mass transfer coefficients three times higher than the ones obtained with spray columns (Jafarabad et ...PRDC using ... See full document

... their extraction both from natural sources and industrial or agricultural ...the extraction of phenolic ...a two-phase mixture of water and carbon ...determined by the ratio ... See full document

... solid-phase extraction (SPE) method based on conductive polypyrrole (PPy) nanofibers which were fabricated by electrospinning and in situ polymerization was ...followed by high performance ... See full document

... to liquid-liquid extraction is highly advantageous, allowing the extractant to accumulate significantly more ...of aqueous and organic phases rises, the extraction efficiency of the ... See full document

... technology, two-phase aqueous system (ATPS) prossesses attractive properties such as time saving, simplicity and easy scale-up that make its application economically feasible [3], technique ... See full document

... whose recovery and purifi- cation by cost-effective and environmentally safe processes is still a major ...industry, liquid–liquid extraction processes are often impor- tant techniques ... See full document

... Aqueous two-phase systems (ATPS) are formed by mixtures of chemical species that, under certain conditions, separate into two immiscible phases, with water as the major component in ... See full document

... intermediate phase (lower amounts of denaturated ...case. By now, the only explanation can be associated to the IL that does not allow, or interferes with the use of the ...the two other ATPS, in ... See full document

... epicatechin gallate (ECG), and epicatechin (EC) (Figure 1-B)] are flavonoids that belong to the group of the flavan-3-ols or flavanols. During the manufacturing and brewing processes the catechins undergo many chemical ... See full document