The hybrid molten/solid In2O3 - 30-48 wt.% Bi2O3 oxide materials were studied with respect to their transport properties. The conductivities, oxygen ion transport numbers and oxygen permeation fluxes have been measured by using the four-probe DC, volumetric measurements of the faradaic efficiency and gas flow techniques, respectively. We show that the...

In this study, the blast furnace slag was used as absorbing bed and then, its ionic adsorption was studied. For this reason, various experimental parameters such as pH, contact time and the primary ion concentration were investigated. The remaining concentrations of ions such as; Mn2+ and Fe2+ in water were measured by atomic adsorption spectroscopy. The chemical and p...

The mechanisms behind protein PEGylation are complex and dictated by the structure of the protein reactant. Hence, it is difficult to design a reaction process which can produce the desired PEGylated form at high yield. Likewise, efficient purification processes following protein PEGylation must be constructed on an ad hoc basis for each product. The retention and binding mechanisms driving ele...

in this study, polystyrene ethylene butylene polystyrene (psebs) was functionalized to prepare mono and bipolar ion exchange membranes. in the case of the bipolar membrane, platinum was used as the intermediate layer. nacl solution of concentration ranging from 5 g/l to 25 g/l was used as the feed solution. a commercially procured ion exchange membrane made of polystyrene divinyl benzene was al...

Five novel disiloxane compounds comprising guanidinium and pyridinium moieties were obtained with high yields and purity. The verified synthetic pathways were then applied for modification of pre-functionalized silica gel, producing materials with the analogous organic side-chains. These halide-containing compounds and materials were then compared as to their ion-exchange properties: two disilo...

This paper describes the equilibrium behaviour of a wastewater resembling that produced during semiconductor and printed circuit board manufacture when contacted with a chelating ion exchange resin (Chelex-100; Bio-Rad Laboratories). Distribution coefficients (solid phase metal concentrations/soluble metal concentration) were calculated, and it was determined that the order of affinity was Cu >...

Three ion exchange equilibrium isotherms between muscovite-paragonite solid solution and 2molal KCI-NaC1 aqueous solutions have been studied at (1) 420 ~ 1 kbar, (2) 420 ~ 2 kbar, and (3) 550 ~ 2 kbar. The AG ~ (Joules) + 2a of the ion exchange reaction are: AG ~ (1) = 17 259_+ 686, AG ~ (2) = 18 268 _ 560, AG ~ (3) = 16 018 _ 336. The excess mixing parameters ('subregular solution') of the sol...