Pervaporation selectivity as a function of pressure and sorption properties of a polymeric film membrane

Technologies for the removal of phenol from fluid streams: A short review of recent developments

“…The PEBA membrane showed the best selectivity. The use of cellulose acetate for separation of phenol from water through membrane pervaporation has also bee reported recently [50]. As reported by Field and Lobo [51], to achieve pollution control and waste minimization, pervaporation (when applied to sparingly soluble organics such as phenol) is more viable when operated as a pervaporation-decanter hybrid process than in a stand-alone mode.…”

Synthesis of Refractory Metal Carbide Nanocoatings on Carbon Fibers and Nanoneedles of Silicon in Molten Salts

“…Upon contact of the refractory metal with its compounds in molten salts, a spontaneous metal-salt reaction with the formation of the reduced form of the refractory metal complexes takes place (5-n)Me + nMe 5+ → 5Me n+ [1] where n < 5 (4)(5). Complexes with intermediate oxidation states diffuse through the melt and disproportionate on the surface of a carbon fiber: 5Me n+ + (5-n)C → (5-n)MeC + nMe 5+ [2] The driving force of reaction [2] is the energy of carbide formation ∆G MeC .…”

Electrochemical Behavior and Electrorefining of Vanadium in Melts Containing Titanium Salts

“…As is shown in study (8), the formal standard potential for a reversible process with the formation of a soluble form in the melt can be calculated from equation: [3] where D Ti(IV ) and D Ti(III) are diffusion coefficients of the oxidized and reduced forms. [4] In the case when the process is reversible with an insoluble product, for instance, formation of metal, the formal standard potential can be calculated from the linear voltammetry data with utilization of the next equation (10):…”