Solvents purification mainly used in pharmaceutical field such as acetone and\nmethyl ethyl ketone (MEK) were performed through hybrid silica membranes and from\nbinary and multi-components mixtures. Two hybrid silica membranes-zirconia doped\nbis(triethoxysilyl)methane and bis(triethoxysilyl)ethane (BTESE)-were studied. Flux, permeance,\nand separation factor were evaluated depending on temperature, composition, and number of organic\ncompounds in the feed. Dehydration tests of acetone were operated at 30 and 45 DegreeC following\nby acetone and MEK purification at 50 Degree C from multi-components hydro-organic mixtures where\nhydrophilic compounds (water, methanol) but also hydrophobic (dichloromethane (DCM) and/or\ntoluene) were present. Results showed that the presence of Zr nanoparticles affected flux and\nimproved selectivity in the case of dehydration. Experiments related to acetone and MEK purification,\nrevealed a mass transfer alteration and a decrease of performance, from 99 to 97 wt% and from 98 to\n95 wt% respectively, when the number of compounds in the initial feed grown up and more precisely,\nin the presence of DCM and toluene thus highlighting a possible coupling effect.
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