12 research outputs found
Some Solid Phase Syntheses of the Sex Attractants of the Spruce Budworm Trans-11-tetradecenal
Chemical and Field Studies on the Sex Pheromones of the Cone and Seed Moths Barbara colfaxiana and Lasperyresia younga
"Self-assembled ureidocrown-ethers - an example of ion-channel organization in lipid bilayers"
International audienc
Electrogenic transport by lipophilic guanidinium salts as anion carriers in bilayer membranes
Syntheses of unconjugated (Z,Z)-diolefinic insect pheromones on insoluble polymer supports
Recent achievements in facilitated transport membranes for separation processes
Membrane separation processes have been extensively used for some important industrial separations, substituting traditional methods. However, some applications require the development of new membranes. In this work, we discuss recent progress achieved in this field, focusing on gas and liquid separation using facilitated transport membranes. The advantages of using a carrier species either in a liquid membrane or fixed in a polymer matrix to enhance both the flux and the selectivity of the transport are summarized. The most probable transport mechanisms in these membranes are presented and the improvements needed to spread this technology are also discussed. As examples, we discuss our very successful experiences in air fractioning, olefin/paraffin separation and sugar recovery using liquid and fixed carrier membranes