Technion Research & Development Foundation Ltd

Ultrasonic Dryer Ltd.

Raphael Semiat

Moris S Eisen

Akper Sadykhov

Natalia Vainrot

The invention provides modified polysulfones substituted in one or more of the phenyl rings by functional groups and membranes composed of the modified polysulfones. Also provided are methods for the preparation of monodispersed nanoporous polymeric membranes. The membranes are useful for reverse osmosis, nanofiltration, and ultrafiltration, particularly for purification of water.

Polysulfone polymers and membranes for reverse osmosis, nanofiltration and ultrafiltration

Spray drying system for drying a liquid feed which is made up of a solution or suspension of particles in a fluid medium. The system enables the spray drying of wet material and converting the material into powder by evaporation of a liquid medium at reduced pressure or at a vacuum. The system includes a heating chamber and an evacuation device, communicating with the interior of the heating chamber. This provision enables creation of reduced pressure within the chamber, accompanied by evaporation of the fluid medium at temperatures lower than needed for evaporation at normal pressure, and evacuation of the moisture vapor generated during evaporation.

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Haifa, Israel

Raphael Semiat