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Filing date
Publication date
Application filedfiledCritical
Publication of BE711950ApublicationCriticalpatent/BE711950A/xx
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
B01D71/06—Organic material
B01D71/08—Polysaccharides
B01D71/12—Cellulose derivatives
B01D71/14—Esters of organic acids
B01D71/16—Cellulose acetate
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D67/0002—Organic membrane manufacture
B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching