Semi-permeable membranes for separation processes or apparatus characterised by the material Manufacturing processes specially adapted therefor

BPERFORMING OPERATIONS TRANSPORTING B01Physical, chemical processing B01DSEPARATION

B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material Manufacturing processes specially adapted therefor

B01D71/02Inorganic material B01D71/021Carbon B01D71/022Metals B01D71/024Oxides B01D71/025Aluminium oxide B01D71/027Silicium oxide B01D71/028Molecular sieves B01D71/04Glass B01D71/06Organic material B01D71/08Polysaccharides B01D71/10Cellulose Modified cellulose B01D71/12Cellulose derivatives B01D71/14Esters of organic acids B01D71/16Cellulose acetate B01D71/18Mixed esters B01D71/20Esters of inorganic acids B01D71/22Cellulose ethers B01D71/24Rubbers B01D71/26Polyalkenes B01D71/28Polymers of vinyl aromatic compounds B01D71/30Polyalkenyl halides B01D71/32containing fluorine atoms B01D71/34Polyvinylidene fluoride B01D71/36Polytetrafluoroethene B01D71/38Polyalkenylalcohols Polyalkenylesters Polyalkenylethers Polyalkenylaldehydes Polyalkenylketones Polyalkenylacetals Polyalkenylketals B01D71/40Polymers of unsaturated acids or derivatives thereof B01D71/42Polymers of nitriles B01D71/44Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26 - B01D71/42 B01D71/46Epoxy resins B01D71/48Polyesters B01D71/50Polycarbonates B01D71/52Polyethers B01D71/54Polyureas Polyurethanes B01D71/56Polyamides B01D71/58Other polymers having nitrogen in the main chain, with or without oxygen or carbon only B01D71/60Polyamines B01D71/62Polycondensates having nitrogen-containing heterocyclic rings in the main chain B01D71/64Polyimides Polyamide-imides Polyester-imides Polyamide acids or similar polyimide precursors B01D71/66Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only B01D71/68Polysulfones Polyethersulfones B01D71/70Polymers having silicon in the main chain, with or without sulfur, nitrogen, oxygen or carbon only B01D71/72Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 B01D71/74Natural macromolecular material or derivatives thereof B01D71/76Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 B01D71/78Graft polymers B01D71/80Block polymers B01D71/82characterised by the presence of specified groups