초록 ▼

An integral, monolithic frame-membrane is disclosed, such frame-membrane having a semi-permeable membrane portion and integral therewith a frame portion, the frame portion having one or more cavities, each cavity juxtaposed to the membrane portion, each cavity having at least one fluid entrance cond

An integral, monolithic frame-membrane is disclosed, such frame-membrane having a semi-permeable membrane portion and integral therewith a frame portion, the frame portion having one or more cavities, each cavity juxtaposed to the membrane portion, each cavity having at least one fluid entrance conduit communicating with an entrance manifold aperture and at least one fluid exit conduit communicating with an exit manifold aperture. The integral, monolithic frame-membrane may be used in apparatus for carrying out gas-separation; microfiltration; ultrafiltration; nanofiltration; reverse osmosis (i.e. hyperfiltration); diffusion dialysis; Donnan dialysis; electrodialysis (including filled-cell electrodialysis; i.e. electrodeionization); pervaporation; piezodialysis; membrane distillation; osmosis; thermo osmosis; and electrolysis with membranes. Also disclosed are pillows prepared from ion exchanging films or fabrics (which may be porous or non-porous), the pillows filled with ion exchange structures such as beads, fibers, fabrics or rods. The pillows may be used with the integral, monolithic frame-membranes, with separate frames and membranes or with frames only.

대표청구항 ▼

[ I claim:] [1.] A membrane-frame comprising a semi-permeable membrane portion having two sides and at least one frame portion, said frame portion comprising a first cavity therein, said first cavity being juxtaposed to one side of said membrane portion and adapted for fluid flow therein, said frame

[ I claim:] [1.] A membrane-frame comprising a semi-permeable membrane portion having two sides and at least one frame portion, said frame portion comprising a first cavity therein, said first cavity being juxtaposed to one side of said membrane portion and adapted for fluid flow therein, said frame portion also comprising at least one first fluid entrance manifold aperture and at least one first fluid exit manifold aperture wherein said first cavity is in fluid communication with each said first fluid entrance manifold aperture and with each said first fluid exit manifold aperture, wherein said membrane portion comprises ion exchange resin having fixed charges predominantly of one sign and wherein said frame portion comprises at least in part ion exchange resin having fixed charge predominantly of the opposite sign to said on sign.