Semi permeable composite membrane from a poly-n-vinyl-n-methyl polymer.
NL8402648A
Semipermeable membranes, esp. for desalination of sea water - of microporous substrate with surface member layer of crosslinked polymer
NL8105621A
Fiber tube, method and apparatus for its manufacture.
NL8104496A
Microporous polymer membranes prodn. - by casting polymer soln. onto support and immersing on coagulation bath contg. solvent and non-solvent for polymer
NL8103253A
Tubular filter membrane in tube filter unit is held in tube end - via resilient sealing bush insert and outwardly sprung ring or sleeve
NL8003631A
Method for concentrating substances by membrane filtration.
Filtering process for concentrating macromolecular¹substances
NL7906015A
Cleaning fluid circuit for membrane filtration unit - has branch lines feeding through cleaning body trap and store
NL7905957A
Device for membrane filtration with outside drain.
NL7905958A
Method and apparatus for rinsing a membrane filtration installation.
NL7905921A
Purificn. of fat-contg. effluent water - by membrane filtration to give recovery of useful material
NL7905923A
Anaerobic treatment system for domestic sewage water - in two=stage plant acidifying and then fermenting producing methane
NL7905194A
Method and apparatus for flushing a number of serial filtration units for performing a membrane filtration under pressure.
FR2428455A1
Concn. of polymers in liq. medium - by membrane filtration in the presence of fluidised particle bed to maintain high permeation rate
NL7904302A
Membrane filtration unit with central permate drain.
NL7904301A
Permeate draining tube for membrane filtration unit - has axially running channels with inlets from porous supporting layer
NL7812663A
Polymeric filtration membranes - cast from solns. in water-immiscible solvents and immersed in alcohol bath, can be stored in the dry state
NL7812664A
Filtration membranes esp. of cellulose acetate - made by casting a polymer soln. contg. a water miscible solvent and successive coagulation in cold and warmer aq. baths
