Porous inorganic membranes
AssigneeCeramesh Limited
InventorsMichael P. Thomas, Andrew J. Sturgeon, Nigel I. Steward
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Abstract
A composite membrane for microfiltration comprises a woven metal mesh support and films bridging the interstices comprising inorganic particles, e.g. zirconia, bonded together by 1-25% of an inorganic adhesive. Group IV metal e.g. Si or Zr phosphate adhesives are preferred. Low temperature film formation without sintering permits the use of non-refractory metal supports.
Claims20
A composite membrane comprising a support having interstices of diameter greater than 5 .mu.m and length less than ten times their diameters, and porous inorganic films carried by the support and bridging the interstices thereof, wherein the films comprise more than 50% by weight of particles of an inorganic material bonded together by means alternative to sintering, comprising less than 50% by weight of an inorganic adhesive.
Dependencies are inferred from the claim text.