High surface area permeable material

Details High surface area permeable material High surface area permeable material

1977-12-09

1980-02-26

Cohan, Alan

Fluid handling

Systems

210 22R, 210321B, 55158, B01D 300

Patent

active

041900790

ABSTRACT:
Three-dimensional structures providing a plurality of separate interpenetrating, three-dimensional domains or channels or flowpaths, each of said domains or channels or flowpaths being a closed system of connected porosity or permeability and each of said domains or channels or flowpaths being interpenetrating within said structure, have been prepared. These structures are prepared from porous permeable precursor materials having a single three-dimensional domain or channel or flowpath as described above. Suitable precursor materials are provided by the abundant porous carbonate skeletal material of marine life, e.g. the coral Porites skeletal aragonite. For example, by coating the surfaces of such materials with a liquid material capable of being cured or set to a solid, followed by curing or setting and dissolution, e.g. chemical etching, of the coated skeletal material, there is produced a three-dimensional structure in accordance with this invention possessing two separate interpenetrating, three-dimensional domains or channels or flowpaths defined by the residual cured or set coating material. The resulting structure of this invention can be adapted such that a fluid can be applied to one side or face of the structure to flow into and out of such structure via only one of said channels or flowpaths and when so adapted can be employed in apparatus for the treatment or handling of one or more of the fluid streams flowing therethrough.

REFERENCES:
patent: 3794468 (1974-02-01), Leonard
patent: 3957504 (1976-05-01), Ho

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