Patents Assigned to CeraMem Separations Limited Partnership
  • Patent number: 5221484
    Abstract: A catalytic filtration device for separating a particulate-containing feed stock into a filtrate and a particulate-containing filter cake, having a monolith of porous material containing a plurality of passageways extending longitudinally from an inlet end face to an outlet end face, having a plurality of plugs in the ends of the passageways at the inlet end face and at the outlet end face to prevent direct passage of the feed stock through the passageways from the inlet end face to the outlet end face; a microporous membrane selected to separate the feed stock into a filtrate and particulate-containing filter cake, the membrane applied to at least the wall surfaces of the passageways open at the inlet end face and of mean pore size smaller than the mean pore size of the porous material; the device regenerable by withdrawal of the filter cake from the inlet end face of the device; and a catalyst applied to the device for catalyzing a reaction in the filtrate as it passes through the device.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: June 22, 1993
    Assignee: CeraMem Separations Limited Partnership
    Inventors: Robert L. Goldsmith, Bruce A. Bishop
  • Patent number: 5120576
    Abstract: A process for forming a porous inorganic membrane on a porous support is provided. The support is coated with refractory particles which sinter at a first temperature. The coating then is impregnated with an inorganic binder which reacts at a second temperature, lower than the first temperature. The impregnated, coated support then is processed at a temperature at least as high as the second temperature, but less than the first temperature.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: June 9, 1992
    Assignee: CeraMem Separations Limited Partnership
    Inventors: Robert R. Goldsmith, Bruce A. Bishop