Abstract: Disclosed is a process which comprises providing an alloy of selenium, preparing powdered particles of the alloy with an average particle diameter of less than 300 microns, placing the powdered particles into a container and tumbling the container, and subsequently removing the powdered particles from the container and compressing the powdered particles into pellets.
Type:
Grant
Filed:
May 21, 1992
Date of Patent:
June 8, 1993
Assignee:
Xerox Corporation
Inventors:
Lawrence E. Kowalczyk, Barry A. Lees, Monroe J. Hordon, Paul F. Zukoski, Alan B. Mistrater
Abstract: A carbonaceous adsorbent to be used for the removal of a pyrogen dissolved in water is disclosed. The adsorbent is obtained by carbonizing porous beads of a cross-linked polymer. This adsorbent is favorably used for the removal of endotoxin in the production of pure water from deionized water resulting from the treatment with ion-exchange resins.
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