B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/38
B01J 35/00 (2006.01) B01J 8/06 (2006.01) B01J 35/04 (2006.01)
Patent
CA 1093051
ABSTRACT OF THE DISCLOSURE Sintered ceramic articles having a high surface area-to-weight ratio and containing a plurality of ducts that extend through the article to permit fluid flow therethrough are prepared by forming an extrudable ad- mixture of pulverized ceramic material. The admixture is forced through a forming zone in which initial shearing forces form the admixture into a plurality of discrete ribbons, and the discrete ribbons are flowed into the upstream ends of a plurality of spaced, longitudinally-extending members to form a web member containing a plurality of longitudinally-extending ducts as the ribbons flow together about the members. Monolithic ceramic structures formed by the above-described process and including, hexagonally-packed circular ducts, that is, circular ducts surrounded by six other circular ducts with each surrounding duct spaced an approximately equal distance from the axis of the circular duct it surrounds, exhibit a desirably high ratio of transverse compressive strength to longitudinal compressive strength. 1.
198999
General Refractories Company
Gowling Lafleur Henderson Llp
LandOfFree
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