Star shaped alumina extrudates and catalyst based thereon
AssigneeEngelhard Corporation
InventorsCornelis Roeland Bayense, Durk Ykema
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Abstract
This invention is directed to star shaped alumina extrudates with a pore volume in the pores of a diameter over 1000 nm, as determined by mercury porosity, of at least 0.05 ml/g and a total pore volume between 0.5-0.75 ml/g. The extrudates have a length of between 2-8 mm, a length to diameter ratio of between 1-3, a side crushing strength of at least 50 N and a bulk crushing strength of at least 1 MPa.
Claims20
A star shaped alumina extrudate comprising pores, wherein the pore volume in pores of diameter over 1000 nm as determined by mercury porosimetry is at least 0.05 ml per gram of unit mass of said extrudate, the extrudate having a side crushing strength of at least 50 N and a bulk crushing strength of at least 1 Mpa.
Dependencies are inferred from the claim text.