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US 12,741,267 B2Granted
Catalyst medium comprising hollow microspheres
AssigneeAxens
InventorRobin Chal
Life of this patent
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Abstract
The present invention relates to a calcined medium, in particular a catalyst or a catalyst medium or an adsorbent/absorbent mass, in particular in the form of extrudates, pellets, granules or beads, the medium comprising a porous matrix comprising carbonates, clays, zeolites, oxides, or metal and/or silicon hydroxides, and the matrix incorporating hollow mineral microspheres having a different composition in a content of between 0.3 and 50% by weight, in particular between 0.5 and 15% by weight, of the matrix.
Claims21
A calcined support in the form of extrudates, pellets, granules or beads, said calcined support comprising:
- a porous matrix based on clays, zeolites, or carbonates, oxides, or hydroxides of metals and/or silicon, wherein said matrix incorporates hollow inorganic microspheres of a different composition and in a content of between 1.5% and 4% by weight of the matrix, and
- the ratio of the smallest dimension of the support of the pellet or granule or extrudate or bead with respect to the diameter of the hollow microspheres is at least 5/1, and said hollow inorganic microspheres exhibits a closed cavity,
- wherein the support is calcined.
Dependencies are inferred from the claim text.