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US 7,811,360 B2Granted
Contact and adsorbent granules
AssigneeLANXESS Deutschland GmbH
InventorsAndreas Schlegel, Jürgen Kischkewitz
Life of this patent
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Abstract
The present invention relates to a unit suitable for the through-flow of a fluid medium at least partially filled with an adsorbent/catalyst in pellet form consisting essentially of iron oxide and/or iron oxyhydroxides, solidified with oxides and/or (oxy)hydroxides of the elements Al, Mg and Ti, the pellets or granules based on iron oxides and/or iron oxyhydroxides and iron(III) hydroxide for the absorbent/catalyst, and processes for their production and their use.
Claims13
An adsorption media/reaction media granule consisting essentially of:
- α-FeOOH solidified with oxides and/or (oxy)hydroxides of the elements Al, Mg and/or Ti,
- wherein said granule has a mechanical and hydraulic abrasion resistance of <12%, and
- further wherein said granule is formed via a precipitation of a metal hydroxide or a metal carbonate from its corresponding iron salt solution under alkaline conditions with the use of an alkaline precipitant.
Dependencies are inferred from the claim text.