Appeal No. 1997-1549
Application No. 08/208,143
effluents by use of a fixed bed containing a molded body
comprising a
dealuminated zeolite Y and at least one binder. Claim 1 is
illustrative and reads as follows:
1. A method for the removal of organic material from
exhaust air and/or effluents, said method comprising
contacting said air and/or said effluents in a fixed bed with
a moulded body as fixed bed adsorber, wherein said moulded
body has a breaking strength of 10 to 150 N; wherein said
moulded body comprises dealuminated zeolite Y and at least one
binder and having a hydrophobic factor of from 1.5 to 6.0,
wherein a slurry of said binder in water does not exceed a pH
of 10; and wherein said moulded body is produced by a process
comprising mixing pulverulent dealuminated zeolite Y with at
least one binder, optionally with the addition of a lubricant
and/or a pore former, and optionally with water or an organic
solvent, moulding by granulation or extrusion of the resulting
kneadable mass to form a moulded body, and drying and
calcining at 850° to 1100°C said moulded body.
THE REFERENCES
Plank et al. (Plank) 3,140,249 Jul. 7,
1964
Gloffre et al. (Gloffre) 0 297 543 Jan. 4,
1989
(European patent application)
Hakansson WO 90/09235 Aug. 23,
1990
(PCT application)
2
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