Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Reexamination Certificate
2005-11-22
2005-11-22
Johnson, Christina (Department: 1725)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
C502S060000
Reexamination Certificate
active
06967181
ABSTRACT:
In a process for concentrating an at least partially crystalline solid containing at least one zeolite in a mixture comprising at least one auxiliary, for example a template compound, and said solid, the mixture is ultrafiltrated in a step (II) to divide the mixture into a retentate and a permeate, the solids content in the retentate being higher than that in the mixture and the solids content in the permeate being lower than that in the mixture. This procedure allows auxiliaries, in particular template compounds, present in the permeate to be recycled into a crystallizing step (I) upstream of step (II).
REFERENCES:
patent: 4648960 (1987-03-01), Poeppelmeier et al.
patent: 4701428 (1987-10-01), Bellussi et al.
patent: 5863516 (1999-01-01), Otterstedt et al.
patent: 5919721 (1999-07-01), Potter
patent: 6106803 (2000-08-01), Hasenzahl et al.
patent: 6491861 (2002-12-01), Grosch et al.
patent: 6521562 (2003-02-01), Clem et al.
patent: 2004/0053772 (2004-03-01), Muller et al.
patent: 2004/0054199 (2004-03-01), Muller et al.
patent: 10232406 (2004-01-01), None
patent: 0 638 362 (2001-03-01), None
patent: WO 98/55229 (1998-12-01), None
Hill Friedrich
Möller Ulrich
Petersen Hermann
Schubert Erich
Voss Hartwig
BASF - Aktiengesellschaft
Johnson Christina
LandOfFree
Production of a zeolite-containing solid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Production of a zeolite-containing solid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of a zeolite-containing solid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3497413