Filter aid used in alluviation

Food or edible material: processes – compositions – and products – Processes – Treatment of liquid with nongaseous material other than...

Reexamination Certificate

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C426S423000

Reexamination Certificate

active

06986911

ABSTRACT:
A filter aid for use in connection with the filtration of liquids is provided. In particular, a filter useful in connection with the filtration of beer is provided. In addition, a method of filtering liquids is provided. According to the method, a filter aid comprising angular, isotropic particles is introduced to a liquid before the liquid is passed through a filter. In particular, a method for filtering beer comprising the introduction of angular, isotropic particles as a filter aid to a stream of unfiltered beer such that a filtration cake comprising filter aid and solids filtered from the beer is formed.

REFERENCES:
patent: 4326964 (1982-04-01), Hirs
patent: 5484620 (1996-01-01), Oeschle et al.
patent: PCT/EP95/04690 (1995-11-01), None
RILSAN® Polyamid Fine Powder Coating Receives NSF Certification for Use in Potable Water Systems;hhtp://www.elf-atochem.com; Philadelphia, PA; Sep. 26, 1997.
PRAS; 0906 1 90 70 70; Nylons.

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