Filter aid used in alluviation

Details Filter aid used in alluviation Filter aid used in alluviation

2008-01-08

2008-01-08

Hendricks, Keith (Department: 1761)

Food or edible material: processes, compositions, and products

Processes

Treatment of liquid with nongaseous material other than...

C426S423000

Reexamination Certificate

active

07316825

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:
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patent: 5484620 (1996-01-01), Oeschle et al.
patent: 0483099 (1997-04-01), None
patent: WO9617923 (1996-06-01), None
Rilsan® Polyamid Fine Powder Coating Receives NSF Certification for Use in Potable Water Systems, Philadelphia, PA; Sep. 26, 1997 at http://www.elf-atochem.com.
PRAS; 9069 1 90 80 70; Nylons, date unknown.
MatWeb—Online Material Data Sheet, Jul. 18, 2007.
Orgasol Polyamide Powders, Arkema, 2000.
Polyamide 11 fine powder rilsan: comparison between accelerated and natural ageing, no date is available.

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