The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2013
Filed:
May. 24, 2005
Applicants:
Patrik Lownertz, Taby, SE;
Magnus Ingelman, Karlstad, SE;
Inventors:
Patrik Lownertz, Taby, SE;
Magnus Ingelman, Karlstad, SE;
Assignee:
Metso Paper Sweden AB, Sundsvall, SE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 29/64 (2006.01); B01D 29/68 (2006.01); D21C 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The method and arrangement is for cleaning at least one of filter sheets and filter cakes in a pressurized white liquor filter with spray nozzles and driving fluid. The white liquor filter is used in a causticizing process in which green liquor is causticized before the white liquor filter by the addition of lime and in which it forms during the process a lime mud slurry. The white liquor filteris used to separate white liquor from the lime mud. The driving fluid for the spray nozzle is constituted principally by the filtrate that is obtained from the filter.