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.

Date of Patent:
Aug. 11, 2026

Filed:

Apr. 20, 2022
Applicant:

Valmet Ab, Sundsvall, SE;

Inventors:

Johan Skarius, Hammarö, SE;

Nicholas Rowe, Karlstad, SE;

Assignee:

VALMET AB, Sundsvall, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 11/00 (2006.01); B01D 21/01 (2006.01); B01D 21/30 (2006.01);
U.S. Cl.
CPC ...
D21C 11/0078 (2013.01); B01D 21/01 (2013.01); B01D 21/305 (2013.01);
Abstract

The present invention relates to a method for treating green liquor in a green liquor treatment arrangement, wherein the method comprises—adding () a flocculation agent to green liquor to form flocculated green liquor, —supplying () the flocculated green liquor to a clarifying vessel for separating flocculated green liquor into flocculated matter and clear green liquor, —removing () flocculated matter through a sludge outlet, and—removing () clear green liquor from the clarifying vessel, wherein the method further comprises—measuring () a flocculation of the green liquor, wherein said measuring takes place after adding the flocculation agent but before supplying the flocculated green liquor to the clarifying vessel. The invention also relates to a green liquor treatment device.


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