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:
Jul. 23, 2024
Filed:
Jul. 19, 2011
Iiris Joensuu, Espoo, FI;
Marjatta Piironen, Oulu, FI;
Eija Saari, Espoo, FI;
Jukka-pekka Sirviö, Espoo, FI;
Seppo Tuomivaara, Kiviniemi, FI;
Iiris Joensuu, Espoo, FI;
Marjatta Piironen, Oulu, FI;
Eija Saari, Espoo, FI;
Jukka-Pekka Sirviö, Espoo, FI;
Seppo Tuomivaara, Kiviniemi, FI;
KEMIRA OYJ, Helsinki, FI;
Abstract
The invention concerns an online method and system for monitoring properties of an aqueous stream of an industrial process. The method comprises providing an initial aqueous stream originating from said process, the aqueous stream containing solid matter exhibiting a first settling behavior; adding modifying agent to the initial aqueous stream at an addition rate sufficient to provide a modified aqueous stream containing solid matter exhibiting a second settling behavior different from the first settling behavior; conducting a sample of the initial aqueous stream or modified aqueous stream, any combination stream comprising the modified aqueous stream or any substream of the modified aqueous stream batchwise from a sampling point to a settling vessel having a volume; and measuring the settling behavior of the solid matter in the sample locally in the settling vessel as a function of time. The invention can be used for efficient monitoring and, optionally, controlling the degree of agglomeration of pulp and paper or board manufacturing processes.