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:
Nov. 05, 1991
Filed:
Mar. 29, 1990
Applicant:
Inventors:
Paavo Hyoty, Tampere, FI;
Erik Saiha, Tampere, FI;
Assignee:
Oy Tampella AB, Tampere, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162 31 ; 162 49 ; 110185 ; 110186 ; 110238 ;
Abstract
A method for regulating the feed and/or combustion conditions of concentrated waste liquors of varying chemnical and physical properties, for their burning in a soda recovery unit, by determining the maximum expansion upon heating of a dry matter particle of the liquor to be fed into the soda recovery unit, and by regulating the feed and/or combustion conditions on the basis of the expansion thus determined. The measure used for the expansion is the ratio of the lignin present in the concentrated liquor to any one or several of the acids present in the concentrated liquor, such as aliphatic acids.