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. 24, 1982
Filed:
Jan. 14, 1981
Applicant:
Inventor:
Ann-Sofi Jonsson, Genarp, SE;
Assignee:
Eur-Control Kalle AB, , SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2323 / ; 162 49 ; 162 61 ; 162 62 ; 422 68 ; 422 78 ;
Abstract
A method and a device for determining the lignin content in pulp by measuring the temperature increase on chlorination of a pulp sample with well-defined moisture content. The pulp sample is dewatered by pressing and simultaneously being blown through by a gas having low oxidization activity, subsequent to which the maximum temperature increase is registered when the pulp sample is blown through by chlorine gas.