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:
Jun. 10, 2008
Filed:
Dec. 20, 2000
Applicants:
Päivi Uusitalo, Noormarkku, FI;
Mikael Svedman, Pori, FI;
Jukka Vaistomaa, Pori, FI;
Hannu Haaslahti, Kortela, FI;
Inventors:
Päivi Uusitalo, Noormarkku, FI;
Mikael Svedman, Pori, FI;
Jukka Vaistomaa, Pori, FI;
Hannu Haaslahti, Kortela, FI;
Assignee:
Metso Paper Pori Oy, , FI;
Primary Examiner:
Int. Cl.
CPC ...
D21C 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for the preparation of pulp by means of alkaline cooking, in which method spent liquor is transferred to pressurized tanks, and at least one liquor is expanded corresponding to a temperature difference of 1 to 5° C. The generated steam is led to turpentine recovery. Thus, the removal of turpentine and gases dissolved in said liquor is effective, the amount of recovered turpentine increases, and pulp of better washability and higher quality is obtained.