Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 10, 2008
Patent Application Number
10169209
Date Filed
December 20, 2000
Patent Primary Examiner
Patent 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.
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