alkaline eru00e4keittomenetelmu00e4 kuitumateriaalille

摘要

A batch process for production of alkaline Pulp from wood chips.Where the chips pre heated undergo extensive Impregnation step outside the Digester for at least 60 minutes, preferably more.At a temperature not exceeding the Boiling Point of the solution Impregnation to atmospheric conditions and a Rapid period of Heating and cooking in the Digester under 90Min approximately, preferably Shorter, followed by Cooling at a Lower reaction temperature.Fresh Alkali is added during the period of Heating / Cooking Impregnation.