PROCESS FOR REMOVING INTERFERING SUBSTANCES IN THE PRODUCTION OF MECHANICAL PULP AND PROCESS FOR PRODUCING MECHANICAL PULP

摘要

The invention relates to a method for removing an extractive during the
production of mechanical pulp, the method comprising a step for impregnating
chopped ligno-cellulosic material intended for use in pulp production before
mechanical defibration with a liquid containing a peracid at a maximum pH
value of 7, the amount of peracid being 0.5-20 kg/ton of dry lignocellulosic
material, indicated as 100 % peracid. The invention also relates to a method
for producing mechanical pulp.