The invention relates to a method of pulping, wherein wood matter is cooked by using white liquor, chemical pulp is separated from resulting black liquor for further processing, and black liquor is concentrated.
The traditional paper fibres of paper craftsmen and the chemical pulp do not have the rugged and fragmented appearance of mechanical pulp.
The present invention relates to a new and environmentally sound process for the manufacturing of a chemical pulp from lignocellulosic material with an integrated recovery system for recovery of pulping chemicals.
The invention relates to a process for the bleaching of chemical pulp, process which comprises one or several oxidation steps and one or several alkali treatment steps and in which the pulp is treated with an enzyme.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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