EP 0181028 A2 19860514 - Apparatus and process for producing raw of bleached chemimechanical wood pulps by a continuous impregnation process.
Title (en)
Apparatus and process for producing raw of bleached chemimechanical wood pulps by a continuous impregnation process.
Title (de)
Vorrichtung und Verfahren zum Herstellen von rohem oder gebleichtem chemimechanischem Holzstoff durch ein kontinuierliches Imprägnierungsverfahren.
Title (fr)
Dispositif et procédé pour produire des pâtes de bois chimio-mécaniques brutes ou blanchies par un procédé continu d'imprégnation.
Publication
Application
Priority
IT 4687684 A 19841109
Abstract (en)
An apparatus and process for producing chemimechanical wood pulp wherein the mixture is fed from a first tank, into which the product and reagents are continuously fed, to a series of successive tanks of which at least one can be kept substantially empty in turn, the level of the product suspension present in each tank being able to be externally set so that the flow from one tank to another and thus the total product reaction time become controlled in accordance with said level, it also being possible to keep those products simultaneously present in the plant but with different characteristics separate from each other by virtue of said tank which is kept substantially empty in turn.
IPC 1-7
IPC 8 full level
D21B 1/02 (2006.01)
CPC (source: EP)
D21B 1/021 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB LI LU NL SE
DOCDB simple family (publication)
EP 0181028 A2 19860514; EP 0181028 A3 19870128; EP 0181028 B1 19890329; AT E41793 T1 19890415; DE 3569133 D1 19890503; IT 1181139 B 19870923; IT 8446876 A0 19841109; IT 8446876 A1 19860509
DOCDB simple family (application)
EP 85201730 A 19851023; AT 85201730 T 19851023; DE 3569133 T 19851023; IT 4687684 A 19841109