EP 0056263 B1 19850807 - A METHOD FOR IMPROVING THE WASHING OF CELLULOSE PULPS PRODUCED FROM LIGNOCELLULOSIC MATERIAL
Title (en)
A METHOD FOR IMPROVING THE WASHING OF CELLULOSE PULPS PRODUCED FROM LIGNOCELLULOSIC MATERIAL
Publication
Application
Priority
SE 8100179 A 19810114
Abstract (en)
[origin: EP0056263A1] To provide a cleaner pulp and to obtain a higher chemical recovery during washing of chemically cooked and optionally defibrated cellulose pulp, the partially washed pulp is subjected to a mild mechanical treatment e.g. in a device (10) adapted for high-consistency treatment and provided with screwsrotating relative to each other, said treatment taking place between at least one pair of conventional washing stages (4,14).
IPC 1-7
IPC 8 full level
B62J 39/00 (2006.01); B62J 99/00 (2009.01); D21C 9/02 (2006.01); D21D 1/40 (2006.01)
CPC (source: EP)
Designated contracting state (EPC)
AT CH DE FR LI
DOCDB simple family (publication)
EP 0056263 A1 19820721; EP 0056263 B1 19850807; AT E14762 T1 19850815; AU 548277 B2 19851205; AU 7917582 A 19820722; CA 1164704 A 19840403; DE 3265116 D1 19850912; FI 69656 B 19851129; FI 69656 C 19911224; FI 820005 L 19820715; JP S57139591 A 19820828; JP S63557 B2 19880107; NO 160219 B 19881212; NO 160219 C 19890322; NO 820095 L 19820715; SE 443383 B 19860224; SE 443383 C 19870714; SE 8100179 L 19820715
DOCDB simple family (application)
EP 82100102 A 19820108; AT 82100102 T 19820108; AU 7917582 A 19820105; CA 394153 A 19820114; DE 3265116 T 19820108; FI 820005 A 19820104; JP 481982 A 19820114; NO 820095 A 19820113; SE 8100179 A 19810114