EP 2034090 A1 20090311 - Method and apparatus for semi-chemical pulping
Title (en)
Method and apparatus for semi-chemical pulping
Title (de)
Verfahren und Vorrichtung zum semi-chemischen Aufschliessen
Title (fr)
Procédé et appareil de semi-chimique réduction en pâte
Publication
Application
Priority
- US 95444607 P 20070807
- US 17313208 A 20080715
Abstract (en)
Method and apparatus for minimizing adherence of lignin to an extraction screen in a semi-chemical pulping process. The method and apparatus generally relate to supplying white liquor and NaOH to as to increase the pH of cooking liquor at or near an extraction screen.
IPC 8 full level
D21C 9/00 (2006.01)
CPC (source: EP)
D21C 9/008 (2013.01); D21C 7/14 (2013.01); D21C 9/08 (2013.01)
Citation (applicant)
- US 2001032711 A1 20011025 - STROMBERG C BERTIL [US], et al
- EP 0476230 A2 19920325 - KAMYR INC [US]
- US 6132556 A 20001017 - STROMBERG BERTIL C [US], et al
- US 6277240 B1 20010821 - MARCOCCIA BRUNO S [US], et al
Citation (search report)
- [X] US 2001032711 A1 20011025 - STROMBERG C BERTIL [US], et al
- [X] EP 0476230 A2 19920325 - KAMYR INC [US]
- [X] US 6132556 A 20001017 - STROMBERG BERTIL C [US], et al
- [X] US 6277240 B1 20010821 - MARCOCCIA BRUNO S [US], et al
- [A] WO 2005116328 A1 20051208 - METSO PAPER INC [FI], et al
- [A] US 5565061 A 19961015 - SALMINEN REIJO [US]
- [A] US 5536367 A 19960716 - SALMINEN REIJO K [US]
Designated contracting state (EPC)
AT DE ES FI PT SE
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2034090 A1 20090311; EP 2034090 B1 20141022; CA 2638196 A1 20090207; CA 2638196 C 20151215
DOCDB simple family (application)
EP 08013659 A 20080730; CA 2638196 A 20080718