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FI20000801L - Method for controlling the delignification and bleaching of pulp suspension - Google Patents

Method for controlling the delignification and bleaching of pulp suspension Download PDF

Info

Publication number
FI20000801L
FI20000801L FI20000801A FI20000801A FI20000801L FI 20000801 L FI20000801 L FI 20000801L FI 20000801 A FI20000801 A FI 20000801A FI 20000801 A FI20000801 A FI 20000801A FI 20000801 L FI20000801 L FI 20000801L
Authority
FI
Finland
Prior art keywords
delignification
bleaching
controlling
pulp suspension
pulp
Prior art date
Application number
FI20000801A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20000801A0 (en
FI109209B (en
Inventor
Petri Juhana Jokinen
Jarmo Tapio Kahala
Hannu Sakari Sonni
Original Assignee
Aga Ab
Stora Enso Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aga Ab, Stora Enso Oyj filed Critical Aga Ab
Priority to FI20000801A priority Critical patent/FI109209B/en
Publication of FI20000801A0 publication Critical patent/FI20000801A0/en
Priority to PCT/FI2001/000326 priority patent/WO2001075220A1/en
Priority to US10/240,685 priority patent/US20030168190A1/en
Priority to EP01925600A priority patent/EP1278909A1/en
Priority to CA002405325A priority patent/CA2405325A1/en
Priority to AU2001252300A priority patent/AU2001252300A1/en
Publication of FI20000801L publication Critical patent/FI20000801L/en
Application granted granted Critical
Publication of FI109209B publication Critical patent/FI109209B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI20000801A 2000-04-05 2000-04-05 Procedure for checking delignification and bleaching of a pulp slurry FI109209B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FI20000801A FI109209B (en) 2000-04-05 2000-04-05 Procedure for checking delignification and bleaching of a pulp slurry
PCT/FI2001/000326 WO2001075220A1 (en) 2000-04-05 2001-04-04 A method for controlling the delignification and bleaching of a pulp suspension
US10/240,685 US20030168190A1 (en) 2000-04-05 2001-04-04 Method for controlling the delignfication and bleaching of a pulp suspension
EP01925600A EP1278909A1 (en) 2000-04-05 2001-04-04 A method for controlling the delignification and bleaching of a pulp suspension
CA002405325A CA2405325A1 (en) 2000-04-05 2001-04-04 A method for controlling the delignification and bleaching of a pulp suspension
AU2001252300A AU2001252300A1 (en) 2000-04-05 2001-04-04 A method for controlling the delignification and bleaching of a pulp suspension

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20000801A FI109209B (en) 2000-04-05 2000-04-05 Procedure for checking delignification and bleaching of a pulp slurry
FI20000801 2000-04-05

Publications (3)

Publication Number Publication Date
FI20000801A0 FI20000801A0 (en) 2000-04-05
FI20000801L true FI20000801L (en) 2001-10-06
FI109209B FI109209B (en) 2002-06-14

Family

ID=8558126

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20000801A FI109209B (en) 2000-04-05 2000-04-05 Procedure for checking delignification and bleaching of a pulp slurry

Country Status (6)

Country Link
US (1) US20030168190A1 (en)
EP (1) EP1278909A1 (en)
AU (1) AU2001252300A1 (en)
CA (1) CA2405325A1 (en)
FI (1) FI109209B (en)
WO (1) WO2001075220A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE514687C2 (en) * 1999-07-09 2001-04-02 Sca Graphic Res Ab Method for the elimination of harmful substances in a process fluid
US20050045291A1 (en) * 2002-08-08 2005-03-03 Martin Ragnar Reduction of organically bound chlorine formed in chlorine dioxide bleaching
BRPI0708794B1 (en) * 2006-03-13 2016-10-11 Fp Innovations process for delignification of a lignocellulosic pulp in an aqueous suspension
WO2009050882A1 (en) * 2007-10-17 2009-04-23 Nippon Steel Chemical Co., Ltd. Production methods for solubilized lignin, saccharide raw material and monosaccharide raw material, and solubilized lignin
SE1150015A1 (en) * 2011-01-12 2012-07-13 Wallenius Water Ab Ozone bleaching of pulp
WO2021141712A1 (en) * 2020-01-09 2021-07-15 Westrock Mwv, Llc Method for manufacturing bleached pulp from a feedstock comprising recycled paper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB815247A (en) * 1955-07-19 1959-06-24 Columbia Cellulose Company Ltd Bleaching woob pulps
SE8605510L (en) * 1986-12-22 1987-09-17 Aga Ab KEEP WASHING THE PASS
US5139613A (en) * 1988-01-21 1992-08-18 Canadian Liquid Air Limited Process for preparing a paper pulp using carbon dioxide as an acidifying agent for a bleached pulp
FI991241A7 (en) * 1999-06-01 2000-12-02 Aga Ab Lignin bleaching and method for making paper

Also Published As

Publication number Publication date
FI20000801A0 (en) 2000-04-05
FI109209B (en) 2002-06-14
EP1278909A1 (en) 2003-01-29
AU2001252300A1 (en) 2001-10-15
US20030168190A1 (en) 2003-09-11
CA2405325A1 (en) 2001-10-11
WO2001075220A1 (en) 2001-10-11

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Legal Events

Date Code Title Description
MA Patent expired