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FI960755A - Menetelmä selluloosamateriaalin käsittelemiseksi - Google Patents

Menetelmä selluloosamateriaalin käsittelemiseksi Download PDF

Info

Publication number
FI960755A
FI960755A FI960755A FI960755A FI960755A FI 960755 A FI960755 A FI 960755A FI 960755 A FI960755 A FI 960755A FI 960755 A FI960755 A FI 960755A FI 960755 A FI960755 A FI 960755A
Authority
FI
Finland
Prior art keywords
treating
cellulosic material
cellulosic
Prior art date
Application number
FI960755A
Other languages
English (en)
Swedish (sv)
Other versions
FI960755A0 (fi
FI115470B (fi
Inventor
Ilkka Renvall
Reijo Aksela
Elias Suokas
Aarto Paren
Original Assignee
Kemira Chemicals Oy
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 Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Priority to FI960755A priority Critical patent/FI115470B/fi
Publication of FI960755A0 publication Critical patent/FI960755A0/fi
Priority to AU17972/97A priority patent/AU1797297A/en
Priority to PCT/FI1997/000105 priority patent/WO1997030207A1/en
Publication of FI960755A publication Critical patent/FI960755A/fi
Application granted granted Critical
Publication of FI115470B publication Critical patent/FI115470B/fi

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
    • D21C9/1042—Use of chelating agents
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI960755A 1996-02-19 1996-02-19 Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi FI115470B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI960755A FI115470B (fi) 1996-02-19 1996-02-19 Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi
AU17972/97A AU1797297A (en) 1996-02-19 1997-02-19 Process for bleaching of chemical pulp
PCT/FI1997/000105 WO1997030207A1 (en) 1996-02-19 1997-02-19 Process for bleaching of chemical pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI960755 1996-02-19
FI960755A FI115470B (fi) 1996-02-19 1996-02-19 Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi

Publications (3)

Publication Number Publication Date
FI960755A0 FI960755A0 (fi) 1996-02-19
FI960755A true FI960755A (fi) 1997-08-20
FI115470B FI115470B (fi) 2005-05-13

Family

ID=8545484

Family Applications (1)

Application Number Title Priority Date Filing Date
FI960755A FI115470B (fi) 1996-02-19 1996-02-19 Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi

Country Status (3)

Country Link
AU (1) AU1797297A (fi)
FI (1) FI115470B (fi)
WO (1) WO1997030207A1 (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI106258B (fi) 1998-03-09 2000-12-29 Kemira Chemicals Oy Menetelmiä N-bis-[2-(1,2-dikarboksi-etoksi)-etyyli]amiinijohdannaisen valmistamiseksi sekä menetelmien tuotteet ja niiden käytöt
GB0721587D0 (en) * 2007-11-02 2007-12-12 Innospec Ltd Process for bleaching pulp
US20130042986A1 (en) * 2010-02-12 2013-02-21 Dequest Ag Method for pulp bleaching
WO2014116468A1 (en) * 2013-01-23 2014-07-31 Buckman Laboratories International, Inc. Bleach stabilizer compositions and methods
FI127900B (fi) * 2014-05-27 2019-05-15 Upm Kymmene Corp Menetelmä fosforikuormituksen vähentämiseksi massantuotantoprosessin jätevedestä

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338260C1 (de) * 1983-10-21 1985-07-25 Benckiser-Knapsack Gmbh, 6802 Ladenburg Verfahren und Mittel zum Bleichen von Holzschliff
SE8700569D0 (sv) * 1987-02-12 1987-02-12 Josef Kubat An improved peroxide bleaching method
DE3820160C2 (de) * 1987-06-26 1998-10-08 Clariant Finance Bvi Ltd Konzentriertes Präparat und dessen Verwendung als Stabilisator für alkalische peroxydhaltige Flotten
GB9216408D0 (en) * 1992-08-01 1992-09-16 Procter & Gamble Stabilized bleaching compositions
DE19528843A1 (de) * 1995-08-04 1997-02-06 Cht R Beitlich Gmbh Verfahren zur Stabilisierung von alkalischen peroxidenthaltenden Bleichflotten für die Bleiche von Zellstoffen und anderen Faserstoffen

Also Published As

Publication number Publication date
WO1997030207A1 (en) 1997-08-21
FI960755A0 (fi) 1996-02-19
AU1797297A (en) 1997-09-02
FI115470B (fi) 2005-05-13

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