CA1333650C - Methode de blanchiment au peroxyde - Google Patents

Methode de blanchiment au peroxyde

Info

Publication number
CA1333650C
CA1333650C CA000612006A CA612006A CA1333650C CA 1333650 C CA1333650 C CA 1333650C CA 000612006 A CA000612006 A CA 000612006A CA 612006 A CA612006 A CA 612006A CA 1333650 C CA1333650 C CA 1333650C
Authority
CA
Canada
Prior art keywords
acid
pulp
bleaching
suspension
peroxide
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CA000612006A
Other languages
English (en)
Inventor
Josef Kubat
Lars Magnus Qvist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority to SE8700569A priority Critical patent/SE8700569D0/xx
Priority to PCT/SE1988/000055 priority patent/WO1988006202A1/fr
Priority to EP88901957A priority patent/EP0348411B1/fr
Priority to AT88901957T priority patent/ATE83016T1/de
Priority to DE8888901957T priority patent/DE3876429T2/de
Priority to FI893742A priority patent/FI91545C/fi
Application filed by Individual filed Critical Individual
Priority to CA000612006A priority patent/CA1333650C/fr
Application granted granted Critical
Publication of CA1333650C publication Critical patent/CA1333650C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
CA000612006A 1987-02-12 1989-09-19 Methode de blanchiment au peroxyde Expired - Fee Related CA1333650C (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8700569A SE8700569D0 (sv) 1987-02-12 1987-02-12 An improved peroxide bleaching method
PCT/SE1988/000055 WO1988006202A1 (fr) 1987-02-12 1988-02-12 Methode amelioree de decoloration au peroxyde
EP88901957A EP0348411B1 (fr) 1987-02-12 1988-02-12 Methode amelioree de decoloration au peroxyde
AT88901957T ATE83016T1 (de) 1987-02-12 1988-02-12 Peroxid-bleichverfahren.
DE8888901957T DE3876429T2 (de) 1987-02-12 1988-02-12 Peroxid-bleichverfahren.
FI893742A FI91545C (fi) 1987-02-12 1989-08-08 Parannettu peroksidivalkaisumenetelmä
CA000612006A CA1333650C (fr) 1987-02-12 1989-09-19 Methode de blanchiment au peroxyde

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE8700569A SE8700569D0 (sv) 1987-02-12 1987-02-12 An improved peroxide bleaching method
PCT/SE1988/000055 WO1988006202A1 (fr) 1987-02-12 1988-02-12 Methode amelioree de decoloration au peroxyde
CA000612006A CA1333650C (fr) 1987-02-12 1989-09-19 Methode de blanchiment au peroxyde

Publications (1)

Publication Number Publication Date
CA1333650C true CA1333650C (fr) 1994-12-27

Family

ID=25673050

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000612006A Expired - Fee Related CA1333650C (fr) 1987-02-12 1989-09-19 Methode de blanchiment au peroxyde

Country Status (7)

Country Link
EP (1) EP0348411B1 (fr)
AT (1) ATE83016T1 (fr)
CA (1) CA1333650C (fr)
DE (1) DE3876429T2 (fr)
FI (1) FI91545C (fr)
SE (1) SE8700569D0 (fr)
WO (1) WO1988006202A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE505980C2 (sv) * 1993-12-23 1997-10-27 Bim Kemi Ab Sätt att förhindra peroxidnedbrytande enzymer vid blekning med väteperoxid
DE19516151A1 (de) * 1995-05-03 1996-11-07 Sven Siegle Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung
FI115470B (fi) * 1996-02-19 2005-05-13 Kemira Oyj Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi
FI115641B (fi) * 1996-02-19 2005-06-15 Kemira Oyj Korkeasaantomassojen valkaisumenetelmä

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE633420A (fr) * 1962-07-16
DE2219505C3 (de) * 1972-04-21 1974-10-17 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Chlorfreie Mehrstufenbleiche von Zellstoff

Also Published As

Publication number Publication date
WO1988006202A1 (fr) 1988-08-25
DE3876429T2 (de) 1993-07-01
SE8700569D0 (sv) 1987-02-12
FI893742A0 (fi) 1989-08-08
FI91545B (fi) 1994-03-31
ATE83016T1 (de) 1992-12-15
DE3876429D1 (de) 1993-01-14
EP0348411B1 (fr) 1992-12-02
EP0348411A1 (fr) 1990-01-03
FI91545C (fi) 1994-07-11

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Legal Events

Date Code Title Description
MKLA Lapsed