FI893742A0 - Parannettu peroksidivalkaisumenetelmä - Google Patents

Parannettu peroksidivalkaisumenetelmä

Info

Publication number
FI893742A0
FI893742A0 FI893742A FI893742A FI893742A0 FI 893742 A0 FI893742 A0 FI 893742A0 FI 893742 A FI893742 A FI 893742A FI 893742 A FI893742 A FI 893742A FI 893742 A0 FI893742 A0 FI 893742A0
Authority
FI
Finland
Prior art keywords
acid
pulp
bleaching process
peroxide bleaching
suspension
Prior art date
Application number
FI893742A
Other languages
English (en)
Swedish (sv)
Other versions
FI91545C (fi
FI91545B (fi
Inventor
Josef Kubat
Lars Magnus Qvist
Original Assignee
Josef Kubat
Lars Magnus Qvist
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 Josef Kubat, Lars Magnus Qvist filed Critical Josef Kubat
Publication of FI893742A0 publication Critical patent/FI893742A0/fi
Application granted granted Critical
Publication of FI91545B publication Critical patent/FI91545B/fi
Publication of FI91545C publication Critical patent/FI91545C/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
    • D21C9/16—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)
FI893742A 1987-02-12 1989-08-08 Parannettu peroksidivalkaisumenetelmä FI91545C (fi)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE8700569A SE8700569D0 (sv) 1987-02-12 1987-02-12 An improved peroxide bleaching method
SE8700569 1987-02-12
PCT/SE1988/000055 WO1988006202A1 (en) 1987-02-12 1988-02-12 An improved peroxide bleaching method
SE8800055 1988-02-12
CA612006 1989-09-19
CA000612006A CA1333650C (en) 1987-02-12 1989-09-19 Peroxide bleaching method

Publications (3)

Publication Number Publication Date
FI893742A0 true FI893742A0 (fi) 1989-08-08
FI91545B FI91545B (fi) 1994-03-31
FI91545C FI91545C (fi) 1994-07-11

Family

ID=25673050

Family Applications (1)

Application Number Title Priority Date Filing Date
FI893742A FI91545C (fi) 1987-02-12 1989-08-08 Parannettu peroksidivalkaisumenetelmä

Country Status (7)

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

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
FI115641B (fi) * 1996-02-19 2005-06-15 Kemira Oyj Korkeasaantomassojen valkaisumenetelmä
FI115470B (fi) * 1996-02-19 2005-05-13 Kemira Oyj Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL293489A (fi) * 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
EP0348411B1 (en) 1992-12-02
ATE83016T1 (de) 1992-12-15
DE3876429D1 (de) 1993-01-14
WO1988006202A1 (en) 1988-08-25
EP0348411A1 (en) 1990-01-03
FI91545C (fi) 1994-07-11
DE3876429T2 (de) 1993-07-01
CA1333650C (en) 1994-12-27
SE8700569D0 (sv) 1987-02-12
FI91545B (fi) 1994-03-31

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Legal Events

Date Code Title Description
BB Publication of examined application
MM Patent lapsed
MM Patent lapsed

Owner name: KUBáT, JOSEF

Owner name: QVIST, LARS MAGNUS