DE3876429T2 - Peroxid-bleichverfahren. - Google Patents

Peroxid-bleichverfahren.

Info

Publication number
DE3876429T2
DE3876429T2 DE8888901957T DE3876429T DE3876429T2 DE 3876429 T2 DE3876429 T2 DE 3876429T2 DE 8888901957 T DE8888901957 T DE 8888901957T DE 3876429 T DE3876429 T DE 3876429T DE 3876429 T2 DE3876429 T2 DE 3876429T2
Authority
DE
Germany
Prior art keywords
acid
pulp
suspension
peroxide bleaching
bleaching method
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
DE8888901957T
Other languages
English (en)
Other versions
DE3876429D1 (de
Inventor
Lars Magnus Qvist
Joseph Kubat
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.)
Kemira Kemi AB
Original Assignee
Kemira Kemi AB
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 Kemi AB filed Critical Kemira Kemi AB
Application granted granted Critical
Publication of DE3876429D1 publication Critical patent/DE3876429D1/de
Publication of DE3876429T2 publication Critical patent/DE3876429T2/de
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)
DE8888901957T 1987-02-12 1988-02-12 Peroxid-bleichverfahren. Expired - Fee Related DE3876429T2 (de)

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 (en) 1987-02-12 1988-02-12 An improved peroxide bleaching method
CA000612006A CA1333650C (en) 1987-02-12 1989-09-19 Peroxide bleaching method

Publications (2)

Publication Number Publication Date
DE3876429D1 DE3876429D1 (de) 1993-01-14
DE3876429T2 true DE3876429T2 (de) 1993-07-01

Family

ID=25673050

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888901957T Expired - Fee Related DE3876429T2 (de) 1987-02-12 1988-02-12 Peroxid-bleichverfahren.

Country Status (7)

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

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
BE633420A (de) * 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
ATE83016T1 (de) 1992-12-15
CA1333650C (en) 1994-12-27
FI91545C (fi) 1994-07-11
FI893742A0 (fi) 1989-08-08
WO1988006202A1 (en) 1988-08-25
DE3876429D1 (de) 1993-01-14
SE8700569D0 (sv) 1987-02-12
FI91545B (fi) 1994-03-31
EP0348411B1 (de) 1992-12-02
EP0348411A1 (de) 1990-01-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee