ATE343674T1 - Verfahren zum bleichen von holzstoff und chemothermomechanischer pulpe - Google Patents

Verfahren zum bleichen von holzstoff und chemothermomechanischer pulpe

Info

Publication number
ATE343674T1
ATE343674T1 AT01906451T AT01906451T ATE343674T1 AT E343674 T1 ATE343674 T1 AT E343674T1 AT 01906451 T AT01906451 T AT 01906451T AT 01906451 T AT01906451 T AT 01906451T AT E343674 T1 ATE343674 T1 AT E343674T1
Authority
AT
Austria
Prior art keywords
pulp
bleaching
location
bleaching agent
fibres
Prior art date
Application number
AT01906451T
Other languages
English (en)
Inventor
Yijing Zhang
Yonghao Ni
Shuyu Wang
Original Assignee
Holmen Aktiebolag
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 Holmen Aktiebolag filed Critical Holmen Aktiebolag
Application granted granted Critical
Publication of ATE343674T1 publication Critical patent/ATE343674T1/de

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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
AT01906451T 2000-02-11 2001-02-08 Verfahren zum bleichen von holzstoff und chemothermomechanischer pulpe ATE343674T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0000431A SE515708C2 (sv) 2000-02-11 2000-02-11 Blekning av förblekt mekanisk massa med oxiderande blekmedel förstärkt med borhydrid

Publications (1)

Publication Number Publication Date
ATE343674T1 true ATE343674T1 (de) 2006-11-15

Family

ID=20278409

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01906451T ATE343674T1 (de) 2000-02-11 2001-02-08 Verfahren zum bleichen von holzstoff und chemothermomechanischer pulpe

Country Status (9)

Country Link
US (1) US20030121625A1 (de)
EP (1) EP1266074B1 (de)
JP (1) JP2003522846A (de)
AT (1) ATE343674T1 (de)
CA (1) CA2395824A1 (de)
DE (1) DE60124081T2 (de)
ES (1) ES2269348T3 (de)
SE (1) SE515708C2 (de)
WO (1) WO2001059205A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121311B (fi) * 2005-05-03 2010-09-30 M Real Oyj Menetelmä paperin- ja kartonginvalmistukseen soveltuvan mekaanisen massan valmistamiseksi
US20100224333A1 (en) * 2009-03-09 2010-09-09 Prasad Duggirala Method and chemical composition to improve efficiency of mechanical pulp
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100732A (en) * 1959-10-05 1963-08-13 Du Pont Process of bleaching wood pulp by combined treatment with peroxide and an alkali metal borohydride
CA1249402A (en) * 1984-12-21 1989-01-31 Pulp And Paper Research Institute Of Canada Multistage brightening of high yield and ultra high- yield wood pulps
JPH0197291A (ja) * 1987-10-05 1989-04-14 Fmc Corp 機械パルプの漂白方法

Also Published As

Publication number Publication date
EP1266074B1 (de) 2006-10-25
DE60124081T2 (de) 2007-06-06
SE0000431L (sv) 2001-08-12
CA2395824A1 (en) 2001-08-16
SE0000431D0 (sv) 2000-02-11
SE515708C2 (sv) 2001-10-01
WO2001059205A1 (en) 2001-08-16
ES2269348T3 (es) 2007-04-01
EP1266074A1 (de) 2002-12-18
DE60124081D1 (de) 2006-12-07
JP2003522846A (ja) 2003-07-29
US20030121625A1 (en) 2003-07-03

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