CA980062A - Method and apparatus for bleaching fibrous material - Google Patents

Method and apparatus for bleaching fibrous material

Info

Publication number
CA980062A
CA980062A CA118,939A CA118939A CA980062A CA 980062 A CA980062 A CA 980062A CA 118939 A CA118939 A CA 118939A CA 980062 A CA980062 A CA 980062A
Authority
CA
Canada
Prior art keywords
fibrous material
bleaching fibrous
bleaching
fibrous
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
Application number
CA118,939A
Other languages
English (en)
Other versions
CA118939S (en
Inventor
Hans-Erik R. Engstrom
Bengt E. Pettersson
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.)
Valmet AB
Original Assignee
Sunds 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
Priority claimed from SE10238/70A external-priority patent/SE341868B/xx
Application filed by Sunds AB filed Critical Sunds AB
Application granted granted Critical
Publication of CA980062A publication Critical patent/CA980062A/en
Expired 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA118,939A 1970-07-24 1971-07-23 Method and apparatus for bleaching fibrous material Expired CA980062A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE10238/70A SE341868B (OSRAM) 1970-07-24 1970-07-24
SE202371 1971-02-17
US41434173A 1973-11-09 1973-11-09
US05/566,285 US4022654A (en) 1970-07-24 1975-04-09 Countercurrently bleaching high consistency cellulose pulp with oxygen

Publications (1)

Publication Number Publication Date
CA980062A true CA980062A (en) 1975-12-23

Family

ID=27484474

Family Applications (1)

Application Number Title Priority Date Filing Date
CA118,939A Expired CA980062A (en) 1970-07-24 1971-07-23 Method and apparatus for bleaching fibrous material

Country Status (6)

Country Link
US (1) US4022654A (OSRAM)
AT (1) AT316301B (OSRAM)
CA (1) CA980062A (OSRAM)
DE (1) DE2135217C3 (OSRAM)
FR (1) FR2099568B1 (OSRAM)
GB (1) GB1360839A (OSRAM)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105494A (en) * 1973-01-05 1978-08-08 Sunds Aktiebolag Process of gas-phase bleaching high consistency finely disintegrated pulp
FI67413C (fi) * 1977-04-27 1985-03-11 Myrens Verksted As Foerfarande foer behandling av finfoerdelad fiberhaltig eller cellulosahaltig massa samt anordning foer utfoerande av foerfarandet
US4410397A (en) * 1978-04-07 1983-10-18 International Paper Company Delignification and bleaching process and solution for lignocellulosic pulp with peroxide in the presence of metal additives
US4209359A (en) * 1978-10-23 1980-06-24 International Paper Company Process for removing residual oxygen from oxygen-bleached pulp
FI93747C (fi) * 1990-05-07 1995-05-26 Ahlstroem Oy Reaktiosäiliö
FI98836C (fi) * 1994-06-09 1997-08-25 Ahlstroem Pumput Oy Korkeasakeusmassatorni
AT402077B (de) * 1995-03-10 1997-01-27 Andritz Patentverwaltung Verfahren und vorrichtung zur behandlung, insbesondere bleichen, von faserstoff
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA632280A (en) * 1958-07-02 1961-12-05 Kimberly-Clark Corporation Manufacture of bleached cellulosic products resistant to brightness reversion
US3703435A (en) * 1967-11-09 1972-11-21 Sunds Ab Method for finely disintegrating pulp,preferentially cellulose pulp,in connection with the bleaching thereof with gaseous bleaching agent
SE333299B (sv) * 1967-11-10 1971-03-08 Sunds Ab Foerfarande vid och anordning foer blekning av foeretraedesvis cellulosamassa med gasformigt blekmedel

Also Published As

Publication number Publication date
DE2135217A1 (de) 1972-01-27
FR2099568A1 (OSRAM) 1972-03-17
AT316301B (de) 1974-07-10
DE2135217C3 (de) 1974-10-31
GB1360839A (en) 1974-07-24
US4022654A (en) 1977-05-10
FR2099568B1 (OSRAM) 1973-06-29
DE2135217B2 (de) 1974-03-07

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