GB1360839A - Method and apparatus for bleaching fibrous material - Google Patents

Method and apparatus for bleaching fibrous material

Info

Publication number
GB1360839A
GB1360839A GB3463471A GB3463471A GB1360839A GB 1360839 A GB1360839 A GB 1360839A GB 3463471 A GB3463471 A GB 3463471A GB 3463471 A GB3463471 A GB 3463471A GB 1360839 A GB1360839 A GB 1360839A
Authority
GB
United Kingdom
Prior art keywords
pulp
column
height
bleached
tower
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
GB3463471A
Other languages
English (en)
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
Publication of GB1360839A publication Critical patent/GB1360839A/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)
GB3463471A 1970-07-24 1971-07-23 Method and apparatus for bleaching fibrous material Expired GB1360839A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE10238/70A SE341868B (enExample) 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
GB1360839A true GB1360839A (en) 1974-07-24

Family

ID=27484474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3463471A Expired GB1360839A (en) 1970-07-24 1971-07-23 Method and apparatus for bleaching fibrous material

Country Status (6)

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

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
FR2099568B1 (enExample) 1973-06-29
DE2135217C3 (de) 1974-10-31
CA980062A (en) 1975-12-23
DE2135217B2 (de) 1974-03-07
FR2099568A1 (enExample) 1972-03-17
AT316301B (de) 1974-07-10
US4022654A (en) 1977-05-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee