AU543014B2 - Oxygen delignification of pulp - Google Patents

Oxygen delignification of pulp

Info

Publication number
AU543014B2
AU543014B2 AU74922/81A AU7492281A AU543014B2 AU 543014 B2 AU543014 B2 AU 543014B2 AU 74922/81 A AU74922/81 A AU 74922/81A AU 7492281 A AU7492281 A AU 7492281A AU 543014 B2 AU543014 B2 AU 543014B2
Authority
AU
Australia
Prior art keywords
pulp
oxygen delignification
delignification
oxygen
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.)
Ceased
Application number
AU74922/81A
Other versions
AU7492281A (en
Inventor
Edward F. Elton
Vincent L. Magnotta
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.)
Air Products and Chemicals Inc
Black Clawson Co
Original Assignee
Air Products and Chemicals Inc
Black Clawson Co
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 Air Products and Chemicals Inc, Black Clawson Co filed Critical Air Products and Chemicals Inc
Publication of AU7492281A publication Critical patent/AU7492281A/en
Application granted granted Critical
Publication of AU543014B2 publication Critical patent/AU543014B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • External Artificial Organs (AREA)
AU74922/81A 1980-09-05 1981-09-03 Oxygen delignification of pulp Ceased AU543014B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18451480A 1980-09-05 1980-09-05
US184514 1980-09-05

Publications (2)

Publication Number Publication Date
AU7492281A AU7492281A (en) 1982-03-11
AU543014B2 true AU543014B2 (en) 1985-03-28

Family

ID=22677195

Family Applications (1)

Application Number Title Priority Date Filing Date
AU74922/81A Ceased AU543014B2 (en) 1980-09-05 1981-09-03 Oxygen delignification of pulp

Country Status (8)

Country Link
EP (1) EP0047656A1 (en)
JP (1) JPS57121687A (en)
AU (1) AU543014B2 (en)
CA (1) CA1176408A (en)
ES (1) ES505210A0 (en)
FI (1) FI812725L (en)
NO (1) NO813009L (en)
ZA (1) ZA816105B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5736004A (en) * 1995-03-03 1998-04-07 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA918978A (en) * 1970-01-08 1973-01-16 G. Jamieson Allan Oxygen bleaching
JPS5119481B2 (en) * 1973-08-30 1976-06-17
US4363697A (en) * 1979-12-03 1982-12-14 The Black Clawson Company Method for medium consistency oxygen delignification of pulp

Also Published As

Publication number Publication date
ES8205285A1 (en) 1982-06-01
ZA816105B (en) 1982-09-29
EP0047656A1 (en) 1982-03-17
NO813009L (en) 1982-03-08
AU7492281A (en) 1982-03-11
CA1176408A (en) 1984-10-23
ES505210A0 (en) 1982-06-01
JPS57121687A (en) 1982-07-29
FI812725L (en) 1982-03-06

Similar Documents

Publication Publication Date Title
AU547231B2 (en) Oxygen bleaching cellulose pulp
AU539108B2 (en) Delignification of unbleached chemical pulp
AU6957881A (en) Brightness improvement of ozone bleached pulps
AU539178B2 (en) Oxygen bleaching chemically digested cellulose pulp
AU1730083A (en) Oxygen treatment of low connistancy pulp
AU559086B2 (en) Bleaching wood pulp
JPS5721589A (en) Bleaching of cellulose pulp by oxygen gas
AU560978B2 (en) Bleaching cellulose pulp
JPS5721591A (en) Peroxide bleaching of wood pulp
AU543014B2 (en) Oxygen delignification of pulp
AU548676B2 (en) Manufacturing bleached groundwood pulp
JPS56159384A (en) Production of mechanical cellulose pulp
AU2149983A (en) Calculating sulphite digester rate of delignification
JPS5789690A (en) Alkali oxygen delignification of fiber substance
AU528265B2 (en) Bleaching of pulp
JPS57112485A (en) Production of pulp
AU529326B2 (en) Reducing resin content of pulp
PT80866A (en) Improved delignification of pulp
AU552271B2 (en) Bleaching cellulose pulp
JPS56128388A (en) Production of cellulose pulp
AU1716783A (en) Modification of bagasse pulp
AU548046B2 (en) Bleaching cellulose pulp
JPS5721590A (en) Peroxide bleaching of wood pulp
AU539165B2 (en) Ozone effluent bleaching of pulp
AU544501B2 (en) Treating pulp with oxygen