CA1176408A - Methode de defibrage des pates par recours a l'oxygene - Google Patents

Methode de defibrage des pates par recours a l'oxygene

Info

Publication number
CA1176408A
CA1176408A CA000385272A CA385272A CA1176408A CA 1176408 A CA1176408 A CA 1176408A CA 000385272 A CA000385272 A CA 000385272A CA 385272 A CA385272 A CA 385272A CA 1176408 A CA1176408 A CA 1176408A
Authority
CA
Canada
Prior art keywords
pulp
oxygen
reaction zone
reaction
consistency
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
CA000385272A
Other languages
English (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
Application granted granted Critical
Publication of CA1176408A publication Critical patent/CA1176408A/fr
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
    • 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)
CA000385272A 1980-09-05 1981-09-04 Methode de defibrage des pates par recours a l'oxygene Expired CA1176408A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18451480A 1980-09-05 1980-09-05
US184,514 1988-04-21

Publications (1)

Publication Number Publication Date
CA1176408A true CA1176408A (fr) 1984-10-23

Family

ID=22677195

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000385272A Expired CA1176408A (fr) 1980-09-05 1981-09-04 Methode de defibrage des pates par recours a l'oxygene

Country Status (8)

Country Link
EP (1) EP0047656A1 (fr)
JP (1) JPS57121687A (fr)
AU (1) AU543014B2 (fr)
CA (1) CA1176408A (fr)
ES (1) ES8205285A1 (fr)
FI (1) FI812725A7 (fr)
NO (1) NO813009L (fr)
ZA (1) ZA816105B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5736004A (en) * 1995-03-03 1998-04-07 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5672247A (en) * 1995-03-03 1997-09-30 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 (fr) * 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
ES505210A0 (es) 1982-06-01
FI812725L (fi) 1982-03-06
ZA816105B (en) 1982-09-29
ES8205285A1 (es) 1982-06-01
JPS57121687A (en) 1982-07-29
FI812725A7 (fi) 1982-03-06
NO813009L (no) 1982-03-08
AU543014B2 (en) 1985-03-28
AU7492281A (en) 1982-03-11
EP0047656A1 (fr) 1982-03-17

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Legal Events

Date Code Title Description
MKEX Expiry