FI864411A0 - Foerfarande foer blekning av kemiska pappersmassor. - Google Patents

Foerfarande foer blekning av kemiska pappersmassor.

Info

Publication number
FI864411A0
FI864411A0 FI864411A FI864411A FI864411A0 FI 864411 A0 FI864411 A0 FI 864411A0 FI 864411 A FI864411 A FI 864411A FI 864411 A FI864411 A FI 864411A FI 864411 A0 FI864411 A0 FI 864411A0
Authority
FI
Finland
Prior art keywords
pulp
alkaline extraction
pappersmassor
kemiska
treatment
Prior art date
Application number
FI864411A
Other languages
English (en)
Other versions
FI864411A (fi
FI85294B (fi
Inventor
Lucien Bourson
Original Assignee
Atochem
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9324477&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI864411(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atochem filed Critical Atochem
Publication of FI864411A0 publication Critical patent/FI864411A0/fi
Publication of FI864411A publication Critical patent/FI864411A/fi
Application granted granted Critical
Publication of FI85294B publication Critical patent/FI85294B/fi

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
    • D21C9/1026—Other features in bleaching processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Detergent Compositions (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
FI864411A 1985-10-30 1986-10-29 Foerfarande foer blekning av kemiska pappersmassor. FI85294B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8516332 1985-10-30
FR8516332A FR2589494B1 (fr) 1985-10-30 1985-10-30 Procede de blanchiment de pates papetieres chimiques

Publications (3)

Publication Number Publication Date
FI864411A0 true FI864411A0 (fi) 1986-10-29
FI864411A FI864411A (fi) 1987-05-01
FI85294B FI85294B (fi) 1991-12-13

Family

ID=9324477

Family Applications (1)

Application Number Title Priority Date Filing Date
FI864411A FI85294B (fi) 1985-10-30 1986-10-29 Foerfarande foer blekning av kemiska pappersmassor.

Country Status (11)

Country Link
EP (1) EP0222674B1 (fi)
JP (1) JPS62141188A (fi)
AT (1) ATE48291T1 (fi)
AU (1) AU603556B2 (fi)
DE (2) DE3667184D1 (fi)
ES (1) ES2000019B3 (fi)
FI (1) FI85294B (fi)
FR (1) FR2589494B1 (fi)
NO (1) NO864319L (fi)
PT (1) PT83649B (fi)
ZA (1) ZA868275B (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4031597A1 (de) * 1990-10-05 1992-04-09 Sueddeutsche Kalkstickstoff Verfahren zur chlorarmen bleiche und delignifizierung von zellstoff
US6569284B1 (en) * 1996-09-24 2003-05-27 International Paper Company Elemental-chlorine-free bleaching process having an initial Eo or Eop stage
FR3062138B1 (fr) 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Procede de blanchiment d'une pate a papier

Also Published As

Publication number Publication date
AU603556B2 (en) 1990-11-22
EP0222674B1 (fr) 1989-11-29
ZA868275B (en) 1987-06-24
PT83649B (pt) 1989-05-31
JPS62141188A (ja) 1987-06-24
EP0222674A1 (fr) 1987-05-20
JPH0116958B2 (fi) 1989-03-28
PT83649A (fr) 1986-11-01
FI864411A (fi) 1987-05-01
FR2589494B1 (fr) 1988-07-29
DE222674T1 (de) 1987-10-15
AU6449286A (en) 1987-05-07
DE3667184D1 (de) 1990-01-04
NO864319D0 (no) 1986-10-29
ES2000019B3 (es) 1990-03-16
ES2000019A4 (es) 1987-09-16
FI85294B (fi) 1991-12-13
ATE48291T1 (de) 1989-12-15
NO864319L (no) 1987-05-04
FR2589494A1 (fr) 1987-05-07

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Legal Events

Date Code Title Description
FA Application withdrawn

Owner name: ATOCHEM