DE3667184D1 - Verfahren zum bleichen von chemischen holzpulpen. - Google Patents

Verfahren zum bleichen von chemischen holzpulpen.

Info

Publication number
DE3667184D1
DE3667184D1 DE8686420266T DE3667184T DE3667184D1 DE 3667184 D1 DE3667184 D1 DE 3667184D1 DE 8686420266 T DE8686420266 T DE 8686420266T DE 3667184 T DE3667184 T DE 3667184T DE 3667184 D1 DE3667184 D1 DE 3667184D1
Authority
DE
Germany
Prior art keywords
pulp
alkaline extraction
treatment
bleaching chemical
chlorine dioxide
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.)
Revoked
Application number
DE8686420266T
Other languages
German (de)
English (en)
Inventor
Lucien Bourson
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.)
Arkema France SA
Original Assignee
Atochem SA
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=DE3667184(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atochem SA filed Critical Atochem SA
Application granted granted Critical
Publication of DE3667184D1 publication Critical patent/DE3667184D1/de
Anticipated expiration legal-status Critical
Revoked 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
    • D21C9/1026—Other features in bleaching processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
DE8686420266T 1985-10-30 1986-10-28 Verfahren zum bleichen von chemischen holzpulpen. Revoked DE3667184D1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3667184D1 true DE3667184D1 (de) 1990-01-04

Family

ID=9324477

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8686420266T Revoked DE3667184D1 (de) 1985-10-30 1986-10-28 Verfahren zum bleichen von chemischen holzpulpen.
DE198686420266T Pending DE222674T1 (de) 1985-10-30 1986-10-28 Verfahren zum bleichen von chemischen holzpulpen.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE198686420266T Pending DE222674T1 (de) 1985-10-30 1986-10-28 Verfahren zum bleichen von chemischen holzpulpen.

Country Status (11)

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

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
AU6449286A (en) 1987-05-07
JPH0116958B2 (OSRAM) 1989-03-28
NO864319D0 (no) 1986-10-29
FR2589494A1 (fr) 1987-05-07
FI85294B (fi) 1991-12-13
NO864319L (no) 1987-05-04
DE222674T1 (de) 1987-10-15
FI864411L (fi) 1987-05-01
JPS62141188A (ja) 1987-06-24
AU603556B2 (en) 1990-11-22
PT83649A (fr) 1986-11-01
EP0222674A1 (fr) 1987-05-20
PT83649B (pt) 1989-05-31
ZA868275B (en) 1987-06-24
FI864411A0 (fi) 1986-10-29
ATE48291T1 (de) 1989-12-15
ES2000019B3 (es) 1990-03-16
EP0222674B1 (fr) 1989-11-29
FR2589494B1 (fr) 1988-07-29
ES2000019A4 (es) 1987-09-16

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation