ATE35433T1 - Verfahren zur bereitstellung von chemischen holzpulpen hinsichtlich der bleiche. - Google Patents

Verfahren zur bereitstellung von chemischen holzpulpen hinsichtlich der bleiche.

Info

Publication number
ATE35433T1
ATE35433T1 AT85420187T AT85420187T ATE35433T1 AT E35433 T1 ATE35433 T1 AT E35433T1 AT 85420187 T AT85420187 T AT 85420187T AT 85420187 T AT85420187 T AT 85420187T AT E35433 T1 ATE35433 T1 AT E35433T1
Authority
AT
Austria
Prior art keywords
bleaching
methods
wood pulp
preparing chemical
chemical wood
Prior art date
Application number
AT85420187T
Other languages
German (de)
English (en)
Inventor
Dominique Lachenal
Choudens Christian De
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=9309092&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE35433(T1) "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
Application granted granted Critical
Publication of ATE35433T1 publication Critical patent/ATE35433T1/de

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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
AT85420187T 1984-10-25 1985-10-22 Verfahren zur bereitstellung von chemischen holzpulpen hinsichtlich der bleiche. ATE35433T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8416518A FR2572431B1 (fr) 1984-10-25 1984-10-25 Procede pour la preparation des pates papetieres chimiques en vue du blanchiment.
EP85420187A EP0180529B2 (fr) 1984-10-25 1985-10-22 Procédé pour la préparation des pâtes papetières chimiques en vue du blanchiment

Publications (1)

Publication Number Publication Date
ATE35433T1 true ATE35433T1 (de) 1988-07-15

Family

ID=9309092

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85420187T ATE35433T1 (de) 1984-10-25 1985-10-22 Verfahren zur bereitstellung von chemischen holzpulpen hinsichtlich der bleiche.

Country Status (9)

Country Link
EP (1) EP0180529B2 (fr)
JP (1) JPS61102495A (fr)
AT (1) ATE35433T1 (fr)
AU (1) AU576394B2 (fr)
CA (1) CA1273755A (fr)
DE (2) DE3563548D1 (fr)
ES (1) ES8606557A1 (fr)
FI (1) FI82726C (fr)
FR (1) FR2572431B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1544216A (en) * 1921-08-11 1925-06-30 Donald J Campbell Molding apparatus
GB1262655A (en) * 1968-09-20 1972-02-02 Canadian Ind Bleaching of wood pulp
JPS51102103A (en) * 1975-03-05 1976-09-09 Nippon Parupu Kogyo Kk Ryusanenhoparupuno hyohakuhoho
DE2538673C2 (de) * 1975-08-30 1986-01-16 Degussa Ag, 6000 Frankfurt Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz
US4402788A (en) * 1982-04-26 1983-09-06 Champion International Corporation Process for bleaching wood pulp with hydrogen peroxide

Also Published As

Publication number Publication date
AU4910885A (en) 1986-05-29
EP0180529A1 (fr) 1986-05-07
DE180529T1 (de) 1986-12-18
AU576394B2 (en) 1988-08-25
ES8606557A1 (es) 1986-04-01
FI82726C (fi) 1991-04-10
FR2572431A1 (fr) 1986-05-02
EP0180529B1 (fr) 1988-06-29
FI854148L (fi) 1986-04-26
CA1273755A (fr) 1990-09-11
FR2572431B1 (fr) 1987-12-04
DE3563548D1 (en) 1988-08-04
JPS61102495A (ja) 1986-05-21
FI854148A0 (fi) 1985-10-23
FI82726B (fi) 1990-12-31
EP0180529B2 (fr) 1992-04-08
ES548166A0 (es) 1986-04-01

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee