DE3790278T1 - - Google Patents

Info

Publication number
DE3790278T1
DE3790278T1 DE19873790278 DE3790278T DE3790278T1 DE 3790278 T1 DE3790278 T1 DE 3790278T1 DE 19873790278 DE19873790278 DE 19873790278 DE 3790278 T DE3790278 T DE 3790278T DE 3790278 T1 DE3790278 T1 DE 3790278T1
Authority
DE
Germany
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.)
Withdrawn
Application number
DE19873790278
Other languages
German (de)
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 filed Critical
Publication of DE3790278T1 publication Critical patent/DE3790278T1/de
Withdrawn legal-status Critical Current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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE19873790278 1986-05-28 1987-05-27 Withdrawn DE3790278T1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI862262A FI75196C (fi) 1986-05-28 1986-05-28 Foerfarande foer foerblekning av kemiska cellulosamassor.

Publications (1)

Publication Number Publication Date
DE3790278T1 true DE3790278T1 (fr) 1988-06-01

Family

ID=8522706

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873790278 Withdrawn DE3790278T1 (fr) 1986-05-28 1987-05-27

Country Status (6)

Country Link
AT (1) AT395027B (fr)
DE (1) DE3790278T1 (fr)
FI (1) FI75196C (fr)
FR (1) FR2599398B1 (fr)
SE (1) SE8800152D0 (fr)
WO (1) WO1987007314A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE412235C (de) * 1924-02-27 1925-04-17 Armin Hillmer Verfahren zum Herausloesen des Lignins aus ligninhaltigen Zellulosefasern, Holz usw.mit Phenolen
US1705424A (en) * 1924-09-30 1929-03-12 Strecker Otto Carl Process for the production of cellulose by decomposition of vegetable fibers
DE2229673A1 (de) * 1972-06-19 1974-01-17 Schweers Verfahren zur herstellung von phenolzellstoff
EP0043342B1 (fr) * 1980-06-20 1983-12-07 Battelle Memorial Institute Méthode pour la délignification du bois et autres produits ligno-cellulosiques
US4295928A (en) * 1980-08-07 1981-10-20 Nalco Chemical Company Phenolic compounds as viscosity preservatives during hypochlorite pulp bleaching

Also Published As

Publication number Publication date
SE8800152L (sv) 1988-01-19
FI862262A0 (fi) 1986-05-28
SE8800152D0 (sv) 1988-01-19
FR2599398A1 (fr) 1987-12-04
FI75196C (fi) 1988-05-09
WO1987007314A1 (fr) 1987-12-03
ATA901387A (de) 1992-01-15
FR2599398B1 (fr) 1989-01-13
AT395027B (de) 1992-08-25
FI75196B (fi) 1988-01-29
FI862262A (fi) 1987-11-29

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: TIEDTKE, H., DIPL.-ING. BUEHLING, G., DIPL.-CHEM.

8139 Disposal/non-payment of the annual fee