DE2610891A1 - Verfahren zum delignifizieren von ligninhaltigem material - Google Patents

Verfahren zum delignifizieren von ligninhaltigem material

Info

Publication number
DE2610891A1
DE2610891A1 DE19762610891 DE2610891A DE2610891A1 DE 2610891 A1 DE2610891 A1 DE 2610891A1 DE 19762610891 DE19762610891 DE 19762610891 DE 2610891 A DE2610891 A DE 2610891A DE 2610891 A1 DE2610891 A1 DE 2610891A1
Authority
DE
Germany
Prior art keywords
oxygen
substance
transferring substance
wood
delignifying
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.)
Ceased
Application number
DE19762610891
Other languages
German (de)
English (en)
Inventor
Eero Vilhelm Sjoestroem
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.)
Ahlstrom Corp
Original Assignee
Ahlstrom Corp
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 Ahlstrom Corp filed Critical Ahlstrom Corp
Publication of DE2610891A1 publication Critical patent/DE2610891A1/de
Ceased 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
    • 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
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Gas Separation By Absorption (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
DE19762610891 1975-03-18 1976-03-16 Verfahren zum delignifizieren von ligninhaltigem material Ceased DE2610891A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI750799A FI51833C (sv) 1975-03-18 1975-03-18

Publications (1)

Publication Number Publication Date
DE2610891A1 true DE2610891A1 (de) 1976-09-30

Family

ID=8509062

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762610891 Ceased DE2610891A1 (de) 1975-03-18 1976-03-16 Verfahren zum delignifizieren von ligninhaltigem material

Country Status (7)

Country Link
JP (1) JPS51119801A (sv)
CA (1) CA1088261A (sv)
DE (1) DE2610891A1 (sv)
FI (1) FI51833C (sv)
FR (1) FR2304718A1 (sv)
NO (1) NO760908L (sv)
SE (1) SE428939B (sv)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5374104A (en) * 1976-12-14 1978-07-01 Canadian Ind Lignin removing method of lignocellulose material
JPS5374102A (en) * 1976-12-14 1978-07-01 Canadian Ind Lignin removing method of lignocellulose material
JPS5374103A (en) * 1976-12-14 1978-07-01 Canadian Ind Lignin removing method of lignocellulose material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512806A (en) * 1978-07-04 1980-01-29 Oji Paper Co Alkali pulp producing method
SE413785B (sv) * 1978-09-22 1980-06-23 Mo Och Domsjoe Ab Forfarande for uppslutning av lignocellulosahaltiga material genom alkalisk kokning i nervaro av ett tillsatsemne av redoxtyp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI52877B (sv) * 1972-11-16 1977-08-31 Ahlstroem Oy

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5374104A (en) * 1976-12-14 1978-07-01 Canadian Ind Lignin removing method of lignocellulose material
JPS5374102A (en) * 1976-12-14 1978-07-01 Canadian Ind Lignin removing method of lignocellulose material
JPS5374103A (en) * 1976-12-14 1978-07-01 Canadian Ind Lignin removing method of lignocellulose material
JPS5345402B2 (sv) * 1976-12-14 1978-12-06
JPS5345403B2 (sv) * 1976-12-14 1978-12-06
JPS5345404B2 (sv) * 1976-12-14 1978-12-06

Also Published As

Publication number Publication date
SE428939B (sv) 1983-08-01
JPS51119801A (en) 1976-10-20
CA1088261A (en) 1980-10-28
FI750799A (sv) 1976-09-19
FR2304718B1 (sv) 1979-08-31
NO760908L (sv) 1976-09-21
FI51833B (sv) 1976-12-31
FI51833C (sv) 1978-01-24
SE7603352L (sv) 1976-09-19
FR2304718A1 (fr) 1976-10-15

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Legal Events

Date Code Title Description
OD Request for examination
8131 Rejection