CA1039908A - Process for the delignification of lignocellulosic material - Google Patents

Process for the delignification of lignocellulosic material

Info

Publication number
CA1039908A
CA1039908A CA221,564A CA221564A CA1039908A CA 1039908 A CA1039908 A CA 1039908A CA 221564 A CA221564 A CA 221564A CA 1039908 A CA1039908 A CA 1039908A
Authority
CA
Canada
Prior art keywords
delignification
process according
manganous
alkali
oxygen
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.)
Expired
Application number
CA221,564A
Other languages
English (en)
French (fr)
Inventor
Hans O. Samuelson
Kjell E. Abrahamsson
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.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo AB
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 Mo och Domsjo AB filed Critical Mo och Domsjo AB
Application granted granted Critical
Publication of CA1039908A publication Critical patent/CA1039908A/en
Expired 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
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Processing Of Solid Wastes (AREA)
CA221,564A 1974-03-14 1975-03-07 Process for the delignification of lignocellulosic material Expired CA1039908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7403451A SE380298B (sv) 1974-03-14 1974-03-14 Forfarande for delignifiering genom syrgas-alkalibehandling av lignocelluosahaltigt material

Publications (1)

Publication Number Publication Date
CA1039908A true CA1039908A (en) 1978-10-10

Family

ID=20320524

Family Applications (1)

Application Number Title Priority Date Filing Date
CA221,564A Expired CA1039908A (en) 1974-03-14 1975-03-07 Process for the delignification of lignocellulosic material

Country Status (13)

Country Link
JP (1) JPS522002B2 (pt)
AT (1) AT345658B (pt)
BR (1) BR7501339A (pt)
CA (1) CA1039908A (pt)
CH (1) CH606601A5 (pt)
DE (1) DE2509746C3 (pt)
FI (1) FI750635A (pt)
FR (1) FR2264125B1 (pt)
GB (1) GB1500011A (pt)
IT (1) IT1030236B (pt)
NO (1) NO140605C (pt)
SE (1) SE380298B (pt)
ZA (1) ZA751266B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7601935L (sv) * 1975-06-30 1976-12-31 Int Paper Co Sett att bleka lignincellulosamassa
JPS6134314A (ja) * 1984-07-25 1986-02-18 Kawasaki Heavy Ind Ltd 内燃機関
IN167959B (pt) * 1985-08-05 1991-01-12 Interox
AU591509B2 (en) * 1985-08-05 1989-12-07 Interox Societe Anonyme Process for the delignification of cellulosic substances
FI122654B (fi) * 1997-12-08 2012-05-15 Ovivo Luxembourg Sarl Menetelmä paperisellumassan valmistamiseksi
US20100159515A1 (en) * 2008-12-19 2010-06-24 E.I. Du Pont De Nemours And Company Oxidative pretreatment of biomass to enhance enzymatic saccharification

Also Published As

Publication number Publication date
AT345658B (de) 1978-09-25
GB1500011A (en) 1978-02-08
ATA178875A (de) 1978-01-15
IT1030236B (it) 1979-03-30
DE2509746B2 (de) 1977-08-18
FI750635A (pt) 1975-09-15
NO140605B (no) 1979-06-25
JPS522002B2 (pt) 1977-01-19
FR2264125B1 (pt) 1977-11-18
FR2264125A1 (pt) 1975-10-10
NO140605C (no) 1979-10-03
CH606601A5 (pt) 1978-11-15
DE2509746A1 (de) 1975-09-25
SE7403451L (pt) 1975-09-15
SE380298B (sv) 1975-11-03
NO750744L (pt) 1975-09-16
DE2509746C3 (de) 1978-04-27
BR7501339A (pt) 1975-12-09
JPS50121501A (pt) 1975-09-23
ZA751266B (en) 1976-01-28

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JP2588495B2 (ja) 製紙用高収率高漂白度パルプの製造方法