FI51833C - - Google Patents

Info

Publication number
FI51833C
FI51833C FI750799A FI750799A FI51833C FI 51833 C FI51833 C FI 51833C FI 750799 A FI750799 A FI 750799A FI 750799 A FI750799 A FI 750799A FI 51833 C FI51833 C FI 51833C
Authority
FI
Finland
Application number
FI750799A
Other languages
Finnish (fi)
Other versions
FI750799A (cs
FI51833B (cs
Inventor
Eero Vilhelm Sjoestroem
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Priority to FI750799A priority Critical patent/FI51833C/fi
Priority to DE19762610891 priority patent/DE2610891A1/de
Priority to NO760908A priority patent/NO760908L/no
Priority to CA248,067A priority patent/CA1088261A/en
Priority to SE7603352A priority patent/SE428939B/xx
Priority to FR7607856A priority patent/FR2304718A1/fr
Priority to JP51028696A priority patent/JPS51119801A/ja
Publication of FI750799A publication Critical patent/FI750799A/fi
Publication of FI51833B publication Critical patent/FI51833B/fi
Application granted granted Critical
Publication of FI51833C publication Critical patent/FI51833C/fi

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)
FI750799A 1975-03-18 1975-03-18 FI51833C (cs)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI750799A FI51833C (cs) 1975-03-18 1975-03-18
DE19762610891 DE2610891A1 (de) 1975-03-18 1976-03-16 Verfahren zum delignifizieren von ligninhaltigem material
NO760908A NO760908L (cs) 1975-03-18 1976-03-16
CA248,067A CA1088261A (en) 1975-03-18 1976-03-17 Process for the delignification of a cellulose- containing material with an oxidizing gas in an aklaline milieu
SE7603352A SE428939B (sv) 1975-03-18 1976-03-17 Forfarande for delignifiering av ett ligninhaltigt material
FR7607856A FR2304718A1 (fr) 1975-03-18 1976-03-18 Procede de delignification de materiaux contenant de la lignine
JP51028696A JPS51119801A (en) 1975-03-18 1976-03-18 Process for separating lignin from lignin containing material

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
FI750799A FI750799A (cs) 1976-09-19
FI51833B FI51833B (cs) 1976-12-31
FI51833C true FI51833C (cs) 1978-01-24

Family

ID=8509062

Family Applications (1)

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

Country Status (7)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036680A (en) * 1976-12-14 1977-07-19 Canadian Industries, Ltd. Delignification of lignocellulosic material with a soda pulping liquor containing a Diels Alder adduct of benzoquinone or naphthoquinone in admixture with a nitro aromatic compound
US4036681A (en) * 1976-12-14 1977-07-19 Canadian Industries, Ltd. Delignification of lignocellulosic material with an alkaline pulping liquor containing a Diels Alder adduct of benzoquinone or naphthoquinone
CA1094264A (en) * 1976-12-14 1981-01-27 Canadian Industries Limited Delignification of lignocellulosic material with a soda liquor containing a cyclic keto compound and a nitro aromatic compound
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 (cs) * 1972-11-16 1977-08-31 Ahlstroem Oy

Also Published As

Publication number Publication date
FR2304718A1 (fr) 1976-10-15
JPS51119801A (en) 1976-10-20
FR2304718B1 (cs) 1979-08-31
NO760908L (cs) 1976-09-21
CA1088261A (en) 1980-10-28
SE428939B (sv) 1983-08-01
FI750799A (cs) 1976-09-19
DE2610891A1 (de) 1976-09-30
FI51833B (cs) 1976-12-31
SE7603352L (sv) 1976-09-19

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: RAUMA-REPOLA OY