FR2304718B1 - - Google Patents

Info

Publication number
FR2304718B1
FR2304718B1 FR7607856A FR7607856A FR2304718B1 FR 2304718 B1 FR2304718 B1 FR 2304718B1 FR 7607856 A FR7607856 A FR 7607856A FR 7607856 A FR7607856 A FR 7607856A FR 2304718 B1 FR2304718 B1 FR 2304718B1
Authority
FR
France
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
FR7607856A
Other languages
French (fr)
Other versions
FR2304718A1 (fr
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 FR2304718A1 publication Critical patent/FR2304718A1/fr
Application granted granted Critical
Publication of FR2304718B1 publication Critical patent/FR2304718B1/fr
Granted 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)
FR7607856A 1975-03-18 1976-03-18 Procede de delignification de materiaux contenant de la lignine Granted FR2304718A1 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2304718A1 FR2304718A1 (fr) 1976-10-15
FR2304718B1 true FR2304718B1 (sv) 1979-08-31

Family

ID=8509062

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7607856A Granted FR2304718A1 (fr) 1975-03-18 1976-03-18 Procede de delignification de materiaux contenant de la lignine

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)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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

Also Published As

Publication number Publication date
NO760908L (sv) 1976-09-21
FI750799A (sv) 1976-09-19
DE2610891A1 (de) 1976-09-30
FR2304718A1 (fr) 1976-10-15
FI51833B (sv) 1976-12-31
JPS51119801A (en) 1976-10-20
SE428939B (sv) 1983-08-01
FI51833C (sv) 1978-01-24
CA1088261A (en) 1980-10-28
SE7603352L (sv) 1976-09-19

Similar Documents

Publication Publication Date Title
FI51833C (sv)
CH603014A5 (sv)
BG22340A1 (sv)
BG23030A1 (sv)
BG23147A1 (sv)
BG23303A1 (sv)
CH581801A5 (sv)
CH583875A5 (sv)
CH585570A5 (sv)
CH587944A5 (sv)
CH587975A4 (sv)
CH588871A5 (sv)
CH588987A5 (sv)
CH589275A5 (sv)
CH589464A5 (sv)
CH590141A5 (sv)
CH590451A5 (sv)
CH590555A5 (sv)
CH591831A5 (sv)
CH593402A5 (sv)
CH593685A5 (sv)
CH593733A5 (sv)
CH594836A5 (sv)
CH595031A5 (sv)
CH595613A5 (sv)

Legal Events

Date Code Title Description
ST Notification of lapse