FR2173173A1 - Delignification of wood - for paper paste mfr - Google Patents

Delignification of wood - for paper paste mfr

Info

Publication number
FR2173173A1
FR2173173A1 FR7306281A FR7306281A FR2173173A1 FR 2173173 A1 FR2173173 A1 FR 2173173A1 FR 7306281 A FR7306281 A FR 7306281A FR 7306281 A FR7306281 A FR 7306281A FR 2173173 A1 FR2173173 A1 FR 2173173A1
Authority
FR
France
Prior art keywords
wood
delignification
mfr
paper
paper paste
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.)
Granted
Application number
FR7306281A
Other languages
English (en)
French (fr)
Other versions
FR2173173B1 (OSRAM
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.)
Jujo Paper Co Ltd
Original Assignee
Jujo Paper Co Ltd
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
Priority claimed from JP1834372A external-priority patent/JPS4887101A/ja
Priority claimed from JP2915972A external-priority patent/JPS4893702A/ja
Priority claimed from JP2915872A external-priority patent/JPS4893701A/ja
Priority claimed from JP2915772A external-priority patent/JPS4893703A/ja
Application filed by Jujo Paper Co Ltd filed Critical Jujo Paper Co Ltd
Publication of FR2173173A1 publication Critical patent/FR2173173A1/fr
Application granted granted Critical
Publication of FR2173173B1 publication Critical patent/FR2173173B1/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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
    • D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these compounds
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • 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
    • D21C3/18—Pulping cellulose-containing materials with halogens or halogen-generating compounds

Landscapes

  • Paper (AREA)
FR7306281A 1972-02-22 1973-02-22 Delignification of wood - for paper paste mfr Granted FR2173173A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP1834372A JPS4887101A (OSRAM) 1972-02-22 1972-02-22
JP2915972A JPS4893702A (OSRAM) 1972-03-23 1972-03-23
JP2915872A JPS4893701A (OSRAM) 1972-03-23 1972-03-23
JP2915772A JPS4893703A (OSRAM) 1972-03-23 1972-03-23

Publications (2)

Publication Number Publication Date
FR2173173A1 true FR2173173A1 (en) 1973-10-05
FR2173173B1 FR2173173B1 (OSRAM) 1975-10-31

Family

ID=27456941

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7306281A Granted FR2173173A1 (en) 1972-02-22 1973-02-22 Delignification of wood - for paper paste mfr

Country Status (2)

Country Link
CA (1) CA982758A (OSRAM)
FR (1) FR2173173A1 (OSRAM)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR646154A (fr) * 1927-02-14 1928-11-08 Procédé d'obtention de demi-pâtes chimiques susceptibles d'être blanchies, en vue de la fabrication de papier du type mi-fin
FR1035329A (fr) * 1951-04-12 1953-08-21 Procédé d'obtention de pâtes utilisables en papeterie, cartonnerie ou autres industries, à partir de bois ou végétaux annuels, et pâtes en résultant
FR1262703A (fr) * 1960-04-21 1961-06-05 Fabrication de pâte à partir de matières ligno-cellulosiques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR646154A (fr) * 1927-02-14 1928-11-08 Procédé d'obtention de demi-pâtes chimiques susceptibles d'être blanchies, en vue de la fabrication de papier du type mi-fin
FR1035329A (fr) * 1951-04-12 1953-08-21 Procédé d'obtention de pâtes utilisables en papeterie, cartonnerie ou autres industries, à partir de bois ou végétaux annuels, et pâtes en résultant
FR1262703A (fr) * 1960-04-21 1961-06-05 Fabrication de pâte à partir de matières ligno-cellulosiques

Also Published As

Publication number Publication date
FR2173173B1 (OSRAM) 1975-10-31
CA982758A (en) 1976-02-03

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse