CA1087354A - Process for alkali cooking and delignifying cellulosic materials - Google Patents

Process for alkali cooking and delignifying cellulosic materials

Info

Publication number
CA1087354A
CA1087354A CA278,709A CA278709A CA1087354A CA 1087354 A CA1087354 A CA 1087354A CA 278709 A CA278709 A CA 278709A CA 1087354 A CA1087354 A CA 1087354A
Authority
CA
Canada
Prior art keywords
zone
liquor
delignifying
reaction vessel
cellulosic materials
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
CA278,709A
Other languages
English (en)
French (fr)
Inventor
Tadashi Nagano
Saisei Miyao
Katsuhiko Takeda
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.)
Toyo Pulp Co Ltd
Original Assignee
Toyo Pulp 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
Application filed by Toyo Pulp Co Ltd filed Critical Toyo Pulp Co Ltd
Application granted granted Critical
Publication of CA1087354A publication Critical patent/CA1087354A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D21C3/263—Multistage processes at least one stage being in presence of oxygen

Landscapes

  • Paper (AREA)
CA278,709A 1976-06-01 1977-05-18 Process for alkali cooking and delignifying cellulosic materials Expired CA1087354A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6399776A JPS52148201A (en) 1976-06-01 1976-06-01 Process for making alkali pulp and lignin separation
JP51-63997 1976-06-01

Publications (1)

Publication Number Publication Date
CA1087354A true CA1087354A (en) 1980-10-14

Family

ID=13245403

Family Applications (1)

Application Number Title Priority Date Filing Date
CA278,709A Expired CA1087354A (en) 1976-06-01 1977-05-18 Process for alkali cooking and delignifying cellulosic materials

Country Status (6)

Country Link
JP (1) JPS52148201A (OSRAM)
BR (1) BR7703560A (OSRAM)
CA (1) CA1087354A (OSRAM)
FI (1) FI771724A7 (OSRAM)
FR (1) FR2353673A1 (OSRAM)
SE (1) SE7706370L (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728265A (en) * 1995-06-12 1998-03-17 Henkel Corporation Process for enhancing white liquor penetration into wood chips by contacting the chips with a mixture of the white liquor and a polymethylalkyl siloxane

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54156801A (en) * 1978-05-23 1979-12-11 Toyo Pulp Co Ltd Method and apparatus for producing alkali pulp
JPS57130737U (OSRAM) * 1981-02-09 1982-08-14
EP3464713B1 (en) * 2016-05-27 2023-09-27 Fibratech Pte. Ltd A method and a system for production of high molecular weight lignin
RU2669622C1 (ru) * 2018-01-31 2018-10-12 Генкин Михаил Владимирович Способ и реактор для извлечения хлорида натрия и хлорида калия из полиминеральных источников

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1367435A (fr) * 1961-12-23 1964-07-24 Kamyr Ab Procédé de digestion continue, à deux phases, de la cellulose et appareil de digestion pour la mise en oeuvre de ce procédé
GB1449828A (en) * 1973-04-26 1976-09-15 Canadian Ind Oxygen pulping process
AT334195B (de) * 1973-12-31 1976-01-10 Canadian Ind Verfahren zum entfernen von lignin aus lignocellulosematerial
JPS5241361B2 (OSRAM) * 1974-02-18 1977-10-18
FR2276420A1 (fr) * 1974-06-24 1976-01-23 Centre Tech Ind Papier Procede pour la fabrication de pates chimiques, par delignification de copeaux de matieres ligno-cellulosiques par l'oxygene en milieu alcalin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728265A (en) * 1995-06-12 1998-03-17 Henkel Corporation Process for enhancing white liquor penetration into wood chips by contacting the chips with a mixture of the white liquor and a polymethylalkyl siloxane

Also Published As

Publication number Publication date
SE7706370L (sv) 1977-12-02
FR2353673A1 (fr) 1977-12-30
BR7703560A (pt) 1978-12-19
JPS5325045B2 (OSRAM) 1978-07-25
FI771724A7 (OSRAM) 1977-12-02
JPS52148201A (en) 1977-12-09

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Legal Events

Date Code Title Description
MKEX Expiry