CA1087354A - Procede de cuisson aux alcalis et delignification des matieres cellulosiques - Google Patents

Procede de cuisson aux alcalis et delignification des matieres cellulosiques

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)
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/fr
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 Procede de cuisson aux alcalis et delignification des matieres cellulosiques Expired CA1087354A (fr)

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 (fr) 1980-10-14

Family

ID=13245403

Family Applications (1)

Application Number Title Priority Date Filing Date
CA278,709A Expired CA1087354A (fr) 1976-06-01 1977-05-18 Procede de cuisson aux alcalis et delignification des matieres cellulosiques

Country Status (6)

Country Link
JP (1) JPS52148201A (fr)
BR (1) BR7703560A (fr)
CA (1) CA1087354A (fr)
FI (1) FI771724A (fr)
FR (1) FR2353673A1 (fr)
SE (1) SE7706370L (fr)

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 (3)

* 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 (fr) * 1981-02-09 1982-08-14
MY189667A (en) * 2016-05-27 2022-02-24 Fibratech Pte Ltd A method and a system for production of high molecular weight lignin

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 (fr) * 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
BR7703560A (pt) 1978-12-19
JPS52148201A (en) 1977-12-09
JPS5325045B2 (fr) 1978-07-25
FR2353673A1 (fr) 1977-12-30
FI771724A (fr) 1977-12-02
SE7706370L (sv) 1977-12-02

Similar Documents

Publication Publication Date Title
CA2166618C (fr) Procede de fabrication de pate
EP0512590B1 (fr) Procédé de blanchiment de matériaux contenant de la lignocellulose
JPH05500243A (ja) リグノセルロース物質の環境上改良された漂白方法
JPS61138793A (ja) 強化酸化抽出法
US4283251A (en) Ozone effluent bleaching
US4462864A (en) Process for the delignification of unbleached chemical pulp
US4089737A (en) Delignification of cellulosic material with an alkaline aqueous medium containing oxygen dissolved therein
EP0776394B1 (fr) Ameliorations de la reduction du bois en pate avec controle des solides dissous
US5085734A (en) Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
JP2010144273A (ja) リグノセルロース物質の化学パルプの製造方法
CA1087354A (fr) Procede de cuisson aux alcalis et delignification des matieres cellulosiques
US4406735A (en) Process for alkaline oxygen gas bleaching of cellulose pulp
EP1945852B1 (fr) Utilisation d'ions carbonate pour solubiliser les matière extractibles dans un procede d'extraktion de la résine de une pate à papier
NZ242356A (en) Process for preparing bleached paper pulp comprising: treating chips with a reducing agent, then alkaline hydrogen peroxide, followed by refining
JP2667058B2 (ja) パルプの製造方法
US5645687A (en) Process for manufacturing bleached pulp with reduced chloride production
EP0627030A4 (en) Modified digestion of paper pulp followed by ozone bleaching.
CA1147909A (fr) Methode de defibrage et de blanchiment de la pate de cellulose
US5500084A (en) Method and apparatus for pulping cellulosic material using a vessel with an impergnation zone and an attrition zone
US1768820A (en) Method of bleaching pulp
KR100538083B1 (ko) 리그노셀룰로오스성 물질의 산소 탈리그닌화
US3661698A (en) Production of pulp by a multi-stage ammonium polysulphide pulping process
JPH0726350B2 (ja) パルプの高脱リグニン選択性を得る方法
AU3256001A (en) Pulping process
WO1995006773A1 (fr) Blanchiment d'une pâte a papier a concentration moyenne avec de l'ozone, apres decoloration de cette pâte a haute concentration avec de l'ozone

Legal Events

Date Code Title Description
MKEX Expiry