FI52876B - - Google Patents

Info

Publication number
FI52876B
FI52876B FI2578/74A FI257874A FI52876B FI 52876 B FI52876 B FI 52876B FI 2578/74 A FI2578/74 A FI 2578/74A FI 257874 A FI257874 A FI 257874A FI 52876 B FI52876 B FI 52876B
Authority
FI
Finland
Application number
FI2578/74A
Other versions
FI257874A (fi
FI52876C (fi
Inventor
Bengt Arhippainen
Johan Gullichsen
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 FI2578/74A priority Critical patent/FI52876C/fi
Priority to AU84267/75A priority patent/AU497403B2/en
Priority to US05/608,034 priority patent/US4042452A/en
Priority to JP50105583A priority patent/JPS5149906A/ja
Priority to BR7505551*A priority patent/BR7505551A/pt
Priority to CA234,520A priority patent/CA1070058A/en
Priority to SE7509732A priority patent/SE420512B/xx
Priority to FR7526998A priority patent/FR2283989A1/fr
Publication of FI257874A publication Critical patent/FI257874A/fi
Application granted granted Critical
Publication of FI52876B publication Critical patent/FI52876B/fi
Publication of FI52876C publication Critical patent/FI52876C/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
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
FI2578/74A 1974-09-03 1974-09-03 Foerfarande foer tvaettning av en cellulosamassa fraon alkalikok FI52876C (fi)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI2578/74A FI52876C (fi) 1974-09-03 1974-09-03 Foerfarande foer tvaettning av en cellulosamassa fraon alkalikok
AU84267/75A AU497403B2 (en) 1974-09-03 1975-08-26 Washing cellulose pulp
US05/608,034 US4042452A (en) 1974-09-03 1975-08-27 Process for washing cellulose pulp from alkali digestion wherein acid is added to the washing solution
BR7505551*A BR7505551A (pt) 1974-09-03 1975-08-29 Processo aperfeicoado para lavar uma polpa de celulose proveniente da digestao alcalina
JP50105583A JPS5149906A (fi) 1974-09-03 1975-08-29
CA234,520A CA1070058A (en) 1974-09-03 1975-09-02 Process for washing cellulose pulp from alkali digestion
SE7509732A SE420512B (sv) 1974-09-03 1975-09-02 Sett att tvetta cellulosamassa fran ett alkatiskt kok
FR7526998A FR2283989A1 (fr) 1974-09-03 1975-09-03 Procede de lavage de pulpes de cellulose provenant de la digestion alcaline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI2578/74A FI52876C (fi) 1974-09-03 1974-09-03 Foerfarande foer tvaettning av en cellulosamassa fraon alkalikok

Publications (3)

Publication Number Publication Date
FI257874A FI257874A (fi) 1976-03-04
FI52876B true FI52876B (fi) 1977-08-31
FI52876C FI52876C (fi) 1978-10-17

Family

ID=8507291

Family Applications (1)

Application Number Title Priority Date Filing Date
FI2578/74A FI52876C (fi) 1974-09-03 1974-09-03 Foerfarande foer tvaettning av en cellulosamassa fraon alkalikok

Country Status (8)

Country Link
US (1) US4042452A (fi)
JP (1) JPS5149906A (fi)
AU (1) AU497403B2 (fi)
BR (1) BR7505551A (fi)
CA (1) CA1070058A (fi)
FI (1) FI52876C (fi)
FR (1) FR2283989A1 (fi)
SE (1) SE420512B (fi)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269656A (en) * 1980-04-02 1981-05-26 Ingersoll-Rand Company Wood pulp forming system and method of recovering spent chemicals
US5429717A (en) * 1986-12-22 1995-07-04 Aga Aktiebolag Method of washing of alkaline pulp by adding carbon dioxide to the pulp
SE8605510L (sv) * 1986-12-22 1987-09-17 Aga Ab Sett vid tvettning av massa
JPH0778315B2 (ja) * 1986-12-22 1995-08-23 エーヂーエー アクチボラグ アルカリ法パルプの洗浄方法
EP0296198B1 (en) * 1986-12-22 1991-09-18 Aga Aktiebolag Method for washing of alcaline pulp
FR2620144B1 (fr) * 1987-09-08 1989-12-08 Liquid Air Canada Procede de fabrication de pate a papier blanchie comportant un traitement a l'aide d'acide carbonique apres blanchiment
US5139613A (en) * 1988-01-21 1992-08-18 Canadian Liquid Air Limited Process for preparing a paper pulp using carbon dioxide as an acidifying agent for a bleached pulp
US4975148A (en) * 1988-12-06 1990-12-04 Ahlstromforetagen Svenska Ab Cold blow system for batch production of pulp
US5853535A (en) * 1991-01-28 1998-12-29 Champion International Corporation Process for manufacturing bleached pulp including recycling
US5938892A (en) * 1991-01-28 1999-08-17 Champion International Corporation Process for recycling bleach plant filtrate
US5352332A (en) * 1991-01-28 1994-10-04 Maples Gerald E Process for recycling bleach plant filtrate
US6245196B1 (en) 1999-02-02 2001-06-12 Praxair Technology, Inc. Method and apparatus for pulp yield enhancement
FI117391B (fi) * 2000-05-16 2006-09-29 Andritz Oy Menetelmä ja laitteisto massan käsittelemiseksi
JP4825709B2 (ja) * 2007-03-15 2011-11-30 三菱製紙株式会社 発泡及びピッチトラブル抑制方法
CA2793941C (en) * 2010-03-23 2015-08-18 International Paper Company Improved bctmp filtrate recycling system and method
SE541198C2 (en) * 2016-11-02 2019-04-30 Winnington Ab Defibrated tobacco raw material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1683262A (en) * 1927-04-19 1928-09-04 Brown Co Process of chemically treating and washing pulp
US1798987A (en) * 1928-09-01 1931-03-31 Champion Fibre Company Process for the manufacture of a resistant pulp for paper making
US2745712A (en) * 1953-10-22 1956-05-15 Improved Machinery Inc Process for countercurrent washing of cooking liquor out of pulp
US3308012A (en) * 1963-08-19 1967-03-07 Du Pont Use of sulfamic acid in chlorination step of multistage bleaching process
GB1217833A (en) * 1967-01-16 1970-12-31 Electric Reduction Co Improved cellulosic pulp process
US3829357A (en) * 1968-11-20 1974-08-13 Inst Paper Chem Oxidative manufacture of pulp with chlorine dioxide
US3919041A (en) * 1969-02-06 1975-11-11 Ethyl Corp Multi-stage chlorine dioxide delignification of wood pulp

Also Published As

Publication number Publication date
FI257874A (fi) 1976-03-04
CA1070058A (en) 1980-01-22
SE420512B (sv) 1981-10-12
BR7505551A (pt) 1976-08-03
FR2283989B1 (fi) 1980-11-14
SE7509732L (sv) 1976-03-04
US4042452A (en) 1977-08-16
AU497403B2 (en) 1978-12-14
FI52876C (fi) 1978-10-17
JPS5149906A (fi) 1976-04-30
FR2283989A1 (fr) 1976-04-02
AU8426775A (en) 1977-03-03

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