BR7505551A - Processo aperfeicoado para lavar uma polpa de celulose proveniente da digestao alcalina - Google Patents

Processo aperfeicoado para lavar uma polpa de celulose proveniente da digestao alcalina

Info

Publication number
BR7505551A
BR7505551A BR7505551*A BR7505551A BR7505551A BR 7505551 A BR7505551 A BR 7505551A BR 7505551 A BR7505551 A BR 7505551A BR 7505551 A BR7505551 A BR 7505551A
Authority
BR
Brazil
Prior art keywords
washing
cellulose pulp
alkaline digestion
perfect process
perfect
Prior art date
Application number
BR7505551*A
Other languages
English (en)
Inventor
B Arhippainen
J Gullichsen
Original Assignee
Keyhtio A
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 Keyhtio A filed Critical Keyhtio A
Publication of BR7505551A publication Critical patent/BR7505551A/pt

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)
BR7505551*A 1974-09-03 1975-08-29 Processo aperfeicoado para lavar uma polpa de celulose proveniente da digestao alcalina BR7505551A (pt)

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 (1)

Publication Number Publication Date
BR7505551A true BR7505551A (pt) 1976-08-03

Family

ID=8507291

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7505551*A BR7505551A (pt) 1974-09-03 1975-08-29 Processo aperfeicoado para lavar uma polpa de celulose proveniente da digestao alcalina

Country Status (8)

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

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
EP0296198B1 (en) * 1986-12-22 1991-09-18 Aga Aktiebolag Method for washing of alcaline pulp
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
SE8605510L (sv) * 1986-12-22 1987-09-17 Aga Ab Sett vid tvettning av massa
US5429717A (en) * 1986-12-22 1995-07-04 Aga Aktiebolag Method of washing of alkaline pulp by adding carbon dioxide to the 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
US5352332A (en) * 1991-01-28 1994-10-04 Maples Gerald E Process for recycling bleach plant filtrate
US5938892A (en) * 1991-01-28 1999-08-17 Champion International Corporation 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
WO2011119423A2 (en) 2010-03-23 2011-09-29 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
AU497403B2 (en) 1978-12-14
FI52876C (fi) 1978-10-17
CA1070058A (en) 1980-01-22
FR2283989A1 (fr) 1976-04-02
JPS5149906A (pt) 1976-04-30
FI52876B (pt) 1977-08-31
SE420512B (sv) 1981-10-12
AU8426775A (en) 1977-03-03
US4042452A (en) 1977-08-16
FR2283989B1 (pt) 1980-11-14
SE7509732L (sv) 1976-03-04
FI257874A (pt) 1976-03-04

Similar Documents

Publication Publication Date Title
BR7505551A (pt) Processo aperfeicoado para lavar uma polpa de celulose proveniente da digestao alcalina
AU462469B2 (en) A process for bleaching cellulose pulp
JPS52155202A (en) Process for making cellulose pulp
BR7501340A (pt) Processo para alvejar polpa de celulose
BR7806453A (pt) Processo e aparelho para a producao de polpa de celulose
BR7908799A (pt) Processo para refinacao de polpas de celulose
CA1035483A (en) Process for drying polymer-modified cellulose fibres
BR7204335D0 (pt) Processo aperfeicoado para a producao de esteres secundarios de celulose
BR7304978D0 (pt) Processo para producao de polpa de celulose
BR7410122A (pt) Processo de producao de polpa
BR7703215A (pt) Processo para a fabricacao de polpa de celulose
BR7306897D0 (pt) Processo para manufatura de novos corantes reativos a celulose
BR7403179D0 (pt) Processo para a estampagem de texteis de celulose
BR7708218A (pt) Processo para a producao de pasta de celulose
BR7100799D0 (pt) Processo continuo para a esterificacao de celulose esterificada
BR7301663D0 (pt) Processo de producao de celulose de materias primas de lignocelulose
BR7505927A (pt) Processo para a fabricacao de peliculas de celulose regenerada modificada
BR7702080A (pt) Processo de fabricacao,a partir de material de madeira,de uma polpa de refinador termo-mecanico quimicamente modificada
BR7304637D0 (pt) Processo para alvejar polpa de celulose
CA928009A (en) Method for manufacturing sulfite pulp cooking liquor from sulfite pulp spent liquor
IT1056128B (it) Procedimento per la produzione di cellulosa secondo il procedimento al solfito
CH609395A5 (en) Environmentally friendly process for the manufacture of bleached sulphite cellulose
ZA754902B (en) Pulp bleaching process
BR7410024A (pt) Processo e instalacao para a manufatura de polpa de celulose destinada a fabricacao de papel e papelao
BR7407491D0 (pt) Processo para a digestao de madeira