ZA918441B - Pulping process - Google Patents

Pulping process

Info

Publication number
ZA918441B
ZA918441B ZA918441A ZA918441A ZA918441B ZA 918441 B ZA918441 B ZA 918441B ZA 918441 A ZA918441 A ZA 918441A ZA 918441 A ZA918441 A ZA 918441A ZA 918441 B ZA918441 B ZA 918441B
Authority
ZA
South Africa
Prior art keywords
digester
pulping process
bleaching
pulp
treatments
Prior art date
Application number
ZA918441A
Other languages
English (en)
Inventor
Ethan Kim Andrews
Kim Andrews Ethan
Fernando E Mera
E Mera Fernando
Lawrence K Swift
K Swift Lawrence
Original Assignee
Beloit Corp
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 Beloit Corp filed Critical Beloit Corp
Publication of ZA918441B publication Critical patent/ZA918441B/xx

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
    • 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
    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1031—Pulse, dynamic, displacement processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Prostheses (AREA)
  • Radiation-Therapy Devices (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Drying Of Semiconductors (AREA)
  • Materials For Photolithography (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
ZA918441A 1990-10-24 1991-10-23 Pulping process ZA918441B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60260590A 1990-10-24 1990-10-24

Publications (1)

Publication Number Publication Date
ZA918441B true ZA918441B (en) 1992-07-29

Family

ID=24412030

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA918441A ZA918441B (en) 1990-10-24 1991-10-23 Pulping process

Country Status (14)

Country Link
EP (1) EP0554391B1 (xx)
CN (1) CN1028250C (xx)
AT (1) ATE151824T1 (xx)
AU (1) AU9022291A (xx)
CA (1) CA2094819C (xx)
DE (1) DE69125722T2 (xx)
ES (1) ES2101830T3 (xx)
FI (1) FI931854A (xx)
MX (1) MX9101706A (xx)
NO (1) NO302187B1 (xx)
PL (1) PL168216B1 (xx)
RU (1) RU2068904C1 (xx)
WO (1) WO1992007994A1 (xx)
ZA (1) ZA918441B (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936338A (ja) * 1982-08-24 1984-02-28 Matsushita Electric Ind Co Ltd 光デイスク記録再生方法
USH1690H (en) * 1995-07-20 1997-11-04 Nye; Jeffrey Process for bleaching kraft pulp
FR2885371B1 (fr) * 2005-05-03 2007-08-03 Cie Ind De La Matiere Vegetale Installation pour la mise en oeuvre d'un procede de production de pate a papier, de lignines et de sucres et procede de production au moyen d'une telle installation
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
CN103498375B (zh) * 2013-09-24 2015-06-03 昆明理工大学 一种光叶楮白皮的制浆方法
BR102014027199B1 (pt) * 2014-07-14 2022-10-04 Nalco Company Método para aprimorar a fabricação de polpa de soda ou kraft

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE353105C (de) * 1921-07-16 1922-05-18 Leopold Enge Verfahren zur Herstellung von Holzstoff
SE373397C (sv) * 1972-03-30 1984-02-06 Mo Och Domsjoe Ab Sett att forbettra blekningsforloppet vid bleknig av cellulosamassa med en syre innehallande gas
US4578149A (en) * 1981-03-05 1986-03-25 Fagerlund Bertil K E Process for digesting cellulosic material with heat recovery

Also Published As

Publication number Publication date
DE69125722T2 (de) 1997-09-04
AU9022291A (en) 1992-05-26
EP0554391A1 (en) 1993-08-11
MX9101706A (es) 1992-06-05
CA2094819C (en) 1999-02-02
ES2101830T3 (es) 1997-07-16
NO302187B1 (no) 1998-02-02
RU2068904C1 (ru) 1996-11-10
DE69125722D1 (de) 1997-05-22
CN1061452A (zh) 1992-05-27
WO1992007994A1 (en) 1992-05-14
FI931854A0 (fi) 1993-04-23
FI931854A (fi) 1993-04-23
CA2094819A1 (en) 1992-04-25
EP0554391B1 (en) 1997-04-16
ATE151824T1 (de) 1997-05-15
PL168216B1 (pl) 1996-01-31
NO931486L (no) 1993-04-22
NO931486D0 (no) 1993-04-22
CN1028250C (zh) 1995-04-19

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