ATE151824T1 - Aufschlussverfahren - Google Patents

Aufschlussverfahren

Info

Publication number
ATE151824T1
ATE151824T1 AT92900022T AT92900022T ATE151824T1 AT E151824 T1 ATE151824 T1 AT E151824T1 AT 92900022 T AT92900022 T AT 92900022T AT 92900022 T AT92900022 T AT 92900022T AT E151824 T1 ATE151824 T1 AT E151824T1
Authority
AT
Austria
Prior art keywords
digester
digestation
bleaching
pulp
treatments
Prior art date
Application number
AT92900022T
Other languages
English (en)
Inventor
Ethan K Andrews
Fernando E Mera
Lawrence K Swift
Original Assignee
Beloit Technologies Inc
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 Technologies Inc filed Critical Beloit Technologies Inc
Application granted granted Critical
Publication of ATE151824T1 publication Critical patent/ATE151824T1/de

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)
  • Drying Of Semiconductors (AREA)
  • Materials For Photolithography (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Radiation-Therapy Devices (AREA)
  • Prostheses (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
AT92900022T 1990-10-24 1991-10-07 Aufschlussverfahren ATE151824T1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE151824T1 true ATE151824T1 (de) 1997-05-15

Family

ID=24412030

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92900022T ATE151824T1 (de) 1990-10-24 1991-10-07 Aufschlussverfahren

Country Status (14)

Country Link
EP (1) EP0554391B1 (de)
CN (1) CN1028250C (de)
AT (1) ATE151824T1 (de)
AU (1) AU9022291A (de)
CA (1) CA2094819C (de)
DE (1) DE69125722T2 (de)
ES (1) ES2101830T3 (de)
FI (1) FI931854A0 (de)
MX (1) MX9101706A (de)
NO (1) NO302187B1 (de)
PL (1) PL168216B1 (de)
RU (1) RU2068904C1 (de)
WO (1) WO1992007994A1 (de)
ZA (1) ZA918441B (de)

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
ES2101830T3 (es) 1997-07-16
AU9022291A (en) 1992-05-26
ZA918441B (en) 1992-07-29
WO1992007994A1 (en) 1992-05-14
RU2068904C1 (ru) 1996-11-10
CN1028250C (zh) 1995-04-19
CA2094819A1 (en) 1992-04-25
NO302187B1 (no) 1998-02-02
MX9101706A (es) 1992-06-05
CN1061452A (zh) 1992-05-27
FI931854A (fi) 1993-04-23
EP0554391A1 (de) 1993-08-11
DE69125722D1 (de) 1997-05-22
NO931486L (no) 1993-04-22
NO931486D0 (no) 1993-04-22
PL168216B1 (pl) 1996-01-31
CA2094819C (en) 1999-02-02
FI931854A0 (fi) 1993-04-23
EP0554391B1 (de) 1997-04-16
DE69125722T2 (de) 1997-09-04

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee