NO176446C - Apparat og fremgangsmåte for delignifisering av cellulosemasse - Google Patents

Apparat og fremgangsmåte for delignifisering av cellulosemasse

Info

Publication number
NO176446C
NO176446C NO900259A NO900259A NO176446C NO 176446 C NO176446 C NO 176446C NO 900259 A NO900259 A NO 900259A NO 900259 A NO900259 A NO 900259A NO 176446 C NO176446 C NO 176446C
Authority
NO
Norway
Prior art keywords
cellulose pulp
delignifying cellulose
delignifying
pulp
cellulose
Prior art date
Application number
NO900259A
Other languages
English (en)
Norwegian (no)
Other versions
NO900259L (no
NO900259D0 (no
NO176446B (no
Inventor
Junichiro Kido
Hajime Yamanaka
Masaru Hirasawa
Keiichi Tsuchiya
Original Assignee
Oji Paper Co
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 Oji Paper Co filed Critical Oji Paper Co
Publication of NO900259D0 publication Critical patent/NO900259D0/no
Publication of NO900259L publication Critical patent/NO900259L/no
Publication of NO176446B publication Critical patent/NO176446B/no
Publication of NO176446C publication Critical patent/NO176446C/no

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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/026—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of O2, e.g. air
    • 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
    • D21C7/00—Digesters
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
NO900259A 1989-06-01 1990-01-18 Apparat og fremgangsmåte for delignifisering av cellulosemasse NO176446C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13740389 1989-06-01

Publications (4)

Publication Number Publication Date
NO900259D0 NO900259D0 (no) 1990-01-18
NO900259L NO900259L (no) 1990-12-03
NO176446B NO176446B (no) 1994-12-27
NO176446C true NO176446C (no) 1995-04-05

Family

ID=15197830

Family Applications (1)

Application Number Title Priority Date Filing Date
NO900259A NO176446C (no) 1989-06-01 1990-01-18 Apparat og fremgangsmåte for delignifisering av cellulosemasse

Country Status (7)

Country Link
US (1) US5034095A (fr)
JP (1) JPH0816315B2 (fr)
BR (1) BR9000983A (fr)
CA (1) CA2007986C (fr)
FI (1) FI94969C (fr)
NO (1) NO176446C (fr)
SE (1) SE469634B (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411634A (en) * 1991-04-30 1995-05-02 Kamyr, Inc. Medium consistency ozone bleaching
ZA924351B (en) * 1991-06-27 1993-03-31 Ahlstroem Oy Ozone bleaching process
ZA93224B (en) * 1992-01-22 1993-08-18 Olin Corp Gas phase delignification of lignocellulosic material.
US5372679A (en) * 1992-06-08 1994-12-13 Air Products And Chemicals, Inc. Reactor system for treating cellulosic pulp at a constant upward flow velocity
US6340409B1 (en) * 1993-04-29 2002-01-22 Lewis Donald Shackford Method for multistage bleaching using gaseous reagent in the first stage with controlled gas release
US5460696A (en) * 1993-08-12 1995-10-24 The Boc Group, Inc. Oxygen delignification method incorporating wood pulp mixing apparatus
ZA947310B (en) * 1993-09-22 1995-05-10 Ingersoll Rand Co Method of and apparatus for oxygen delignifiation of medium consistency pulp slurry
US5500084A (en) * 1994-09-21 1996-03-19 Hoffman Environmental Systems, Inc. Method and apparatus for pulping cellulosic material using a vessel with an impergnation zone and an attrition zone
FI105701B (fi) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Menetelmä ja laitteisto massan käsittelemiseksi
US6319357B1 (en) 1995-10-23 2001-11-20 Valmet Fibertech Aktiebolag Method for two-stage oxygen bleaching and delignification of chemical pulp
SE505141C2 (sv) * 1995-10-23 1997-06-30 Sunds Defibrator Ind Ab Syrgasdelignifiering av massa i två steg med hög satsning av alkali och syrgas och temperatur under 90 C i första steget
CN1203643A (zh) * 1995-12-07 1998-12-30 贝洛特工艺技术公司 中等稠度纸浆的氧化去木质作用
US5755928A (en) * 1995-12-07 1998-05-26 Iogen Corporation Method for automated monitoring of pulp retention time using an iodide salt as a tracer
WO1997020983A1 (fr) * 1995-12-07 1997-06-12 Beloit Technologies, Inc. Delignification par l'oxygene d'une pate a papier de consistance moyenne
DE19615226A1 (de) * 1996-04-18 1997-10-23 Voith Sulzer Papiermasch Gmbh Trockenpartie
SE510740C2 (sv) * 1996-11-26 1999-06-21 Sunds Defibrator Ind Ab Styrning av syrgasdelignifiering
DE19821311C1 (de) * 1998-05-13 1999-10-07 Voith Sulzer Papiertech Patent Verfahren zur Bleiche von Papierfaserstoff
CA2452145A1 (fr) * 2003-06-03 2004-12-03 David Tarasenko Methode de production de pate et de lignine
DE102005033347A1 (de) * 2005-07-16 2007-01-18 Henkel Kgaa Mittel, enthaltend mindestens ein Alkalimetallhalogenid als Tracer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353561A (en) * 1963-11-20 1967-11-21 Thiokol Chemical Corp Pass tube for gamma ray densitometers
US3398576A (en) * 1965-03-15 1968-08-27 Robert E. Cleary Flow measuring device
US3881985A (en) * 1971-11-08 1975-05-06 Improved Machinery Inc Continuous digester with strainer valve cycling
DE7541252U (de) * 1975-12-24 1976-04-29 Paul Gillet Gmbh, 6732 Edenkoben Vorrichtung zum reinigen der abgase von brennkraftmaschinen
US4548625A (en) * 1984-07-11 1985-10-22 Toyota Jidosha Kabushiki Kaisha Exhaust gas cleaning device for diesel engines

Also Published As

Publication number Publication date
NO900259L (no) 1990-12-03
SE9000162D0 (sv) 1990-01-17
SE9000162L (sv) 1990-12-02
FI94969B (fi) 1995-08-15
CA2007986A1 (fr) 1990-12-01
CA2007986C (fr) 1999-08-10
US5034095A (en) 1991-07-23
JPH0816315B2 (ja) 1996-02-21
JPH0390691A (ja) 1991-04-16
FI900623A0 (fi) 1990-02-08
NO900259D0 (no) 1990-01-18
SE469634B (sv) 1993-08-09
NO176446B (no) 1994-12-27
FI94969C (fi) 1995-11-27
BR9000983A (pt) 1991-02-19

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Legal Events

Date Code Title Description
MK1K Patent expired