ATE188521T1 - Vorrichtung und verfahren zum bleichen von zellstoff - Google Patents

Vorrichtung und verfahren zum bleichen von zellstoff

Info

Publication number
ATE188521T1
ATE188521T1 AT92914663T AT92914663T ATE188521T1 AT E188521 T1 ATE188521 T1 AT E188521T1 AT 92914663 T AT92914663 T AT 92914663T AT 92914663 T AT92914663 T AT 92914663T AT E188521 T1 ATE188521 T1 AT E188521T1
Authority
AT
Austria
Prior art keywords
pulp
ozone
bleaching
reactor
dispersion
Prior art date
Application number
AT92914663T
Other languages
English (en)
Inventor
David C White
Michael Pikulin
Thomas P Gandek
William H Friend
Original Assignee
Union Camp Patent Holding
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 Union Camp Patent Holding filed Critical Union Camp Patent Holding
Application granted granted Critical
Publication of ATE188521T1 publication Critical patent/ATE188521T1/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0724—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis directly mounted on the rotating axis
    • 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
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/071—Fixing of the stirrer to the shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1145—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and the rotating axis

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
AT92914663T 1992-01-15 1992-04-24 Vorrichtung und verfahren zum bleichen von zellstoff ATE188521T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/821,117 US5472572A (en) 1990-10-26 1992-01-15 Reactor for bleaching high consistency pulp with ozone
PCT/US1992/003389 WO1993014260A1 (en) 1992-01-15 1992-04-24 Pulp bleaching apparatus and method

Publications (1)

Publication Number Publication Date
ATE188521T1 true ATE188521T1 (de) 2000-01-15

Family

ID=25232567

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92914663T ATE188521T1 (de) 1992-01-15 1992-04-24 Vorrichtung und verfahren zum bleichen von zellstoff

Country Status (15)

Country Link
US (1) US5472572A (de)
EP (1) EP0627029B1 (de)
JP (1) JP3691845B2 (de)
AT (1) ATE188521T1 (de)
AU (1) AU661014B2 (de)
BR (1) BR9207052A (de)
CA (1) CA2128241C (de)
DE (1) DE69230539T2 (de)
DK (1) DK0627029T3 (de)
ES (1) ES2143989T3 (de)
FI (1) FI110195B (de)
NO (1) NO302765B1 (de)
RU (1) RU2117720C1 (de)
SE (1) SE9402489L (de)
WO (1) WO1993014260A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US20050173082A1 (en) * 1998-08-24 2005-08-11 Arbozon Oy Ltd. Bleaching of medium consistency pulp with ozone without high shear mixing
US20040200589A1 (en) * 2003-04-08 2004-10-14 Herring William J. Method of making pulp having high hemicellulose content
US20040200587A1 (en) * 2003-04-08 2004-10-14 Herring William J. Cellulose pulp having increased hemicellulose content
SE0400940L (sv) 2004-04-07 2005-08-16 Kvaerner Pulping Tech Förfarande och anordning för utspädning av avvattnad cellulosamassa
KR20110067992A (ko) * 2009-12-15 2011-06-22 삼성전자주식회사 내부발열을 이용한 바이오매스의 전처리 방법 및 전처리 장치

Family Cites Families (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642978A (en) * 1924-12-06 1927-09-20 Thorne Carl Busch Process for bleaching and like purposes
US1781712A (en) * 1925-02-05 1930-11-18 Pine Waste Products Inc Wood-pulp material
US1591070A (en) * 1925-02-27 1926-07-06 Robert B Wolf Bleaching apparatus
US1643566A (en) * 1925-10-16 1927-09-27 Thorne Carl Busch Process for bleaching and the like purposes
US1818913A (en) * 1928-04-12 1931-08-11 Chemipulp Process Inc Method and apparatus for the chemical treatment of pulp
US1957937A (en) * 1930-10-10 1934-05-08 Int Paper Co Process of bleaching fibrous cellulose material
US2013115A (en) * 1931-09-21 1935-09-03 Thorne Carl Busch Process and apparatus for the refining of pulp
US2431478A (en) * 1942-07-25 1947-11-25 Raymond P Hill Bleaching fibrous material
US2466633A (en) * 1948-05-26 1949-04-05 James M Daily Method of bleaching cellulosic pulp
US3318657A (en) * 1963-09-23 1967-05-09 Metal Hydrides Inc Method of bleaching cellulose fibres
FR1441787A (fr) * 1965-04-30 1966-06-10 Progil Procédé de blanchiment des pâtes à papier
US3703435A (en) * 1967-11-09 1972-11-21 Sunds Ab Method for finely disintegrating pulp,preferentially cellulose pulp,in connection with the bleaching thereof with gaseous bleaching agent
US3630828A (en) * 1968-05-13 1971-12-28 Pulp Paper Res Inst Bleaching of a low-density, substantially uncompacted, porous fluffed cellulosic pulp
OA03094A (fr) * 1968-07-11 1970-12-15 P P I South African Pulp And P Perfectionnements à la délignification et au blanchiment des pâtes de cellulose avec l'oxygène gazeux.
CA902859A (en) * 1969-11-26 1972-06-20 Pulp And Paper Research Institute Of Canada Chemical reaction between a solid and a gas
CA902861A (en) * 1969-11-27 1972-06-20 Pulp And Paper Research Institute Of Canada Bleaching of cellulosic pulp
CA970111A (en) * 1970-12-21 1975-07-01 Rudra P. Singh Preparation of wood pulp
CA966604A (en) * 1970-12-21 1975-04-29 Scott Paper Company Kraft pulp bleaching and recovery process
US4196043A (en) * 1970-12-21 1980-04-01 Scott Paper Company Kraft pulp bleaching and recovery process
US3785577A (en) * 1972-07-18 1974-01-15 Improved Machinery Inc Apparatus for the gaseous reaction of material
US3814664A (en) * 1972-09-11 1974-06-04 Improved Machinery Inc Gaseous reaction apparatus including a peripheral gas receiving chamber
US4105494A (en) * 1973-01-05 1978-08-08 Sunds Aktiebolag Process of gas-phase bleaching high consistency finely disintegrated pulp
US3832276A (en) * 1973-03-07 1974-08-27 Int Paper Co Delignification and bleaching of a cellulose pulp slurry with oxygen
US3964962A (en) * 1974-02-25 1976-06-22 Ingersoll-Rand Company Gaseous reaction apparatus and processes including a peripheral gas receiving chamber and a gas recirculation conduit
SE394466C (sv) * 1974-05-16 1986-06-23 Mannbro Systems Handelsbolag Sett vid kontinuerlig alkalisk delignifiering av lignocellulosamaterial i tva eller flera steg, varav det sista med syrgas
US4046621A (en) * 1974-12-17 1977-09-06 The Ontario Paper Company Limited Process for treating a slurry of cellulosic material
US4119486A (en) * 1975-08-14 1978-10-10 Westvaco Corporation Process for bleaching wood pulp with ozone in the presence of a cationic surfactant
NO137651C (no) * 1975-10-31 1978-03-29 Myrens Verksted As Fremgangsmaate og apparat til kontinuerlig behandling av findelt fibermateriale eller celluloseholdig masse med gass uten overtrykk.
US4080249A (en) * 1976-06-02 1978-03-21 International Paper Company Delignification and bleaching of a lignocellulosic pulp slurry with ozone
NL7607249A (nl) * 1976-06-30 1978-01-03 Ibm Nederland Mechanisme voor het uitvoeren van een omwen- teling.
JPS5331964A (en) * 1976-09-06 1978-03-25 Nippon Telegr & Teleph Corp <Ntt> Production of semiconductor substrates
FI67413C (fi) * 1977-04-27 1985-03-11 Myrens Verksted As Foerfarande foer behandling av finfoerdelad fiberhaltig eller cellulosahaltig massa samt anordning foer utfoerande av foerfarandet
JPS5430902A (en) * 1977-06-27 1979-03-07 Seisan Kaihatsu Kagaku Kenkyus Industrial multistage pulp bleaching method
US4216054A (en) * 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
NO142091C (no) * 1977-10-17 1980-06-25 Myrens Verksted As Fremgangsmaate ved ozonbehandling av raffinoermekanisk og termomekanisk masse.
NO144711C (no) * 1978-04-04 1981-10-21 Myrens Verksted As Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon
CA1112813A (en) * 1978-04-06 1981-11-24 Arthur W. Kempf Method for extracting ozone-treated fibrous materials
CA1132760A (en) * 1978-04-07 1982-10-05 Richard B. Phillips Chlorine free process for bleaching lignocellulosic pulp
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
CS210414B1 (en) * 1978-09-28 1982-01-29 Ladislav Zilka Shovel conveyer built in the continuous cylindrical boiling tank
US4229252A (en) * 1979-01-11 1980-10-21 Weyerhaeuser Company Additives for ozone bleaching
US4248662A (en) * 1979-01-22 1981-02-03 The Black Clawson Company Oxygen pulping with recycled liquor
US4298426A (en) * 1979-06-15 1981-11-03 Weyerhaeuser Company Method and apparatus for treating pulp with oxygen in a multi-stage bleaching sequence
US4363697A (en) * 1979-12-03 1982-12-14 The Black Clawson Company Method for medium consistency oxygen delignification of pulp
US4283251A (en) * 1980-01-24 1981-08-11 Scott Paper Company Ozone effluent bleaching
CA1154205A (en) * 1980-04-15 1983-09-27 Madhu P. Godsay Brightness improvement of ozone bleached pulps
US4444621A (en) * 1980-11-21 1984-04-24 Mo Och Domsjo Aktiebolag Process and apparatus for the deresination and brightness improvement of cellulose pulp
US4384920A (en) * 1981-04-06 1983-05-24 The Black Clawson Company Method and apparatus for oxygen delignification
ZA821923B (en) * 1981-04-06 1983-02-23 Black Clawson Co Method and apparatus for oxygen delignification
CA1181204A (en) * 1981-06-17 1985-01-22 Russell W. Hoag Method and system for reacting ozone with pulp
US4426256A (en) * 1982-03-09 1984-01-17 Myrens Verksted A/S Apparatus for treating fibrous material with a gas
US4468286A (en) * 1982-03-09 1984-08-28 Myrens Verksted A/S Method of gas treatment of fluffed pulp
EP0112377B1 (de) * 1982-06-24 1986-11-12 Scott Paper Company Ozonbleiche aus cellulosematerialien
ZA835925B (en) * 1982-09-30 1984-04-25 Black Clawson Co Method and apparatus for oxygen delignification
AU1730083A (en) * 1982-09-30 1984-04-05 Black Clawson Company, The Oxygen treatment of low connistancy pulp
GB2144458A (en) * 1983-06-25 1985-03-06 Berstorff Gmbh Masch Hermann Apparatus and method for producing wood pulp
US4619733A (en) * 1983-11-30 1986-10-28 Kooi Boon Lam Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor
US4640782A (en) * 1985-03-13 1987-02-03 Ozo-Tek, Inc. Method and apparatus for the generation and utilization of ozone and singlet oxygen
FR2585385B1 (fr) * 1985-07-26 1987-10-30 Lamort E & M Procede et appareillage de preparation et triage primaire de pate a papier
FR2609067B1 (fr) * 1986-12-31 1990-06-15 Beghin Say Sa Procede pour le traitement a l'ozone d'une pate cellulosique
AT388193B (de) * 1987-06-12 1989-05-10 Andritz Ag Maschf Mischer
FR2620744A1 (fr) * 1987-09-17 1989-03-24 Degremont Procede de traitement par l'ozone de materiaux ligno-cellulosiques, notamment de pates a papier et reacteur pour la mise en oeuvre de ce procede
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US4959124A (en) * 1989-05-05 1990-09-25 International Paper Company Method of bleaching kraft pulp in a DZED sequence
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
AT394737B (de) * 1989-07-03 1992-06-10 Andritz Ag Maschf Verfahren und vorrichtung zur behandlung, insbesondere waesche, von faserstoff-fluessigkeit- mischungen
AT395180B (de) * 1989-08-16 1992-10-12 Andritz Ag Maschf Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
ES2073027T3 (es) * 1990-05-17 1995-08-01 Union Camp Patent Holding Procedimiento medioambientalmente mejorado para blanquear materiales lignocelulosicos.
EP0492040A1 (de) * 1990-12-21 1992-07-01 Kamyr, Inc. Drehender Ozonreaktor für Zellstoff
JP2002517173A (ja) * 1991-01-03 2002-06-11 ユニオン キャンプ パテント ホウルディング インコーポレイテッド 塩素を使用しないリグノセルロースパルプの漂白法
NZ242792A (en) * 1991-05-24 1993-12-23 Union Camp Patent Holding Two-stage pulp bleaching reactor: pulp mixed with ozone in first stage.

Also Published As

Publication number Publication date
FI110195B (fi) 2002-12-13
NO302765B1 (no) 1998-04-20
EP0627029A1 (de) 1994-12-07
DK0627029T3 (da) 2000-06-13
EP0627029B1 (de) 2000-01-05
SE9402489L (sv) 1994-09-13
JPH07507103A (ja) 1995-08-03
BR9207052A (pt) 1995-12-05
US5472572A (en) 1995-12-05
WO1993014260A1 (en) 1993-07-22
SE9402489D0 (sv) 1994-07-15
NO942645D0 (no) 1994-07-14
FI943356A0 (fi) 1994-07-14
AU2265792A (en) 1993-08-03
FI943356A (fi) 1994-09-14
JP3691845B2 (ja) 2005-09-07
RU94037763A (ru) 1996-07-10
DE69230539D1 (de) 2000-02-10
CA2128241A1 (en) 1993-07-22
NO942645L (no) 1994-09-02
DE69230539T2 (de) 2000-08-03
ES2143989T3 (es) 2000-06-01
RU2117720C1 (ru) 1998-08-20
AU661014B2 (en) 1995-07-13
CA2128241C (en) 2000-09-05
EP0627029A4 (en) 1995-12-06

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Legal Events

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UEP Publication of translation of european patent specification