CA2046717A1 - Methode de traitement de matieres fibreuses au moyen d'un reactif gazeux et appareil connexe - Google Patents

Methode de traitement de matieres fibreuses au moyen d'un reactif gazeux et appareil connexe

Info

Publication number
CA2046717A1
CA2046717A1 CA002046717A CA2046717A CA2046717A1 CA 2046717 A1 CA2046717 A1 CA 2046717A1 CA 002046717 A CA002046717 A CA 002046717A CA 2046717 A CA2046717 A CA 2046717A CA 2046717 A1 CA2046717 A1 CA 2046717A1
Authority
CA
Canada
Prior art keywords
fibrous material
gaseous reagent
pulp
mixing chamber
gas
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002046717A
Other languages
English (en)
Inventor
Lawrence A. Carlsmith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beloit Technologies Inc
Original Assignee
Ingersoll Rand 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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of CA2046717A1 publication Critical patent/CA2046717A1/fr
Abandoned legal-status Critical Current

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
    • D21C9/10—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
    • 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)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Inorganic Fibers (AREA)
CA002046717A 1991-02-06 1991-07-10 Methode de traitement de matieres fibreuses au moyen d'un reactif gazeux et appareil connexe Abandoned CA2046717A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65158691A 1991-02-06 1991-02-06
US651,586 1991-02-06

Publications (1)

Publication Number Publication Date
CA2046717A1 true CA2046717A1 (fr) 1992-08-07

Family

ID=24613432

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002046717A Abandoned CA2046717A1 (fr) 1991-02-06 1991-07-10 Methode de traitement de matieres fibreuses au moyen d'un reactif gazeux et appareil connexe

Country Status (12)

Country Link
JP (1) JPH0657672A (fr)
CN (1) CN1063915A (fr)
AT (1) ATA139491A (fr)
AU (1) AU646267B2 (fr)
BR (1) BR9103446A (fr)
CA (1) CA2046717A1 (fr)
DE (1) DE4203131A1 (fr)
ES (1) ES2050566B1 (fr)
FI (1) FI913382A (fr)
FR (1) FR2672314B1 (fr)
IT (1) IT1250690B (fr)
SE (1) SE9102209L (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5810973A (en) * 1993-09-21 1998-09-22 Beloit Technologies, Inc. Apparatus for producing small particles from high consistency wood pulp
US5942088A (en) * 1995-07-26 1999-08-24 Beloit Technologies, Inc. Apparatus for bleaching high consistency pulp with a gaseous bleaching reagent
US6077396A (en) * 1997-05-16 2000-06-20 Lariviere; Christopher J. Apparatus for fluffing and contacting high consistancy wood pulp with a gaseous bleaching reagent
US6210532B1 (en) 1994-08-11 2001-04-03 Lewis D. Shackford Means for conveying pulp having differential pressure control

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
NZ242792A (en) * 1991-05-24 1993-12-23 Union Camp Patent Holding Two-stage pulp bleaching reactor: pulp mixed with ozone in first stage.
EP0674730A4 (fr) * 1992-12-18 1996-04-10 Ingersoll Rand Co Procede et dispositif de melange de reactif de blanchiment et de pate a papier.
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
AT402077B (de) * 1995-03-10 1997-01-27 Andritz Patentverwaltung Verfahren und vorrichtung zur behandlung, insbesondere bleichen, von faserstoff
DE69602269T2 (de) * 1995-07-26 1999-09-16 Beloit Technologies, Inc. Verfahren und vorrichtung zum zellstoffbleichen mit einem gasförmigen bleichmittel
SE514416C2 (sv) * 1999-06-10 2001-02-19 Valmet Fibertech Ab Metod och system för gastät inmatning av massa till en reaktor för ozonblekning
DE10349120A1 (de) * 2003-10-22 2005-05-25 Voith Paper Patent Gmbh Maschine mit Zwangsfördereinrichtung zum Abführen von bei einem Vorhang-Auftragswerk abgegebenem Auftragsmedium in Betriebsunterbrechungsphasen
CN103439216B (zh) * 2013-07-22 2015-04-22 广东轻工职业技术学院 一种纸浆纤维悬浮液中气体含量测量装置
US11802373B2 (en) * 2017-12-20 2023-10-31 Unicharm Corporation Method for evaluating degree of cleanliness of recycled material, method for manufacturing recycled material, and method for manufacturing recycled pulp fiber
CN114921989B (zh) * 2022-06-08 2024-08-23 浙江临安金洲纸业有限公司 一种造纸的纸浆疏解装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041233A (en) * 1957-12-17 1962-06-26 Kamyr Ab Method of introducing high density pulp into a pressure vessel
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.
US4303470A (en) * 1979-06-15 1981-12-01 Weyerhaeuser Company Method and apparatus for mixing gases with a wood pulp slurry
US4363697A (en) * 1979-12-03 1982-12-14 The Black Clawson Company Method for medium consistency oxygen delignification of pulp
US4426256A (en) * 1982-03-09 1984-01-17 Myrens Verksted A/S Apparatus for treating fibrous material with a gas
CA1300322C (fr) * 1987-06-08 1992-05-12 Derek Hornsey Methode de blanchiment ou de delignification de la pate de cellulose par de l'oxygene
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
EP0492040A1 (fr) * 1990-12-21 1992-07-01 Kamyr, Inc. Réacteur rotatif à ozone pour pâte à papier
EP0492039A1 (fr) * 1990-12-27 1992-07-01 Kamyr, Inc. Réacteur pneumatique pour le blanchiment à l'ozone de pâte à papier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5810973A (en) * 1993-09-21 1998-09-22 Beloit Technologies, Inc. Apparatus for producing small particles from high consistency wood pulp
US6210532B1 (en) 1994-08-11 2001-04-03 Lewis D. Shackford Means for conveying pulp having differential pressure control
US5942088A (en) * 1995-07-26 1999-08-24 Beloit Technologies, Inc. Apparatus for bleaching high consistency pulp with a gaseous bleaching reagent
US6077396A (en) * 1997-05-16 2000-06-20 Lariviere; Christopher J. Apparatus for fluffing and contacting high consistancy wood pulp with a gaseous bleaching reagent

Also Published As

Publication number Publication date
JPH0657672A (ja) 1994-03-01
BR9103446A (pt) 1992-09-29
DE4203131A1 (de) 1992-08-13
AU8044191A (en) 1992-08-13
SE9102209L (sv) 1992-08-07
ATA139491A (de) 1995-06-15
SE9102209D0 (sv) 1991-07-19
FI913382A (fi) 1992-08-07
ITMI912023A0 (it) 1991-07-22
IT1250690B (it) 1995-04-21
ITMI912023A1 (it) 1993-01-22
FR2672314A1 (fr) 1992-08-07
AU646267B2 (en) 1994-02-17
ES2050566B1 (es) 1994-12-01
CN1063915A (zh) 1992-08-26
FR2672314B1 (fr) 1994-01-14
FI913382A0 (fi) 1991-07-12
ES2050566A1 (es) 1994-05-16

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued