ZA915143B - Tumbling ozone reactor for paper pulp - Google Patents

Tumbling ozone reactor for paper pulp

Info

Publication number
ZA915143B
ZA915143B ZA915143A ZA915143A ZA915143B ZA 915143 B ZA915143 B ZA 915143B ZA 915143 A ZA915143 A ZA 915143A ZA 915143 A ZA915143 A ZA 915143A ZA 915143 B ZA915143 B ZA 915143B
Authority
ZA
South Africa
Prior art keywords
tumbling
paper pulp
ozone reactor
ozone
reactor
Prior art date
Application number
ZA915143A
Inventor
Brian F Greenwood
F Greenwood Brian
Edwin D Funk
D Funk Edwin
Jian Jiang
Jiang Jian
Thomas R Delcourt
R Delcourt Thomas
Stephen J Dunn
J Dunn Stephen
Joseph R Phillips
R Phillips Joseph
Original Assignee
Kamy 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 Kamy Inc filed Critical Kamy Inc
Publication of ZA915143B publication Critical patent/ZA915143B/en

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
    • 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
    • B01F27/1143—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections screw-shaped, e.g. worms
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
ZA915143A 1990-12-21 1991-07-03 Tumbling ozone reactor for paper pulp ZA915143B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62972890A 1990-12-21 1990-12-21

Publications (1)

Publication Number Publication Date
ZA915143B true ZA915143B (en) 1992-10-28

Family

ID=24524235

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA915143A ZA915143B (en) 1990-12-21 1991-07-03 Tumbling ozone reactor for paper pulp

Country Status (8)

Country Link
EP (1) EP0492040A1 (en)
JP (1) JPH04245990A (en)
AU (1) AU7916491A (en)
BR (1) BR9104774A (en)
CA (1) CA2044898A1 (en)
FI (1) FI915845A (en)
NO (1) NO914100L (en)
ZA (1) ZA915143B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, 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
CA2046717A1 (en) * 1991-02-06 1992-08-07 Beloit Technologies, Inc. Method and apparatus for treating fibrous materials with a gaseous reagent
US6126781A (en) * 1991-08-01 2000-10-03 Union Camp Patent Holding, Inc. Process for conditioning ozone gas recycle stream in ozone pulp bleaching
FI925558A (en) * 1992-04-22 1993-10-23 Ahlstroem Oy FOERFARANDE OCH ANORDNING FOER BLEKNING AV MASSA
JPH08502327A (en) * 1992-10-01 1996-03-12 ユニオン キャムプ パテント ホールディング インコーポレーテッド Improved bleaching of high consistency lignocellulosic pulp
EP0674731A4 (en) * 1992-12-18 1997-06-18 Ingersoll Rand Co Method and apparatus for regulating wood pulp bleaching.
US5810973A (en) * 1993-09-21 1998-09-22 Beloit Technologies, Inc. Apparatus for producing small particles from high consistency wood pulp
WO1996002697A1 (en) * 1994-07-14 1996-02-01 Union Camp Patent Holding, Inc. Improved bleaching of high consistency lignocellulosic pulp
CA2197190A1 (en) * 1994-08-11 1996-02-22 Lewis D. Shackford Means for gas-sealingly conveying shredded pulp
ATE179469T1 (en) * 1995-07-26 1999-05-15 Beloit Technologies Inc METHOD AND DEVICE FOR BLEACHING PULP USING A GASEOUS BLEACHING AGENT
US5944952A (en) * 1995-07-26 1999-08-31 Beloit Technologies, Inc. Method 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
SE514416C2 (en) * 1999-06-10 2001-02-19 Valmet Fibertech Ab Method and system for gas-tight feed of pulp to an ozone bleaching reactor
US6994831B1 (en) * 2002-10-23 2006-02-07 The United States Of America As Represented By The United States Department Of Energy Oxidative tritium decontamination system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI67413C (en) * 1977-04-27 1985-03-11 Myrens Verksted As FOERFARANDE FOER BEHANDLING AV FINFOERDELAD FIBERHALTIG ELLER CELLULOSAHALTIG MASS SAMT ANORDNING FOER UTFOERANDE AV FOERFARANDET
FR2620744A1 (en) * 1987-09-17 1989-03-24 Degremont PROCESS FOR THE OZONE TREATMENT OF LIGNO-CELLULOSIC MATERIALS, IN PARTICULAR PAPER PULP AND REACTOR FOR THE IMPLEMENTATION OF SAID METHOD
AT395180B (en) * 1989-08-16 1992-10-12 Andritz Ag Maschf METHOD FOR CRUSHING MATERIALS AND SYSTEM FOR IMPLEMENTING IT

Also Published As

Publication number Publication date
CA2044898A1 (en) 1992-06-22
AU7916491A (en) 1992-06-25
EP0492040A1 (en) 1992-07-01
BR9104774A (en) 1992-08-18
NO914100L (en) 1992-06-22
NO914100D0 (en) 1991-10-18
FI915845A (en) 1992-06-22
JPH04245990A (en) 1992-09-02
FI915845A0 (en) 1991-12-12

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