CA2151812A1 - Appareil de blanchiment de la pulpe et methode connexe - Google Patents

Appareil de blanchiment de la pulpe et methode connexe

Info

Publication number
CA2151812A1
CA2151812A1 CA 2151812 CA2151812A CA2151812A1 CA 2151812 A1 CA2151812 A1 CA 2151812A1 CA 2151812 CA2151812 CA 2151812 CA 2151812 A CA2151812 A CA 2151812A CA 2151812 A1 CA2151812 A1 CA 2151812A1
Authority
CA
Canada
Prior art keywords
pulp
chamber
liquid
chemical solution
mat
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
CA 2151812
Other languages
English (en)
Inventor
Oscar Luthi
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
Individual
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 Individual filed Critical Individual
Publication of CA2151812A1 publication Critical patent/CA2151812A1/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
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA 2151812 1992-12-18 1993-12-10 Appareil de blanchiment de la pulpe et methode connexe Abandoned CA2151812A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US99332392A 1992-12-18 1992-12-18
US07/993,323 1992-12-18

Publications (1)

Publication Number Publication Date
CA2151812A1 true CA2151812A1 (fr) 1994-07-07

Family

ID=25539384

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2151812 Abandoned CA2151812A1 (fr) 1992-12-18 1993-12-10 Appareil de blanchiment de la pulpe et methode connexe

Country Status (7)

Country Link
EP (1) EP0674729A4 (fr)
JP (1) JPH08504899A (fr)
BR (1) BR9307672A (fr)
CA (1) CA2151812A1 (fr)
FI (1) FI952999A0 (fr)
NO (1) NO952335L (fr)
WO (1) WO1994015016A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0802028A2 (sv) * 2008-09-24 2010-07-20 Metso Paper Inc Apparat för tvättning och/eller avvattning av massa
US8828189B2 (en) 2012-01-30 2014-09-09 Andritz Inc. Washer press with multiple nips and multiple displacement wash zones
CN105178085A (zh) * 2015-09-21 2015-12-23 潍坊恒联浆纸有限公司 一种杨木浆黑液绿色提取工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE318182B (fr) * 1968-04-23 1969-12-01 Karlstad Mekaniska Ab
US3772144A (en) * 1971-04-14 1973-11-13 Improved Machinery Inc Apparatus and method for thickening and washing suspensions containing fibrous material
US4310384A (en) * 1979-01-11 1982-01-12 Weyerhaeuser Company Reducing chemical transfer between treatment stages
US4269656A (en) * 1980-04-02 1981-05-26 Ingersoll-Rand Company Wood pulp forming system and method of recovering spent chemicals
JPS60121262A (ja) * 1983-12-02 1985-06-28 Sumitomo Electric Ind Ltd 連続溶融めつき方法

Also Published As

Publication number Publication date
BR9307672A (pt) 1999-09-08
EP0674729A4 (fr) 1997-06-18
NO952335D0 (no) 1995-06-13
NO952335L (no) 1995-06-13
EP0674729A1 (fr) 1995-10-04
JPH08504899A (ja) 1996-05-28
FI952999A (fi) 1995-06-16
FI952999A0 (fi) 1995-06-16
WO1994015016A1 (fr) 1994-07-07

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead