FI952999A - Pulp bleaching device and method - Google Patents

Pulp bleaching device and method Download PDF

Info

Publication number
FI952999A
FI952999A FI952999A FI952999A FI952999A FI 952999 A FI952999 A FI 952999A FI 952999 A FI952999 A FI 952999A FI 952999 A FI952999 A FI 952999A FI 952999 A FI952999 A FI 952999A
Authority
FI
Finland
Prior art keywords
pulp bleaching
bleaching device
pulp
bleaching
Prior art date
Application number
FI952999A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI952999A0 (en
Inventor
Oscar Luthi
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 FI952999A publication Critical patent/FI952999A/en
Publication of FI952999A0 publication Critical patent/FI952999A0/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
    • 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)
FI952999A 1992-12-18 1995-06-16 Pulp bleaching device and method FI952999A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US99332392A 1992-12-18 1992-12-18
PCT/US1993/012125 WO1994015016A1 (en) 1992-12-18 1993-12-10 Improved pulp bleaching apparatus and method

Publications (2)

Publication Number Publication Date
FI952999A true FI952999A (en) 1995-06-16
FI952999A0 FI952999A0 (en) 1995-06-16

Family

ID=25539384

Family Applications (1)

Application Number Title Priority Date Filing Date
FI952999A FI952999A0 (en) 1992-12-18 1995-06-16 Pulp bleaching device and method

Country Status (7)

Country Link
EP (1) EP0674729A4 (en)
JP (1) JPH08504899A (en)
BR (1) BR9307672A (en)
CA (1) CA2151812A1 (en)
FI (1) FI952999A0 (en)
NO (1) NO952335D0 (en)
WO (1) WO1994015016A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0802028A2 (en) * 2008-09-24 2010-07-20 Metso Paper Inc Apparatus for washing and / or dewatering pulp
US8828189B2 (en) 2012-01-30 2014-09-09 Andritz Inc. Washer press with multiple nips and multiple displacement wash zones
CN105178085A (en) * 2015-09-21 2015-12-23 潍坊恒联浆纸有限公司 Poplar pulp black liquor green extraction process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE318182B (en) * 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 (en) * 1983-12-02 1985-06-28 Sumitomo Electric Ind Ltd Continuous hot dipping method

Also Published As

Publication number Publication date
CA2151812A1 (en) 1994-07-07
EP0674729A4 (en) 1997-06-18
JPH08504899A (en) 1996-05-28
NO952335L (en) 1995-06-13
FI952999A0 (en) 1995-06-16
NO952335D0 (en) 1995-06-13
WO1994015016A1 (en) 1994-07-07
BR9307672A (en) 1999-09-08
EP0674729A1 (en) 1995-10-04

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Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: BELOIT TECHNOLOGIES, INC.