SE9600923D0 - Procedure for treating pulp - Google Patents

Procedure for treating pulp

Info

Publication number
SE9600923D0
SE9600923D0 SE9600923A SE9600923A SE9600923D0 SE 9600923 D0 SE9600923 D0 SE 9600923D0 SE 9600923 A SE9600923 A SE 9600923A SE 9600923 A SE9600923 A SE 9600923A SE 9600923 D0 SE9600923 D0 SE 9600923D0
Authority
SE
Sweden
Prior art keywords
processing
reject
procedure
pulp
treating pulp
Prior art date
Application number
SE9600923A
Other languages
Swedish (sv)
Other versions
SE9600923L (en
SE519627C2 (en
Inventor
Antero Laine
Olavi Pikka
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Publication of SE9600923D0 publication Critical patent/SE9600923D0/en
Publication of SE9600923L publication Critical patent/SE9600923L/en
Publication of SE519627C2 publication Critical patent/SE519627C2/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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

The present invention relates to a method for the processing of pulp by acid delignification. The invention is particularly suited to chemical pulp processing in a process in which the screen room is ideally located with a view to reducing the reject quantity and reprocessing of the reject. The method according to the invention is characterised in that the coarse reject from the screen room 28 is led to the front of the main line acid stage 22 without processing it outside the main line. <IMAGE>
SE9600923A 1995-03-08 1996-03-08 Procedure for treating pulp where coarse reject is returned to a place in front of the main line oxygen stage SE519627C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI951069A FI104333B (en) 1995-03-08 1995-03-08 Process for treating pulp

Publications (3)

Publication Number Publication Date
SE9600923D0 true SE9600923D0 (en) 1996-03-08
SE9600923L SE9600923L (en) 1996-09-09
SE519627C2 SE519627C2 (en) 2003-03-18

Family

ID=8542998

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9600923A SE519627C2 (en) 1995-03-08 1996-03-08 Procedure for treating pulp where coarse reject is returned to a place in front of the main line oxygen stage

Country Status (2)

Country Link
FI (1) FI104333B (en)
SE (1) SE519627C2 (en)

Also Published As

Publication number Publication date
FI104333B1 (en) 1999-12-31
SE9600923L (en) 1996-09-09
FI104333B (en) 1999-12-31
SE519627C2 (en) 2003-03-18
FI951069A0 (en) 1995-03-08
FI951069A (en) 1996-09-09

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Legal Events

Date Code Title Description
NUG Patent has lapsed