SE9300798L - Förfarande för vätskerening i massabruk - Google Patents

Förfarande för vätskerening i massabruk

Info

Publication number
SE9300798L
SE9300798L SE9300798A SE9300798A SE9300798L SE 9300798 L SE9300798 L SE 9300798L SE 9300798 A SE9300798 A SE 9300798A SE 9300798 A SE9300798 A SE 9300798A SE 9300798 L SE9300798 L SE 9300798L
Authority
SE
Sweden
Prior art keywords
liq
ppte
contg
sepd
flock
Prior art date
Application number
SE9300798A
Other languages
English (en)
Other versions
SE9300798D0 (sv
SE512617C2 (sv
Inventor
Lennart Igerud
Lennart Hagelqvist
Original Assignee
Eka Nobel Ab
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 Eka Nobel Ab filed Critical Eka Nobel Ab
Priority to SE9300798A priority Critical patent/SE512617C2/sv
Publication of SE9300798D0 publication Critical patent/SE9300798D0/sv
Publication of SE9300798L publication Critical patent/SE9300798L/sv
Publication of SE512617C2 publication Critical patent/SE512617C2/sv

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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
SE9300798A 1993-03-10 1993-03-10 Reducering av komplexbundna metalljoner i vätska erhållen vid massaframställning SE512617C2 (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9300798A SE512617C2 (sv) 1993-03-10 1993-03-10 Reducering av komplexbundna metalljoner i vätska erhållen vid massaframställning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9300798A SE512617C2 (sv) 1993-03-10 1993-03-10 Reducering av komplexbundna metalljoner i vätska erhållen vid massaframställning

Publications (3)

Publication Number Publication Date
SE9300798D0 SE9300798D0 (sv) 1993-03-10
SE9300798L true SE9300798L (sv) 1994-09-11
SE512617C2 SE512617C2 (sv) 2000-04-10

Family

ID=20389182

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9300798A SE512617C2 (sv) 1993-03-10 1993-03-10 Reducering av komplexbundna metalljoner i vätska erhållen vid massaframställning

Country Status (1)

Country Link
SE (1) SE512617C2 (sv)

Also Published As

Publication number Publication date
SE9300798D0 (sv) 1993-03-10
SE512617C2 (sv) 2000-04-10

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Legal Events

Date Code Title Description
NUG Patent has lapsed