SE7506844L - Forfarande for automatisk reglering av doseringen av tva kemikalier - Google Patents

Forfarande for automatisk reglering av doseringen av tva kemikalier

Info

Publication number
SE7506844L
SE7506844L SE7506844A SE7506844A SE7506844L SE 7506844 L SE7506844 L SE 7506844L SE 7506844 A SE7506844 A SE 7506844A SE 7506844 A SE7506844 A SE 7506844A SE 7506844 L SE7506844 L SE 7506844L
Authority
SE
Sweden
Prior art keywords
pulp
chlorine
pretreatment
hardness
chlorination
Prior art date
Application number
SE7506844A
Other languages
English (en)
Swedish (sv)
Inventor
J Soininen
P Hyveri
Original Assignee
Kaukas Ab Oy
Nokia Oy 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 Kaukas Ab Oy, Nokia Oy Ab filed Critical Kaukas Ab Oy
Publication of SE7506844L publication Critical patent/SE7506844L/xx

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
    • D21C9/1052—Controlling the process
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE7506844A 1974-06-14 1975-06-13 Forfarande for automatisk reglering av doseringen av tva kemikalier SE7506844L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI741828A FI50745C (fi) 1974-06-14 1974-06-14 Menetelmä kahden kemikaalin annostuksen automaattiseksi säätämiseksi.

Publications (1)

Publication Number Publication Date
SE7506844L true SE7506844L (sv) 1975-12-15

Family

ID=8506257

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7506844A SE7506844L (sv) 1974-06-14 1975-06-13 Forfarande for automatisk reglering av doseringen av tva kemikalier

Country Status (3)

Country Link
CA (1) CA1057906A (enrdf_load_html_response)
FI (1) FI50745C (enrdf_load_html_response)
SE (1) SE7506844L (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510740C2 (sv) * 1996-11-26 1999-06-21 Sunds Defibrator Ind Ab Styrning av syrgasdelignifiering
US6153050A (en) * 1998-03-24 2000-11-28 Noranda Forest Inc. Method and system for controlling the addition of bleaching reagents to obtain a substantially constant percentage of pulp delignification across the first bleaching/delignifying stage

Also Published As

Publication number Publication date
FI182874A7 (enrdf_load_html_response) 1975-12-15
FI50745B (enrdf_load_html_response) 1976-03-01
FI50745C (fi) 1976-06-10
CA1057906A (en) 1979-07-10

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