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FI50745C - Menetelmä kahden kemikaalin annostuksen automaattiseksi säätämiseksi. - Google Patents

Menetelmä kahden kemikaalin annostuksen automaattiseksi säätämiseksi.

Info

Publication number
FI50745C
FI50745C FI741828A FI182874A FI50745C FI 50745 C FI50745 C FI 50745C FI 741828 A FI741828 A FI 741828A FI 182874 A FI182874 A FI 182874A FI 50745 C FI50745 C FI 50745C
Authority
FI
Finland
Prior art keywords
chemicals
dosage
procedure
automatic control
automatic
Prior art date
Application number
FI741828A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI50745B (xx
FI182874A (xx
Inventor
Jaakko Soininen
Pentti Hyvaeri
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
Priority to FI741828A priority Critical patent/FI50745C/fi
Priority to CA229,324A priority patent/CA1057906A/en
Priority to SE7506844A priority patent/SE7506844L/xx
Publication of FI182874A publication Critical patent/FI182874A/fi
Application granted granted Critical
Publication of FI50745B publication Critical patent/FI50745B/fi
Publication of FI50745C publication Critical patent/FI50745C/fi

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)
FI741828A 1974-06-14 1974-06-14 Menetelmä kahden kemikaalin annostuksen automaattiseksi säätämiseksi. FI50745C (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI741828A FI50745C (fi) 1974-06-14 1974-06-14 Menetelmä kahden kemikaalin annostuksen automaattiseksi säätämiseksi.
CA229,324A CA1057906A (en) 1974-06-14 1975-06-13 Method for automatic control of the dosageing of two chemicals
SE7506844A SE7506844L (sv) 1974-06-14 1975-06-13 Forfarande for automatisk reglering av doseringen av tva kemikalier

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 (3)

Publication Number Publication Date
FI182874A FI182874A (xx) 1975-12-15
FI50745B FI50745B (xx) 1976-03-01
FI50745C true FI50745C (fi) 1976-06-10

Family

ID=8506257

Family Applications (1)

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

Country Status (3)

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

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
FI50745B (xx) 1976-03-01
FI182874A (xx) 1975-12-15
CA1057906A (en) 1979-07-10
SE7506844L (sv) 1975-12-15

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