FI69494C - Foerfarande foer reglering av tillfoerseln av reaktionskemikalier vid delignifiering av cellulosamaterial - Google Patents

Foerfarande foer reglering av tillfoerseln av reaktionskemikalier vid delignifiering av cellulosamaterial Download PDF

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Publication number
FI69494C
FI69494C FI781272A FI781272A FI69494C FI 69494 C FI69494 C FI 69494C FI 781272 A FI781272 A FI 781272A FI 781272 A FI781272 A FI 781272A FI 69494 C FI69494 C FI 69494C
Authority
FI
Finland
Prior art keywords
reaction
pulp
chlorine
lignin
chemicals
Prior art date
Application number
FI781272A
Other languages
English (en)
Finnish (fi)
Other versions
FI69494B (fi
FI781272A (fi
Inventor
John Rickard Bergstroem
Sten Lage Haeggstroem
Original Assignee
Mo Och Domsjoe 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 Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Publication of FI781272A publication Critical patent/FI781272A/fi
Publication of FI69494B publication Critical patent/FI69494B/fi
Application granted granted Critical
Publication of FI69494C publication Critical patent/FI69494C/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/09—Uses for paper making sludge
    • Y10S162/10—Computer control of paper making variables

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Treatment Of Sludge (AREA)
FI781272A 1977-05-11 1978-04-24 Foerfarande foer reglering av tillfoerseln av reaktionskemikalier vid delignifiering av cellulosamaterial FI69494C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7705513A SE415580C (sv) 1977-05-11 1977-05-11 Forfarande for reglering av tillforseln av reaktionskemikalier vid delignifiering av cellulosamaterial
SE7705513 1977-05-11

Publications (3)

Publication Number Publication Date
FI781272A FI781272A (fi) 1978-11-12
FI69494B FI69494B (fi) 1985-10-31
FI69494C true FI69494C (fi) 1986-02-10

Family

ID=20331289

Family Applications (1)

Application Number Title Priority Date Filing Date
FI781272A FI69494C (fi) 1977-05-11 1978-04-24 Foerfarande foer reglering av tillfoerseln av reaktionskemikalier vid delignifiering av cellulosamaterial

Country Status (9)

Country Link
US (1) US4348256A (fr)
JP (1) JPS53139806A (fr)
BR (1) BR7802938A (fr)
CA (1) CA1099058A (fr)
DE (1) DE2819860C2 (fr)
FI (1) FI69494C (fr)
FR (1) FR2390542A1 (fr)
NO (1) NO151046C (fr)
SE (1) SE415580C (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE421019B (sv) * 1980-08-26 1981-11-16 Kamyr Ab Forfarande for kemikaliereglering vid behandling av en substans, speciellt massa, med gas
JPS60155025A (ja) * 1984-01-25 1985-08-14 Nissan Motor Co Ltd シヨツクアブソ−バ
US5032976A (en) * 1989-06-13 1991-07-16 Elsag International B.V. System for modeling and control for delignification of pulping
US5032977A (en) * 1989-06-13 1991-07-16 Elsag International B.V. System for modeling and control for delignification of pulping
US5301102A (en) * 1991-10-07 1994-04-05 Westvaco Corporation Multivariable control of a Kamyr digester
US5403441A (en) * 1992-11-13 1995-04-04 Union Camp Patent Holding, Inc. Method for controlling an ozone bleaching process
US5736004A (en) * 1995-03-03 1998-04-07 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
SE514543C2 (sv) * 1995-03-08 2001-03-12 Kvaerner Pulping Tech Apparat för inblandning av ett första fluidum i ett andra fluidum
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
DE19920338A1 (de) * 1999-05-03 2000-11-16 Voith Sulzer Papiertech Patent Verfahren zur Erhöhung des Weißgrades von Papierfaserstoff
US9551076B2 (en) 2011-05-31 2017-01-24 Clean Chemistry, Inc. Electrochemical reactor and process
AU2013312249B2 (en) 2012-09-07 2018-03-15 Clean Chemistry, Inc. Systems and methods for generation of reactive oxygen species and applications thereof
CA2960104C (fr) 2014-09-04 2023-05-02 Clean Chemistry, Inc. Procede de traitement de l'eau au moyen d'une solution oxydante de peracetate
CA2981034C (fr) 2015-03-26 2024-06-25 Clean Chemistry, Inc. Systemes et procedes de reduction d'une population bacterienne dans de l'eau a teneur elevee en sulfure d'hydrogene
US10400392B2 (en) * 2015-10-05 2019-09-03 Valmet Automation Oy Measurement apparatus and method
US10883224B2 (en) 2015-12-07 2021-01-05 Clean Chemistry, Inc. Methods of pulp fiber treatment
WO2017100284A1 (fr) 2015-12-07 2017-06-15 Clean Chemistry, Inc. Procédés de lutte microbienne
US11136714B2 (en) 2016-07-25 2021-10-05 Clean Chemistry, Inc. Methods of optical brightening agent removal
FR3067275B1 (fr) 2017-06-07 2022-08-12 Timothee Boitouzet Procede de delignification partielle par voie supercritique ou subcritique et de remplissage d'un materiau ligno-cellulosique
US11311012B1 (en) 2017-09-07 2022-04-26 Clean Chemistry, Inc. Bacterial control in fermentation systems
US11001864B1 (en) 2017-09-07 2021-05-11 Clean Chemistry, Inc. Bacterial control in fermentation systems
FR3077895B1 (fr) 2018-02-09 2020-02-28 Sas Woodoo Dispositif de detection tactile avec interface tactile en materiau composite

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009131A (fr) * 1900-01-01
US2466290A (en) * 1944-03-15 1949-04-05 Paper Chemistry Inst Method of digesting pulp by the alkaline process
US3562384A (en) * 1960-11-08 1971-02-09 Miles Lab Immunological indicator and test system
US3486971A (en) * 1967-11-03 1969-12-30 Systematix Controls Inc Control of chlorine dioxide bleaching
US3679543A (en) * 1970-08-18 1972-07-25 Calgon Corp Controlling the cooking process in pulp digestion by differential conductivity measurements
USB300004I5 (fr) 1970-10-02 1975-01-28 Westinghouse Electric Corp
FI47786C (fi) * 1972-02-28 1974-03-11 Neste Oy Menetelmä selluun kohdistuvan jatkuvan valkaisuprosessi automaattiseks i säätämiseksi.
SE399966B (sv) * 1973-10-17 1978-03-06 Mo Och Domsjoe Ab Sett att reglera mengden kemiska emnen i inom cellulosaindustrin och beslektade industrier forekommande vetskor

Also Published As

Publication number Publication date
DE2819860A1 (de) 1978-11-16
CA1099058A (fr) 1981-04-14
SE415580C (sv) 1984-10-15
SE7705513L (sv) 1978-11-12
FR2390542A1 (fr) 1978-12-08
BR7802938A (pt) 1979-01-23
NO151046B (no) 1984-10-22
DE2819860C2 (de) 1981-10-08
NO151046C (no) 1985-01-30
NO781646L (no) 1978-11-14
JPS53139806A (en) 1978-12-06
FR2390542B1 (fr) 1982-08-06
FI69494B (fi) 1985-10-31
FI781272A (fi) 1978-11-12
US4348256A (en) 1982-09-07
SE415580B (sv) 1980-10-13
JPS5730439B2 (fr) 1982-06-29

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Owner name: MO OCH DOMSJOE AB