FI891662A - FOERFARANDE FOER BEHANDLING AV FIBERMASSA MED KEMIKALIELOESNING. - Google Patents

FOERFARANDE FOER BEHANDLING AV FIBERMASSA MED KEMIKALIELOESNING. Download PDF

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Publication number
FI891662A
FI891662A FI891662A FI891662A FI891662A FI 891662 A FI891662 A FI 891662A FI 891662 A FI891662 A FI 891662A FI 891662 A FI891662 A FI 891662A FI 891662 A FI891662 A FI 891662A
Authority
FI
Finland
Prior art keywords
treatment
bed
active chemicals
solution
amount
Prior art date
Application number
FI891662A
Other languages
Finnish (fi)
Other versions
FI891662A0 (en
FI85513B (en
FI85513C (en
Inventor
Haokan Oestman
Original Assignee
Salomans Oy
Hackman Prosessi 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 Salomans Oy, Hackman Prosessi Oy Ab filed Critical Salomans Oy
Publication of FI891662A0 publication Critical patent/FI891662A0/en
Priority to FI891662A priority Critical patent/FI85513C/en
Priority to EP90905528A priority patent/EP0466752B1/en
Priority to AU54201/90A priority patent/AU647020B2/en
Priority to ES90905528T priority patent/ES2091240T3/en
Priority to AT90905528T priority patent/ATE140282T1/en
Priority to PCT/FI1990/000095 priority patent/WO1990012146A1/en
Priority to JP2505791A priority patent/JPH05500835A/en
Priority to NZ233237A priority patent/NZ233237A/en
Priority to CA002049951A priority patent/CA2049951A1/en
Priority to BR909007276A priority patent/BR9007276A/en
Priority to DE69027770T priority patent/DE69027770T2/en
Priority to ZA902703A priority patent/ZA902703B/en
Publication of FI891662A publication Critical patent/FI891662A/en
Priority to NO913904A priority patent/NO176485C/en
Publication of FI85513B publication Critical patent/FI85513B/en
Application granted granted Critical
Publication of FI85513C publication Critical patent/FI85513C/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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1031—Pulse, dynamic, displacement processes
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028—Effluents derived from the washing or bleaching plants
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Communication Cables (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The process relates to continuous treatment of a fiber pulp with a chemical solution by forming on a filter surface a bed of a fiber material suspension and by feeding it through one or several chemical treatment steps in which the chemical solution is displaced through the bed. According to the method, there are used in each treatment step two different treatment liquids which are successively displaced through the bed. The first treatment solution is a chemical solution which contains a greater amount of active chemicals than is consumed in the reactions occurring in the pulp bed, preferably approx. twice the amount. The second treatment liquid is a solution which does not contain active chemicals in an amount significant in terms of the reaction. Its purpose is not only to displace that portion of the first treatment liquid from which the active chemicals have been spent but also that portion which still contains active chemicals upon leaving as a filtrate. Of the filtrate of the treatment step, that fraction is recovered which has the highest concentration of active chemicals and contains most of the active chemicals leaving the bed and is in its amount only so large that, when reinforced with a fresh chemical solution, it can be used in its entirety as the first treatment solution. The total liquid volume of the treatment liquids is substantially greater than the liquid volume present in the bed upon its leaving the treatment step - preferably 2- to 3-fold.
FI891662A 1989-04-07 1989-04-07 FOERFARANDE FOER BEHANDLING AV FIBERMASSA MED KEMIKALIELOESNING. FI85513C (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
FI891662A FI85513C (en) 1989-04-07 1989-04-07 FOERFARANDE FOER BEHANDLING AV FIBERMASSA MED KEMIKALIELOESNING.
JP2505791A JPH05500835A (en) 1989-04-07 1990-04-06 How to treat fiber pulp with chemical solutions
CA002049951A CA2049951A1 (en) 1989-04-07 1990-04-06 Process for treating a fiber pulp with a chemical solution
ES90905528T ES2091240T3 (en) 1989-04-07 1990-04-06 PROCESS TO WHITEN A FIBER PASTE WITH A CHEMICAL SOLUTION.
AT90905528T ATE140282T1 (en) 1989-04-07 1990-04-06 METHOD FOR BLEACHING A FIBER PULP USING A CHEMICAL SOLUTION
PCT/FI1990/000095 WO1990012146A1 (en) 1989-04-07 1990-04-06 A process for treating a fiber pulp with a chemical solution
EP90905528A EP0466752B1 (en) 1989-04-07 1990-04-06 A process for bleaching a fiber pulp with a chemical solution
NZ233237A NZ233237A (en) 1989-04-07 1990-04-06 Process for treating a fiber pulp with a chemical solution
AU54201/90A AU647020B2 (en) 1989-04-07 1990-04-06 A process for treating a fiber pulp with a chemical solution
BR909007276A BR9007276A (en) 1989-04-07 1990-04-06 PROCESS FOR CONTINUOUS TREATMENT OF A FIBER PULP
DE69027770T DE69027770T2 (en) 1989-04-07 1990-04-06 METHOD FOR BLEACHING A FIBER PULP WITH A CHEMICAL SOLUTION
ZA902703A ZA902703B (en) 1989-04-07 1990-04-09 A process for treating a fibre pulp with a chemical solution
NO913904A NO176485C (en) 1989-04-07 1991-10-04 Method of treating fiber pulp with a chemical solution

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI891662 1989-04-07
FI891662A FI85513C (en) 1989-04-07 1989-04-07 FOERFARANDE FOER BEHANDLING AV FIBERMASSA MED KEMIKALIELOESNING.

Publications (4)

Publication Number Publication Date
FI891662A0 FI891662A0 (en) 1989-04-07
FI891662A true FI891662A (en) 1990-10-08
FI85513B FI85513B (en) 1992-01-15
FI85513C FI85513C (en) 1992-04-27

Family

ID=8528196

Family Applications (1)

Application Number Title Priority Date Filing Date
FI891662A FI85513C (en) 1989-04-07 1989-04-07 FOERFARANDE FOER BEHANDLING AV FIBERMASSA MED KEMIKALIELOESNING.

Country Status (13)

Country Link
EP (1) EP0466752B1 (en)
JP (1) JPH05500835A (en)
AT (1) ATE140282T1 (en)
AU (1) AU647020B2 (en)
BR (1) BR9007276A (en)
CA (1) CA2049951A1 (en)
DE (1) DE69027770T2 (en)
ES (1) ES2091240T3 (en)
FI (1) FI85513C (en)
NO (1) NO176485C (en)
NZ (1) NZ233237A (en)
WO (1) WO1990012146A1 (en)
ZA (1) ZA902703B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6423183B1 (en) 1997-12-24 2002-07-23 Kimberly-Clark Worldwide, Inc. Paper products and a method for applying a dye to cellulosic fibers
US6749721B2 (en) 2000-12-22 2004-06-15 Kimberly-Clark Worldwide, Inc. Process for incorporating poorly substantive paper modifying agents into a paper sheet via wet end addition
US7749356B2 (en) 2001-03-07 2010-07-06 Kimberly-Clark Worldwide, Inc. Method for using water insoluble chemical additives with pulp and products made by said method
US6582560B2 (en) 2001-03-07 2003-06-24 Kimberly-Clark Worldwide, Inc. Method for using water insoluble chemical additives with pulp and products made by said method
US7670459B2 (en) 2004-12-29 2010-03-02 Kimberly-Clark Worldwide, Inc. Soft and durable tissue products containing a softening agent

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA783483A (en) * 1964-08-13 1968-04-23 Electric Reduction Company Of Canada Processes for bleaching cellulosic pulps
NO141172B (en) * 1970-06-25 Keskuslaboratorio-Centrallaboratorium Ab, Oy, PROCEDURE FOR DYNAMIC FLEACHING OF FIBER PULP
FI67894C (en) * 1982-05-21 1985-06-10 Rauma Repola Oy FOERFARANDE OCH ANORDNING FOER BLEKNING AV FIBERMASSA
FI86895C (en) * 1990-01-11 1997-01-15 Poeyry Jaakko & Co Oy Method for countercurrent washing and bleaching of cellulose boiling pulp

Also Published As

Publication number Publication date
EP0466752B1 (en) 1996-07-10
EP0466752A1 (en) 1992-01-22
ES2091240T3 (en) 1996-11-01
FI891662A0 (en) 1989-04-07
WO1990012146A1 (en) 1990-10-18
NO176485B (en) 1995-01-02
DE69027770T2 (en) 1996-11-28
DE69027770D1 (en) 1996-08-14
JPH05500835A (en) 1993-02-18
NO913904L (en) 1991-10-04
ZA902703B (en) 1994-10-07
ATE140282T1 (en) 1996-07-15
CA2049951A1 (en) 1990-10-08
FI85513B (en) 1992-01-15
NO176485C (en) 1995-04-12
FI85513C (en) 1992-04-27
BR9007276A (en) 1992-03-17
NO913904D0 (en) 1991-10-04
NZ233237A (en) 1993-02-25
AU647020B2 (en) 1994-03-17
AU5420190A (en) 1990-11-05

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: SALOMANS OY

Owner name: HACKMAN PROSESSI OY