JPS5430902A - Industrial multistage pulp bleaching method - Google Patents

Industrial multistage pulp bleaching method

Info

Publication number
JPS5430902A
JPS5430902A JP7668977A JP7668977A JPS5430902A JP S5430902 A JPS5430902 A JP S5430902A JP 7668977 A JP7668977 A JP 7668977A JP 7668977 A JP7668977 A JP 7668977A JP S5430902 A JPS5430902 A JP S5430902A
Authority
JP
Japan
Prior art keywords
pulp bleaching
bleaching method
industrial multistage
multistage pulp
industrial
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP7668977A
Other languages
English (en)
Inventor
Riyuuichi Kimura
Fumihiro Oomori
Kenji Nomura
Yutaka Yoneda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Research Institute for Production Development
Original Assignee
Research Institute for Production Development
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 Research Institute for Production Development filed Critical Research Institute for Production Development
Priority to JP7668977A priority Critical patent/JPS5430902A/ja
Priority to SE7807120A priority patent/SE440372B/sv
Priority to FI782032A priority patent/FI70610C/fi
Priority to CA306,198A priority patent/CA1103409A/en
Publication of JPS5430902A publication Critical patent/JPS5430902A/ja
Pending legal-status Critical Current

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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
JP7668977A 1977-06-27 1977-06-27 Industrial multistage pulp bleaching method Pending JPS5430902A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7668977A JPS5430902A (en) 1977-06-27 1977-06-27 Industrial multistage pulp bleaching method
SE7807120A SE440372B (sv) 1977-06-27 1978-06-21 Forfarande for blekning av kemisk massa med ozon
FI782032A FI70610C (fi) 1977-06-27 1978-06-26 Foerfarande foer blekning av kemikalisk massa i ett flertal stg
CA306,198A CA1103409A (en) 1977-06-27 1978-06-26 Method of bleaching chemical pulp in multiple stages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7668977A JPS5430902A (en) 1977-06-27 1977-06-27 Industrial multistage pulp bleaching method

Publications (1)

Publication Number Publication Date
JPS5430902A true JPS5430902A (en) 1979-03-07

Family

ID=13612417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7668977A Pending JPS5430902A (en) 1977-06-27 1977-06-27 Industrial multistage pulp bleaching method

Country Status (4)

Country Link
JP (1) JPS5430902A (ja)
CA (1) CA1103409A (ja)
FI (1) FI70610C (ja)
SE (1) SE440372B (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0390690A (ja) * 1989-08-16 1991-04-16 Mas Fab Andritz Ag 繊維質材料の細分化方法およびその装置
US5368688A (en) * 1992-07-08 1994-11-29 Sumitomo Heavy Industries, Ltd. Method for bleaching pulp with ozone with successive steps of lower consistency
US5389201A (en) * 1992-02-28 1995-02-14 International Paper Company Bleaching of kraft cellulosic pulp employing ozone and reduced consumption of chlorine containing bleaching agent
US5989388A (en) * 1991-05-24 1999-11-23 Union Camp Patent Holding, Inc. Method for ozone bleaching of high consistency pulp in two stages
US6547923B1 (en) * 1989-05-10 2003-04-15 Andritz Oy Process for bleaching medium consistency pulp with ozone using a pressurized fluidizing mixer

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
AT395028B (de) 1990-02-07 1992-08-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von kunstfaserzellstoff
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
US5944952A (en) * 1995-07-26 1999-08-31 Beloit Technologies, Inc. Method for bleaching high consistency pulp with a gaseous bleaching reagent

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126302A (en) * 1974-08-22 1976-03-04 Hitachi Shipbuilding Eng Co Sansoganjugasunyoru seruroosubutsushitsuno shorihoho
JPS526363A (en) * 1975-07-04 1977-01-18 Nikkan Ind Pipe bender

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126302A (en) * 1974-08-22 1976-03-04 Hitachi Shipbuilding Eng Co Sansoganjugasunyoru seruroosubutsushitsuno shorihoho
JPS526363A (en) * 1975-07-04 1977-01-18 Nikkan Ind Pipe bender

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6547923B1 (en) * 1989-05-10 2003-04-15 Andritz Oy Process for bleaching medium consistency pulp with ozone using a pressurized fluidizing mixer
US6579411B1 (en) * 1989-05-10 2003-06-17 Andritz Oy Bleaching medium consistency pulp with ozone
JPH0390690A (ja) * 1989-08-16 1991-04-16 Mas Fab Andritz Ag 繊維質材料の細分化方法およびその装置
US5989388A (en) * 1991-05-24 1999-11-23 Union Camp Patent Holding, Inc. Method for ozone bleaching of high consistency pulp in two stages
US5389201A (en) * 1992-02-28 1995-02-14 International Paper Company Bleaching of kraft cellulosic pulp employing ozone and reduced consumption of chlorine containing bleaching agent
US5368688A (en) * 1992-07-08 1994-11-29 Sumitomo Heavy Industries, Ltd. Method for bleaching pulp with ozone with successive steps of lower consistency

Also Published As

Publication number Publication date
SE7807120L (sv) 1978-12-28
FI70610C (fi) 1986-09-24
CA1103409A (en) 1981-06-23
FI70610B (fi) 1986-06-06
SE440372B (sv) 1985-07-29
FI782032A7 (fi) 1978-12-28

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