EP0106460A1 - Méthode et appareil pour délignification à l'oxygène - Google Patents

Méthode et appareil pour délignification à l'oxygène Download PDF

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Publication number
EP0106460A1
EP0106460A1 EP83304894A EP83304894A EP0106460A1 EP 0106460 A1 EP0106460 A1 EP 0106460A1 EP 83304894 A EP83304894 A EP 83304894A EP 83304894 A EP83304894 A EP 83304894A EP 0106460 A1 EP0106460 A1 EP 0106460A1
Authority
EP
European Patent Office
Prior art keywords
oxygen
conduit
fibrous materials
materials
reaction zone
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.)
Ceased
Application number
EP83304894A
Other languages
German (de)
English (en)
Inventor
Vincent Louis Magnotta
Larry Derwood Markham
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.)
Air Products and Chemicals Inc
Black Clawson Co
Original Assignee
Air Products and Chemicals Inc
Black Clawson Co
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 Air Products and Chemicals Inc, Black Clawson Co filed Critical Air Products and Chemicals Inc
Publication of EP0106460A1 publication Critical patent/EP0106460A1/fr
Ceased legal-status Critical Current

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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
    • 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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2
EP83304894A 1982-09-30 1983-08-24 Méthode et appareil pour délignification à l'oxygène Ceased EP0106460A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43148682A 1982-09-30 1982-09-30
US431486 1982-09-30

Publications (1)

Publication Number Publication Date
EP0106460A1 true EP0106460A1 (fr) 1984-04-25

Family

ID=23712154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83304894A Ceased EP0106460A1 (fr) 1982-09-30 1983-08-24 Méthode et appareil pour délignification à l'oxygène

Country Status (9)

Country Link
EP (1) EP0106460A1 (fr)
JP (1) JPS5982488A (fr)
KR (1) KR840005846A (fr)
BR (1) BR8305348A (fr)
CA (1) CA1213104A (fr)
ES (1) ES8504999A1 (fr)
FI (1) FI833514A (fr)
NO (1) NO833033L (fr)
ZA (1) ZA835925B (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167060A1 (fr) * 1984-06-20 1986-01-08 Union Carbide Corporation Procédé pour disperser un fluide dans un autre
EP0226495A1 (fr) * 1985-11-15 1987-06-24 Canadian Liquid Air Ltd Air Liquide Canada Ltee Procédé et appareil pour le blanchiment de la pâte à papier
EP0295180A2 (fr) * 1987-06-08 1988-12-14 Canadian Liquid Air Ltd Air Liquide Canada Ltee Procédé de blanchiment ou de délignification d'une pâte cellulosique par l'oxygène, et installation pour sa mise en oeuvre
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
WO1993009391A1 (fr) * 1991-11-06 1993-05-13 Sunds Defibrator Industries Aktiebolag Dispositif de chauffage
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
US5217574A (en) * 1989-02-15 1993-06-08 Union Camp Patent Holdings Inc. Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
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
US5451296A (en) * 1991-05-24 1995-09-19 Union Camp Patent Holding, Inc. Two stage pulp bleaching reactor
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
WO2009097877A1 (fr) * 2008-02-08 2009-08-13 Voith Patent Gmbh Système pour mélanger et diluer
WO2009097878A1 (fr) * 2008-02-08 2009-08-13 Voith Patent Gmbh Système mélangeur et procédé approprié

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61137696U (fr) * 1985-02-13 1986-08-27

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2000953A (en) * 1933-10-30 1935-05-14 Hooker Electrochemical Co Means for reacting semifluid materials
US4161421A (en) * 1977-09-13 1979-07-17 Kamyr, Inc. Method and apparatus for continuous oxygen bleaching of cellulosic pulp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2000953A (en) * 1933-10-30 1935-05-14 Hooker Electrochemical Co Means for reacting semifluid materials
US4161421A (en) * 1977-09-13 1979-07-17 Kamyr, Inc. Method and apparatus for continuous oxygen bleaching of cellulosic pulp

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167060A1 (fr) * 1984-06-20 1986-01-08 Union Carbide Corporation Procédé pour disperser un fluide dans un autre
EP0226495A1 (fr) * 1985-11-15 1987-06-24 Canadian Liquid Air Ltd Air Liquide Canada Ltee Procédé et appareil pour le blanchiment de la pâte à papier
EP0295180A2 (fr) * 1987-06-08 1988-12-14 Canadian Liquid Air Ltd Air Liquide Canada Ltee Procédé de blanchiment ou de délignification d'une pâte cellulosique par l'oxygène, et installation pour sa mise en oeuvre
FR2617877A1 (fr) * 1987-06-08 1989-01-13 Liquid Air Canada Procede de blanchiment ou de delignification d'une pate cellulosique par l'oxygene, et installation pour sa mise en oeuvre
EP0295180A3 (fr) * 1987-06-08 1989-10-11 Canadian Liquid Air Ltd Air Liquide Canada Ltee Procédé de blanchiment ou de délignification d'une pâte cellulosique par l'oxygène, et installation pour sa mise en oeuvre
AU613952B2 (en) * 1987-06-08 1991-08-15 Canadian Liquid Air Ltd. Method of bleaching or delignification of cellulose pulp with oxygen
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
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
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
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
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
US5217574A (en) * 1989-02-15 1993-06-08 Union Camp Patent Holdings Inc. Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
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
US5863389A (en) * 1990-10-26 1999-01-26 Union Camp Patent Holding, Inc. Pulp bleaching reactor for dispersing high consistency pulp into a gaseous bleaching agent containing ozone
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp 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
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5451296A (en) * 1991-05-24 1995-09-19 Union Camp Patent Holding, Inc. Two stage pulp bleaching reactor
US5989388A (en) * 1991-05-24 1999-11-23 Union Camp Patent Holding, Inc. Method for ozone bleaching of high consistency pulp in two stages
WO1993009391A1 (fr) * 1991-11-06 1993-05-13 Sunds Defibrator Industries Aktiebolag Dispositif de chauffage
US5479792A (en) * 1991-11-06 1996-01-02 Sunds Defibrator Industries Aktiebolag Heating arrangement
WO2009097877A1 (fr) * 2008-02-08 2009-08-13 Voith Patent Gmbh Système pour mélanger et diluer
WO2009097878A1 (fr) * 2008-02-08 2009-08-13 Voith Patent Gmbh Système mélangeur et procédé approprié
CN101939086A (zh) * 2008-02-08 2011-01-05 沃依特专利有限责任公司 混合装置和方法

Also Published As

Publication number Publication date
ZA835925B (en) 1984-04-25
FI833514A0 (fi) 1983-09-29
BR8305348A (pt) 1984-05-08
FI833514A (fi) 1984-03-31
NO833033L (no) 1984-04-02
JPS5982488A (ja) 1984-05-12
ES526161A0 (es) 1985-05-01
ES8504999A1 (es) 1985-05-01
KR840005846A (ko) 1984-11-19
CA1213104A (fr) 1986-10-28

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT DE FR GB IT SE

17P Request for examination filed

Effective date: 19841023

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19861206

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MARKHAM, LARRY DERWOOD

Inventor name: MAGNOTTA, VINCENT LOUIS