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ES8504999A1 - PROCEDURE AND APPARATUS FOR THE CONTINUOUS DE-LIGNIFICATION BY OXYGEN OF FIBROUS MATERIALS - Google Patents

PROCEDURE AND APPARATUS FOR THE CONTINUOUS DE-LIGNIFICATION BY OXYGEN OF FIBROUS MATERIALS

Info

Publication number
ES8504999A1
ES8504999A1 ES526161A ES526161A ES8504999A1 ES 8504999 A1 ES8504999 A1 ES 8504999A1 ES 526161 A ES526161 A ES 526161A ES 526161 A ES526161 A ES 526161A ES 8504999 A1 ES8504999 A1 ES 8504999A1
Authority
ES
Spain
Prior art keywords
oxygen
procedure
fibrous materials
continuous
lignification
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.)
Expired
Application number
ES526161A
Other languages
Spanish (es)
Other versions
ES526161A0 (en
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 ES8504999A1 publication Critical patent/ES8504999A1/en
Publication of ES526161A0 publication Critical patent/ES526161A0/en
Granted 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

PROCEDIMIENTO Y APARATO PARA LA DESLIGNIFICACION CONTINUA POR OXIGENO DE MATERIALES FIBROSOS.EL PROCEDIMIENTO COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, LOS MATERIALES SE BOMBEAN POR MEDIO DE UNA BOMBA DE MATERIAL ESPESO A TRAVES DE UN CONDUCTO HASTA LA ZONA DE REACCION; SEGUNDA, SE INTRODUCE OXIGENO EN DICHOS MATERIALES, MIENTRAS FLUYEN A TRAVES DEL CONOUCTO HASTA LA ZONA DE REACCION; Y POR ULTIMO, SE AGITAN LOS MATERIALES FIBROSOS DENTRO DEL CONDUCTO PARA MEZCLARLOS CON EL OXIGENO E INICIAR ASI LA REACCION DE DESLIGNIFICACION POR OXIGENO..PROCEDURE AND APPARATUS FOR THE CONTINUOUS OXYGEN DELIGNIFICATION OF FIBROUS MATERIALS. THE PROCEDURE INCLUDES THE FOLLOWING OPERATIONS: FIRST, THE MATERIALS ARE PUMPED BY MEANS OF A THICK MATERIAL PUMP THROUGH A DUCT TO THE REACT AREA; SECOND, OXYGEN IS INTRODUCED IN SUCH MATERIALS AS THEY FLOW THROUGH THE CONOUCT TO THE REACTION ZONE; AND LASTLY, THE FIBROUS MATERIALS ARE AGITATED WITHIN THE DUCT TO MIX THEM WITH THE OXYGEN AND THUS INITIATE THE OXYGEN DELIGNIFICATION REACTION.

ES526161A 1982-09-30 1983-09-30 PROCEDURE AND APPARATUS FOR THE CONTINUOUS DE-LIGNIFICATION BY OXYGEN OF FIBROUS MATERIALS Granted ES526161A0 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
ES8504999A1 true ES8504999A1 (en) 1985-05-01
ES526161A0 ES526161A0 (en) 1985-05-01

Family

ID=23712154

Family Applications (1)

Application Number Title Priority Date Filing Date
ES526161A Granted ES526161A0 (en) 1982-09-30 1983-09-30 PROCEDURE AND APPARATUS FOR THE CONTINUOUS DE-LIGNIFICATION BY OXYGEN OF FIBROUS MATERIALS

Country Status (9)

Country Link
EP (1) EP0106460A1 (en)
JP (1) JPS5982488A (en)
KR (1) KR840005846A (en)
BR (1) BR8305348A (en)
CA (1) CA1213104A (en)
ES (1) ES526161A0 (en)
FI (1) FI833514A7 (en)
NO (1) NO833033L (en)
ZA (1) ZA835925B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1262722A (en) * 1984-06-20 1989-11-07 Lawrence Marvin Litz Process for dispersing one fluid in another
JPS61137696U (en) * 1985-02-13 1986-08-27
AU595842B2 (en) * 1985-11-15 1990-04-12 Canadian Liquid Air Ltd. Pulp bleaching
CA1300322C (en) * 1987-06-08 1992-05-12 Derek Hornsey Method of bleaching or delignification of cellulose pulp with oxygen
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
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
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
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
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor 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
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
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
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
DE69221385T2 (en) * 1991-05-24 1997-12-11 Union Camp Patent Holding, Inc., Wilmington, Del. Two-stage pulp bleaching reactor and method for bleaching with ozone
SE469398B (en) * 1991-11-06 1993-06-28 Sunds Defibrator Ind Ab HEATING DEVICE FOR EXAMPLE OF CELLULOSAMASSA THEREOF APPLIED BY A MULTIPLE, SCRUBLED LOCATION, TAKEN IN A TRANSMISSION WALL
DE102008000256A1 (en) * 2008-02-08 2009-08-13 Voith Patent Gmbh Mixing and dilution arrangement
DE102008000258A1 (en) * 2008-02-08 2009-08-13 Voith Patent Gmbh mixing arrangement

Family Cites Families (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

Also Published As

Publication number Publication date
JPS5982488A (en) 1984-05-12
CA1213104A (en) 1986-10-28
KR840005846A (en) 1984-11-19
ES526161A0 (en) 1985-05-01
ZA835925B (en) 1984-04-25
NO833033L (en) 1984-04-02
FI833514A7 (en) 1984-03-31
FI833514A0 (en) 1983-09-29
EP0106460A1 (en) 1984-04-25
BR8305348A (en) 1984-05-08

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