ES2143989T3 - Aparato y metodo para blanquear pasta papelera. - Google Patents

Aparato y metodo para blanquear pasta papelera.

Info

Publication number
ES2143989T3
ES2143989T3 ES92914663T ES92914663T ES2143989T3 ES 2143989 T3 ES2143989 T3 ES 2143989T3 ES 92914663 T ES92914663 T ES 92914663T ES 92914663 T ES92914663 T ES 92914663T ES 2143989 T3 ES2143989 T3 ES 2143989T3
Authority
ES
Spain
Prior art keywords
pasta
ozone
paste
reactor
bleaching paper
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 - Lifetime
Application number
ES92914663T
Other languages
English (en)
Inventor
David C White
Michael Pikulin
Thomas P Gandek
William H Friend
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.)
Union Camp Patent Holding Inc
Original Assignee
Union Camp Patent Holding Inc
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 Union Camp Patent Holding Inc filed Critical Union Camp Patent Holding Inc
Application granted granted Critical
Publication of ES2143989T3 publication Critical patent/ES2143989T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0724—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis directly mounted on the rotating axis
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/071—Fixing of the stirrer to the shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1145—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and the rotating axis

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

UN APARATO Y UN METODO PARA EL BLANQUEAMIENTO DE UNA PASTA LIGNOCELULOSICA DE GRAN CONSISTENCIA MEDIANTE LA UTILIZACION DE OZONO SUMINISTRADO A TRAVES DE UN GAS QUE CONTENGA OZONO. EL APARATO REACTOR DE BLANQUEAMIENTO DE LA INVENCION TIENE UN RECIPIENTE GENERALMENTE CILINDRICO (42A, 42B) CON UN EJE ROTATIVO (48B) QUE TIENE UNAS PALETAS QUE SE EXTIENDEN RADIALMENTE (52B) U OTROS ELEMENTOS DE TRANSPORTE DISPUESTOS DE TAL MODO QUE MINIMICEN LA DISPERSION AXIAL DE LA PASTA Y MAXIMICEN LA DISPERSION RADIAL DE LA PASTA PARA OBTENER UN FLUJO OBTURADO DE LA PASTA RADIALMENTE DISPERSO A TRAVES DEL REACTOR EN PRESENCIA DEL OZONO PARA OBTENER UNA PASTA BLANQUEDA DE FORMA SUSTANCIALMENTE UNIFORME.
ES92914663T 1992-01-15 1992-04-24 Aparato y metodo para blanquear pasta papelera. Expired - Lifetime ES2143989T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/821,117 US5472572A (en) 1990-10-26 1992-01-15 Reactor for bleaching high consistency pulp with ozone

Publications (1)

Publication Number Publication Date
ES2143989T3 true ES2143989T3 (es) 2000-06-01

Family

ID=25232567

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92914663T Expired - Lifetime ES2143989T3 (es) 1992-01-15 1992-04-24 Aparato y metodo para blanquear pasta papelera.

Country Status (15)

Country Link
US (1) US5472572A (es)
EP (1) EP0627029B1 (es)
JP (1) JP3691845B2 (es)
AT (1) ATE188521T1 (es)
AU (1) AU661014B2 (es)
BR (1) BR9207052A (es)
CA (1) CA2128241C (es)
DE (1) DE69230539T2 (es)
DK (1) DK0627029T3 (es)
ES (1) ES2143989T3 (es)
FI (1) FI110195B (es)
NO (1) NO302765B1 (es)
RU (1) RU2117720C1 (es)
SE (1) SE9402489L (es)
WO (1) WO1993014260A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US20050173082A1 (en) * 1998-08-24 2005-08-11 Arbozon Oy Ltd. Bleaching of medium consistency pulp with ozone without high shear mixing
US20040200587A1 (en) * 2003-04-08 2004-10-14 Herring William J. Cellulose pulp having increased hemicellulose content
US20040200589A1 (en) * 2003-04-08 2004-10-14 Herring William J. Method of making pulp having high hemicellulose content
SE0400940L (sv) * 2004-04-07 2005-08-16 Kvaerner Pulping Tech Förfarande och anordning för utspädning av avvattnad cellulosamassa
KR20110067992A (ko) * 2009-12-15 2011-06-22 삼성전자주식회사 내부발열을 이용한 바이오매스의 전처리 방법 및 전처리 장치

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Also Published As

Publication number Publication date
AU661014B2 (en) 1995-07-13
EP0627029A4 (en) 1995-12-06
US5472572A (en) 1995-12-05
ATE188521T1 (de) 2000-01-15
DK0627029T3 (da) 2000-06-13
CA2128241C (en) 2000-09-05
NO942645L (no) 1994-09-02
WO1993014260A1 (en) 1993-07-22
EP0627029A1 (en) 1994-12-07
JP3691845B2 (ja) 2005-09-07
FI110195B (fi) 2002-12-13
JPH07507103A (ja) 1995-08-03
DE69230539D1 (de) 2000-02-10
DE69230539T2 (de) 2000-08-03
FI943356L (fi) 1994-09-14
FI943356A0 (fi) 1994-07-14
RU2117720C1 (ru) 1998-08-20
AU2265792A (en) 1993-08-03
NO302765B1 (no) 1998-04-20
NO942645D0 (no) 1994-07-14
EP0627029B1 (en) 2000-01-05
SE9402489D0 (sv) 1994-07-15
CA2128241A1 (en) 1993-07-22
RU94037763A (ru) 1996-07-10
BR9207052A (pt) 1995-12-05
SE9402489L (sv) 1994-09-13

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