ES2121870T3 - Procedimiento y aparato para la mezcla de gas en una suspension de fibras y procedimiento de blanqueado mediante la aplicacion de dicho procedimiento. - Google Patents

Procedimiento y aparato para la mezcla de gas en una suspension de fibras y procedimiento de blanqueado mediante la aplicacion de dicho procedimiento.

Info

Publication number
ES2121870T3
ES2121870T3 ES92921912T ES92921912T ES2121870T3 ES 2121870 T3 ES2121870 T3 ES 2121870T3 ES 92921912 T ES92921912 T ES 92921912T ES 92921912 T ES92921912 T ES 92921912T ES 2121870 T3 ES2121870 T3 ES 2121870T3
Authority
ES
Spain
Prior art keywords
mixing
gas
procedure
pct
bleaching
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
ES92921912T
Other languages
English (en)
Inventor
Mika Makela
Toivo Niskanen
Kari Peltonen
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.)
Ahlstrom Corp
Original Assignee
Ahlstrom Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8533320&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2121870(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ahlstrom Corp filed Critical Ahlstrom Corp
Application granted granted Critical
Publication of ES2121870T3 publication Critical patent/ES2121870T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2321—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by moving liquid and gas in counter current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2336—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
    • B01F23/23365—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced at the radial periphery of the stirrer
    • 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
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

LA INVENCION SE REFIERE A LA MEZCLA DE UN GAS EN UN MEDIO. EL METODO Y EL APARATO DE ACUERDO CON LA INVENCION SON ESPECIALMENTE APLICABLES EN PLANTAS DE BLANQUEADO DE LA INDUSTRIA DE PROCESAMIENTO DE LA MADERA PARA MEZCLAR PRODUCTOS QUIMICOS BLANQUEADORES GASEOSOS CON LA PULPA Y SE REFIERE A PROCESOS DE BLANQUEADO DE PULPA, EN LOS CUALES EL METODO Y EL APARATO MEZCLADOR SON APLICADOS. UNA APLICACION EXCELENTE ES LA MEZCLA DE UN GAS QUE CONTENGA OZONO EN UNA SUSPENSION DE FIBRA QUE FLUYA EN UNA TUBERIA Y UN PROCESO DE BLANQUEADO MEDIANTE OZONO. LOS METODOS Y APARATOS PREVIAMENTE CONOCIDOS NO ERAN CAPACES DE MEZCLAR SATISFACTORIAMENTE GRANDES VOLUMENES DE GAS, ALREDEDOR DEL 50% DEL VOLUMEN TOTAL DEL FLUJO, EN EL FLUJO DEL MEDIO. EN EL METODO LA MEZCLA SE LLEVA A CABO CON GRAN FUERZA DE FORMA EFICIENTE Y UNIFORME, DESPUES DE LO CUAL LA RED DE FIBRAS DEL MEDIO PUEDE FORMARSE DE MANERA RAPIDA Y CONTROLADA DE MANERA QUE EL GAS NO PUEDA SEPARARSE DEL FLUJO COMO BURBUJAS, SINO QUE PERMANEZCA EN ELFLUJO EN LA RED DE FIBRAS.
ES92921912T 1991-10-18 1992-10-16 Procedimiento y aparato para la mezcla de gas en una suspension de fibras y procedimiento de blanqueado mediante la aplicacion de dicho procedimiento. Expired - Lifetime ES2121870T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI914922A FI95821B (fi) 1991-10-18 1991-10-18 Menetelmä ja laite kaasun sekoittamiseksi väliaineeseen sekä menetelmää soveltava valkaisuprosessi

Publications (1)

Publication Number Publication Date
ES2121870T3 true ES2121870T3 (es) 1998-12-16

Family

ID=8533320

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92921912T Expired - Lifetime ES2121870T3 (es) 1991-10-18 1992-10-16 Procedimiento y aparato para la mezcla de gas en una suspension de fibras y procedimiento de blanqueado mediante la aplicacion de dicho procedimiento.

Country Status (8)

Country Link
US (1) US5536368A (es)
EP (1) EP0610291B1 (es)
AT (1) ATE169517T1 (es)
CA (1) CA2121505C (es)
DE (1) DE69226644T2 (es)
ES (1) ES2121870T3 (es)
FI (1) FI95821B (es)
WO (1) WO1993007961A1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI925558A (fi) * 1992-04-22 1993-10-23 Ahlstroem Oy Foerfarande och anordning foer blekning av massa
SE501894C2 (sv) * 1993-10-13 1995-06-12 Kvaerner Pulping Tech Förfarande och anordning för inmixning av fluid i en massasuspension
FI103019B1 (fi) * 1994-01-25 1999-04-15 Ahlstroem Oy Menetelmä ja laite kaasumaisen kemikaalin sekoittamiseksi kuitususpensioon
WO1999019560A1 (en) * 1996-11-25 1999-04-22 A. Ahlström Osakeyhtiö Method and apparatus for heating pulps
US6193406B1 (en) * 1996-12-20 2001-02-27 Andritz-Ahlstrom Oy Method and apparatus for mixing pulp a suspension with a fluid medium with a freely rotatable mixing rotor
US6027572A (en) * 1997-06-23 2000-02-22 Princeton Trade And Technologt, Inc Cleaning method for removing biofilm and debris from lines and tubing
US6579412B2 (en) * 1998-05-08 2003-06-17 L'air Liquide - Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for ozone bleaching of low consistency pulp
US20050067122A1 (en) * 2000-05-17 2005-03-31 Bijan Kazem Methods of processing lignocellulosic pulp with cavitation
AT413018B (de) * 2002-03-21 2005-10-15 Andritz Ag Maschf Verfahren und vorrichtung zum fördern von fliessfähigen medien
AT413017B (de) * 2002-03-21 2005-10-15 Andritz Ag Maschf Verfahren und vorrichtung zum einmischen von fluiden in fliessfähige medien
US6880966B1 (en) 2002-07-17 2005-04-19 Itt Manufacturing Enterprises, Inc. Inline high turbulence mixer having combined oblique and transverse stationary vanes
KR101977027B1 (ko) * 2012-03-28 2019-05-10 웅진코웨이 주식회사 버블공급기구를 구비한 도기세정장치 및 도기세정장치의 세정방법
CN112156731A (zh) * 2020-09-08 2021-01-01 南京延长反应技术研究院有限公司 一种聚乙醇酸的强化微界面制备系统及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272573A (en) * 1939-04-24 1942-02-10 Phillips Petroleum Co Combined fluid mixer and pump
US2772863A (en) * 1954-08-30 1956-12-04 Pacific Pumps Inc Mixing pump
US3048376A (en) * 1958-04-09 1962-08-07 Curtiss Wright Corp Fluid mixing apparatus
FI62872C (fi) * 1978-06-06 1983-03-10 Ahlstroem Oy Anordning foer silning av fibersuspensioner
US4435085A (en) * 1982-08-06 1984-03-06 Ingersoll-Rand Company Mixer for use in pulp processes
US5279709A (en) * 1987-02-23 1994-01-18 A. Ahlstrom Method and apparatus for improving the control and treatment of fiber suspension flow
US5064093A (en) * 1990-04-16 1991-11-12 W. A. Lane, Inc. Product cup denester

Also Published As

Publication number Publication date
FI914922A0 (fi) 1991-10-18
US5536368A (en) 1996-07-16
EP0610291B1 (en) 1998-08-12
CA2121505A1 (en) 1993-04-29
DE69226644T2 (de) 1999-01-28
FI95821B (fi) 1995-12-15
FI914922A (fi) 1993-04-19
EP0610291A1 (en) 1994-08-17
DE69226644D1 (de) 1998-09-17
ATE169517T1 (de) 1998-08-15
WO1993007961A1 (en) 1993-04-29
CA2121505C (en) 2003-12-09

Similar Documents

Publication Publication Date Title
ES2121870T3 (es) Procedimiento y aparato para la mezcla de gas en una suspension de fibras y procedimiento de blanqueado mediante la aplicacion de dicho procedimiento.
DE69932948D1 (de) Verfahren zur herstellung von partiklen unter verwendung einer überkritischen flüssigkeit
DE69934611D1 (de) Verfahren und Vorrichtung zum Zuführen einer Chemikalie in eine Flüssigkeitsströmung
DE69527086D1 (de) Verfahren und vorrichtung zur behandlung von flüssigkeiten
ATE111371T1 (de) Vorrichtung und verfahren zur behandlung von pulpe.
ATE171883T1 (de) Verfahren und apparat zum mischen einer gasförmigen chemischen substanz zu fasersuspensionen
NO20065176L (no) Fremgangsmate, apparat og rotor for homogenisering av et medium
DE69620608D1 (de) Verfahren und vorrichtung zur behandlung eines schlecht wärmeableitenden materials
FI963648A (fi) Epäorgaanisten aineiden vesisuspensiot
ATA292789A (de) Verfahren zum bleichen von cellulosehaeltigen materialien sowie anlage zur durchfuehrung des verfahrens
ATE300351T1 (de) Verfahren zum einbringen eines gases in eine flüssigkeit
ATE168581T1 (de) Vorrichtung und verfahren zum auflösen von wasserlöslichen, pulverförmigen polymerisaten
FI952688A (fi) Menetelmä ja laite nestenäytteen valmistamiseksi
FI965137A0 (fi) Menetelmä ja laite toisen väliaineen sekoittamisekMenetelmä ja laite toisen väliaineen sekoittamiseksi ensimmäiseen väliaineeseen si ensimmäiseen väliaineeseen
MD980160A (ro) Instalaţie de amestecare cu cavitaţie mixtă
AU2989697A (en) Mixing device
DE19824075A1 (de) Einspritzdüse für belastetes Wasser-Luftgemisch in Verbindung mit Eiweißabschäumer
Suzuki A New Laboratory Method for the Evaluation of Bactericides for Controlling Oilfield Corrosion Causing Bacteria
UA13941A (uk) Кавітаційhий реактор
ATE386836T1 (de) Ozonbleiche von einem mittelkonsitenten zellstoff ohne hochschermischung
FI940371A (fi) Menetelmä ja laite kaasumaisen kemikaalin sekoittamiseksi kuitususpensioon
UA9648A (uk) Змішувач

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 610291

Country of ref document: ES