ES2094337T3 - Procedimiento para blanquear materiales que contienen celulosa. - Google Patents

Procedimiento para blanquear materiales que contienen celulosa.

Info

Publication number
ES2094337T3
ES2094337T3 ES92890101T ES92890101T ES2094337T3 ES 2094337 T3 ES2094337 T3 ES 2094337T3 ES 92890101 T ES92890101 T ES 92890101T ES 92890101 T ES92890101 T ES 92890101T ES 2094337 T3 ES2094337 T3 ES 2094337T3
Authority
ES
Spain
Prior art keywords
gas
ozone
strong
oxygen
procedure
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
ES92890101T
Other languages
English (en)
Inventor
Michael Dr Sinner
Karl Dr Schwarzl
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
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 Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Application granted granted Critical
Publication of ES2094337T3 publication Critical patent/ES2094337T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone
    • C01B13/11—Preparation of ozone by electric discharge
    • 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)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)

Abstract

SE DESCRIBE UN PROCESO Y UNA INSTALACION, QUE EN UNA COMBINACION DE DISTINTAS MEDIDAS SE COMPONE DE: A) UN GAS (3) QUE CONTIENE OZONO GENERADO EN UN GENERADOR DE OZONO (1) A TRAVES D UNA DESCARGA ELECTRICA EN AIRE U OXIGENO, B) EL GAS QUE CONTIENE OZONO SE COMPRIME OBTENIENDOSE OZONO EN UNA SOLUCION ENRIQUECIDA (AGUA FUERTE) EN UN RECIPIENTE (4) DE ABSORCION BAJO PRESION, C) EL AGUA FUERTE ES EXPANDIDO EN UNA ZONA (9) DE EXPANSION, CON LO CUAL QUEDA LIBRE UN GAS CON ALTO CONTENIDO EN O3 (GAS FUERTE), D) EL GAS FUERTE ES DILUIDO CON GAS LIBRE DE OZONO O CORRESPONDIENTEMENTE POBRE EN OXIGENO, E) EL GAS CONTENIDO SE MEZCLA CON EL MATERIAL (14) BLANQUEANTE OBTENIENDOSE LA MEZCLA (13) EN UNA ZONA BLANQUEADORA (16), F) LA SUSPENSION DE MATERIAL BLANQUEADA SE DESGASEA (18) Y EL MATERIAL LAVADO (21) PUEDE SER TRABAJADO POSTERIORMENTE.
ES92890101T 1991-05-02 1992-04-28 Procedimiento para blanquear materiales que contienen celulosa. Expired - Lifetime ES2094337T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0091891A AT395445B (de) 1991-05-02 1991-05-02 Verfahren zum bleichen von cellulosehaeltigem material

Publications (1)

Publication Number Publication Date
ES2094337T3 true ES2094337T3 (es) 1997-01-16

Family

ID=3502826

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92890101T Expired - Lifetime ES2094337T3 (es) 1991-05-02 1992-04-28 Procedimiento para blanquear materiales que contienen celulosa.

Country Status (7)

Country Link
EP (1) EP0512977B1 (es)
AT (1) AT395445B (es)
CA (1) CA2067844A1 (es)
DE (1) DE59207155D1 (es)
ES (1) ES2094337T3 (es)
FI (1) FI921962A7 (es)
RU (1) RU2096547C1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
US5403441A (en) * 1992-11-13 1995-04-04 Union Camp Patent Holding, Inc. Method for controlling an ozone bleaching process
US5364505A (en) * 1992-12-07 1994-11-15 Kamyr, Inc. Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor
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
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5736004A (en) * 1995-03-03 1998-04-07 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140608A (en) * 1977-08-22 1979-02-20 Vaseen Vesper A Converting oxygen to ozone using a liquid dielectric containing dissolved oxygen
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
AT393701B (de) * 1989-12-22 1991-12-10 Schmidding Wilh Gmbh & Co Verfahren zum bleichen von cellulosehaeltigen materialien sowie anlage zur durchfuehrung des verfahrens
AT394707B (de) * 1990-02-14 1992-06-10 Schmidding Wilh Gmbh & Co Verfahren und vorrichtung zur herstellung von ozonhaeltigen loesungen und gasen

Also Published As

Publication number Publication date
EP0512977B1 (de) 1996-09-18
DE59207155D1 (de) 1996-10-24
FI921962A7 (fi) 1992-11-03
RU2096547C1 (ru) 1997-11-20
AT395445B (de) 1992-12-28
ATA91891A (de) 1992-05-15
FI921962A0 (fi) 1992-04-30
CA2067844A1 (en) 1992-11-03
EP0512977A1 (de) 1992-11-11

Similar Documents

Publication Publication Date Title
ES2125032T3 (es) Procedimiento de produccion de un material no tejido.
UA27098A1 (uk) Багатоступіhчатий спосіб вибілюваhhя целюлози
ATE163696T1 (de) Bleichen von zellstoff und reaktor
AR024604A1 (es) Metodo para hacer liquido oxigenado sobresaturado
ES2125370T3 (es) Proceso y dispositivo para la obtencion de argon.
ES2104413T3 (es) Separacion liquido/solido.
ES2093987T3 (es) Proceso catalitico.
FI922279A0 (fi) Tvaostegsreaktor foer blekning av massa.
ATE139250T1 (de) Elektrodenverbrauch in plasmafackeln
BR9000140A (pt) Aparelho para misturar entre si ou homogeneizar um liquido e um fluido gasoso e processo de misturar um liquido e um fluido gasoso
ES2054329T3 (es) Procedimiento y dispositivo para la preparacion de una solucion acuosa ozonifera.
ES2017775T5 (es) Dispositivo para triturar recipientes.
ATE104381T1 (de) Mit wasserstoffperoxid verstaerkte sauerstoffdelignifizierung.
HUP9901194A2 (hu) Vegyi-termomechanikus papírpépet tartalmazó, puha, nagy fajlagos térfogatú, abszorbens papír
SE8904403L (sv) Saett att bleka massa
FI945721A7 (fi) Kierrätetyn paperimassan valkaisu otsonilla ja vetyperoksidilla
ES2118948T3 (es) Desentintado de material celulosico y composiciones utilizadas.
ES2123266T3 (es) Procedimiento y dispositivo para producir espumas mediante dioxido de carbono disuelto bajo presion.
ES2127346T3 (es) Procedimiento y dispositivo de descarga de un reactor.
AR007486A1 (es) Envase
ES2128279T1 (es) Empleo del bis(difluorometil)eter como extintor de incendios.
ES2177778T3 (es) Aparato y procedimiento para mezclar un gas con un liquido.
MX9202683A (es) Metodo para blanquear con ozono pulpa celulosica de consistencia media
ES2001723A6 (es) Procedimiento para la fabricacion de empaquetaduras junta
BR9405402A (pt) Método para produzir polpa quìmico - mec‰nica

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 512977

Country of ref document: ES