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AR247257A1 - Process for bleaching and delignifying chemical paper pulp - Google Patents

Process for bleaching and delignifying chemical paper pulp

Info

Publication number
AR247257A1
AR247257A1 AR92322455A AR32245592A AR247257A1 AR 247257 A1 AR247257 A1 AR 247257A1 AR 92322455 A AR92322455 A AR 92322455A AR 32245592 A AR32245592 A AR 32245592A AR 247257 A1 AR247257 A1 AR 247257A1
Authority
AR
Argentina
Prior art keywords
bleaching
paper pulp
chemical paper
stage
delignifying chemical
Prior art date
Application number
AR92322455A
Other languages
Spanish (es)
Original Assignee
Interox Internat S A
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 Interox Internat S A filed Critical Interox Internat S A
Application granted granted Critical
Publication of AR247257A1 publication Critical patent/AR247257A1/en

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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • 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
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

PROCEDIMIENTO PARA EL BLANQUEO Y LA DESLIGNIFICACION DE UNA PASTA DE PAPEL QUIMICA POR MEDIO DE UNA SECUENCIA DE TRES ETAPAS DE TRATAMIENTO QUE NO RECURRE A REACTIVOS CLORADOS; EN UNA PRIMERA ETAPA, SE TRATA DE PASTA CRUDA POR MEDIO DE OXIGENO GASEOSO Y, EN LAS ETAPAS SEGUNDA Y TERCERA SE TRATA LA PASTA PROVENIENTE DE LA PRIMERA ETAPA CON, RESPECTIVAMENTE Y EN UN ORDEN INDIFERENTE, OZONO GASEOSO Y ACIDO PEROXIMONOSULFURICO O UNA DE SUS SALES.PROCEDURE FOR THE BLEACHING AND THE DE-LIGNIFICATION OF A CHEMICAL PAPER PULP THROUGH A THREE-STAGE SEQUENCE OF TREATMENT THAT DOES NOT USE A CHLORINATED REAGENT; IN A FIRST STAGE, IT IS ABOUT CRUDE PASTE BY MEANS OF GASEOUS OXYGEN AND, IN THE SECOND AND THIRD STAGES, THE PASTA FROM THE FIRST STAGE IS TREATED WITH, RESPECTIVELY AND IN AN INDIFFERENT ORDER, A GASEOUS OZONE AND A PEROXIMAL ACID YOU GO OUT.

AR92322455A 1991-06-06 1992-06-02 Process for bleaching and delignifying chemical paper pulp AR247257A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9100549A BE1004974A3 (en) 1991-06-06 1991-06-06 Method for laundering and pasta delignification paper chemicals and application this method of laundering and the delignification of kraft pulp and pulp asam.

Publications (1)

Publication Number Publication Date
AR247257A1 true AR247257A1 (en) 1994-11-30

Family

ID=3885547

Family Applications (1)

Application Number Title Priority Date Filing Date
AR92322455A AR247257A1 (en) 1991-06-06 1992-06-02 Process for bleaching and delignifying chemical paper pulp

Country Status (16)

Country Link
EP (1) EP0587822B1 (en)
JP (1) JPH06507683A (en)
AR (1) AR247257A1 (en)
AT (1) ATE127179T1 (en)
AU (1) AU651462B2 (en)
BE (1) BE1004974A3 (en)
BR (1) BR9206112A (en)
CA (1) CA2110698A1 (en)
DE (1) DE69204457T2 (en)
ES (1) ES2079209T3 (en)
FI (1) FI935422A (en)
NO (1) NO302129B1 (en)
NZ (1) NZ242996A (en)
WO (1) WO1992021814A1 (en)
YU (1) YU48264B (en)
ZA (1) ZA924021B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006881A3 (en) * 1993-03-02 1995-01-17 Solvay Interox Method for delignification of chemical pulp.
SE506480C2 (en) * 1995-06-29 1997-12-22 Sca Graphic Res Ab Bleaching of lignocellulosic fibrous material with ozone and peracid in a combination step
US5770011A (en) * 1995-11-17 1998-06-23 International Paper Company Neutral monoperoxysulfate bleaching process
FI964715A (en) * 1996-11-26 1998-05-27 Keskuslaboratorio Method for bleaching cellulose pulp
EP0931874A1 (en) * 1998-01-22 1999-07-28 Degussa-Hüls Aktiengesellschaft Pulp bleaching process including final stage treatment step with salt of peroxymonosulfuric acid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic

Also Published As

Publication number Publication date
DE69204457T2 (en) 1996-04-18
FI935422A0 (en) 1993-12-03
YU58792A (en) 1994-09-09
YU48264B (en) 1997-09-30
BR9206112A (en) 1995-10-10
FI935422A (en) 1994-01-11
JPH06507683A (en) 1994-09-01
EP0587822A1 (en) 1994-03-23
ES2079209T3 (en) 1996-01-01
DE69204457D1 (en) 1995-10-05
NZ242996A (en) 1995-01-27
ZA924021B (en) 1993-02-24
WO1992021814A1 (en) 1992-12-10
NO302129B1 (en) 1998-01-26
ATE127179T1 (en) 1995-09-15
AU651462B2 (en) 1994-07-21
AU1877592A (en) 1993-01-08
NO934406D0 (en) 1993-12-03
CA2110698A1 (en) 1992-12-10
EP0587822B1 (en) 1995-08-30
BE1004974A3 (en) 1993-03-09
NO934406L (en) 1994-01-26

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