UY33190A - Proceso para la deslignificación y el blanqueado de la pulpa química - Google Patents

Proceso para la deslignificación y el blanqueado de la pulpa química

Info

Publication number
UY33190A
UY33190A UY0001033190A UY33190A UY33190A UY 33190 A UY33190 A UY 33190A UY 0001033190 A UY0001033190 A UY 0001033190A UY 33190 A UY33190 A UY 33190A UY 33190 A UY33190 A UY 33190A
Authority
UY
Uruguay
Prior art keywords
chemical pulp
bleaching
delignification
chlorine dioxide
tungstate
Prior art date
Application number
UY0001033190A
Other languages
English (en)
Inventor
Dr Thomas Dietz
Original Assignee
Evonik Degussa 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 Evonik Degussa Gmbh filed Critical Evonik Degussa Gmbh
Publication of UY33190A publication Critical patent/UY33190A/es

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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • 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
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • 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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)

Abstract

La deslignificación y el blanqueado de la pulpa química por una etapa de blanqueado, en los que la pulpa química reacciona primero con dióxido de cloro y, después de la reacción de dióxido de cloro, se hace reaccionar adicionalmente sin lavado intermedio con peróxido de hidrógeno en la presencia de un molibdato o tungstato, permite la predicción de la pulpa química que tiene una blancura de al menos 89,5%, que tiene mejor estabilidad el amarillamiento y reducido daño oxidativo.
UY0001033190A 2010-01-19 2011-01-17 Proceso para la deslignificación y el blanqueado de la pulpa química UY33190A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010001001A DE102010001001A1 (de) 2010-01-19 2010-01-19 Verfahren zur Delignifizierung und Bleiche von Zellstoff

Publications (1)

Publication Number Publication Date
UY33190A true UY33190A (es) 2011-05-31

Family

ID=44070008

Family Applications (1)

Application Number Title Priority Date Filing Date
UY0001033190A UY33190A (es) 2010-01-19 2011-01-17 Proceso para la deslignificación y el blanqueado de la pulpa química

Country Status (17)

Country Link
US (1) US8568558B2 (es)
EP (1) EP2345760B1 (es)
JP (1) JP5800511B2 (es)
KR (1) KR101818921B1 (es)
AR (1) AR081122A1 (es)
AU (1) AU2011200185B2 (es)
BR (1) BRPI1100069A2 (es)
CA (1) CA2728349C (es)
DE (1) DE102010001001A1 (es)
ES (1) ES2638318T3 (es)
LT (1) LT2345760T (es)
NZ (1) NZ590491A (es)
PL (1) PL2345760T3 (es)
PT (1) PT2345760T (es)
RU (1) RU2525760C2 (es)
UY (1) UY33190A (es)
ZA (1) ZA201100470B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE532370C2 (sv) * 2008-02-28 2009-12-29 Metso Paper Inc Metod för blekning av en massa
DE102010001001A1 (de) 2010-01-19 2011-07-21 Evonik Degussa GmbH, 45128 Verfahren zur Delignifizierung und Bleiche von Zellstoff
DE102012200990A1 (de) 2012-01-24 2013-07-25 Evonik Industries Ag Verfahren zur Rückgewinnung von Molybdat bei einer mit Molybdat katalysierten Delignifizierung von Zellstoff mit Wasserstoffperoxid
RU2503764C1 (ru) * 2012-11-28 2014-01-10 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" Способ отбелки бисульфитной целлюлозы
FR3007044B1 (fr) * 2013-06-13 2016-01-15 Air Liquide Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium
RU2523118C1 (ru) * 2013-06-17 2014-07-20 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" Способ отбелки лиственной сульфатной целлюлозы
US10006169B2 (en) * 2013-11-06 2018-06-26 Evonik Degussa Gmbh Method for delignifying and bleaching pulp
CN104594102A (zh) * 2014-12-29 2015-05-06 周锦和 一种浆板生产工艺
WO2016159403A1 (ko) * 2015-03-30 2016-10-06 주식회사 아시아모빌 킬레이트 화합물을 이용한 펄프 표백방법
FR3062138B1 (fr) * 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Procede de blanchiment d'une pate a papier
WO2021231372A1 (en) * 2020-05-11 2021-11-18 Worcester Polytechnic Institute Non-decellularized plant leaf cultures for meat
CA3110390A1 (en) * 2021-02-25 2022-08-25 Sixring Inc. Modified sulfuric acid and uses thereof
RU2759613C1 (ru) * 2021-03-22 2021-11-16 федеральное государственное автономное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Способ отбелки бисульфитной целлюлозы

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SE532370C2 (sv) 2008-02-28 2009-12-29 Metso Paper Inc Metod för blekning av en massa
CL2009000939A1 (es) * 2008-04-30 2010-10-01 Evonik Degussa Gmbh Proceso para recuperar molibdato o tungstato desde una solucion acuosa que comprende a) contactar la solucion con un material portador inorganico cationizado e insoluble en agua, b) separar el material portador de molibdato o tungstato, c) contactarlo con una solucion acuosa con un ph entre 6 a 14 y d) separar el material saturado.
DE102010001001A1 (de) 2010-01-19 2011-07-21 Evonik Degussa GmbH, 45128 Verfahren zur Delignifizierung und Bleiche von Zellstoff

Also Published As

Publication number Publication date
ES2638318T3 (es) 2017-10-19
JP2011149140A (ja) 2011-08-04
RU2011101637A (ru) 2012-09-27
DE102010001001A1 (de) 2011-07-21
AU2011200185A1 (en) 2011-08-04
CA2728349C (en) 2013-02-26
US8568558B2 (en) 2013-10-29
EP2345760A1 (de) 2011-07-20
BRPI1100069A2 (pt) 2013-10-22
ZA201100470B (en) 2011-10-26
NZ590491A (en) 2012-05-25
CA2728349A1 (en) 2011-07-19
AU2011200185B2 (en) 2015-11-12
KR101818921B1 (ko) 2018-01-17
US20110174451A1 (en) 2011-07-21
EP2345760B1 (de) 2017-07-12
LT2345760T (lt) 2017-10-25
AR081122A1 (es) 2012-06-27
PL2345760T3 (pl) 2017-12-29
RU2525760C2 (ru) 2014-08-20
KR20110085906A (ko) 2011-07-27
PT2345760T (pt) 2017-08-30
JP5800511B2 (ja) 2015-10-28

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Legal Events

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Effective date: 20191121