ID23571A - Metoda penerapan ozon dalam pemutihan ecf - Google Patents

Metoda penerapan ozon dalam pemutihan ecf

Info

Publication number
ID23571A
ID23571A IDP981108A ID981108A ID23571A ID 23571 A ID23571 A ID 23571A ID P981108 A IDP981108 A ID P981108A ID 981108 A ID981108 A ID 981108A ID 23571 A ID23571 A ID 23571A
Authority
ID
Indonesia
Prior art keywords
ecf bleaching
ozone application
ozone
ecf
bleaching
Prior art date
Application number
IDP981108A
Other languages
English (en)
Inventor
Jorge Luiz Colodette
Ana Campos H De Brito
Marcelo Rodrigues Da Silva
Elias Salvador
Original Assignee
Praxair Technology 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 Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of ID23571A publication Critical patent/ID23571A/id

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
    • D21C9/147—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
    • D21C9/1057—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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/24—Continuous 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D21C3/263—Multistage processes at least one stage being in presence of oxygen
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
IDP981108A 1997-08-25 1998-08-06 Metoda penerapan ozon dalam pemutihan ecf ID23571A (id)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91723597A 1997-08-25 1997-08-25

Publications (1)

Publication Number Publication Date
ID23571A true ID23571A (id) 2000-05-04

Family

ID=25438514

Family Applications (1)

Application Number Title Priority Date Filing Date
IDP981108A ID23571A (id) 1997-08-25 1998-08-06 Metoda penerapan ozon dalam pemutihan ecf

Country Status (6)

Country Link
EP (1) EP0905307A1 (id)
KR (1) KR19990023814A (id)
CN (1) CN1209480A (id)
BR (1) BR9803217A (id)
CA (1) CA2245535A1 (id)
ID (1) ID23571A (id)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995478B (zh) * 2011-09-09 2015-04-15 吉林化纤集团有限责任公司 一种制备高质量低污染竹材溶解浆的漂白方法
CN111979822A (zh) * 2020-08-07 2020-11-24 齐鲁工业大学 一种适合无元素氯（ecf）短程序漂白的顺序漂白工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4959124A (en) * 1989-05-05 1990-09-25 International Paper Company Method of bleaching kraft pulp in a DZED sequence
SE467260B (sv) * 1989-12-29 1992-06-22 Kamyr Ab Blekning av cellulosamassa med klordioxid och ozon i ett och samma steg
CA2063591C (en) * 1990-05-17 1998-02-03 Bruce F. Griggs Environmentally improved process for bleaching lignocellulosic materials
SE470065C (sv) * 1991-04-30 1996-01-15 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning

Also Published As

Publication number Publication date
CN1209480A (zh) 1999-03-03
KR19990023814A (ko) 1999-03-25
EP0905307A1 (en) 1999-03-31
CA2245535A1 (en) 1999-02-25
BR9803217A (pt) 1999-11-03

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