[go: up one dir, main page]

AU675291B2 - Method for chlorine-free bleaching of pulp with acetic acid as acidifying agent - Google Patents

Method for chlorine-free bleaching of pulp with acetic acid as acidifying agent

Info

Publication number
AU675291B2
AU675291B2 AU59820/94A AU5982094A AU675291B2 AU 675291 B2 AU675291 B2 AU 675291B2 AU 59820/94 A AU59820/94 A AU 59820/94A AU 5982094 A AU5982094 A AU 5982094A AU 675291 B2 AU675291 B2 AU 675291B2
Authority
AU
Australia
Prior art keywords
pulp
peroxide
bleaching
acid
acetic acid
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 - Fee Related
Application number
AU59820/94A
Other languages
English (en)
Other versions
AU5982094A (en
Inventor
Erik Nilsson
Petter Tibbling
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.)
Metso Fiber Karlstad AB
Original Assignee
Kvaerner Pulping Technologies AB
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 Kvaerner Pulping Technologies AB filed Critical Kvaerner Pulping Technologies AB
Publication of AU5982094A publication Critical patent/AU5982094A/en
Application granted granted Critical
Publication of AU675291B2 publication Critical patent/AU675291B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
    • 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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • 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)
  • Paper (AREA)
AU59820/94A 1993-01-29 1994-01-26 Method for chlorine-free bleaching of pulp with acetic acid as acidifying agent Expired - Fee Related AU675291B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9300277 1993-01-29
SE9300277A SE501325E (sv) 1993-01-29 1993-01-29 Förfarande för klorfri blekning av massa, varvid massan surgöres med ättiksyra vid behandlingen med komplexbildare
PCT/SE1994/000054 WO1994017239A1 (en) 1993-01-29 1994-01-26 Method for chlorine-free bleaching of pulp with acetic acid as acidifying agent

Publications (2)

Publication Number Publication Date
AU5982094A AU5982094A (en) 1994-08-15
AU675291B2 true AU675291B2 (en) 1997-01-30

Family

ID=20388704

Family Applications (1)

Application Number Title Priority Date Filing Date
AU59820/94A Expired - Fee Related AU675291B2 (en) 1993-01-29 1994-01-26 Method for chlorine-free bleaching of pulp with acetic acid as acidifying agent

Country Status (10)

Country Link
EP (1) EP0681624A1 (sv)
JP (1) JPH08505907A (sv)
CN (1) CN1117301A (sv)
AU (1) AU675291B2 (sv)
BR (1) BR9406193A (sv)
CA (1) CA2154076A1 (sv)
FI (1) FI111387B (sv)
NO (1) NO305763B1 (sv)
SE (1) SE501325E (sv)
WO (1) WO1994017239A1 (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1050642C (zh) * 1996-06-25 2000-03-22 华南理工大学 高浓纸浆过氧化氢漂白方法
CN103726382B (zh) * 2013-12-31 2016-08-17 安徽泾县千年古宣宣纸有限公司 一种纯草型宣纸及其无氯漂白生产工艺
EP3882380B1 (en) * 2020-03-16 2022-04-27 Re:NewCell AB One stage method for acid metal removal and bleach

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867246A (en) * 1972-04-21 1975-02-18 Degussa Chlorine-free multiple step bleaching of cellulose
EP0402335A2 (en) * 1989-06-06 1990-12-12 Eka Nobel Ab Process for bleaching lignocellulose-containing pulps
EP0512590A1 (en) * 1991-04-30 1992-11-11 Eka Nobel Ab Process for bleaching of lignocellulose-containing material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2841013C2 (de) * 1978-09-21 1984-06-07 Degussa Ag, 6000 Frankfurt Verfahren zur Vollbleiche von Zellstoff

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867246A (en) * 1972-04-21 1975-02-18 Degussa Chlorine-free multiple step bleaching of cellulose
EP0402335A2 (en) * 1989-06-06 1990-12-12 Eka Nobel Ab Process for bleaching lignocellulose-containing pulps
EP0512590A1 (en) * 1991-04-30 1992-11-11 Eka Nobel Ab Process for bleaching of lignocellulose-containing material

Also Published As

Publication number Publication date
SE501325E (sv) 1999-09-20
SE501325C2 (sv) 1995-01-16
BR9406193A (pt) 1996-01-09
CA2154076A1 (en) 1994-08-04
NO952935L (no) 1995-09-13
NO952935D0 (no) 1995-07-24
FI953589A (sv) 1995-07-27
FI953589A0 (sv) 1995-07-27
AU5982094A (en) 1994-08-15
NO305763B1 (no) 1999-07-19
EP0681624A1 (en) 1995-11-15
JPH08505907A (ja) 1996-06-25
SE9300277D0 (sv) 1993-01-29
CN1117301A (zh) 1996-02-21
WO1994017239A1 (en) 1994-08-04
FI111387B (sv) 2003-07-15
SE9300277L (sv) 1994-07-30

Similar Documents

Publication Publication Date Title
CA1119360A (en) Method for bleaching oxygen delignified cellulose-containing pulp with ozone
CA2017807C (en) Process for bleaching lignocellulose-containing pulps
EP0511695B1 (en) Process for bleaching of lignocellulose-containing pulp
EP1040222B1 (en) Bleaching of chemical pulp with peracid
CA2149648C (en) Process for delignification of lignocellulose-containing pulp
US6398908B1 (en) Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
JPH0670315B2 (ja) 強化酸化抽出法
US5876561A (en) Post digestion treatment of cellulosic pulp to minimize formation of dioxin
EP0401149B1 (en) Hydrogen peroxide reinforced oxygen delignification
AU675291B2 (en) Method for chlorine-free bleaching of pulp with acetic acid as acidifying agent
CA2099881A1 (en) Chlorine-free process for bleaching lignocellulosic pulp
EP0702735B1 (en) Method of bleaching pulp without using chlorine chemicals
WO1991012366A1 (en) Bleaching of paper pulp
EP0496827A1 (en) Chlorine dioxide pulp bleaching process using sequential chlorine addition
JPH08503749A (ja) リグノセルロース含有パルプの漂白方法
WO2000052258A1 (en) Bleaching of pulp with peracid as final bleaching agent
WO2000008251A1 (en) An improved method for bleaching pulp
EP0717800A1 (en) Medium consistency ozone brightening of high consistency ozone bleached pulp
WO1996005364A1 (en) Bleaching of chemical paper pulp under sulphonating conditions
CA2139246A1 (en) Process for bleaching of lignocellulose-containing pulp
NZ229702A (en) Bleaching chemical pulp including an activation step followed by an alkaline extraction step with no intervening washing step
AU7217091A (en) Bleaching of paper pulp