CA2194290A1 - Bleaching of chemical paper pulp under sulphonating conditions - Google Patents

Bleaching of chemical paper pulp under sulphonating conditions

Info

Publication number
CA2194290A1
CA2194290A1 CA002194290A CA2194290A CA2194290A1 CA 2194290 A1 CA2194290 A1 CA 2194290A1 CA 002194290 A CA002194290 A CA 002194290A CA 2194290 A CA2194290 A CA 2194290A CA 2194290 A1 CA2194290 A1 CA 2194290A1
Authority
CA
Canada
Prior art keywords
bleaching
stage
sulphite
bar
acidic
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.)
Abandoned
Application number
CA002194290A
Other languages
English (en)
French (fr)
Inventor
Petter Tibbling
Ulla Ekstrom
Erik Nilsson
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
Individual
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 Individual filed Critical Individual
Publication of CA2194290A1 publication Critical patent/CA2194290A1/en
Abandoned 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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA002194290A 1994-08-16 1995-05-04 Bleaching of chemical paper pulp under sulphonating conditions Abandoned CA2194290A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9402726-5 1994-08-16
SE9402726A SE502135C2 (sv) 1994-08-16 1994-08-16 Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg

Publications (1)

Publication Number Publication Date
CA2194290A1 true CA2194290A1 (en) 1996-02-22

Family

ID=20394928

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002194290A Abandoned CA2194290A1 (en) 1994-08-16 1995-05-04 Bleaching of chemical paper pulp under sulphonating conditions

Country Status (6)

Country Link
AU (1) AU2755895A (sv)
CA (1) CA2194290A1 (sv)
FI (1) FI970519A (sv)
SE (1) SE502135C2 (sv)
WO (1) WO1996005364A1 (sv)
ZA (1) ZA955971B (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105701B (sv) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Förfarande och anordning för behandling av massa
SE516219C2 (sv) * 1995-10-26 2001-12-03 Kvaerner Pulping Tech Blekning av kemisk pappersmassa i ett sulfonerande steg och ett surt syredelignifieringssteg
EP0960235B1 (en) * 1997-01-21 2002-04-24 University Of New Brunswick Oxygen delignification process of pulp
US8980051B2 (en) * 2009-04-24 2015-03-17 International Paper Company Sulfonation of pulp produced by alkali pulping process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO152907C (no) * 1983-06-29 1985-12-11 Peterson & Son As M Fremgangsmaate til delignifisering av kjemisk masse.
US5089089A (en) * 1984-12-31 1992-02-18 Bear Island Paper Company System for sulfonating mechanical pulp fibers
FR2655668B1 (fr) * 1989-12-11 1995-06-09 Du Pin Cellulose Procede de blanchiment de pates cellulosiques chimiques.
BE1004630A3 (fr) * 1990-10-17 1992-12-22 Interox Internat Sa Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.

Also Published As

Publication number Publication date
AU2755895A (en) 1996-03-07
SE9402726D0 (sv) 1994-08-16
WO1996005364A1 (en) 1996-02-22
FI970519A0 (sv) 1997-02-07
ZA955971B (en) 1996-02-21
FI970519A (sv) 1997-02-07
SE9402726L (sv) 1995-08-28
SE502135C2 (sv) 1995-08-28

Similar Documents

Publication Publication Date Title
JP4499280B2 (ja) 過酸による化学パルプの漂白
JPS61138793A (ja) 強化酸化抽出法
AU664453B2 (en) A process for bleaching pulp without using chlorine-containing chemicals
US4804440A (en) Multistage brightening of high yield and ultra high-yield wood pulps
AU654623B2 (en) Process for bleaching a chemical paper pulp
US8080129B2 (en) Environmentally benign TCF bleaching sequences for AS/AQ wheat straw pulp
CA2185808A1 (en) Method for complex treatment of pulp in conjunction with a chlorine dioxide stage
NZ259440A (en) Chlorine-free peroxide bleaching of pulp at elevated temperature and pressure, the bleaching vessel meeting particular requirements of surface area exposed and cross-sectional area
CA2031848C (en) Method of bleaching pulp
CA2670697C (en) Method for bleaching chemical paper pulps by final ozone treatment at high temperature
JPH1181173A (ja) 漂白パルプの製造方法
CA2194290A1 (en) Bleaching of chemical paper pulp under sulphonating conditions
CA2099881A1 (en) Chlorine-free process for bleaching lignocellulosic pulp
USH1690H (en) Process for bleaching kraft pulp
JP5471050B2 (ja) Ｔｃｆ漂白方法
CA2163116C (en) Method of bleaching pulp without using chlorine chemicals
AU686024B2 (en) Treatment of chemical pulp with a chelating agent and an oxidizing agent in connection with bleaching
JP2000290887A (ja) リグノセルロースの漂白方法
CA2170733A1 (en) Medium consistency ozone brightening of high consistency ozone bleached pulp
CN114174589A (zh) 漂白纸浆的制造方法
JPH08260370A (ja) リグノセルロース物質の漂白方法
CA2154076A1 (en) Method for chlorine-free bleaching of pulp with acetic acid as acidifying agent
NZ274852A (en) Pulp bleaching process comprising steps qpa in that order (ie decontamination, alkaline hydrogen peroxide bleaching, non peroxygenated acid)
WO1997015714A1 (en) Bleaching sequence for chemical paper pulp including sulphonating and oxidising bleaching stages
JPH10317291A (ja) リグノセルロース物質の漂白方法

Legal Events

Date Code Title Description
FZDE Dead