AU5224500A - Method to improve the opacity of mechanical pulp by using aliphatic peroxyacids and use of peroxyacids to improve opacity - Google Patents

Method to improve the opacity of mechanical pulp by using aliphatic peroxyacids and use of peroxyacids to improve opacity

Info

Publication number
AU5224500A
AU5224500A AU52245/00A AU5224500A AU5224500A AU 5224500 A AU5224500 A AU 5224500A AU 52245/00 A AU52245/00 A AU 52245/00A AU 5224500 A AU5224500 A AU 5224500A AU 5224500 A AU5224500 A AU 5224500A
Authority
AU
Australia
Prior art keywords
opacity
improve
peroxyacids
mechanical pulp
aliphatic
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
AU52245/00A
Other languages
English (en)
Inventor
Jukka Jakara
Aarto Paren
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.)
Kemira Chemicals Oy
Original Assignee
Kemira Chemicals Oy
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 Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Publication of AU5224500A publication Critical patent/AU5224500A/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
    • D21C9/16—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
    • 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
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AU52245/00A 1999-06-15 2000-06-14 Method to improve the opacity of mechanical pulp by using aliphatic peroxyacids and use of peroxyacids to improve opacity Abandoned AU5224500A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI991366A FI107545B (fi) 1999-06-15 1999-06-15 Menetelmä mekaanisten massojen käsittelemiseksi
FI991366 1999-06-15
PCT/FI2000/000532 WO2000077301A1 (en) 1999-06-15 2000-06-14 Method to improve the opacity of mechanical pulp by using aliphatic peroxyacids and use of peroxyacids to improve opacity

Publications (1)

Publication Number Publication Date
AU5224500A true AU5224500A (en) 2001-01-02

Family

ID=8554886

Family Applications (1)

Application Number Title Priority Date Filing Date
AU52245/00A Abandoned AU5224500A (en) 1999-06-15 2000-06-14 Method to improve the opacity of mechanical pulp by using aliphatic peroxyacids and use of peroxyacids to improve opacity

Country Status (9)

Country Link
EP (1) EP1244851B1 (fi)
AT (1) ATE239828T1 (fi)
AU (1) AU5224500A (fi)
CA (1) CA2374673A1 (fi)
DE (1) DE60002613T2 (fi)
ES (1) ES2193085T3 (fi)
FI (1) FI107545B (fi)
NO (1) NO20016083L (fi)
WO (1) WO2000077301A1 (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI111745B (fi) 2001-12-19 2003-09-15 Kemira Chemicals Oy Parannettu kartonginvalmistusmenetelmä
GB2391011A (en) * 2002-07-19 2004-01-28 Crosmill Ltd Bleaching cellulose suspensions
US8531326B2 (en) 2008-07-30 2013-09-10 Micro Motion, Inc. Method and apparatus for pulse width modulation signal processing
FI127444B (fi) * 2015-05-27 2018-06-15 Kemira Oyj Menetelmä massan viskositeetin vähentämiseksi liukoselluloosan valmistuksessa
FI127996B (fi) * 2016-07-01 2019-07-15 Kemira Oyj Prosessi sellun käsittelemiseksi
WO2019048698A1 (en) * 2017-09-11 2019-03-14 Kemira Oyj PROCESS FOR TREATING PULP

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1119546A (en) * 1965-03-01 1968-07-10 Paper Chemistry Inst Improved method of treating fibrous material
US5589032A (en) * 1992-09-21 1996-12-31 North Carolina State University Process for preparing a bleaching liquor containing percarboxylic acid and caro's acid
WO1997022749A1 (en) * 1995-12-19 1997-06-26 Kvaerner Hymac Inc. Process for treating refiner pulp

Also Published As

Publication number Publication date
FI991366A0 (fi) 1999-06-15
DE60002613D1 (de) 2003-06-12
EP1244851A1 (en) 2002-10-02
FI107545B (fi) 2001-08-31
CA2374673A1 (en) 2000-12-21
FI991366A (fi) 2000-12-16
DE60002613T2 (de) 2003-11-27
NO20016083D0 (no) 2001-12-13
EP1244851B1 (en) 2003-05-07
WO2000077301A1 (en) 2000-12-21
ES2193085T3 (es) 2003-11-01
ATE239828T1 (de) 2003-05-15
NO20016083L (no) 2002-02-14

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase