SK70493A3 - Process for delignification of chemical paper stock - Google Patents

Process for delignification of chemical paper stock Download PDF

Info

Publication number
SK70493A3
SK70493A3 SK704-93A SK70493A SK70493A3 SK 70493 A3 SK70493 A3 SK 70493A3 SK 70493 A SK70493 A SK 70493A SK 70493 A3 SK70493 A3 SK 70493A3
Authority
SK
Slovakia
Prior art keywords
peroxyacid
weight
acid
organic peroxyacid
organic
Prior art date
Application number
SK704-93A
Other languages
English (en)
Slovak (sk)
Inventor
Patricia B Walsh
Original Assignee
Solvay Interox
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25425145&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SK70493(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Solvay Interox filed Critical Solvay Interox
Publication of SK70493A3 publication Critical patent/SK70493A3/sk

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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
SK704-93A 1992-07-06 1993-07-02 Process for delignification of chemical paper stock SK70493A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90808392A 1992-07-06 1992-07-06

Publications (1)

Publication Number Publication Date
SK70493A3 true SK70493A3 (en) 1994-02-02

Family

ID=25425145

Family Applications (1)

Application Number Title Priority Date Filing Date
SK704-93A SK70493A3 (en) 1992-07-06 1993-07-02 Process for delignification of chemical paper stock

Country Status (13)

Country Link
US (1) US5431781A (de)
EP (1) EP0578303B1 (de)
JP (1) JPH06108392A (de)
AT (1) ATE132926T1 (de)
AU (1) AU666375B2 (de)
BR (1) BR9302768A (de)
CA (1) CA2099828A1 (de)
DE (1) DE69301285T2 (de)
ES (1) ES2086183T3 (de)
FI (1) FI933105L (de)
NZ (1) NZ248082A (de)
SI (1) SI9300364A (de)
SK (1) SK70493A3 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI942968L (fi) * 1994-06-20 1995-12-21 Kemira Chemicals Oy Menetelmä kemiallisen massan delignifioimiseksi
FI942970A7 (fi) * 1994-06-20 1995-12-21 Kemira Chemicals Oy Menetelmä kemiallisen massan delignifioimiseksi
FI98841C (fi) * 1994-06-20 1997-08-25 Kemira Chemicals Oy Menetelmä kemiallisen massan delignifioimiseksi
CA2211223C (en) * 1995-02-17 2002-04-30 Ahlstrom Machinery Oy Method of pretreating pulp to be bleached with peroxide
FI104572B (fi) * 1996-05-30 2000-02-29 Kemira Chemicals Oy Menetelmä kemiallisen massan valkaisemiseksi
FR2814180B1 (fr) * 2000-09-18 2003-12-05 Michel Delmas Procede de blanchiment de pates a papier en milieu organique a hydratation controlee
AU2008313142B2 (en) * 2007-10-17 2013-05-23 Nippon Steel & Sumikin Chemical Co., Ltd. Production methods for solubilized lignin, saccharide raw material and monosaccharide raw material, and solubilized lignin
WO2012166997A2 (en) 2011-05-31 2012-12-06 Clean Chemistry, Llc Electrochemical reactor and process
US9517955B2 (en) 2012-09-07 2016-12-13 Clean Chemistry, Llc System and method for generation of point of use reactive oxygen species
WO2016037149A1 (en) 2014-09-04 2016-03-10 Clean Chemistry, Inc. Method of water treatment utilizing a peracetate oxidant solution
CA2981034C (en) 2015-03-26 2024-06-25 Clean Chemistry, Inc. Systems and methods of reducing a bacteria population in high hydrogen sulfide water
US10883224B2 (en) 2015-12-07 2021-01-05 Clean Chemistry, Inc. Methods of pulp fiber treatment
FI3386948T3 (fi) 2015-12-07 2025-05-15 Clean Chemistry Inc Selluloosakuitujen käsittelymenetelmät
FI127996B (en) 2016-07-01 2019-07-15 Kemira Oyj A process for treating pulp
US11136714B2 (en) 2016-07-25 2021-10-05 Clean Chemistry, Inc. Methods of optical brightening agent removal
US11001864B1 (en) 2017-09-07 2021-05-11 Clean Chemistry, Inc. Bacterial control in fermentation systems
US11311012B1 (en) 2017-09-07 2022-04-26 Clean Chemistry, Inc. Bacterial control in fermentation systems
EP4712775A1 (de) 2023-05-17 2026-03-25 Clean Chemistry, Inc. Oxidationsbehandlungsformulierungen und verfahren zur lebensmittelverarbeitung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1014536A (fr) * 1940-04-01 1952-08-18 Du Pont Perfectionnements au blanchiment des pâtes de bois
DE3005947B1 (de) * 1980-02-16 1981-01-29 Degussa Verfahren zur Bleiche von Zellstoffen mittels organischer Persaeure
JPS5721591A (en) * 1980-07-11 1982-02-04 Mitsubishi Gas Chemical Co Peroxide bleaching of wood pulp
US4793898A (en) * 1985-02-22 1988-12-27 Oy Keskuslaboratorio - Centrallaboratorium Ab Process for bleaching organic peroxyacid cooked material with an alkaline solution of hydrogen peroxide
US4826568A (en) * 1985-08-05 1989-05-02 Interox (Societe Anonyme) Process for delignification of cellulosic substances by pretreating with a complexing agent followed by peroxide prior to kraft digestion

Also Published As

Publication number Publication date
FI933105A7 (fi) 1994-01-07
ES2086183T3 (es) 1996-06-16
US5431781A (en) 1995-07-11
EP0578303A1 (de) 1994-01-12
NZ248082A (en) 1995-12-21
DE69301285D1 (de) 1996-02-22
JPH06108392A (ja) 1994-04-19
FI933105A0 (fi) 1993-07-06
AU666375B2 (en) 1996-02-08
AU4170493A (en) 1994-01-13
BR9302768A (pt) 1994-02-08
FI933105L (fi) 1994-01-07
CA2099828A1 (fr) 1994-01-07
SI9300364A (en) 1994-03-31
ATE132926T1 (de) 1996-01-15
DE69301285T2 (de) 1996-08-22
EP0578303B1 (de) 1996-01-10

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