PL171990B1 - Sposób selektywnej delignifikacji chemicznej masy papierniczej PL - Google Patents

Sposób selektywnej delignifikacji chemicznej masy papierniczej PL

Info

Publication number
PL171990B1
PL171990B1 PL92296122A PL29612292A PL171990B1 PL 171990 B1 PL171990 B1 PL 171990B1 PL 92296122 A PL92296122 A PL 92296122A PL 29612292 A PL29612292 A PL 29612292A PL 171990 B1 PL171990 B1 PL 171990B1
Authority
PL
Poland
Prior art keywords
treatment
organic
peroxy acid
acid
organic peroxy
Prior art date
Application number
PL92296122A
Other languages
English (en)
Polish (pl)
Other versions
PL296122A1 (en
Inventor
Roy T Hill
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=27118364&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PL171990(B1) "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 PL296122A1 publication Critical patent/PL296122A1/xx
Publication of PL171990B1 publication Critical patent/PL171990B1/pl

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • External Artificial Organs (AREA)
  • Preliminary Treatment Of Fibers (AREA)
PL92296122A 1991-10-04 1992-10-01 Sposób selektywnej delignifikacji chemicznej masy papierniczej PL PL171990B1 (pl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77085991A 1991-10-04 1991-10-04
US94283892A 1992-09-10 1992-09-10

Publications (2)

Publication Number Publication Date
PL296122A1 PL296122A1 (en) 1993-06-28
PL171990B1 true PL171990B1 (pl) 1997-07-31

Family

ID=27118364

Family Applications (1)

Application Number Title Priority Date Filing Date
PL92296122A PL171990B1 (pl) 1991-10-04 1992-10-01 Sposób selektywnej delignifikacji chemicznej masy papierniczej PL

Country Status (9)

Country Link
EP (2) EP0844328A3 (de)
JP (1) JPH05195467A (de)
AT (1) ATE168149T1 (de)
AU (1) AU660326B2 (de)
DE (1) DE69226143T2 (de)
ES (1) ES2120984T3 (de)
FI (1) FI924448A (de)
NZ (1) NZ244592A (de)
PL (1) PL171990B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269191A (en) * 1992-07-29 1994-02-02 Solvay Interox Ltd Method of treating aqueous process liquors
MX9307415A (es) * 1992-11-27 1994-07-29 Eka Nobel Ab Proceso para la deslignificacion de pulpa que contiene lignocelulosa.
US6007678A (en) * 1992-11-27 1999-12-28 Eka Nobel Ab Process for delignification of lignocellulose-containing pulp with an organic peracid or salts thereof
CZ285246B6 (cs) * 1992-11-27 1999-06-16 Eka Nobel Ab Způsob bělení buničiny obsahující lignocelulozu
DE19516151A1 (de) * 1995-05-03 1996-11-07 Sven Siegle Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung
ATE244752T1 (de) * 1996-03-04 2003-07-15 Procter & Gamble Wäsche-vorbehandlungsverfahren und bleichmittelzusammensetzungen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1014536A (en) * 1910-05-24 1912-01-09 Minosaku Takahashi Vessel-closure.
FR1014536A (fr) * 1940-04-01 1952-08-18 Du Pont Perfectionnements au blanchiment des pâtes de bois
SE420430B (sv) * 1978-02-17 1981-10-05 Mo Och Domsjoe Ab Forfarande for blekning och extraktion av lignocellulosahaltig material med peroxidhaltiga blekmedel
DE3005947B1 (de) * 1980-02-16 1981-01-29 Degussa Verfahren zur Bleiche von Zellstoffen mittels organischer Persaeure
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

Also Published As

Publication number Publication date
ATE168149T1 (de) 1998-07-15
EP0844328A3 (de) 1998-07-15
PL296122A1 (en) 1993-06-28
AU2538292A (en) 1993-04-22
DE69226143D1 (de) 1998-08-13
NZ244592A (en) 1994-02-25
DE69226143T2 (de) 1999-02-25
EP0535741A1 (de) 1993-04-07
AU660326B2 (en) 1995-06-22
FI924448A (fi) 1993-04-05
JPH05195467A (ja) 1993-08-03
ES2120984T3 (es) 1998-11-16
FI924448A0 (fi) 1992-10-02
EP0535741B1 (de) 1998-07-08
EP0844328A2 (de) 1998-05-27

Similar Documents

Publication Publication Date Title
CA2017807C (en) Process for bleaching lignocellulose-containing pulps
JP2864167B2 (ja) リグノセルロース含有パルプの脱リグニン化法
RU2039141C1 (ru) Способ делигнификации и отбелки химически сваренной лигноцеллюлозосодержащей пульпы
FI68685B (fi) Foerfarande foer blekning av cellulosa medelst organisk persyra
US4459174A (en) Process for the delignification and bleaching of chemical and semi-chemical cellulosic pulps
SK70393A3 (en) Method of delignification of chemical paper stock
US3867246A (en) Chlorine-free multiple step bleaching of cellulose
US4626319A (en) Process for the delignification and acid bleaching of cellulose with oxygen and hydrogen peroxide
EP0480469A2 (de) Chlorfreier Holzzellstoff und Verfahren zur Herstellung
JPS6088191A (ja) セルロース系材料の処理方法
SI9300362A (en) Process for bleaching of chemical paper pulp
AU672654B2 (en) Method of producing a mixed peracid oxidizing solution and methods for treating substrates therewith
US5639348A (en) Bleaching compositions comprising sulfamates and borates or gluconates and processes
NZ248082A (en) Delignification of chemical paper pulp using an organic peroxy acid (with no stabiliser therefor)
PL171990B1 (pl) Sposób selektywnej delignifikacji chemicznej masy papierniczej PL
EP0250422B1 (de) Verfahren zur herstellung gebleichter pulpe aus lignocelluloserohstoff
EP0789798B1 (de) Verfahren zur delignifizierung und zum bleichen von chemischen zellstoff
USH1690H (en) Process for bleaching kraft pulp
CZ132895A3 (en) Bleaching process of pulp containing ligno-cellulose
JPH08507332A (ja) 製紙用化学パルプの脱リグニン方法
NO300511B1 (no) Fremgangsmåte for delignifisering av cellulosemasse
FI111387B (fi) Menetelmä massan klooritonta valkaisua varten etikkahapolla hapotusaineena
RU2097462C1 (ru) Способ делигнификации и отбеливания лигноцеллюлозосодержащей пульпы
Zeinaly et al. The use of TAED in the last phase of CMP peroxide bleaching
JPH06158573A (ja) 製紙用化学パルプの漂白方法