ITMI920192A1 - Procedimento per la delignificazione di cellulosa grezza - Google Patents

Procedimento per la delignificazione di cellulosa grezza

Info

Publication number
ITMI920192A1
ITMI920192A1 IT000192A ITMI920192A ITMI920192A1 IT MI920192 A1 ITMI920192 A1 IT MI920192A1 IT 000192 A IT000192 A IT 000192A IT MI920192 A ITMI920192 A IT MI920192A IT MI920192 A1 ITMI920192 A1 IT MI920192A1
Authority
IT
Italy
Prior art keywords
cellulose
raw cellulose
delignification
rough
procedure
Prior art date
Application number
IT000192A
Other languages
English (en)
Inventor
Giulio Calmanti
Fausto Marzolini
Gianpiero Sacchi
Original Assignee
Ausimont Spa
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 Ausimont Spa filed Critical Ausimont Spa
Publication of ITMI920192A0 publication Critical patent/ITMI920192A0/it
Priority to ITMI920192A priority Critical patent/IT1258844B/it
Priority to AT93100468T priority patent/ATE143073T1/de
Priority to EP93100468A priority patent/EP0553649B1/en
Priority to DE69304723T priority patent/DE69304723T2/de
Priority to SI9300044A priority patent/SI9300044B/sl
Priority to JP01281093A priority patent/JP3325324B2/ja
Priority to PL93297562A priority patent/PL181248B1/pl
Priority to CA002088281A priority patent/CA2088281A1/en
Priority to NO930307A priority patent/NO300511B1/no
Priority to CZ93108A priority patent/CZ282570B6/cs
Priority to HRMI92A000192A priority patent/HRP930060B1/xx
Priority to SK47-93A priority patent/SK281308B6/sk
Priority to FI930412A priority patent/FI111386B/fi
Priority to HUP9300246A priority patent/HU216143B/hu
Publication of ITMI920192A1 publication Critical patent/ITMI920192A1/it
Priority to US08/225,353 priority patent/US5587049A/en
Application granted granted Critical
Publication of IT1258844B publication Critical patent/IT1258844B/it

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
    • 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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • External Artificial Organs (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
ITMI920192A 1992-01-31 1992-01-31 Procedimento per la delignificazione di cellulosa grezza IT1258844B (it)

Priority Applications (15)

Application Number Priority Date Filing Date Title
ITMI920192A IT1258844B (it) 1992-01-31 1992-01-31 Procedimento per la delignificazione di cellulosa grezza
AT93100468T ATE143073T1 (de) 1992-01-31 1993-01-14 Verfahren zur delignifizierung von zellstoffpulpe
EP93100468A EP0553649B1 (en) 1992-01-31 1993-01-14 Process for delignifying a cellulose pulp
DE69304723T DE69304723T2 (de) 1992-01-31 1993-01-14 Verfahren zur Delignifizierung von Zellstoffpulpe
SI9300044A SI9300044B (en) 1992-01-31 1993-01-28 Process for lignin separation from a raw cellulose
JP01281093A JP3325324B2 (ja) 1992-01-31 1993-01-28 粗セルロースの脱リグニン化方法
PL93297562A PL181248B1 (pl) 1992-01-31 1993-01-28 Sposób delignifikacji pulpy celulozowej
CA002088281A CA2088281A1 (en) 1992-01-31 1993-01-28 Process for delignifying raw cellulose
NO930307A NO300511B1 (no) 1992-01-31 1993-01-29 Fremgangsmåte for delignifisering av cellulosemasse
CZ93108A CZ282570B6 (cs) 1992-01-31 1993-01-29 Způsob delignifikace surové celulozy
HRMI92A000192A HRP930060B1 (en) 1992-01-31 1993-01-29 Process for delignifying raw cellulose
SK47-93A SK281308B6 (sk) 1992-01-31 1993-01-29 Spôsob delignifikácie surovej celulózy
FI930412A FI111386B (fi) 1992-01-31 1993-01-29 Menetelmä ligniinin poistamiseksi raakaselluloosasta
HUP9300246A HU216143B (hu) 1992-01-31 1993-01-29 Eljárás nyers cellulóz ligninmentesítésére
US08/225,353 US5587049A (en) 1992-01-31 1994-04-08 Process for delignifying raw cellulosic material impregnated with monopersulphuric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI920192A IT1258844B (it) 1992-01-31 1992-01-31 Procedimento per la delignificazione di cellulosa grezza

Publications (3)

Publication Number Publication Date
ITMI920192A0 ITMI920192A0 (it) 1992-01-31
ITMI920192A1 true ITMI920192A1 (it) 1993-07-31
IT1258844B IT1258844B (it) 1996-02-29

Family

ID=11361763

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI920192A IT1258844B (it) 1992-01-31 1992-01-31 Procedimento per la delignificazione di cellulosa grezza

Country Status (15)

Country Link
US (1) US5587049A (it)
EP (1) EP0553649B1 (it)
JP (1) JP3325324B2 (it)
AT (1) ATE143073T1 (it)
CA (1) CA2088281A1 (it)
CZ (1) CZ282570B6 (it)
DE (1) DE69304723T2 (it)
FI (1) FI111386B (it)
HR (1) HRP930060B1 (it)
HU (1) HU216143B (it)
IT (1) IT1258844B (it)
NO (1) NO300511B1 (it)
PL (1) PL181248B1 (it)
SI (1) SI9300044B (it)
SK (1) SK281308B6 (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19704054C2 (de) * 1997-02-04 2000-08-10 Stockhausen Chem Fab Gmbh Verfahren zur Herstellung von Faserstoffen mit verbesserten Eigenschaften
KR20020047239A (ko) 1999-10-15 2002-06-21 패트릭 알 그루버 종자 유래 섬유질 및 그의 용도
SE525064C2 (sv) * 2003-04-17 2004-11-23 Kvaerner Pulping Tech Metod för impregnering av flis med sur behandlingsvätska i samband med sulfatkokning av cellulosamassa
JP4967451B2 (ja) * 2006-05-17 2012-07-04 三菱瓦斯化学株式会社 漂白パルプの製造方法
JP4997905B2 (ja) * 2006-10-10 2012-08-15 三菱瓦斯化学株式会社 印刷用塗被紙の製造方法
CN115044178B (zh) * 2022-05-05 2023-05-26 保定盖尔医疗科技有限公司 一种香蒲草长纤维/聚乳酸复合材料及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404061A (en) * 1981-08-17 1983-09-13 International Paper Company Bleaching of lignocellulosic materials with monopersulfuric acid or its salts
US4552616A (en) * 1982-10-20 1985-11-12 New Fibers International Inc. Pulping process pretreatment using a lower alkanolamine in the presence of ammonium hydroxide
US5004523A (en) * 1989-03-30 1991-04-02 The United States Of America As Represented By The Secretary Of Agriculture Delignification of lignocellulosic materials with monoperoxysulfuric acid
FI82079C (fi) * 1989-04-27 1993-05-11 Poeyry Jaakko & Co Oy Foerfarande och anordning foer kontinuerlig kokning av cellulosa
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
US5118389A (en) * 1990-07-06 1992-06-02 Ici Canada Inc. Two-stage peroxide bleaching process using different amounts of peroxide on different portions of mechanical pulp

Also Published As

Publication number Publication date
EP0553649B1 (en) 1996-09-18
HRP930060B1 (en) 1999-06-30
PL181248B1 (pl) 2001-06-29
SK4793A3 (en) 1993-09-09
CZ10893A3 (en) 1994-02-16
FI930412A (fi) 1993-08-01
HU9300246D0 (en) 1993-09-28
SI9300044B (en) 2001-02-28
SI9300044A (en) 1993-09-30
NO930307D0 (no) 1993-01-29
NO930307L (no) 1993-08-02
US5587049A (en) 1996-12-24
SK281308B6 (sk) 2001-02-12
JPH05247866A (ja) 1993-09-24
ITMI920192A0 (it) 1992-01-31
CZ282570B6 (cs) 1997-08-13
HU216143B (hu) 1999-04-28
CA2088281A1 (en) 1993-08-01
FI111386B (fi) 2003-07-15
HUT67451A (en) 1995-04-28
ATE143073T1 (de) 1996-10-15
JP3325324B2 (ja) 2002-09-17
FI930412A0 (fi) 1993-01-29
PL297562A1 (en) 1993-08-23
IT1258844B (it) 1996-02-29
DE69304723D1 (de) 1996-10-24
DE69304723T2 (de) 1997-01-30
NO300511B1 (no) 1997-06-09
HRP930060A2 (en) 1994-08-31
EP0553649A1 (en) 1993-08-04

Similar Documents

Publication Publication Date Title
DE3782602T2 (de) Verfahren zur behandlung einer papierpulpe mit einer enzymatischen loesung.
DE69005308T2 (de) Verfahren zur herstellung von lignocellulosepulpe.
CA2160430A1 (en) Method of treating cellulose pulps
BR9101586A (pt) Processo para reducao da quantidade de compostos organicos halogenados no licor servido da deslignificacao e alvejamento de polpa contendo ligno-celulose quimicamente digerida
ITMI920192A1 (it) Procedimento per la delignificazione di cellulosa grezza
ATE112595T1 (de) Verfahren zur herstellung von aufschlusslösungen mit hoher sulfidität für das kochen von sulfatpulpe.
ZA829421B (en) Process for bleaching cellulosic fibre materials using oligomers of phosphonic acid esters as stabilisers in alkaline, peroxide-containing bleaching liquors
ATA38488A (de) Verfahren zur behandlung von zellulosefasern sowie faserzementprodukte und mischungen zu ihrer herstellung
DE351330T1 (de) Verfahren zur herstellung von gebleichten chemithermomechanischen zellstoffen.
ES8404442A1 (es) Procedimiento para el tratamiento alcali-seco de textiles de fibras celulosicas.
FI871730A (fi) Foerfarande foer framstaellning av hemicellulosahydrolysat och specialmassa.
SE9500926D0 (sv) Förfarande för blekning av massa
DE3674859D1 (de) Verfahren zur delignifizierung von zellulosematerialien.
DE59704964D1 (de) Verfahren zur Herstellung von gebleichten Spezialzellstoffen

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970123