DE69026105D1 - Hochleistendes verfahren zum bleichen von zellstoff mit chlordioxyd - Google Patents

Hochleistendes verfahren zum bleichen von zellstoff mit chlordioxyd

Info

Publication number
DE69026105D1
DE69026105D1 DE69026105T DE69026105T DE69026105D1 DE 69026105 D1 DE69026105 D1 DE 69026105D1 DE 69026105 T DE69026105 T DE 69026105T DE 69026105 T DE69026105 T DE 69026105T DE 69026105 D1 DE69026105 D1 DE 69026105D1
Authority
DE
Germany
Prior art keywords
chlordioxyd
bleaching
cellular
performance method
performance
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.)
Revoked
Application number
DE69026105T
Other languages
English (en)
Other versions
DE69026105T2 (de
Inventor
Hou-Min Chang
Geoffrey Seger
Hasan Jameel
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.)
North Carolina State University
University of California
Original Assignee
North Carolina State University
University of California
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=23682296&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69026105(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by North Carolina State University, University of California filed Critical North Carolina State University
Application granted granted Critical
Publication of DE69026105D1 publication Critical patent/DE69026105D1/de
Publication of DE69026105T2 publication Critical patent/DE69026105T2/de
Anticipated expiration legal-status Critical
Revoked 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Noodles (AREA)
DE69026105T 1989-10-19 1990-10-17 Hochleistendes verfahren zum bleichen von zellstoff mit chlordioxyd Revoked DE69026105T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42434789A 1989-10-19 1989-10-19
PCT/US1990/005825 WO1991005909A1 (en) 1989-10-19 1990-10-17 High efficiency chlorine dioxide pulp bleaching process

Publications (2)

Publication Number Publication Date
DE69026105D1 true DE69026105D1 (de) 1996-04-25
DE69026105T2 DE69026105T2 (de) 1996-09-26

Family

ID=23682296

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69026105T Revoked DE69026105T2 (de) 1989-10-19 1990-10-17 Hochleistendes verfahren zum bleichen von zellstoff mit chlordioxyd

Country Status (12)

Country Link
EP (1) EP0496782B1 (de)
CN (1) CN1052157A (de)
AR (1) AR243945A1 (de)
AU (1) AU6537690A (de)
CA (1) CA2069322A1 (de)
DE (1) DE69026105T2 (de)
ES (1) ES2085358T3 (de)
MX (1) MX172853B (de)
NZ (1) NZ235754A (de)
PL (1) PL164745B1 (de)
WO (1) WO1991005909A1 (de)
ZA (1) ZA908341B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268075A (en) * 1989-10-19 1993-12-07 North Carolina State University High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process
BR9901291B1 (pt) * 1999-04-27 2011-11-01 processo para branqueamento de polpas quìmicas de baixa consistência.
SE524896C2 (sv) * 2003-03-07 2004-10-19 Kvaerner Pulping Tech Blekning av cellulosamassa med klordioxid i två faser med uppvärmning mellan faserna
EP1880053B1 (de) * 2005-05-04 2019-07-31 Novozymes North America, Inc. Chlordioxidbehandlungszusammensetzungen und verfahren
FI122626B (fi) * 2006-03-31 2012-04-30 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
CN103469663B (zh) * 2013-08-13 2016-05-04 广西大学 一种通过响应面法优化纸浆二氧化氯漂白方法
FR3062138B1 (fr) * 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Procede de blanchiment d'une pate a papier
CN111979818A (zh) * 2020-08-07 2020-11-24 齐鲁工业大学 一种硫酸盐木浆短程序ecf漂白工艺x/z/d-eop-d或x/d/z-eop-d

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433702A (en) * 1965-06-28 1969-03-18 Hooker Chemical Corp Woodpulp bleaching process
CA1004805A (en) * 1973-10-18 1977-02-08 Louis O. Torregrossa Non-neutral bleaching of pulp
FR2432574A1 (fr) * 1978-08-01 1980-02-29 Europeen Cellulose Procede de blanchiment de pate a papier
SE8106334L (sv) * 1981-10-27 1983-04-28 Sunds Defibrator Sett att behandla cellulosahaltigt material
CA1239253A (en) * 1983-05-20 1988-07-19 Louis O. Torregrossa Method of chlorine dioxide bleaching

Also Published As

Publication number Publication date
ZA908341B (en) 1991-08-28
WO1991005909A1 (en) 1991-05-02
PL287415A1 (en) 1991-09-23
CA2069322A1 (en) 1991-04-20
EP0496782B1 (de) 1996-03-20
CN1052157A (zh) 1991-06-12
ES2085358T3 (es) 1996-06-01
MX172853B (es) 1994-01-17
AR243945A1 (es) 1993-09-30
PL164745B1 (pl) 1994-10-31
DE69026105T2 (de) 1996-09-26
NZ235754A (en) 1993-03-26
EP0496782A4 (en) 1993-02-03
AU6537690A (en) 1991-05-16
EP0496782A1 (de) 1992-08-05

Similar Documents

Publication Publication Date Title
ATA132989A (de) Verfahren zur reduktion von farbstoffen
ATE150681T1 (de) Verfahren zum beschriften von diamanten
DE69026002D1 (de) Verfahren zum Erzeugen von Karten
DE3881860D1 (de) Verfahren zum herstellen von profilelementen.
DE3680281D1 (de) Verfahren zum verbinden von silikonbeschichtetem gewebe.
DE69132009T2 (de) Verfahren zum ziehen von einkristallen
ATA228688A (de) Verfahren zum dekorieren von gegenstaenden
DE3771670D1 (de) Verfahren zum entschleimen von triglyceridoelen.
DE3767747D1 (de) Verfahren zum bestimmen von abmessungen.
ATA228788A (de) Verfahren zum dekorieren von gegenstaenden
DE69315163T2 (de) Verfahren zum Aufbereiten von Zellmustern
DE3761556D1 (de) Verfahren zum aufwickeln von faeden.
DE69020304D1 (de) Verfahren zum Montieren von Reifen.
ATE131189T1 (de) Verfahren zum stabilisieren von polyolefinen.
DE69026105D1 (de) Hochleistendes verfahren zum bleichen von zellstoff mit chlordioxyd
DE58901845D1 (de) Verfahren zum festlegen.
DE68915189D1 (de) Verfahren zum Fleckenabweisendmachen von Polyamidmaterialien.
DE3771026D1 (de) Verfahren zum erzeugen von phosphatueberzuegen.
DE69228872D1 (de) Hochleistendes verfahren zum bleichen von zellstoff mit chlordioxyd
DE3766635D1 (de) Verfahren zum praegen von filmen.
DE59005005D1 (de) Verfahren zum auftragen von keramischem material.
DE68921757D1 (de) Verfahren zum Trocknen von Oberflächen.
ATA58789A (de) Verfahren zum herstellen von schuhwerk
DE3579818D1 (de) Verfahren zum faerben von materialbahnen.
ATE120181T1 (de) Verfahren zum behandeln von amiden.

Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation