AU6537690A - High efficiency chlorine dioxide pulp bleaching process - Google Patents

High efficiency chlorine dioxide pulp bleaching process

Info

Publication number
AU6537690A
AU6537690A AU65376/90A AU6537690A AU6537690A AU 6537690 A AU6537690 A AU 6537690A AU 65376/90 A AU65376/90 A AU 65376/90A AU 6537690 A AU6537690 A AU 6537690A AU 6537690 A AU6537690 A AU 6537690A
Authority
AU
Australia
Prior art keywords
high efficiency
chlorine dioxide
bleaching process
pulp bleaching
efficiency chlorine
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
AU65376/90A
Inventor
Hou-Min Chang
Hasan Jameel
Geoffrey Eugene Seger
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
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=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU6537690(A) "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
Publication of AU6537690A publication Critical patent/AU6537690A/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
    • D21C9/12—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)
  • Noodles (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
AU65376/90A 1989-10-19 1990-10-17 High efficiency chlorine dioxide pulp bleaching process Abandoned AU6537690A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42434789A 1989-10-19 1989-10-19
US424347 1989-10-19

Publications (1)

Publication Number Publication Date
AU6537690A true AU6537690A (en) 1991-05-16

Family

ID=23682296

Family Applications (1)

Application Number Title Priority Date Filing Date
AU65376/90A Abandoned AU6537690A (en) 1989-10-19 1990-10-17 High efficiency chlorine dioxide pulp bleaching process

Country Status (12)

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

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 (en) * 1999-04-27 2011-11-01 process for bleaching low consistency chemical pulps.
SE524896C2 (en) * 2003-03-07 2004-10-19 Kvaerner Pulping Tech Bleaching of cellulose pulp with chlorine dioxide in two phases with heating between the phases
EP1880053B1 (en) * 2005-05-04 2019-07-31 Novozymes North America, Inc. Chlorine dioxide treatment compositions and processes
FI122626B (en) * 2006-03-31 2012-04-30 Laennen Tutkimus Western Res Inc Oy Chemical pulp bleaching process
CN103469663B (en) * 2013-08-13 2016-05-04 广西大学 A kind of by response surface method optimization paper pulp ClO 2 bleaching method
FR3062138B1 (en) * 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses PROCESS FOR WHITENING A PAPER PULP
CN111979818A (en) * 2020-08-07 2020-11-24 齐鲁工业大学 Sulfate wood pulp short-procedure ECF bleaching process X/Z/D-EOP-D or 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 (en) * 1978-08-01 1980-02-29 Europeen Cellulose PROCESS FOR BLEACHING PAPER PULP
SE8106334L (en) * 1981-10-27 1983-04-28 Sunds Defibrator SETTLE TO TREAT CELLULOSIC 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 (en) 1996-03-20
CN1052157A (en) 1991-06-12
ES2085358T3 (en) 1996-06-01
MX172853B (en) 1994-01-17
AR243945A1 (en) 1993-09-30
PL164745B1 (en) 1994-10-31
DE69026105T2 (en) 1996-09-26
NZ235754A (en) 1993-03-26
EP0496782A4 (en) 1993-02-03
EP0496782A1 (en) 1992-08-05
DE69026105D1 (en) 1996-04-25

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