AR243945A1 - High efficiency chlorine dioxide pulp bleaching process - Google Patents

High efficiency chlorine dioxide pulp bleaching process

Info

Publication number
AR243945A1
AR243945A1 AR90318139A AR31813990A AR243945A1 AR 243945 A1 AR243945 A1 AR 243945A1 AR 90318139 A AR90318139 A AR 90318139A AR 31813990 A AR31813990 A AR 31813990A AR 243945 A1 AR243945 A1 AR 243945A1
Authority
AR
Argentina
Prior art keywords
high efficiency
chlorine dioxide
bleaching process
pulp bleaching
efficiency chlorine
Prior art date
Application number
AR90318139A
Other languages
Spanish (es)
Original Assignee
Univ North Carolina State
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=AR243945(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Univ North Carolina State filed Critical Univ North Carolina State
Application granted granted Critical
Publication of AR243945A1 publication Critical patent/AR243945A1/en

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)
AR90318139A 1989-10-19 1990-10-19 High efficiency chlorine dioxide pulp bleaching process AR243945A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
AR243945A1 true AR243945A1 (en) 1993-09-30

Family

ID=23682296

Family Applications (1)

Application Number Title Priority Date Filing Date
AR90318139A AR243945A1 (en) 1989-10-19 1990-10-19 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
PT1880053T (en) * 2005-05-04 2019-11-04 Novozymes As 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
EP0496782A4 (en) 1993-02-03
CA2069322A1 (en) 1991-04-20
EP0496782A1 (en) 1992-08-05
PL287415A1 (en) 1991-09-23
DE69026105D1 (en) 1996-04-25
EP0496782B1 (en) 1996-03-20
DE69026105T2 (en) 1996-09-26
ES2085358T3 (en) 1996-06-01
PL164745B1 (en) 1994-10-31
WO1991005909A1 (en) 1991-05-02
MX172853B (en) 1994-01-17
AU6537690A (en) 1991-05-16
ZA908341B (en) 1991-08-28
NZ235754A (en) 1993-03-26
CN1052157A (en) 1991-06-12

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