PL287415A1 - Process for bleaching paper pulp with chlorine dioxide - Google Patents

Process for bleaching paper pulp with chlorine dioxide

Info

Publication number
PL287415A1
PL287415A1 PL90287415A PL28741590A PL287415A1 PL 287415 A1 PL287415 A1 PL 287415A1 PL 90287415 A PL90287415 A PL 90287415A PL 28741590 A PL28741590 A PL 28741590A PL 287415 A1 PL287415 A1 PL 287415A1
Authority
PL
Poland
Prior art keywords
chlorine dioxide
paper pulp
bleaching paper
bleaching
pulp
Prior art date
Application number
PL90287415A
Other versions
PL164745B1 (en
Original Assignee
Univ North Carolina
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=PL287415(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 filed Critical Univ North Carolina
Publication of PL287415A1 publication Critical patent/PL287415A1/en
Publication of PL164745B1 publication Critical patent/PL164745B1/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)
PL90287415A 1989-10-19 1990-10-19 Process for bleaching paper pulp with chlorine dioxide PL164745B1 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
PL287415A1 true PL287415A1 (en) 1991-09-23
PL164745B1 PL164745B1 (en) 1994-10-31

Family

ID=23682296

Family Applications (1)

Application Number Title Priority Date Filing Date
PL90287415A PL164745B1 (en) 1989-10-19 1990-10-19 Process for bleaching paper pulp with chlorine dioxide

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
CN1052157A (en) 1991-06-12
ZA908341B (en) 1991-08-28
AR243945A1 (en) 1993-09-30
EP0496782A4 (en) 1993-02-03
DE69026105D1 (en) 1996-04-25
CA2069322A1 (en) 1991-04-20
NZ235754A (en) 1993-03-26
AU6537690A (en) 1991-05-16
DE69026105T2 (en) 1996-09-26
MX172853B (en) 1994-01-17
EP0496782A1 (en) 1992-08-05
PL164745B1 (en) 1994-10-31
WO1991005909A1 (en) 1991-05-02
ES2085358T3 (en) 1996-06-01
EP0496782B1 (en) 1996-03-20

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