ZA908340B - Chlorine dioxide pulp bleaching process using sequential chlorine addition - Google Patents

Chlorine dioxide pulp bleaching process using sequential chlorine addition

Info

Publication number
ZA908340B
ZA908340B ZA908340A ZA908340A ZA908340B ZA 908340 B ZA908340 B ZA 908340B ZA 908340 A ZA908340 A ZA 908340A ZA 908340 A ZA908340 A ZA 908340A ZA 908340 B ZA908340 B ZA 908340B
Authority
ZA
South Africa
Prior art keywords
chlorine
sequential
bleaching process
pulp bleaching
addition
Prior art date
Application number
ZA908340A
Inventor
Hou-Min Chang
Chang Hou-Min
Hasan Jameel
Jameel Hasan
Geoffrey Eugene Seger
Eugene Seger Geoffrey
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
Application filed by Univ North Carolina State filed Critical Univ North Carolina State
Publication of ZA908340B publication Critical patent/ZA908340B/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)
ZA908340A 1989-10-19 1990-10-18 Chlorine dioxide pulp bleaching process using sequential chlorine addition ZA908340B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42408689A 1989-10-19 1989-10-19

Publications (1)

Publication Number Publication Date
ZA908340B true ZA908340B (en) 1991-08-28

Family

ID=23681388

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA908340A ZA908340B (en) 1989-10-19 1990-10-18 Chlorine dioxide pulp bleaching process using sequential chlorine addition

Country Status (7)

Country Link
EP (1) EP0496827A1 (en)
CN (1) CN1051951A (en)
AU (1) AU6730390A (en)
CA (1) CA2067750A1 (en)
PL (1) PL287416A1 (en)
WO (1) WO1991005910A1 (en)
ZA (1) ZA908340B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5850026A (en) 1996-07-03 1998-12-15 Cargill, Incorporated Canola oil having increased oleic acid and decreased linolenic acid content
CN1100177C (en) * 2000-07-20 2003-01-29 华南理工大学 High-temp ClO2 bleaching method of sulfated wood pulp
SE532370C2 (en) * 2008-02-28 2009-12-29 Metso Paper Inc Method of bleaching a pulp
WO2012084842A1 (en) 2010-12-22 2012-06-28 Akzo Nobel Chemicals International B.V. Process for improving chlorine dioxide bleaching of pulp
CN105008616B (en) 2013-02-08 2020-03-03 Gp 纤维素股份有限公司 Softwood kraft fibers having improved α -cellulose content and their use in the manufacture of chemical cellulose products
FR3062138B1 (en) * 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses PROCESS FOR WHITENING A PAPER PULP
CN106958161B (en) * 2017-03-13 2018-06-01 广西大学 A kind of paper pulp high temperature ClO 2 bleaching section exhaust heat recovering method

Family Cites Families (2)

* 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
FR2432574A1 (en) * 1978-08-01 1980-02-29 Europeen Cellulose PROCESS FOR BLEACHING PAPER PULP

Also Published As

Publication number Publication date
WO1991005910A1 (en) 1991-05-02
EP0496827A1 (en) 1992-08-05
PL287416A1 (en) 1991-08-12
AU6730390A (en) 1991-05-16
CA2067750A1 (en) 1991-04-20
CN1051951A (en) 1991-06-05

Similar Documents

Publication Publication Date Title
AR243946A1 (en) Process for the chlorine-free bleaching of pulp
EP0423817A3 (en) Chlorine dioxide generator
NZ224019A (en) Process for preparing chlorine dioxide
HK174596A (en) Bleaching composition
ZA924351B (en) Ozone bleaching process
GB8605733D0 (en) Bleaching fabrics
SG43007A1 (en) Bleaching composition
GB8620222D0 (en) Peroxide bleaching
GB2248075B (en) Chlorine-free process for bleaching pulp
ZA908340B (en) Chlorine dioxide pulp bleaching process using sequential chlorine addition
EP0443640A3 (en) Bleaching process and bleach compositions
AR243945A1 (en) High efficiency chlorine dioxide pulp bleaching process
ZA908967B (en) Bleaching composition
ZA917491B (en) Pulp bleaching solution.
AU1467892A (en) High efficiency chlorine dioxide pulp bleaching process
GB8607063D0 (en) Washing & bleaching process
AU2413088A (en) Pulp bleaching process
LTIP754A (en) Process for bleaching of cellulose excluding the use of chlorine
ZA887477B (en) Process for bleaching mechanical pulp
GB9319811D0 (en) Wood pulp bleaching process
ZA938707B (en) Bleaching process
AU1168892A (en) Process for bleaching pulp
GB9114611D0 (en) Bleaching process
GB9213540D0 (en) Bleaching process
GB9001491D0 (en) Bleaching process and bleach compositions