[go: up one dir, main page]

SE8106334L - Sett att behandla cellulosahaltigt material - Google Patents

Sett att behandla cellulosahaltigt material

Info

Publication number
SE8106334L
SE8106334L SE8106334A SE8106334A SE8106334L SE 8106334 L SE8106334 L SE 8106334L SE 8106334 A SE8106334 A SE 8106334A SE 8106334 A SE8106334 A SE 8106334A SE 8106334 L SE8106334 L SE 8106334L
Authority
SE
Sweden
Prior art keywords
phase
chlorine
settle
bleaching
cellulosic material
Prior art date
Application number
SE8106334A
Other languages
Unknown language ( )
English (en)
Inventor
G E Annergren
P-O Lindblad
L-A T Lindstrom
Original Assignee
Sunds Defibrator
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 Sunds Defibrator filed Critical Sunds Defibrator
Priority to SE8106334A priority Critical patent/SE8106334L/sv
Priority to AU88943/82A priority patent/AU539104B2/en
Priority to FI823625A priority patent/FI823625L/fi
Priority to BR8206194A priority patent/BR8206194A/pt
Priority to NO823559A priority patent/NO823559L/no
Priority to DE19823239811 priority patent/DE3239811A1/de
Publication of SE8106334L publication Critical patent/SE8106334L/sv

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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)
SE8106334A 1981-10-27 1981-10-27 Sett att behandla cellulosahaltigt material SE8106334L (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8106334A SE8106334L (sv) 1981-10-27 1981-10-27 Sett att behandla cellulosahaltigt material
AU88943/82A AU539104B2 (en) 1981-10-27 1982-09-30 Bleaching cellulose-containing material
FI823625A FI823625L (fi) 1981-10-27 1982-10-25 Saett att behandla cellulosahaltigt material
BR8206194A BR8206194A (pt) 1981-10-27 1982-10-25 Processo para alvejamento de material que contem celulose
NO823559A NO823559L (no) 1981-10-27 1982-10-26 Fremgangsmaate til behandling av celluloseholdig materiale
DE19823239811 DE3239811A1 (de) 1981-10-27 1982-10-27 Verfahren zur behandlung von zellulose enthaltendem material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8106334A SE8106334L (sv) 1981-10-27 1981-10-27 Sett att behandla cellulosahaltigt material

Publications (1)

Publication Number Publication Date
SE8106334L true SE8106334L (sv) 1983-04-28

Family

ID=20344893

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8106334A SE8106334L (sv) 1981-10-27 1981-10-27 Sett att behandla cellulosahaltigt material

Country Status (6)

Country Link
AU (1) AU539104B2 (sv)
BR (1) BR8206194A (sv)
DE (1) DE3239811A1 (sv)
FI (1) FI823625L (sv)
NO (1) NO823559L (sv)
SE (1) SE8106334L (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69026105T2 (de) * 1989-10-19 1996-09-26 Univ North Carolina Hochleistendes verfahren zum bleichen von zellstoff mit chlordioxyd
US5268075A (en) * 1989-10-19 1993-12-07 North Carolina State University High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process

Also Published As

Publication number Publication date
FI823625L (fi) 1983-04-28
BR8206194A (pt) 1983-09-20
DE3239811A1 (de) 1983-05-11
NO823559L (no) 1983-04-28
AU8894382A (en) 1983-05-19
AU539104B2 (en) 1984-09-13
FI823625A0 (fi) 1982-10-25

Similar Documents

Publication Publication Date Title
US5565109B1 (en) Hydantoin-enhanced halogen efficacy in pulp and paper applications
FR2552125B1 (fr) Procede pour le taitement des matieres cellulosiques par des agents oxydants
DE69022412D1 (de) Ozonbehandlung von mit chlordioxid/chlor chlorinierter pulpe.
ES8104147A1 (es) Procedimiento para reducir la demanda quimica de oxigeno en las aguas residuales
ES2073027T3 (es) Procedimiento medioambientalmente mejorado para blanquear materiales lignocelulosicos.
BR8503948A (pt) Processo para a realizacao de reacoes de cloracao substitutiva de compostos organicos por meio de cloro molecular na presenca de um produto clorado que serve de iniciador radicalar e iniciadores radicalares utilizados no referido processo
SE8106334L (sv) Sett att behandla cellulosahaltigt material
FR2256727A1 (en) Fluids recovering potato protein from amniotic liqs. - by flocculating with nascent sulphur dioxide
SE9101278D0 (sv) Method for treatment and recycling of pulp mill bleach plant effluents
FR2528041B1 (sv)
ES2040150T3 (es) Reduccion de compuestos organicos halogenados en liquido de blanqueo gastado.
DE69421609D1 (de) Hypochloritbleichmittelzusammensetzungen
DE3361660D1 (en) Process for recovering iodine from mother liquor and waste water containing organic iodides
BR9406105A (pt) Método de tratamento de água de processo contendo íons metálicos relativo ao alvejamento de polpa de material contendo ligno-celulose
SE8205241L (sv) Sett vid blekning av cellulosahaltigt material
GB1208055A (en) Sewage treatment
SE8202603L (sv) Sett for blekning av pa kemisk veg framstelld cellulosa
SE8605510L (sv) Sett vid tvettning av massa
DK0544880T3 (da) Fremgangsmåde til fremstilling af diacetylrhein
Hatanaka et al. Studies on Oxygen-Alkali Treatment of Wood Part 1 Influence of Process Variables in Oxygen Bleaching and its Effect on Pitch Trouble
SE9501891L (sv) Förfarande för blekning av kemisk, mekanisk, kemisk-mekanisk och/eller återvunnen massa med peroxid
ES2089567T3 (es) Un metodo para blanqueo de pasta con ozono.
SE9603630D0 (sv) Förfarande för blekning av massa
GB2017775A (en) Improved bleaching procedure
SE9300277L (sv) Förfarande för klorfri blekning av massa, varvid massan surgöres med ättiksyra vid behandlingen med komplexbildare

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8106334-9

Format of ref document f/p: F