SE8008574L - Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial - Google Patents

Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial

Info

Publication number
SE8008574L
SE8008574L SE8008574A SE8008574A SE8008574L SE 8008574 L SE8008574 L SE 8008574L SE 8008574 A SE8008574 A SE 8008574A SE 8008574 A SE8008574 A SE 8008574A SE 8008574 L SE8008574 L SE 8008574L
Authority
SE
Sweden
Prior art keywords
pulp
range
amount
bleaching agent
alkali
Prior art date
Application number
SE8008574A
Other languages
Unknown language ( )
English (en)
Other versions
SE424884B (sv
Inventor
H E Ostman
S B Lindqvist
Original Assignee
Mo Och Domsjoe Ab
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 Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Priority to SE8008574A priority Critical patent/SE424884B/sv
Priority to AU77888/81A priority patent/AU529326B2/en
Priority to US06/326,866 priority patent/US4444621A/en
Priority to FR8122712A priority patent/FR2495655A1/fr
Priority to DE3148101A priority patent/DE3148101C2/de
Priority to FI813896A priority patent/FI69657C/sv
Priority to JP56196181A priority patent/JPS57121692A/ja
Priority to NO814163A priority patent/NO156905C/no
Priority to CH7774/81A priority patent/CH655965A5/de
Priority to CA000391674A priority patent/CA1162358A/en
Publication of SE8008574L publication Critical patent/SE8008574L/sv
Publication of SE424884B publication Critical patent/SE424884B/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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
SE8008574A 1980-11-21 1980-12-05 Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial SE424884B (sv)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE8008574A SE424884B (sv) 1980-12-05 1980-12-05 Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial
AU77888/81A AU529326B2 (en) 1980-12-05 1981-11-25 Reducing resin content of pulp
US06/326,866 US4444621A (en) 1980-11-21 1981-12-03 Process and apparatus for the deresination and brightness improvement of cellulose pulp
FR8122712A FR2495655A1 (fr) 1980-11-21 1981-12-04 Procede pour reduire la teneur en resine dans la preparation de pates de cellulose provenant de matieres lignocellulosiques
DE3148101A DE3148101C2 (de) 1980-12-05 1981-12-04 Verfahren zur Reduzierung des Harzgehalts bei der Herstellung von Zellulosepulpe
FI813896A FI69657C (sv) 1980-12-05 1981-12-04 Förfarande för hartshaltsminskning vid framställning av cellulosamasso r ur lignocellulosamaterial
JP56196181A JPS57121692A (en) 1980-12-05 1981-12-04 Reduction of resin content in producing cellulose pulp from lignocellulose material
NO814163A NO156905C (no) 1980-12-05 1981-12-04 Fremgangsmaate for aa minske harpiksinnholdet ved fremstilling av cellulosemasse fra lignocellulosematerialer.
CH7774/81A CH655965A5 (de) 1980-12-05 1981-12-04 Verfahren fuer die reduktion des harzgehaltes waehrend der herstellung von zellulose-papierbreien aus lignozellulose-materialien.
CA000391674A CA1162358A (en) 1980-12-05 1981-12-07 Process and apparatus for the deresination and brightness improvement of cellulose pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8008574A SE424884B (sv) 1980-12-05 1980-12-05 Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial

Publications (2)

Publication Number Publication Date
SE8008574L true SE8008574L (sv) 1982-06-06
SE424884B SE424884B (sv) 1982-08-16

Family

ID=20342404

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8008574A SE424884B (sv) 1980-11-21 1980-12-05 Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial

Country Status (8)

Country Link
JP (1) JPS57121692A (sv)
AU (1) AU529326B2 (sv)
CA (1) CA1162358A (sv)
CH (1) CH655965A5 (sv)
DE (1) DE3148101C2 (sv)
FI (1) FI69657C (sv)
NO (1) NO156905C (sv)
SE (1) SE424884B (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930980A (ja) * 1982-08-12 1984-02-18 王子製紙株式会社 リグノセルロ−ス物質の漂白方法
SE502321C2 (sv) * 1994-03-04 1995-10-02 Kvaerner Pulping Tech Förfarande vid ozonblekning av sulfitmassa
FI20070126A0 (sv) 2006-09-08 2007-02-13 Linde Ag Förfarande för avhartsning av massa och användning av koldioxid eller (bi)karbonat för detta

Also Published As

Publication number Publication date
NO156905C (no) 1987-12-16
JPS57121692A (en) 1982-07-29
FI69657C (sv) 1990-10-31
FI69657B (fi) 1985-11-29
DE3148101A1 (de) 1982-08-12
DE3148101C2 (de) 1985-11-07
NO156905B (no) 1987-09-07
AU7788881A (en) 1982-06-17
CH655965A5 (de) 1986-05-30
FI813896L (fi) 1982-06-06
JPH0114358B2 (sv) 1989-03-10
CA1162358A (en) 1984-02-21
AU529326B2 (en) 1983-06-02
NO814163L (no) 1982-06-07
SE424884B (sv) 1982-08-16

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