SE418628B - Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial - Google Patents

Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial

Info

Publication number
SE418628B
SE418628B SE7907557A SE7907557A SE418628B SE 418628 B SE418628 B SE 418628B SE 7907557 A SE7907557 A SE 7907557A SE 7907557 A SE7907557 A SE 7907557A SE 418628 B SE418628 B SE 418628B
Authority
SE
Sweden
Prior art keywords
pulp
alkali
concentration
mass
residence time
Prior art date
Application number
SE7907557A
Other languages
English (en)
Swedish (sv)
Other versions
SE7907557L (sv
Inventor
J A I Lindahl
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 SE7907557A priority Critical patent/SE418628B/sv
Priority to JP11824580A priority patent/JPS5643496A/ja
Priority to BR8005524A priority patent/BR8005524A/pt
Priority to FI802742A priority patent/FI68680C/fi
Priority to CH6700/80A priority patent/CH651083A5/de
Priority to NO802658A priority patent/NO155498C/no
Priority to DE3034042A priority patent/DE3034042C2/de
Priority to AU62195/80A priority patent/AU524841B2/en
Priority to AT0457680A priority patent/AT374512B/de
Priority to CA000360196A priority patent/CA1157209A/en
Priority to FR8019697A priority patent/FR2465026A1/fr
Publication of SE7907557L publication Critical patent/SE7907557L/
Publication of SE418628B publication Critical patent/SE418628B/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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
SE7907557A 1979-09-12 1979-09-12 Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial SE418628B (sv)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE7907557A SE418628B (sv) 1979-09-12 1979-09-12 Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial
JP11824580A JPS5643496A (en) 1979-09-12 1980-08-26 Reduction of resin content in producing cellulose pulp from lignocellulose material
BR8005524A BR8005524A (pt) 1979-09-12 1980-08-29 Processo e aparelho para reducao do teor de resina na preparacao de polpas de celulose
FI802742A FI68680C (fi) 1979-09-12 1980-09-01 Foerfarande foer hartshaltsminskning vid framstaellning av cellulosamassor ur lignocellulosamaterial
CH6700/80A CH651083A5 (en) 1979-09-12 1980-09-05 Process for reducing the resin content during the manufacture of cellulose paper pulps from lignocellulose materials
NO802658A NO155498C (no) 1979-09-12 1980-09-09 Fremgangsmåte for å redusere harpiksinnholdet ved fremstilling av blekede eller ublekede cellulosemasser fra lignocellulosemateriale.
DE3034042A DE3034042C2 (de) 1979-09-12 1980-09-10 Verfahren zur Reduzierung des Harzgehalts bei der Herstellung von Zellulosepulpe aus Lignozellulose-Material
AU62195/80A AU524841B2 (en) 1979-09-12 1980-09-10 Cellulose pulp resin content reduction
AT0457680A AT374512B (de) 1979-09-12 1980-09-11 Verfahren und vorrichtung zur verminderung des harzgehaltes bei der erzeugung von zellstoffen aus lignozellulosehaeltigen materialien
CA000360196A CA1157209A (en) 1979-09-12 1980-09-12 Process and apparatus for the deresination of cellulose pulp
FR8019697A FR2465026A1 (fr) 1979-09-12 1980-09-12 Procede pour reduire la teneur en resine pendant la preparation de pates de cellulose provenant de matieres lignocellulosiques et appareil pour sa mise en oeuvre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7907557A SE418628B (sv) 1979-09-12 1979-09-12 Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial

Publications (2)

Publication Number Publication Date
SE7907557L SE7907557L (sv) 1981-03-13
SE418628B true SE418628B (sv) 1981-06-15

Family

ID=20338805

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7907557A SE418628B (sv) 1979-09-12 1979-09-12 Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial

Country Status (11)

Country Link
JP (1) JPS5643496A (fi)
AT (1) AT374512B (fi)
AU (1) AU524841B2 (fi)
BR (1) BR8005524A (fi)
CA (1) CA1157209A (fi)
CH (1) CH651083A5 (fi)
DE (1) DE3034042C2 (fi)
FI (1) FI68680C (fi)
FR (1) FR2465026A1 (fi)
NO (1) NO155498C (fi)
SE (1) SE418628B (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922989A (en) * 1984-10-15 1990-05-08 Kamyr Ab Treatment of mechanical pulp to remove resin

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444621A (en) * 1980-11-21 1984-04-24 Mo Och Domsjo Aktiebolag Process and apparatus for the deresination and brightness improvement of cellulose pulp
SE502321C2 (sv) * 1994-03-04 1995-10-02 Kvaerner Pulping Tech Förfarande vid ozonblekning av sulfitmassa
US5728265A (en) * 1995-06-12 1998-03-17 Henkel Corporation Process for enhancing white liquor penetration into wood chips by contacting the chips with a mixture of the white liquor and a polymethylalkyl siloxane
FI20105799A0 (fi) 2010-07-13 2010-07-13 Olli Joutsimo Parantunut kemiallisen massan valmistusprosessi

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE84946C (fi) *
DE363666C (de) * 1918-01-23 1922-11-11 Carl G Schwalbe Dr Verfahren zur Entfernung von Harz, Fett, Wachs u. dgl. aus Pflanzenstoffen, insbesondere aus Holz und Holzzellstoffen
US2000562A (en) * 1933-07-06 1935-05-07 Patentaktiebolaget Grondal Ram Process of removing resin from sulphite cellulose
US2224159A (en) * 1937-09-27 1940-12-10 Rayonier Inc Process for purifying wood pulp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922989A (en) * 1984-10-15 1990-05-08 Kamyr Ab Treatment of mechanical pulp to remove resin

Also Published As

Publication number Publication date
NO155498B (no) 1986-12-29
NO155498C (no) 1994-11-21
FI68680B (fi) 1985-06-28
CA1157209A (en) 1983-11-22
BR8005524A (pt) 1981-03-17
DE3034042C2 (de) 1985-08-22
FR2465026A1 (fr) 1981-03-20
FR2465026B1 (fi) 1983-08-19
FI802742A (fi) 1981-03-13
AU6219580A (en) 1981-03-19
DE3034042A1 (de) 1981-04-02
JPS5643496A (en) 1981-04-22
SE7907557L (sv) 1981-03-13
AU524841B2 (en) 1982-10-07
JPH0114357B2 (fi) 1989-03-10
FI68680C (fi) 1985-10-10
ATA457680A (de) 1983-09-15
NO802658L (no) 1981-03-13
CH651083A5 (en) 1985-08-30
AT374512B (de) 1984-05-10

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