CA1157209A - Process and apparatus for the deresination of cellulose pulp - Google Patents

Process and apparatus for the deresination of cellulose pulp

Info

Publication number
CA1157209A
CA1157209A CA000360196A CA360196A CA1157209A CA 1157209 A CA1157209 A CA 1157209A CA 000360196 A CA000360196 A CA 000360196A CA 360196 A CA360196 A CA 360196A CA 1157209 A CA1157209 A CA 1157209A
Authority
CA
Canada
Prior art keywords
pulp
alkali
process according
cellulose
screw
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA000360196A
Other languages
English (en)
French (fr)
Inventor
Jonas A. I. Lindahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo 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 Domsjo AB filed Critical Mo och Domsjo AB
Application granted granted Critical
Publication of CA1157209A publication Critical patent/CA1157209A/en
Expired legal-status Critical Current

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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
CA000360196A 1979-09-12 1980-09-12 Process and apparatus for the deresination of cellulose pulp Expired CA1157209A (en)

Applications Claiming Priority (2)

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
SE7907557-8 1979-09-12

Publications (1)

Publication Number Publication Date
CA1157209A true CA1157209A (en) 1983-11-22

Family

ID=20338805

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000360196A Expired CA1157209A (en) 1979-09-12 1980-09-12 Process and apparatus for the deresination of cellulose pulp

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
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

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
SE8405128L (sv) * 1984-10-15 1986-04-16 Kamyr Ab Behandling av hogutbytesmassa
SE502321C2 (sv) * 1994-03-04 1995-10-02 Kvaerner Pulping Tech Förfarande vid ozonblekning av sulfitmassa
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
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

Also Published As

Publication number Publication date
JPS5643496A (en) 1981-04-22
FI68680C (fi) 1985-10-10
NO802658L (no) 1981-03-13
FR2465026B1 (fi) 1983-08-19
ATA457680A (de) 1983-09-15
AU6219580A (en) 1981-03-19
FI68680B (fi) 1985-06-28
NO155498C (no) 1994-11-21
AT374512B (de) 1984-05-10
FI802742A (fi) 1981-03-13
DE3034042A1 (de) 1981-04-02
FR2465026A1 (fr) 1981-03-20
AU524841B2 (en) 1982-10-07
SE7907557L (sv) 1981-03-13
SE418628B (sv) 1981-06-15
CH651083A5 (en) 1985-08-30
BR8005524A (pt) 1981-03-17
NO155498B (no) 1986-12-29
JPH0114357B2 (fi) 1989-03-10
DE3034042C2 (de) 1985-08-22

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Legal Events

Date Code Title Description
MKEX Expiry