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SE7907557L - PROCEDURE FOR HEART LOSS REDUCTION IN MANUFACTURING CELLULOSAMASSES OF LIGNOCELLULOSAMENTAL - Google Patents

PROCEDURE FOR HEART LOSS REDUCTION IN MANUFACTURING CELLULOSAMASSES OF LIGNOCELLULOSAMENTAL

Info

Publication number
SE7907557L
SE7907557L SE7907557A SE7907557A SE7907557L SE 7907557 L SE7907557 L SE 7907557L SE 7907557 A SE7907557 A SE 7907557A SE 7907557 A SE7907557 A SE 7907557A SE 7907557 L SE7907557 L SE 7907557L
Authority
SE
Sweden
Prior art keywords
pulp
lignocellulosamental
cellulosamasses
procedure
manufacturing
Prior art date
Application number
SE7907557A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE418628B (en
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/en
Priority to JP11824580A priority patent/JPS5643496A/en
Priority to BR8005524A priority patent/BR8005524A/en
Priority to FI802742A priority patent/FI68680C/en
Priority to CH6700/80A priority patent/CH651083A5/en
Priority to NO802658A priority patent/NO155498C/en
Priority to DE3034042A priority patent/DE3034042C2/en
Priority to AU62195/80A priority patent/AU524841B2/en
Priority to AT0457680A priority patent/AT374512B/en
Priority to CA000360196A priority patent/CA1157209A/en
Priority to FR8019697A priority patent/FR2465026A1/en
Publication of SE7907557L publication Critical patent/SE7907557L/en
Publication of SE418628B publication Critical patent/SE418628B/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
    • D21C9/08—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)

Abstract

16-242 PROCESS AND APPARATUS FOR THE DERESINATION OF CELLULOSE PULP A process and apparatus are provided for the deresination of cellulose pulp, by adjusting the pulp concentration to within the range from about 15 to about 35%; adding sufficient alkali to the pulp to bring the amount of alkali, calculated as NaON, within the range from about 2 to about 17 g/kg of water accompanying the pulp; subjecting the pulp to a mild, mechanical working in the bite of twin interdigitated rotating screws at an energy input of from 8 to 100 kWh per ton of pulp; removing and reacting the pulp with the added alkali for from about 0.1 to about 5 hours, and then washing out dissolved resin from the pulp.
SE7907557A 1979-09-12 1979-09-12 PROCEDURE FOR HEART LOSS REDUCTION IN MANUFACTURING CELLULOSAMASSES OF LIGNOCELLULOSAMENTAL SE418628B (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE7907557A SE418628B (en) 1979-09-12 1979-09-12 PROCEDURE FOR HEART LOSS REDUCTION IN MANUFACTURING CELLULOSAMASSES OF LIGNOCELLULOSAMENTAL
JP11824580A JPS5643496A (en) 1979-09-12 1980-08-26 Reduction of resin content in producing cellulose pulp from lignocellulose material
BR8005524A BR8005524A (en) 1979-09-12 1980-08-29 PROCESS AND APPARATUS FOR REDUCING RESIN CONTENT IN THE PREPARATION OF CELLULOSE PULPS
FI802742A FI68680C (en) 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 (en) 1979-09-12 1980-09-09 Process for reducing the resin content in the preparation of bleached or unbleached cellulose pulp from lignocellulosic material.
DE3034042A DE3034042C2 (en) 1979-09-12 1980-09-10 Process for reducing the resin content in the production of cellulose pulp from lignocellulosic material
AU62195/80A AU524841B2 (en) 1979-09-12 1980-09-10 Cellulose pulp resin content reduction
AT0457680A AT374512B (en) 1979-09-12 1980-09-11 METHOD AND DEVICE FOR REDUCING THE RESIN CONTENT IN THE PRODUCTION OF CELL MATERIALS FROM MATERIALS CONTAINING LIGNOCELLULOSE
CA000360196A CA1157209A (en) 1979-09-12 1980-09-12 Process and apparatus for the deresination of cellulose pulp
FR8019697A FR2465026A1 (en) 1979-09-12 1980-09-12 PROCESS FOR REDUCING THE RESIN CONTENT DURING THE PREPARATION OF CELLULOSE PASTES FROM LIGNOCELLULOSIC MATERIALS AND APPARATUS FOR IMPLEMENTING SAME

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7907557A SE418628B (en) 1979-09-12 1979-09-12 PROCEDURE FOR HEART LOSS REDUCTION IN MANUFACTURING CELLULOSAMASSES OF LIGNOCELLULOSAMENTAL

Publications (2)

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

Family

ID=20338805

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7907557A SE418628B (en) 1979-09-12 1979-09-12 PROCEDURE FOR HEART LOSS REDUCTION IN MANUFACTURING CELLULOSAMASSES OF LIGNOCELLULOSAMENTAL

Country Status (11)

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

Families Citing this family (5)

* 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 (en) * 1984-10-15 1986-04-16 Kamyr Ab TREATMENT OF HOG EXCHANGE MASS
SE502321C2 (en) * 1994-03-04 1995-10-02 Kvaerner Pulping Tech Process of ozone bleaching of sulphite pulp
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 (en) 2010-07-13 2010-07-13 Olli Joutsimo Improved chemical pulp manufacturing process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE84946C (en) *
DE363666C (en) * 1918-01-23 1922-11-11 Carl G Schwalbe Dr Process for removing resin, grease, wax and the like Like. Made from vegetable matter, especially wood and wood pulp
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

Also Published As

Publication number Publication date
FI68680B (en) 1985-06-28
BR8005524A (en) 1981-03-17
FI802742A (en) 1981-03-13
CH651083A5 (en) 1985-08-30
FR2465026A1 (en) 1981-03-20
FI68680C (en) 1985-10-10
JPS5643496A (en) 1981-04-22
DE3034042C2 (en) 1985-08-22
AU524841B2 (en) 1982-10-07
SE418628B (en) 1981-06-15
NO155498B (en) 1986-12-29
DE3034042A1 (en) 1981-04-02
AT374512B (en) 1984-05-10
FR2465026B1 (en) 1983-08-19
JPH0114357B2 (en) 1989-03-10
AU6219580A (en) 1981-03-19
CA1157209A (en) 1983-11-22
NO802658L (en) 1981-03-13
ATA457680A (en) 1983-09-15
NO155498C (en) 1994-11-21

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