CA1133660A - Methode de preparation de fibres de cellulose a partir du bois de pin - Google Patents

Methode de preparation de fibres de cellulose a partir du bois de pin

Info

Publication number
CA1133660A
CA1133660A CA311,653A CA311653A CA1133660A CA 1133660 A CA1133660 A CA 1133660A CA 311653 A CA311653 A CA 311653A CA 1133660 A CA1133660 A CA 1133660A
Authority
CA
Canada
Prior art keywords
weight
peroxide
pine
cellulose fibres
fibre
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
CA311,653A
Other languages
English (en)
Inventor
Horst Kruger
Werner Traser
Johann-Peter Franzreb
Heinrich Klein
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.)
SCHWABISCHE ZELLSTOFF AG
Evonik Operations GmbH
Original Assignee
SCHWABISCHE ZELLSTOFF AG
Degussa GmbH
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 SCHWABISCHE ZELLSTOFF AG, Degussa GmbH filed Critical SCHWABISCHE ZELLSTOFF AG
Application granted granted Critical
Publication of CA1133660A publication Critical patent/CA1133660A/fr
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)
  • Sanitary Thin Papers (AREA)
  • Cosmetics (AREA)
CA311,653A 1977-09-20 1978-09-20 Methode de preparation de fibres de cellulose a partir du bois de pin Expired CA1133660A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2742262A DE2742262C2 (de) 1977-09-20 1977-09-20 Verfahren zur Herstellung eines mittel- bis hochviskosen Nadelholz-Sulfitzellstoffs
DEP2742262.4 1977-09-20

Publications (1)

Publication Number Publication Date
CA1133660A true CA1133660A (fr) 1982-10-19

Family

ID=6019413

Family Applications (1)

Application Number Title Priority Date Filing Date
CA311,653A Expired CA1133660A (fr) 1977-09-20 1978-09-20 Methode de preparation de fibres de cellulose a partir du bois de pin

Country Status (16)

Country Link
JP (1) JPS5455606A (fr)
AR (1) AR218936A1 (fr)
AT (1) AT367812B (fr)
BE (1) BE870607A (fr)
BR (1) BR7806050A (fr)
CA (1) CA1133660A (fr)
CH (1) CH638003A5 (fr)
DE (1) DE2742262C2 (fr)
ES (1) ES472687A1 (fr)
FI (1) FI68273C (fr)
FR (1) FR2403418A1 (fr)
GB (1) GB2005743B (fr)
IT (1) IT1109111B (fr)
NO (1) NO153978C (fr)
SE (1) SE7809831L (fr)
ZA (1) ZA785356B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520397A1 (fr) * 1982-01-28 1983-07-29 Centre Tech Ind Papier Procede pour le traitement de pates papetieres chimiques
DE4031597A1 (de) * 1990-10-05 1992-04-09 Sueddeutsche Kalkstickstoff Verfahren zur chlorarmen bleiche und delignifizierung von zellstoff
US6398908B1 (en) 1991-04-30 2002-06-04 Eka Nobel Ab Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
SE470065C (sv) * 1991-04-30 1996-01-15 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
DE102007036376A1 (de) * 2007-07-31 2009-02-05 Voith Patent Gmbh Gebleichter Faserstoff

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026068A (en) * 1929-09-11 1935-12-31 Du Pont Process for the improvement of cellulose
DE753531C (de) * 1938-11-09 1953-05-18 Degussa Verfahren zum Bleichen von Zellstoff

Also Published As

Publication number Publication date
ZA785356B (en) 1979-09-26
FR2403418B1 (fr) 1982-07-02
IT7869162A0 (it) 1978-09-19
GB2005743A (en) 1979-04-25
NO153978B (no) 1986-03-17
NO782820L (no) 1979-03-21
FR2403418A1 (fr) 1979-04-13
SE7809831L (sv) 1979-03-21
NO153978C (no) 1986-06-25
DE2742262C2 (de) 1982-06-09
BE870607A (fr) 1979-03-19
ATA675678A (de) 1981-12-15
AR218936A1 (es) 1980-07-15
FI68273B (fi) 1985-04-30
FI68273C (fi) 1985-08-12
IT1109111B (it) 1985-12-16
AT367812B (de) 1982-08-10
DE2742262A1 (de) 1979-03-29
ES472687A1 (es) 1979-02-16
JPS5455606A (en) 1979-05-02
GB2005743B (en) 1982-03-03
CH638003A5 (de) 1983-08-31
FI782869A (fi) 1979-03-21
BR7806050A (pt) 1979-05-02

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Legal Events

Date Code Title Description
MKEX Expiry