FR2403418A1 - Procede de fabrication de cellulose de coniferes pour retraitement chimique ainsi que pour papiers speciaux - Google Patents

Procede de fabrication de cellulose de coniferes pour retraitement chimique ainsi que pour papiers speciaux

Info

Publication number
FR2403418A1
FR2403418A1 FR7824288A FR7824288A FR2403418A1 FR 2403418 A1 FR2403418 A1 FR 2403418A1 FR 7824288 A FR7824288 A FR 7824288A FR 7824288 A FR7824288 A FR 7824288A FR 2403418 A1 FR2403418 A1 FR 2403418A1
Authority
FR
France
Prior art keywords
well
manufacturing process
chemical treatment
special papers
cellulose manufacturing
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.)
Granted
Application number
FR7824288A
Other languages
English (en)
French (fr)
Other versions
FR2403418B1 (sv
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of FR2403418A1 publication Critical patent/FR2403418A1/fr
Application granted granted Critical
Publication of FR2403418B1 publication Critical patent/FR2403418B1/fr
Granted 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)
  • Cosmetics (AREA)
  • Sanitary Thin Papers (AREA)
FR7824288A 1977-09-20 1978-08-21 Procede de fabrication de cellulose de coniferes pour retraitement chimique ainsi que pour papiers speciaux Granted FR2403418A1 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2403418A1 true FR2403418A1 (fr) 1979-04-13
FR2403418B1 FR2403418B1 (sv) 1982-07-02

Family

ID=6019413

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824288A Granted FR2403418A1 (fr) 1977-09-20 1978-08-21 Procede de fabrication de cellulose de coniferes pour retraitement chimique ainsi que pour papiers speciaux

Country Status (16)

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

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

Citations (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

Patent Citations (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
FI782869A (fi) 1979-03-21
FI68273C (fi) 1985-08-12
CH638003A5 (de) 1983-08-31
DE2742262C2 (de) 1982-06-09
FR2403418B1 (sv) 1982-07-02
AT367812B (de) 1982-08-10
NO153978B (no) 1986-03-17
NO153978C (no) 1986-06-25
DE2742262A1 (de) 1979-03-29
CA1133660A (en) 1982-10-19
JPS5455606A (en) 1979-05-02
IT1109111B (it) 1985-12-16
IT7869162A0 (it) 1978-09-19
GB2005743A (en) 1979-04-25
BE870607A (fr) 1979-03-19
GB2005743B (en) 1982-03-03
NO782820L (no) 1979-03-21
BR7806050A (pt) 1979-05-02
ES472687A1 (es) 1979-02-16
AR218936A1 (es) 1980-07-15
SE7809831L (sv) 1979-03-21
FI68273B (fi) 1985-04-30
ZA785356B (en) 1979-09-26
ATA675678A (de) 1981-12-15

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Legal Events

Date Code Title Description
ST Notification of lapse