CA1282911C - Procede pour la delignification de matieres cellulosiques - Google Patents

Procede pour la delignification de matieres cellulosiques

Info

Publication number
CA1282911C
CA1282911C CA000515198A CA515198A CA1282911C CA 1282911 C CA1282911 C CA 1282911C CA 000515198 A CA000515198 A CA 000515198A CA 515198 A CA515198 A CA 515198A CA 1282911 C CA1282911 C CA 1282911C
Authority
CA
Canada
Prior art keywords
cooking
cellulosic materials
materials
carried out
cellulosic
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 - Lifetime
Application number
CA000515198A
Other languages
English (en)
French (fr)
Inventor
Josef S. Gratzl
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.)
Solvay Chimie SA
Original Assignee
Interox SA
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 Interox SA filed Critical Interox SA
Application granted granted Critical
Publication of CA1282911C publication Critical patent/CA1282911C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes

Landscapes

  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • External Artificial Organs (AREA)
  • Dental Preparations (AREA)
  • Materials For Medical Uses (AREA)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Detergent Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
CA000515198A 1985-08-05 1986-08-01 Procede pour la delignification de matieres cellulosiques Expired - Lifetime CA1282911C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76272485A 1985-08-05 1985-08-05
US762,724 1985-08-05

Publications (1)

Publication Number Publication Date
CA1282911C true CA1282911C (fr) 1991-04-16

Family

ID=25065878

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000515198A Expired - Lifetime CA1282911C (fr) 1985-08-05 1986-08-01 Procede pour la delignification de matieres cellulosiques

Country Status (14)

Country Link
EP (1) EP0213376B1 (no)
JP (1) JPH0742669B2 (no)
AT (1) ATE57401T1 (no)
AU (1) AU591508B2 (no)
BR (1) BR8603671A (no)
CA (1) CA1282911C (no)
DE (1) DE3674866D1 (no)
ES (1) ES2000831A6 (no)
FI (1) FI85725C (no)
IN (1) IN167959B (no)
NO (1) NO168375C (no)
NZ (1) NZ217001A (no)
PT (1) PT83117B (no)
YU (1) YU45352B (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212329B1 (fr) * 1985-08-05 1990-10-10 INTEROX Société Anonyme Procédé pour la délignification de matières cellulosiques
FI122654B (fi) * 1997-12-08 2012-05-15 Ovivo Luxembourg Sarl Menetelmä paperisellumassan valmistamiseksi
CA2687581C (en) * 2007-05-23 2015-04-21 Alberta Research Council Inc. Method to remove hemicellulose from cellulosic fibres using a solution of ammonia and hydrogen peroxide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE873649C (de) * 1944-08-25 1953-04-16 Degussa Verfahren zur Herstellung von ungebleichten Zellstoffen mit hohem Weissgehalt
SE373896B (no) * 1972-07-05 1975-02-17 Mo Och Domsjoe Ab
SE380298B (sv) * 1974-03-14 1975-11-03 Mo Forfarande for delignifiering genom syrgas-alkalibehandling av lignocelluosahaltigt material
US4486267A (en) * 1983-11-14 1984-12-04 Mead Corporation Chemithermomechanical pulping process employing separate alkali and sulfite treatments
EP0212329B1 (fr) * 1985-08-05 1990-10-10 INTEROX Société Anonyme Procédé pour la délignification de matières cellulosiques

Also Published As

Publication number Publication date
PT83117A (fr) 1986-09-01
YU137086A (en) 1987-10-31
FI863193A0 (fi) 1986-08-05
AU591508B2 (en) 1989-12-07
JPH0742669B2 (ja) 1995-05-10
FI85725B (fi) 1992-02-14
NZ217001A (en) 1989-01-27
ES2000831A6 (es) 1988-03-16
YU45352B (en) 1992-05-28
EP0213376B1 (fr) 1990-10-10
NO168375B (no) 1991-11-04
AU6054386A (en) 1987-02-12
BR8603671A (pt) 1987-03-10
NO863132D0 (no) 1986-08-04
EP0213376A1 (fr) 1987-03-11
FI85725C (fi) 1992-05-25
NO863132L (no) 1987-02-06
NO168375C (no) 1992-02-12
PT83117B (pt) 1988-10-14
JPS6297991A (ja) 1987-05-07
DE3674866D1 (de) 1990-11-15
IN167959B (no) 1991-01-12
FI863193A (fi) 1987-02-06
ATE57401T1 (de) 1990-10-15

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Legal Events

Date Code Title Description
MKLA Lapsed