DE3674866D1 - Verfahren zur delignifizierung von zellulosematerialien. - Google Patents

Verfahren zur delignifizierung von zellulosematerialien.

Info

Publication number
DE3674866D1
DE3674866D1 DE8686110249T DE3674866T DE3674866D1 DE 3674866 D1 DE3674866 D1 DE 3674866D1 DE 8686110249 T DE8686110249 T DE 8686110249T DE 3674866 T DE3674866 T DE 3674866T DE 3674866 D1 DE3674866 D1 DE 3674866D1
Authority
DE
Germany
Prior art keywords
cellulosic materials
cellulose materials
treated
delignifying cellulose
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 - Fee Related
Application number
DE8686110249T
Other languages
English (en)
Inventor
Josef S Dr 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 DE3674866D1 publication Critical patent/DE3674866D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • External Artificial Organs (AREA)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Materials For Medical Uses (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Dental Preparations (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Detergent Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
DE8686110249T 1985-08-05 1986-07-25 Verfahren zur delignifizierung von zellulosematerialien. Expired - Fee Related DE3674866D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76272485A 1985-08-05 1985-08-05

Publications (1)

Publication Number Publication Date
DE3674866D1 true DE3674866D1 (de) 1990-11-15

Family

ID=25065878

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686110249T Expired - Fee Related DE3674866D1 (de) 1985-08-05 1986-07-25 Verfahren zur delignifizierung von zellulosematerialien.

Country Status (14)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE57400T1 (de) * 1985-08-05 1990-10-15 Interox Sa Verfahren zur delignifizierung von zellulosematerialien.
FI122654B (fi) * 1997-12-08 2012-05-15 Ovivo Luxembourg Sarl Menetelmä paperisellumassan valmistamiseksi
AU2008253520B2 (en) * 2007-05-23 2013-05-09 Innotech Alberta 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 (de) * 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
ATE57400T1 (de) * 1985-08-05 1990-10-15 Interox Sa Verfahren zur delignifizierung von zellulosematerialien.

Also Published As

Publication number Publication date
EP0213376A1 (de) 1987-03-11
NO168375B (no) 1991-11-04
AU6054386A (en) 1987-02-12
NO168375C (no) 1992-02-12
NO863132L (no) 1987-02-06
YU45352B (en) 1992-05-28
JPH0742669B2 (ja) 1995-05-10
IN167959B (de) 1991-01-12
NZ217001A (en) 1989-01-27
FI863193A (fi) 1987-02-06
YU137086A (en) 1987-10-31
EP0213376B1 (de) 1990-10-10
ATE57401T1 (de) 1990-10-15
FI85725C (fi) 1992-05-25
PT83117B (pt) 1988-10-14
AU591508B2 (en) 1989-12-07
FI85725B (fi) 1992-02-14
BR8603671A (pt) 1987-03-10
FI863193A0 (fi) 1986-08-05
ES2000831A6 (es) 1988-03-16
PT83117A (fr) 1986-09-01
CA1282911C (fr) 1991-04-16
NO863132D0 (no) 1986-08-04
JPS6297991A (ja) 1987-05-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee