PT83117A - Procede pour la delignification de matieres cellulosiques - Google Patents

Procede pour la delignification de matieres cellulosiques

Info

Publication number
PT83117A
PT83117A PT83117A PT8311786A PT83117A PT 83117 A PT83117 A PT 83117A PT 83117 A PT83117 A PT 83117A PT 8311786 A PT8311786 A PT 8311786A PT 83117 A PT83117 A PT 83117A
Authority
PT
Portugal
Prior art keywords
cellulosic materials
delignification
cellulosic
treated
conditions
Prior art date
Application number
PT83117A
Other languages
English (en)
Portuguese (pt)
Other versions
PT83117B (pt
Inventor
Josef S Gratzl
Original Assignee
Interox
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 filed Critical Interox
Publication of PT83117A publication Critical patent/PT83117A/fr
Publication of PT83117B publication Critical patent/PT83117B/pt

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)
  • Dental Preparations (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Materials For Medical Uses (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Detergent Compositions (AREA)
PT83117A 1985-08-05 1986-08-01 Processo para a deslenhificacao de materias celulosicas PT83117B (pt)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
PT83117A true PT83117A (fr) 1986-09-01
PT83117B PT83117B (pt) 1988-10-14

Family

ID=25065878

Family Applications (1)

Application Number Title Priority Date Filing Date
PT83117A PT83117B (pt) 1985-08-05 1986-08-01 Processo para a deslenhificacao de materias celulosicas

Country Status (14)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU591509B2 (en) * 1985-08-05 1989-12-07 Interox Societe Anonyme Process for the delignification of cellulosic substances
FI122654B (fi) * 1997-12-08 2012-05-15 Ovivo Luxembourg Sarl Menetelmä paperisellumassan valmistamiseksi
EP2158357B1 (fr) * 2007-05-23 2013-11-27 Alberta Innovates - Technology Futures Procédé pour éliminer l'hémicellulose de fibres cellulosiques en utilisant une solution d'ammoniac et de peroxyde d'hydrogène

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 (fr) * 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
AU591509B2 (en) * 1985-08-05 1989-12-07 Interox Societe Anonyme Process for the delignification of cellulosic substances

Also Published As

Publication number Publication date
BR8603671A (pt) 1987-03-10
PT83117B (pt) 1988-10-14
CA1282911C (fr) 1991-04-16
AU6054386A (en) 1987-02-12
NZ217001A (en) 1989-01-27
ES2000831A6 (es) 1988-03-16
DE3674866D1 (de) 1990-11-15
FI85725C (fi) 1992-05-25
IN167959B (fr) 1991-01-12
FI863193A (fi) 1987-02-06
YU137086A (en) 1987-10-31
JPH0742669B2 (ja) 1995-05-10
NO168375B (no) 1991-11-04
EP0213376B1 (fr) 1990-10-10
EP0213376A1 (fr) 1987-03-11
ATE57401T1 (de) 1990-10-15
NO863132L (no) 1987-02-06
AU591508B2 (en) 1989-12-07
NO863132D0 (no) 1986-08-04
JPS6297991A (ja) 1987-05-07
FI863193A0 (fi) 1986-08-05
FI85725B (fi) 1992-02-14
NO168375C (no) 1992-02-12
YU45352B (en) 1992-05-28

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FI884267A0 (fi) Menetelmä paperimassojen käsittelemiseksi otsonilla ja reaktori tämän menetelmän soveltamiseksi
DE3672577D1 (de) Verfahren zur bleiche und delignifizierung von zellstoffhaltigen produkten.
PT83117A (fr) Procede pour la delignification de matieres cellulosiques
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Legal Events

Date Code Title Description
MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20020930