BR8603671A - Processo para a deslignificacao de materias celulosicas - Google Patents

Processo para a deslignificacao de materias celulosicas

Info

Publication number
BR8603671A
BR8603671A BR8603671A BR8603671A BR8603671A BR 8603671 A BR8603671 A BR 8603671A BR 8603671 A BR8603671 A BR 8603671A BR 8603671 A BR8603671 A BR 8603671A BR 8603671 A BR8603671 A BR 8603671A
Authority
BR
Brazil
Prior art keywords
cellulosic materials
designification
cellulosic
treated
conditions
Prior art date
Application number
BR8603671A
Other languages
English (en)
Portuguese (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 BR8603671A publication Critical patent/BR8603671A/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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Dental Preparations (AREA)
  • External Artificial Organs (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Materials For Medical Uses (AREA)
  • Organic Insulating Materials (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Detergent Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
BR8603671A 1985-08-05 1986-08-04 Processo para a deslignificacao de materias celulosicas BR8603671A (pt)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR8603671A true BR8603671A (pt) 1987-03-10

Family

ID=25065878

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8603671A BR8603671A (pt) 1985-08-05 1986-08-04 Processo para a deslignificacao de materias celulosicas

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
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
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
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
FI863193A0 (fi) 1986-08-05
YU137086A (en) 1987-10-31
JPH0742669B2 (ja) 1995-05-10
NO863132D0 (no) 1986-08-04
ATE57401T1 (de) 1990-10-15
EP0213376A1 (fr) 1987-03-11
IN167959B (no) 1991-01-12
AU591508B2 (en) 1989-12-07
NO168375C (no) 1992-02-12
FI85725C (fi) 1992-05-25
FI85725B (fi) 1992-02-14
NO863132L (no) 1987-02-06
FI863193A (fi) 1987-02-06
NO168375B (no) 1991-11-04
CA1282911C (fr) 1991-04-16
AU6054386A (en) 1987-02-12
PT83117A (fr) 1986-09-01
DE3674866D1 (de) 1990-11-15
NZ217001A (en) 1989-01-27
PT83117B (pt) 1988-10-14
EP0213376B1 (fr) 1990-10-10
JPS6297991A (ja) 1987-05-07
ES2000831A6 (es) 1988-03-16
YU45352B (en) 1992-05-28

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 04/08/2001