FI85726C - Foerfarande foer delignifiering av cellulosamaterial. - Google Patents

Foerfarande foer delignifiering av cellulosamaterial. Download PDF

Info

Publication number
FI85726C
FI85726C FI863194A FI863194A FI85726C FI 85726 C FI85726 C FI 85726C FI 863194 A FI863194 A FI 863194A FI 863194 A FI863194 A FI 863194A FI 85726 C FI85726 C FI 85726C
Authority
FI
Finland
Prior art keywords
process according
hydrogen peroxide
carried out
cellulose material
cooking
Prior art date
Application number
FI863194A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI85726B (fi
FI863194A0 (fi
FI863194A (fi
Inventor
Josef S Gratzl
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
Publication of FI863194A0 publication Critical patent/FI863194A0/fi
Publication of FI863194A publication Critical patent/FI863194A/fi
Publication of FI85726B publication Critical patent/FI85726B/fi
Application granted granted Critical
Publication of FI85726C publication Critical patent/FI85726C/fi

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)
  • Detergent Compositions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • External Artificial Organs (AREA)
  • Materials For Medical Uses (AREA)
  • Dental Preparations (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
FI863194A 1985-08-05 1986-08-05 Foerfarande foer delignifiering av cellulosamaterial. FI85726C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76272685A 1985-08-05 1985-08-05
US76272685 1985-08-05

Publications (4)

Publication Number Publication Date
FI863194A0 FI863194A0 (fi) 1986-08-05
FI863194A FI863194A (fi) 1987-02-06
FI85726B FI85726B (fi) 1992-02-14
FI85726C true FI85726C (fi) 1992-05-25

Family

ID=25065883

Family Applications (1)

Application Number Title Priority Date Filing Date
FI863194A FI85726C (fi) 1985-08-05 1986-08-05 Foerfarande foer delignifiering av cellulosamaterial.

Country Status (13)

Country Link
EP (1) EP0212329B1 (no)
JP (1) JPH0742670B2 (no)
AT (1) ATE57400T1 (no)
AU (1) AU591509B2 (no)
BR (1) BR8603672A (no)
CA (1) CA1311093C (no)
DE (1) DE3674859D1 (no)
ES (1) ES2000385A6 (no)
FI (1) FI85726C (no)
NO (1) NO168490C (no)
NZ (1) NZ217002A (no)
PT (1) PT83118B (no)
YU (1) YU45351B (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN167959B (no) * 1985-08-05 1991-01-12 Interox

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1474276A (fr) * 1965-03-19 1967-03-24 Electro Chimie Soc D Perfectionnements à la fabrication de pâte à papier
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
SE7612248L (sv) * 1976-11-03 1978-05-04 Mo Och Domsjoe Ab Kokning av lignocellulosahaltiga material
SU821614A1 (ru) * 1979-06-19 1981-04-15 Белорусский Технологический Институт Им.C.M.Кирова Способ получени целлюлозного полу-фАбРиКАТА
IN167959B (no) * 1985-08-05 1991-01-12 Interox

Also Published As

Publication number Publication date
FI85726B (fi) 1992-02-14
AU591509B2 (en) 1989-12-07
FI863194A0 (fi) 1986-08-05
DE3674859D1 (de) 1990-11-15
NO863133L (no) 1987-02-06
AU6054486A (en) 1987-02-12
FI863194A (fi) 1987-02-06
NO863133D0 (no) 1986-08-04
PT83118B (pt) 1988-10-14
CA1311093C (fr) 1992-12-08
NO168490B (no) 1991-11-18
NZ217002A (en) 1988-11-29
BR8603672A (pt) 1987-03-10
PT83118A (fr) 1986-09-01
ATE57400T1 (de) 1990-10-15
NO168490C (no) 1992-02-26
JPH0742670B2 (ja) 1995-05-10
ES2000385A6 (es) 1988-02-16
EP0212329A1 (fr) 1987-03-04
JPS6297992A (ja) 1987-05-07
YU136986A (en) 1987-10-31
YU45351B (en) 1992-05-28
EP0212329B1 (fr) 1990-10-10

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: INTEROX (SOCIETE ANONYME)