SE9002601L - Foerbehandling av cellulosaraamaterial - Google Patents

Foerbehandling av cellulosaraamaterial

Info

Publication number
SE9002601L
SE9002601L SE9002601A SE9002601A SE9002601L SE 9002601 L SE9002601 L SE 9002601L SE 9002601 A SE9002601 A SE 9002601A SE 9002601 A SE9002601 A SE 9002601A SE 9002601 L SE9002601 L SE 9002601L
Authority
SE
Sweden
Prior art keywords
solution
carried out
treatment
opening
atmospheric
Prior art date
Application number
SE9002601A
Other languages
Unknown language ( )
English (en)
Other versions
SE9002601D0 (sv
SE507694C2 (sv
Inventor
O Aho
Original Assignee
Osom Aho
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 Osom Aho filed Critical Osom Aho
Publication of SE9002601L publication Critical patent/SE9002601L/sv
Publication of SE9002601D0 publication Critical patent/SE9002601D0/sv
Publication of SE507694C2 publication Critical patent/SE507694C2/sv

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/10—Physical methods for facilitating impregnation

Landscapes

  • Paper (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
SE9002601A 1988-02-08 1990-08-08 Förfarande och anordning för förbehandling av flis med hjälp av vakuumbehandling SE507694C2 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI880560A FI80083C (sv) 1988-02-08 1988-02-08 Förfarande och anordning för förbehandling av cellulosahaltigt råämne
PCT/FI1989/000017 WO1989007170A1 (en) 1988-02-08 1989-01-30 Process and equipment for pretreatment of cellulosic raw material

Publications (3)

Publication Number Publication Date
SE9002601L true SE9002601L (sv) 1990-08-08
SE9002601D0 SE9002601D0 (sv) 1990-08-08
SE507694C2 SE507694C2 (sv) 1998-07-06

Family

ID=8525866

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9002601A SE507694C2 (sv) 1988-02-08 1990-08-08 Förfarande och anordning för förbehandling av flis med hjälp av vakuumbehandling

Country Status (6)

Country Link
CA (1) CA1322827C (sv)
DE (1) DE3990074C2 (sv)
FI (1) FI80083C (sv)
FR (1) FR2650604B1 (sv)
SE (1) SE507694C2 (sv)
WO (1) WO1989007170A1 (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI80083C (sv) * 1988-02-08 1990-04-10 Antti Aho Förfarande och anordning för förbehandling av cellulosahaltigt råämne
FI910577A (fi) * 1991-02-06 1992-08-07 Antti Aho Reglering av en process.
FI934281A0 (fi) * 1993-09-29 1993-09-29 Antti Aho Foerbehandling av flis

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076501A (en) * 1956-11-08 1963-02-05 Escher Wyss Ag Apparatus for treating fibrous materials in the production of cellulose or semi-cellulose
DE1070013B (de) * 1957-07-10 1959-11-26 Escher Wyss G.m.b.H., Ravensburg Verfahren und Einrichtung zur Behandlung faserhaltiger Stoffe bei der Erzeugung von Zellstoff oder Halbzellstoff
US3215587A (en) * 1963-01-21 1965-11-02 Lummus Co Continuous process and apparatus for delignification of cellulosic material
US3347741A (en) * 1964-01-13 1967-10-17 Crane Co Feeder for solid materials
US3446701A (en) * 1967-12-28 1969-05-27 Us Agriculture Apparatus for impregnating and chemically converting cellulose-containing materials
FI80083C (sv) * 1988-02-08 1990-04-10 Antti Aho Förfarande och anordning för förbehandling av cellulosahaltigt råämne

Also Published As

Publication number Publication date
FI880560A (fi) 1989-08-09
FI880560A0 (fi) 1988-02-08
WO1989007170A1 (en) 1989-08-10
CA1322827C (en) 1993-10-12
FI80083C (sv) 1990-04-10
SE9002601D0 (sv) 1990-08-08
FR2650604B1 (fr) 1995-02-10
SE507694C2 (sv) 1998-07-06
FR2650604A1 (fr) 1991-02-08
FI80083B (fi) 1989-12-29
DE3990074C2 (de) 2000-03-16

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Legal Events

Date Code Title Description
NUG Patent has lapsed