FI88315C - FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA - Google Patents
FOERFARANDE FOER BLEKNING AV CELLULOSAMASSAInfo
- Publication number
- FI88315C FI88315C FI901711A FI901711A FI88315C FI 88315 C FI88315 C FI 88315C FI 901711 A FI901711 A FI 901711A FI 901711 A FI901711 A FI 901711A FI 88315 C FI88315 C FI 88315C
- Authority
- FI
- Finland
- Prior art keywords
- cellulosamassa
- foerfarande foer
- blekning
- foer blekning
- foerfarande
- Prior art date
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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
-
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI901711A FI88315C (en) | 1990-04-04 | 1990-04-04 | FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA |
PCT/FI1991/000097 WO1991015627A1 (en) | 1990-04-04 | 1991-04-03 | A process for the bleaching of chemical pulp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI901711 | 1990-04-04 | ||
FI901711A FI88315C (en) | 1990-04-04 | 1990-04-04 | FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA |
Publications (4)
Publication Number | Publication Date |
---|---|
FI901711A0 FI901711A0 (en) | 1990-04-04 |
FI901711A FI901711A (en) | 1991-10-05 |
FI88315B FI88315B (en) | 1993-01-15 |
FI88315C true FI88315C (en) | 1993-04-26 |
Family
ID=8530209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI901711A FI88315C (en) | 1990-04-04 | 1990-04-04 | FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA |
Country Status (2)
Country | Link |
---|---|
FI (1) | FI88315C (en) |
WO (1) | WO1991015627A1 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI81395B (en) * | 1988-03-14 | 1990-06-29 | Cultor Oy | FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA. |
JPH02160997A (en) * | 1988-12-13 | 1990-06-20 | Jujo Paper Co Ltd | Method for preventing trouble by pitch |
-
1990
- 1990-04-04 FI FI901711A patent/FI88315C/en not_active IP Right Cessation
-
1991
- 1991-04-03 WO PCT/FI1991/000097 patent/WO1991015627A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
FI901711A0 (en) | 1990-04-04 |
WO1991015627A1 (en) | 1991-10-17 |
FI88315B (en) | 1993-01-15 |
FI901711A (en) | 1991-10-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI930886A0 (en) | FOERFARANDE FOER HINDRANDE AV AVSTOETNING AV TRANSPLANTERAD VAEVNAD | |
FI932336A (en) | Inhibering av celladhesionprotein-kolhydratvaexelverkan | |
FI930848A (en) | FOERFARANDE FOER SEPARERING AV ILMENIT | |
FI931357A (en) | FRAMSTAELLNING AV POLYHYDROXIFETTSYRAAMIDER I NAERVARO AV LOESNINGSMEDEL | |
FI923931A (en) | ANORDINATION FOR GRANSKNING AV INSIDAN AV EN FOERGRENAD ROERLINJE | |
FI930165A (en) | FRAMSTAELLNING AV SYNNERLIGEN AKTIVA TVAETTMEDELSPARTIKLAR | |
FI931355A (en) | FASOEVERFOERINGSMEDIERAT FOERFARANDE FOER FRAMSTAELLNING AV GLUKAMIDTVAETTMEDEL | |
FI931356A0 (en) | FOERBAETTRAT KATALYTISKT FOERFARANDE FOER FRAMSTAELLNING AV GLUKAMIDTVAETTMEDEL | |
FI925805A0 (en) | FRAMSTAELLNING AV KOMPOSITMATERIAL | |
FI925609A (en) | FOERFARANDE FOER FRAMSTAELLNING AV SYKLISKA SULFATER | |
FI931879A0 (en) | FRAMSTAELLNING AV EN PEROXOSYRA | |
FI923779A (en) | FOERBAETTRINGAR I TILLVERKNINGEN AV NYLONGARN | |
FI931534A0 (en) | FOERFARANDE FOER FOERBAETTRING AV AKTIVERINGEN AV HYDRAULISKT MASUGNS SLAGG FOER FRAMSTAELLNING AV BYGGNADSMATERIAL | |
FI925544A0 (en) | BENSOESYRADERIVAT FOER BEHANDLING AV LEUKOTRIENASSOCIERADE SJUKDOMAR | |
FI930034A (en) | FOERFARANDE FOER FRAMSTAELLNING AV AVLAONGT FOEREMAOL | |
FI925546A0 (en) | AMIDKOPPLADE PYRIDYLBENSOESYRADERIVAT FOER BEHANDLING AV LEUKOTRIEN-ASSOCIERADE SJUKDOMAR | |
FI930013A (en) | HORMONDERIVAT AV BAKRE HYPOFYSLOBEN | |
FI930123A (en) | FOERFARANDE FOER ANVAENDNING AV OXIDERADE LIPOPROTEINER I VIRUSARTADE INFEKTIONER | |
FI932198A (en) | Anordning Foer skydd av kondensorroer | |
FI924154A (en) | FOERFARANDE FOER FRAMSTAELLNING AV PENEM-ESTRAR | |
FI923795A (en) | KRETSELEMENT FOER AOSTADKOMMANDE AV EN SPAERRSPAENNING FOER KOPPLINSDIODER | |
FI932901A0 (en) | Foerfarande Foer framstaellning av alkalimonofluorfosfat | |
FI88315C (en) | FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA | |
FI924601A0 (en) | FOERBAETTRAT IONTOFORETISKT ADMINISTRATIONSSAETT AV LAEKEMEDEL | |
FI924224A (en) | ANORDNING FOER UPP- OCH AVLINDNING AV STAENGSELNAET |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
FG | Patent granted |
Owner name: ENSO GUTZEIT OY |
|
MA | Patent expired |