FI930744A0 - CHLORFRI COOKING AND BLEKNING AV MASS - Google Patents
CHLORFRI COOKING AND BLEKNING AV MASSInfo
- Publication number
- FI930744A0 FI930744A0 FI930744A FI930744A FI930744A0 FI 930744 A0 FI930744 A0 FI 930744A0 FI 930744 A FI930744 A FI 930744A FI 930744 A FI930744 A FI 930744A FI 930744 A0 FI930744 A0 FI 930744A0
- Authority
- FI
- Finland
- Prior art keywords
- chlorfri
- blekning
- cooking
- mass
- chlorfri cooking
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D57/00—Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C
- B01D57/02—Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C by electrophoresis
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
- D21C11/0028—Effluents derived from the washing or bleaching plants
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0042—Fractionating or concentration of spent liquors by special methods
-
- 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
- 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
-
- 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
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83938992A | 1992-02-21 | 1992-02-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI930744A0 true FI930744A0 (en) | 1993-02-19 |
FI930744A FI930744A (en) | 1993-09-07 |
Family
ID=25279603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI930744A FI930744A (en) | 1992-02-21 | 1993-02-19 | CHLORFRI COOKING AND BLEKNING AV MASS |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0557112A1 (en) |
CA (1) | CA2089516A1 (en) |
FI (1) | FI930744A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2078276C (en) * | 1992-09-15 | 2004-05-25 | Derek Hornsey | Recovery of oxygen-rich gas from ozone bleaching processes |
BR9407457A (en) * | 1993-09-03 | 1996-11-12 | Union Camp Patent Holding | Process for the preparation of a targeted pulp having a certain luster and a certain resistance as indicated by a certain viscosity |
WO1995008021A1 (en) * | 1993-09-15 | 1995-03-23 | Kamyr, Inc. | Eop stage for chlorine free bleaching |
FI122812B (en) | 2007-06-15 | 2012-07-13 | Andritz Oy | A method for treating fluid flows at a pulp mill |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920703922A (en) * | 1990-05-17 | 1992-12-18 | 원본미기재 | Bleaching method of lignocellulosic material with improved environmental pollution |
CA2037717C (en) * | 1990-09-17 | 1996-03-05 | Bertil Stromberg | Extended kraft cooking with white liquor added to wash circulation |
-
1993
- 1993-02-15 CA CA 2089516 patent/CA2089516A1/en not_active Abandoned
- 1993-02-19 EP EP93301222A patent/EP0557112A1/en not_active Withdrawn
- 1993-02-19 FI FI930744A patent/FI930744A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA2089516A1 (en) | 1993-08-22 |
FI930744A (en) | 1993-09-07 |
EP0557112A1 (en) | 1993-08-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI934361A (en) | Foerfarande and anordning Foer evaluato av vaegningsparametrarna Foer en signal i en mottagare | |
FI942993A (en) | Organo-aluminoxy product and use thereof | |
FI935784A0 (en) | Foerfarande och anordning Foer ozonblekning av massa | |
FI922780A (en) | FROEBELAEGGNING OCH FOERFARANDE FOER BELAEGGANDE AV FROEN | |
FI930275A0 (en) | HETBLAOSNINGSUGN OCH FOERFARANDE FOER FRAMSTAELLNING AV EN HETBLAOSNINGSUGN | |
FI932863A0 (en) | Foerfarande Foer framstaellning av nya thienotiazinderivat and deras anvaendning | |
FI935559A0 (en) | Foer farande Foer faestning av haordmetallstift i en borrkrona and en borrkrona | |
FI930744A0 (en) | CHLORFRI COOKING AND BLEKNING AV MASS | |
FI923585A (en) | ANVAENDNING AV EN TVAETTPRESS I EN ALKALITILLSATSPROCESS FOER MASS | |
FI931772A0 (en) | FOERFARANDE OCH ANORDNING FOER FRAMSTAELLNING AV MASSA | |
FI925159A0 (en) | FOERFARANDE FOER BLEKNING AV MASSA | |
DE59303212D1 (en) | COOKING AND COOKING DEVICE | |
FI930218A0 (en) | ELEKTROD OCH FOERFARANDE FOER MAETNING AV UTJAEMNINGSEFFEKT | |
FI925558A0 (en) | FOERFARANDE OCH ANORDNING FOER BLEKNING AV MASSA | |
FI944556A0 (en) | Foerfarande Foer producering av anthracycliner and deras mellanprodukter | |
FI941514A0 (en) | Fragaria - plants and seeds | |
FI924486A (en) | Foerfarande och anordning Foer gjutning av betongprodukter | |
FI925277A (en) | Monterbar and demonterbar laettbyggd bostad | |
FI714U1 (en) | Foersaeljningsstaell Foer mass | |
FI945616A0 (en) | Foerfarande and anordningar Foer utnyttjande av vaogenergi | |
FI942533A0 (en) | Spolvaetska och droppdoseringsfoerpackning Foer contactlins and anvaendning av desamma | |
FI951094A0 (en) | Foerfarande and anordningar Foer utnyttjande av vaogenergi | |
FI953063A0 (en) | Traod and foarfarande Foer framstaellning av traod | |
FI934833A (en) | FOERFARANDE FOER BLEKNING AV LIGNOCELLULOSAHALTIG MASS | |
FI935719A0 (en) | Contacting and contacting means Contacting and contacting |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
HC | Name/ company changed in application |
Owner name: AHLSTROM MACHINERY INC. |
|
FD | Application lapsed |