CA1123249A - Reducing chemical transfer between treatment stages - Google Patents
Reducing chemical transfer between treatment stagesInfo
- Publication number
- CA1123249A CA1123249A CA343,436A CA343436A CA1123249A CA 1123249 A CA1123249 A CA 1123249A CA 343436 A CA343436 A CA 343436A CA 1123249 A CA1123249 A CA 1123249A
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- mat
- liquid phase
- washer
- fluid
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
-
- 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
- D21C9/1073—Bleaching ; Apparatus therefor with O3
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US249279A | 1979-01-11 | 1979-01-11 | |
US2,492 | 1979-01-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1123249A true CA1123249A (en) | 1982-05-11 |
Family
ID=21701039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA343,436A Expired CA1123249A (en) | 1979-01-11 | 1980-01-10 | Reducing chemical transfer between treatment stages |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5598991A (da) |
AU (1) | AU527540B2 (da) |
CA (1) | CA1123249A (da) |
FI (1) | FI800080A (da) |
FR (1) | FR2446354A1 (da) |
NO (1) | NO800041L (da) |
NZ (1) | NZ192583A (da) |
SE (1) | SE8000250L (da) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE426607B (sv) * | 1982-03-29 | 1983-01-31 | Kamyr Ab | Sett att behandla en massasuspension som er i rorelse lengs en bana medelst fortrengning av massans suspensionsvetska med en eller flera ersettningsvetskor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1106842A (en) * | 1965-01-25 | 1968-03-20 | Electric Reduction Co | Manufacture of cellulosic pulp |
ZA761255B (en) * | 1975-03-11 | 1977-03-30 | Erco Envirotech Ltd | Bleachplant operation |
US4104114A (en) * | 1977-05-05 | 1978-08-01 | Erco Envirotech Ltd. | Bleach plant operation |
-
1980
- 1980-01-08 NO NO800041A patent/NO800041L/no unknown
- 1980-01-10 NZ NZ192583A patent/NZ192583A/xx unknown
- 1980-01-10 CA CA343,436A patent/CA1123249A/en not_active Expired
- 1980-01-11 AU AU54569/80A patent/AU527540B2/en not_active Ceased
- 1980-01-11 FI FI800080A patent/FI800080A/fi not_active Application Discontinuation
- 1980-01-11 JP JP198380A patent/JPS5598991A/ja active Pending
- 1980-01-11 FR FR8000608A patent/FR2446354A1/fr active Granted
- 1980-01-11 SE SE8000250A patent/SE8000250L/ not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
JPS5598991A (en) | 1980-07-28 |
NO800041L (no) | 1980-07-14 |
FR2446354B1 (da) | 1984-10-12 |
FI800080A (fi) | 1980-07-12 |
FR2446354A1 (fr) | 1980-08-08 |
AU5456980A (en) | 1980-07-17 |
SE8000250L (sv) | 1980-07-12 |
AU527540B2 (en) | 1983-03-10 |
NZ192583A (en) | 1983-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry | ||
MKEX | Expiry |
Effective date: 19990511 |