CA1246304A - Process and apparatus for bleaching of pulp - Google Patents
Process and apparatus for bleaching of pulpInfo
- Publication number
- CA1246304A CA1246304A CA000437765A CA437765A CA1246304A CA 1246304 A CA1246304 A CA 1246304A CA 000437765 A CA000437765 A CA 000437765A CA 437765 A CA437765 A CA 437765A CA 1246304 A CA1246304 A CA 1246304A
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- extraction
- stage
- layer
- process according
- 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
- 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
- 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
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 |
---|---|---|---|
US42655282A | 1982-09-29 | 1982-09-29 | |
US426,552 | 1982-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1246304A true CA1246304A (en) | 1988-12-13 |
Family
ID=23691253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000437765A Expired CA1246304A (en) | 1982-09-29 | 1983-09-28 | Process and apparatus for bleaching of pulp |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5988988A (ja) |
AU (1) | AU1923683A (ja) |
CA (1) | CA1246304A (ja) |
SE (1) | SE8305210L (ja) |
ZA (1) | ZA836912B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017160935A1 (en) * | 2016-03-16 | 2017-09-21 | Ecolab Usa Inc. | Low capital bleaching of chemical pulp |
-
1983
- 1983-09-16 ZA ZA836912A patent/ZA836912B/xx unknown
- 1983-09-19 AU AU19236/83A patent/AU1923683A/en not_active Abandoned
- 1983-09-27 SE SE8305210A patent/SE8305210L/ not_active Application Discontinuation
- 1983-09-28 CA CA000437765A patent/CA1246304A/en not_active Expired
- 1983-09-29 JP JP58181779A patent/JPS5988988A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017160935A1 (en) * | 2016-03-16 | 2017-09-21 | Ecolab Usa Inc. | Low capital bleaching of chemical pulp |
Also Published As
Publication number | Publication date |
---|---|
JPS5988988A (ja) | 1984-05-23 |
SE8305210D0 (sv) | 1983-09-27 |
ZA836912B (en) | 1984-07-25 |
SE8305210L (sv) | 1984-03-30 |
AU1923683A (en) | 1984-04-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry | ||
MKEX | Expiry |
Effective date: 20051213 |