BR8109039A - PULP TREATMENT WITH OXYGEN - Google Patents
PULP TREATMENT WITH OXYGENInfo
- Publication number
- BR8109039A BR8109039A BR8109039A BR8109039A BR8109039A BR 8109039 A BR8109039 A BR 8109039A BR 8109039 A BR8109039 A BR 8109039A BR 8109039 A BR8109039 A BR 8109039A BR 8109039 A BR8109039 A BR 8109039A
- Authority
- BR
- Brazil
- Prior art keywords
- oxygen
- pulp treatment
- pulp
- treatment
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1981/001186 WO1983000887A1 (en) | 1981-09-04 | 1981-09-04 | Method of treating pulp with plural oxygen stages |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8109039A true BR8109039A (en) | 1983-09-06 |
Family
ID=22161407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8109039A BR8109039A (en) | 1981-09-04 | 1981-09-04 | PULP TREATMENT WITH OXYGEN |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0088073A4 (en) |
JP (1) | JPS58501383A (en) |
BR (1) | BR8109039A (en) |
FI (1) | FI831473L (en) |
NO (1) | NO831454L (en) |
WO (1) | WO1983000887A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3446301A1 (en) * | 1984-12-19 | 1986-06-19 | Degussa Ag, 6000 Frankfurt | METHOD FOR DELIGNIFYING SULFATE CELLS |
US4946556A (en) * | 1989-04-25 | 1990-08-07 | Kamyr, Inc. | Method of oxygen delignifying wood pulp with between stage washing |
US7001483B2 (en) * | 2003-08-05 | 2006-02-21 | Weyerhaeuser Company | Apparatus for making carboxylated pulp fibers |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA897361A (en) * | 1969-12-19 | 1972-04-11 | E. Mallett Samuel | Oxygen bleaching process |
US3832276A (en) * | 1973-03-07 | 1974-08-27 | Int Paper Co | Delignification and bleaching of a cellulose pulp slurry with oxygen |
US4161421A (en) * | 1977-09-13 | 1979-07-17 | Kamyr, Inc. | Method and apparatus for continuous oxygen bleaching of cellulosic pulp |
-
1981
- 1981-09-04 EP EP19810902539 patent/EP0088073A4/en not_active Withdrawn
- 1981-09-04 JP JP56503098A patent/JPS58501383A/en active Pending
- 1981-09-04 WO PCT/US1981/001186 patent/WO1983000887A1/en not_active Application Discontinuation
- 1981-09-04 BR BR8109039A patent/BR8109039A/en unknown
-
1983
- 1983-04-25 NO NO831454A patent/NO831454L/en unknown
- 1983-04-29 FI FI831473A patent/FI831473L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0088073A4 (en) | 1984-01-09 |
WO1983000887A1 (en) | 1983-03-17 |
FI831473A0 (en) | 1983-04-29 |
EP0088073A1 (en) | 1983-09-14 |
FI831473L (en) | 1983-04-29 |
JPS58501383A (en) | 1983-08-18 |
NO831454L (en) | 1983-04-25 |
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