AU509882B2 - Delignification and bleaching with ozone - Google Patents
Delignification and bleaching with ozoneInfo
- Publication number
- AU509882B2 AU509882B2 AU24651/77A AU2465177A AU509882B2 AU 509882 B2 AU509882 B2 AU 509882B2 AU 24651/77 A AU24651/77 A AU 24651/77A AU 2465177 A AU2465177 A AU 2465177A AU 509882 B2 AU509882 B2 AU 509882B2
- Authority
- AU
- Australia
- Prior art keywords
- delignification
- bleaching
- ozone
- 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
- D21C9/10—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)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- External Artificial Organs (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69206276A | 1976-06-02 | 1976-06-02 | |
US05/705,869 US4080249A (en) | 1976-06-02 | 1976-07-16 | Delignification and bleaching of a lignocellulosic pulp slurry with ozone |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2465177A AU2465177A (en) | 1978-11-02 |
AU509882B2 true AU509882B2 (en) | 1980-05-29 |
Family
ID=27104896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU24651/77A Expired AU509882B2 (en) | 1976-06-02 | 1977-04-28 | Delignification and bleaching with ozone |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS52148204A (en) |
AU (1) | AU509882B2 (en) |
BR (1) | BR7703256A (en) |
CA (1) | CA1090510A (en) |
FI (1) | FI62362C (en) |
FR (1) | FR2353674A1 (en) |
NO (1) | NO771468L (en) |
NZ (1) | NZ184228A (en) |
SE (1) | SE415492B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2475084A1 (en) * | 1979-11-23 | 1981-08-07 | Weyerhaeuser Co | Low consistency pulp bleaching with ozone - at specific consistencies and gassed pulp mixing energies |
JPS5679797A (en) * | 1979-11-30 | 1981-06-30 | Weyerhaeuser Co | Bleaching of cellulose fiber |
FR2620744A1 (en) * | 1987-09-17 | 1989-03-24 | Degremont | PROCESS FOR THE OZONE TREATMENT OF LIGNO-CELLULOSIC MATERIALS, IN PARTICULAR PAPER PULP AND REACTOR FOR THE IMPLEMENTATION OF SAID METHOD |
EP0325890B1 (en) * | 1988-01-25 | 1993-06-09 | Acetocell GmbH & Co. KG | Process for treating lignin containing cellulose pulp with ozone |
FI89516B (en) * | 1989-05-10 | 1993-06-30 | Ahlstroem Oy | Foerfarande Foer blekning av cellulosamassa med Otson |
AU636173B2 (en) * | 1989-10-30 | 1993-04-22 | Lenzing Aktiengesellschaft | Method for the chlorine-free bleaching of pulps |
JP2825346B2 (en) * | 1990-05-17 | 1998-11-18 | ユニオン キャンプ コーポレイション | Environmentally improved bleaching method for lignocellulosic materials |
-
1977
- 1977-03-04 CA CA273,237A patent/CA1090510A/en not_active Expired
- 1977-04-27 NO NO771468A patent/NO771468L/en unknown
- 1977-04-28 AU AU24651/77A patent/AU509882B2/en not_active Expired
- 1977-05-11 FI FI771500A patent/FI62362C/en not_active IP Right Cessation
- 1977-05-17 JP JP5701077A patent/JPS52148204A/en active Pending
- 1977-05-20 BR BR3256/77A patent/BR7703256A/en unknown
- 1977-05-27 NZ NZ184228A patent/NZ184228A/en unknown
- 1977-06-01 SE SE7706371A patent/SE415492B/en unknown
- 1977-06-02 FR FR7716890A patent/FR2353674A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
SE7706371L (en) | 1977-12-03 |
FI771500A (en) | 1977-12-03 |
SE415492B (en) | 1980-10-06 |
JPS52148204A (en) | 1977-12-09 |
AU2465177A (en) | 1978-11-02 |
CA1090510A (en) | 1980-12-02 |
FI62362C (en) | 1982-12-10 |
FR2353674A1 (en) | 1977-12-30 |
FI62362B (en) | 1982-08-31 |
NZ184228A (en) | 1980-04-28 |
NO771468L (en) | 1977-12-05 |
BR7703256A (en) | 1978-01-31 |
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