CA1339593C - Procedure for the bleaching of pulp in which oxygen is used as the oxidating bleaching chemical - Google Patents
Procedure for the bleaching of pulp in which oxygen is used as the oxidating bleaching chemicalInfo
- Publication number
- CA1339593C CA1339593C CA000611771A CA611771A CA1339593C CA 1339593 C CA1339593 C CA 1339593C CA 000611771 A CA000611771 A CA 000611771A CA 611771 A CA611771 A CA 611771A CA 1339593 C CA1339593 C CA 1339593C
- Authority
- CA
- Canada
- Prior art keywords
- bleaching
- pulp
- oxygen
- chemical
- chlorine
- 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 - Fee Related
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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
-
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Paper (AREA)
- Noodles (AREA)
- Cereal-Derived Products (AREA)
- Table Devices Or Equipment (AREA)
- Bakery Products And Manufacturing Methods Therefor (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Hard Magnetic Materials (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI892151A FI86896B (fi) | 1989-05-04 | 1989-05-04 | Foerfarande foer blekning av cellulosamassa. |
FI892151 | 1989-05-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1339593C true CA1339593C (en) | 1997-12-23 |
Family
ID=8528357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000611771A Expired - Fee Related CA1339593C (en) | 1989-05-04 | 1989-09-18 | Procedure for the bleaching of pulp in which oxygen is used as the oxidating bleaching chemical |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0395792B1 (de) |
JP (1) | JPH02293486A (de) |
AT (1) | ATE91518T1 (de) |
CA (1) | CA1339593C (de) |
DE (1) | DE68907593D1 (de) |
ES (1) | ES2045320T3 (de) |
FI (1) | FI86896B (de) |
NO (1) | NO172355C (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69025405T2 (de) * | 1989-08-14 | 1996-09-05 | Genencor Int Europ | Verbesserung beim bleichen von pulpe |
SE465320B (sv) * | 1990-01-10 | 1991-08-26 | Korsnaes Ab | Preparat som uppvisar enzymatisk delignifieringsaktivitet, saett att framstaella detsamma och tillaempningar daerav |
US5837515A (en) * | 1990-05-16 | 1998-11-17 | Alko-Yhtiot Oy | Enzyme preparations and methods for their production |
JP2859393B2 (ja) * | 1990-07-24 | 1999-02-17 | ノボ ノルディスク アクティーゼルスカブ | セルラーゼ及びその製造法 |
DE4129739A1 (de) * | 1990-09-11 | 1992-03-12 | Sandoz Ag | Chlorfreies bleichen von papierpulpe |
JPH04240287A (ja) * | 1991-01-21 | 1992-08-27 | Kobe Steel Ltd | パルプの漂白方法 |
FI90670C (sv) * | 1991-05-02 | 1994-03-10 | Metsae Serla Oy | Behandling av alkalibehandlad massa för användning i pappersframställning |
FI108800B (fi) * | 1991-05-07 | 2002-03-28 | Iogen Corp | Menetelmä ja laitteisto entsyymin käyttämiseksi paperimassan valmistuksessa ja valkaisussa |
US5785811A (en) * | 1992-11-09 | 1998-07-28 | The Mead Corporation | Process for treating lignocellulosic material with soybean peroxidase in the presence of peroxide |
US5935836A (en) * | 1994-07-29 | 1999-08-10 | Rohm Enzyme Finland Oy | Actinomadura xylanase sequences and methods of use |
US7816129B2 (en) | 1994-07-29 | 2010-10-19 | Ab Enzymes Gmbh | Production and secretion of proteins of bacterial origin in filamentous fungi |
US6300114B1 (en) | 1994-07-29 | 2001-10-09 | Rohm Enzyme Finland Oy | Sequences of xylanase and xylanase expression vectors |
US5871730A (en) * | 1994-07-29 | 1999-02-16 | Universite De Sherbrooke | Thermostable xylanase DNA, protein and methods of use |
US6824646B2 (en) | 1999-03-23 | 2004-11-30 | Oji Paper Co., Ltd. | Process for oxygen bleaching and enzyme treating lignocellulosic pulp with liquid treatment and recovery |
CA2627846C (en) * | 1999-03-23 | 2011-01-04 | Oji Paper Co., Ltd. | Process for bleaching lignocellulose pulp |
US6942754B2 (en) | 1999-03-23 | 2005-09-13 | Oji Paper Co., Ltd. | Process for producing xylooligosaccharide from lignocellulose pulp |
CA2432788C (en) | 2000-12-22 | 2008-10-07 | Iogen Bio-Products Corporation | Alkaline extraction stages comprising xylanase |
US9096519B2 (en) | 2013-01-10 | 2015-08-04 | California Institute Of Technology | Process for the synthesis of ketones from internal alkenes |
US9586883B2 (en) | 2013-04-19 | 2017-03-07 | California Institute Of Technology | Aldehyde-selective wacker-type oxidation of unbiased alkenes |
CN111979823A (zh) * | 2020-08-07 | 2020-11-24 | 齐鲁工业大学 | 一种硫酸盐木浆短程序ecf漂白工艺x/d-z-p(x/z-d-p) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5468402A (en) * | 1977-11-09 | 1979-06-01 | Kogyo Gijutsuin | Property modification of biochemical pulp |
FI81395B (fi) * | 1988-03-14 | 1990-06-29 | Cultor Oy | Foerfarande foer blekning av cellulosamassa. |
FI90888B (fi) * | 1989-02-14 | 1993-12-31 | Enso Gutzeit Oy | Menetelmä selluloosamassan valkaisemiseksi |
-
1989
- 1989-05-04 FI FI892151A patent/FI86896B/fi not_active Application Discontinuation
- 1989-09-18 CA CA000611771A patent/CA1339593C/en not_active Expired - Fee Related
- 1989-09-18 NO NO893716A patent/NO172355C/no not_active IP Right Cessation
- 1989-09-18 AT AT89117233T patent/ATE91518T1/de not_active IP Right Cessation
- 1989-09-18 JP JP1241666A patent/JPH02293486A/ja active Pending
- 1989-09-18 EP EP89117233A patent/EP0395792B1/de not_active Revoked
- 1989-09-18 DE DE8989117233T patent/DE68907593D1/de not_active Expired - Lifetime
- 1989-09-18 ES ES89117233T patent/ES2045320T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH02293486A (ja) | 1990-12-04 |
FI892151A0 (fi) | 1989-05-04 |
ES2045320T3 (es) | 1994-01-16 |
NO172355C (no) | 1993-07-07 |
FI86896B (fi) | 1992-07-15 |
NO893716D0 (no) | 1989-09-18 |
NO172355B (no) | 1993-03-29 |
EP0395792A3 (de) | 1991-01-16 |
ATE91518T1 (de) | 1993-07-15 |
DE68907593D1 (de) | 1993-08-19 |
FI892151A (fi) | 1990-11-05 |
EP0395792A2 (de) | 1990-11-07 |
NO893716L (no) | 1990-11-05 |
EP0395792B1 (de) | 1993-07-14 |
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CA1339593C (en) | Procedure for the bleaching of pulp in which oxygen is used as the oxidating bleaching chemical | |
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CA1339594C (en) | Procedure for the bleaching of pulp involving enzyme treatment and the use in the oxidation stage of a chemical with at least 50% chlorine dioxide content | |
DK175185B1 (da) | Fremgangsmåde til blegning af cellulosemasse og anvendelse af enzymer | |
EP0513140B1 (de) | Verfahren zum bleichen von chemischem papierzellstoff | |
JP2831048B2 (ja) | パルプ漂白法 | |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKLA | Lapsed |