EP0383999A3 - Procedure for the bleaching of pulp - Google Patents
Procedure for the bleaching of pulp Download PDFInfo
- Publication number
- EP0383999A3 EP0383999A3 EP19890117235 EP89117235A EP0383999A3 EP 0383999 A3 EP0383999 A3 EP 0383999A3 EP 19890117235 EP19890117235 EP 19890117235 EP 89117235 A EP89117235 A EP 89117235A EP 0383999 A3 EP0383999 A3 EP 0383999A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- pulp
- bleaching
- oxidation
- procedure
- chemical
- 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.)
- Granted
Links
- 238000004061 bleaching Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 102000004190 Enzymes Human genes 0.000 abstract 3
- 108090000790 Enzymes Proteins 0.000 abstract 3
- 230000003647 oxidation Effects 0.000 abstract 3
- 238000007254 oxidation reaction Methods 0.000 abstract 3
- 239000000126 substance Substances 0.000 abstract 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 2
- 239000000460 chlorine Substances 0.000 abstract 2
- 229910052801 chlorine Inorganic materials 0.000 abstract 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 2
- VGVRPFIJEJYOFN-UHFFFAOYSA-N 2,3,4,6-tetrachlorophenol Chemical class OC1=C(Cl)C=C(Cl)C(Cl)=C1Cl VGVRPFIJEJYOFN-UHFFFAOYSA-N 0.000 abstract 1
- 239000004155 Chlorine dioxide Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000007844 bleaching agent Substances 0.000 abstract 1
- 235000019398 chlorine dioxide Nutrition 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
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
-
- 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
- D21C9/12—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)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Cereal-Derived Products (AREA)
- Table Devices Or Equipment (AREA)
- Noodles (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89117235T ATE103351T1 (en) | 1989-02-14 | 1989-09-18 | METHOD OF BLEACHING PULP. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI890700 | 1989-02-14 | ||
FI890700A FI90888B (en) | 1989-02-14 | 1989-02-14 | Method for bleaching cellulose pulp |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0383999A2 EP0383999A2 (en) | 1990-08-29 |
EP0383999A3 true EP0383999A3 (en) | 1990-12-12 |
EP0383999B1 EP0383999B1 (en) | 1994-03-23 |
Family
ID=8527891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89117235A Revoked EP0383999B1 (en) | 1989-02-14 | 1989-09-18 | Procedure for the bleaching of pulp |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0383999B1 (en) |
JP (1) | JPH02221482A (en) |
AT (1) | ATE103351T1 (en) |
CA (1) | CA1339594C (en) |
DE (1) | DE68914135D1 (en) |
ES (1) | ES2050747T3 (en) |
FI (1) | FI90888B (en) |
NO (1) | NO176406C (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI86896B (en) * | 1989-05-04 | 1992-07-15 | Enso Gutzeit Oy | FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA. |
SE465320B (en) * | 1990-01-10 | 1991-08-26 | Korsnaes Ab | PREPARATIONS SUBMITTING ENZYMATIC DELIGNIFICATION ACTIVITY, MADE TO MAKE THE SAME AND APPLICATIONS THEREOF |
FI89814C (en) * | 1990-02-02 | 1993-11-25 | Enso Gutzeit Oy | FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA |
US5837515A (en) * | 1990-05-16 | 1998-11-17 | Alko-Yhtiot Oy | Enzyme preparations and methods for their production |
JP2859393B2 (en) * | 1990-07-24 | 1999-02-17 | ノボ ノルディスク アクティーゼルスカブ | Cellulase and method for producing the same |
DK203490D0 (en) * | 1990-08-24 | 1990-08-24 | Novo Nordisk As | PROCEDURE FOR TREATING LIGNOCELLULOS PULP AND APPARATUS FOR PERFORMING THE PROCESS |
DE4129739A1 (en) * | 1990-09-11 | 1992-03-12 | Sandoz Ag | Chlorine-free bleaching of paper pulp |
FI108800B (en) * | 1991-05-07 | 2002-03-28 | Iogen Corp | A method and apparatus for using an enzyme in the manufacture and bleaching of pulp |
CA2044100A1 (en) * | 1991-06-07 | 1992-12-08 | Janice Hamilton | Biobleaching process |
US5369024A (en) * | 1992-03-25 | 1994-11-29 | The United States Of America As Represented By The Secretary Of Agriculture | Xylanase from streptomyces roseiscleroticus NRRL-11019 for removing color from kraft wood pulps |
US5498534A (en) * | 1992-03-25 | 1996-03-12 | The United States Of America As Represented By The Secretary Of Agriculture | Method of removing color from wood pulp using xylanase from streptomyces roseiscleroticus NRRL B-11019 |
DE4422307A1 (en) * | 1994-06-17 | 1995-12-21 | Melitta Haushaltsprodukte | Process for delignifying and bleaching unbleached pulp suspensions using nitrogen compounds |
US7816129B2 (en) | 1994-07-29 | 2010-10-19 | Ab Enzymes Gmbh | Production and secretion of proteins of bacterial origin in filamentous fungi |
US5871730A (en) * | 1994-07-29 | 1999-02-16 | Universite De Sherbrooke | Thermostable xylanase DNA, protein and methods of use |
US6300114B1 (en) | 1994-07-29 | 2001-10-09 | Rohm Enzyme Finland Oy | Sequences of xylanase and xylanase expression vectors |
US5935836A (en) * | 1994-07-29 | 1999-08-10 | Rohm Enzyme Finland Oy | Actinomadura xylanase sequences and methods of use |
AU2002229430A1 (en) | 2001-01-18 | 2002-07-30 | Iogen Bio-Products Corporation | Use of xylanase in pulp bleaching |
US7368036B2 (en) | 2002-03-06 | 2008-05-06 | Iogen Bio-Products Corporation | Xylanase treatment of chemical pulp |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1086905A (en) * | 1977-10-25 | 1980-10-07 | W. Howard Rapson | Bleach plant operation |
WO1989008738A1 (en) * | 1988-03-14 | 1989-09-21 | Cultor Oy | Procedure for bleaching cellulose pulp |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5468402A (en) * | 1977-11-09 | 1979-06-01 | Kogyo Gijutsuin | Property modification of biochemical pulp |
-
1989
- 1989-02-14 FI FI890700A patent/FI90888B/en not_active Application Discontinuation
- 1989-09-18 JP JP1241667A patent/JPH02221482A/en active Pending
- 1989-09-18 CA CA000611773A patent/CA1339594C/en not_active Expired - Fee Related
- 1989-09-18 NO NO893714A patent/NO176406C/en not_active IP Right Cessation
- 1989-09-18 DE DE89117235T patent/DE68914135D1/en not_active Expired - Lifetime
- 1989-09-18 ES ES89117235T patent/ES2050747T3/en not_active Expired - Lifetime
- 1989-09-18 EP EP89117235A patent/EP0383999B1/en not_active Revoked
- 1989-09-18 AT AT89117235T patent/ATE103351T1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1086905A (en) * | 1977-10-25 | 1980-10-07 | W. Howard Rapson | Bleach plant operation |
WO1989008738A1 (en) * | 1988-03-14 | 1989-09-21 | Cultor Oy | Procedure for bleaching cellulose pulp |
Non-Patent Citations (1)
Title |
---|
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, vol. 57, no. 7, January 1987, page 992, abstract no. 8912; L. VIIKARI et al.: "Bleaching with enzymes". & INT. CONF. BIOTECHNOL. PULP AND PAPER IND. (STOCKHOLM) 3rd: 67-69 (June 16-19, 1986) * |
Also Published As
Publication number | Publication date |
---|---|
EP0383999B1 (en) | 1994-03-23 |
FI890700A (en) | 1990-08-15 |
NO893714D0 (en) | 1989-09-18 |
ES2050747T3 (en) | 1994-06-01 |
NO176406B (en) | 1994-12-19 |
JPH02221482A (en) | 1990-09-04 |
ATE103351T1 (en) | 1994-04-15 |
FI890700A0 (en) | 1989-02-14 |
FI90888B (en) | 1993-12-31 |
NO893714L (en) | 1990-08-15 |
NO176406C (en) | 1995-03-29 |
EP0383999A2 (en) | 1990-08-29 |
DE68914135D1 (en) | 1994-04-28 |
CA1339594C (en) | 1997-12-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0383999A3 (en) | Procedure for the bleaching of pulp | |
EP0395792A3 (en) | Procedure for the bleaching of pulp | |
FI893338A0 (en) | FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA. | |
FI99152B (en) | With hydrogen peroxide enhanced oxygen delignification | |
FI900549A0 (en) | FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA. | |
AU565124B2 (en) | Hypochlorite treatment of chemical paper pulps | |
DE3563548D1 (en) | Process for preparing chemical wood pulps with a view to bleaching | |
NZ217002A (en) | Delignification using acid and hydrogen peroxide |
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