FI893338A0 - Foerfarande foer blekning av cellulosamassa. - Google Patents
Foerfarande foer blekning av cellulosamassa.Info
- Publication number
- FI893338A0 FI893338A0 FI893338A FI893338A FI893338A0 FI 893338 A0 FI893338 A0 FI 893338A0 FI 893338 A FI893338 A FI 893338A FI 893338 A FI893338 A FI 893338A FI 893338 A0 FI893338 A0 FI 893338A0
- Authority
- FI
- Finland
- Prior art keywords
- chlorine
- procedure
- bleaching
- oxidating
- pulp
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Noodles (AREA)
- Hard Magnetic Materials (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Cereal-Derived Products (AREA)
- Table Devices Or Equipment (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI893338A FI88316C (fi) | 1989-07-10 | 1989-07-10 | Foerfarande foer blekning av cellulosamassa |
AT89117234T ATE100157T1 (de) | 1989-07-10 | 1989-09-18 | Verfahren zum bleichen von sulfatzellstoff. |
NO893715A NO175105C (no) | 1989-07-10 | 1989-09-18 | Fremgangsmåte for bleking av masse |
DE89117234T DE68912322D1 (de) | 1989-07-10 | 1989-09-18 | Verfahren zum Bleichen von Sulfatzellstoff. |
EP89117234A EP0408803B1 (en) | 1989-07-10 | 1989-09-18 | Procedure for the bleaching of sulphate pulp |
CA000611772A CA1335184C (en) | 1989-07-10 | 1989-09-18 | Procedure for the bleaching of pulp involving the use of laccase, a lignin-modifying oxidation-reduction enzyme |
JP1241665A JP2831048B2 (ja) | 1989-07-10 | 1989-09-18 | パルプ漂白法 |
ES89117234T ES2061857T3 (es) | 1989-07-10 | 1989-09-18 | Procedimiento para el blanqueo de pasta papelera. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI893338A FI88316C (fi) | 1989-07-10 | 1989-07-10 | Foerfarande foer blekning av cellulosamassa |
FI893338 | 1989-07-10 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI893338A0 true FI893338A0 (fi) | 1989-07-10 |
FI893338A FI893338A (fi) | 1991-01-11 |
FI88316B FI88316B (fi) | 1993-01-15 |
FI88316C FI88316C (fi) | 1993-04-26 |
Family
ID=8528744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI893338A FI88316C (fi) | 1989-07-10 | 1989-07-10 | Foerfarande foer blekning av cellulosamassa |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0408803B1 (fi) |
JP (1) | JP2831048B2 (fi) |
AT (1) | ATE100157T1 (fi) |
CA (1) | CA1335184C (fi) |
DE (1) | DE68912322D1 (fi) |
ES (1) | ES2061857T3 (fi) |
FI (1) | FI88316C (fi) |
NO (1) | NO175105C (fi) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI108800B (fi) * | 1991-05-07 | 2002-03-28 | Iogen Corp | Menetelmä ja laitteisto entsyymin käyttämiseksi paperimassan valmistuksessa ja valkaisussa |
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 |
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 |
CA2115881C (en) * | 1993-02-25 | 2000-05-23 | Michael G. Paice | Non-chlorine bleaching of kraft pulp |
US5480801A (en) * | 1993-09-17 | 1996-01-02 | Novo Nordisk A/S | Purified PH neutral Rhizoctonia laccases and nucleic acids encoding same |
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 |
US6942754B2 (en) | 1999-03-23 | 2005-09-13 | Oji Paper Co., Ltd. | Process for producing xylooligosaccharide from lignocellulose pulp |
FI113879B (fi) | 2000-05-23 | 2004-06-30 | Valtion Teknillinen | Uusi lakkaasientsyymi |
ES2221529B1 (es) * | 2002-07-10 | 2005-11-01 | Instituto Nacional De Investigacion Y Tecnologia Agraria Y Alimentaria (Inia) | Procedimiento para la deslignificacion de pastas de celulosa. |
CN109537343A (zh) * | 2018-11-29 | 2019-03-29 | 崔雪柯 | 一种纸浆气水分离工艺 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3636208A1 (de) * | 1986-10-24 | 1988-05-05 | Call Hans Peter | Verfahren zur delignifizierung und bleichung von lignicellulosehaltigem bzw. ligninhaltigem material bzw. lignin durch enzymatische behandlung |
-
1989
- 1989-07-10 FI FI893338A patent/FI88316C/fi active IP Right Grant
- 1989-09-18 DE DE89117234T patent/DE68912322D1/de not_active Expired - Lifetime
- 1989-09-18 NO NO893715A patent/NO175105C/no not_active IP Right Cessation
- 1989-09-18 ES ES89117234T patent/ES2061857T3/es not_active Expired - Lifetime
- 1989-09-18 AT AT89117234T patent/ATE100157T1/de not_active IP Right Cessation
- 1989-09-18 EP EP89117234A patent/EP0408803B1/en not_active Expired - Lifetime
- 1989-09-18 JP JP1241665A patent/JP2831048B2/ja not_active Expired - Lifetime
- 1989-09-18 CA CA000611772A patent/CA1335184C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2061857T3 (es) | 1994-12-16 |
EP0408803B1 (en) | 1994-01-12 |
NO893715L (no) | 1991-01-11 |
DE68912322D1 (de) | 1994-02-24 |
NO175105C (no) | 1994-08-31 |
NO893715D0 (no) | 1989-09-18 |
JPH03130485A (ja) | 1991-06-04 |
JP2831048B2 (ja) | 1998-12-02 |
FI893338A (fi) | 1991-01-11 |
EP0408803A1 (en) | 1991-01-23 |
NO175105B (no) | 1994-05-24 |
ATE100157T1 (de) | 1994-01-15 |
FI88316C (fi) | 1993-04-26 |
CA1335184C (en) | 1995-04-11 |
FI88316B (fi) | 1993-01-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0383999A3 (en) | Procedure for the bleaching of pulp | |
EP0395792A3 (en) | Procedure for the bleaching of pulp | |
FI893338A0 (fi) | Foerfarande foer blekning av cellulosamassa. | |
AU3292389A (en) | Bleaching cellulose pulp from hardwood using chlorine and enzymes | |
FI900549A (fi) | Foerfarande foer blekning av cellulosamassa. | |
FI99152B (fi) | Vetyperoksidilla tehostettu happidelignifiointi | |
DE3563548D1 (en) | Process for preparing chemical wood pulps with a view to bleaching | |
ES2004389A6 (es) | Un metodo mejorado de deslignificacion y blanqueo secuenciales de pasta de papel lignocelulosica |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
FG | Patent granted |
Owner name: ENSO GUTZEIT OY |