CA1334581C - Procedure for bleaching cellulose pulp involving the use of combined enzyme treatment and a bleaching process employing chlorine chemicals - Google Patents
Procedure for bleaching cellulose pulp involving the use of combined enzyme treatment and a bleaching process employing chlorine chemicalsInfo
- Publication number
- CA1334581C CA1334581C CA000593523A CA593523A CA1334581C CA 1334581 C CA1334581 C CA 1334581C CA 000593523 A CA000593523 A CA 000593523A CA 593523 A CA593523 A CA 593523A CA 1334581 C CA1334581 C CA 1334581C
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- bleaching
- enzyme
- chlorine
- bleached
- 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 - Lifetime
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
-
- 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
- D21C9/1026—Other features in bleaching processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Hard Magnetic Materials (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI881192A FI81395B (fi) | 1988-03-14 | 1988-03-14 | Foerfarande foer blekning av cellulosamassa. |
FI881192 | 1988-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1334581C true CA1334581C (en) | 1995-02-28 |
Family
ID=8526077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000593523A Expired - Lifetime CA1334581C (en) | 1988-03-14 | 1989-03-13 | Procedure for bleaching cellulose pulp involving the use of combined enzyme treatment and a bleaching process employing chlorine chemicals |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0407421B1 (de) |
JP (1) | JPH03505758A (de) |
AT (1) | ATE135429T1 (de) |
AU (1) | AU626846B2 (de) |
BR (1) | BR8907314A (de) |
CA (1) | CA1334581C (de) |
DE (1) | DE68925967T2 (de) |
DK (1) | DK175185B1 (de) |
FI (1) | FI81395B (de) |
NO (1) | NO174722C (de) |
NZ (1) | NZ228308A (de) |
WO (1) | WO1989008738A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5298405A (en) * | 1986-04-30 | 1994-03-29 | Alko Limited | Enzyme preparations with recombinantly-altered cellulose profiles and methods for their production |
FI90888B (fi) * | 1989-02-14 | 1993-12-31 | Enso Gutzeit Oy | Menetelmä selluloosamassan valkaisemiseksi |
FI86896B (fi) * | 1989-05-04 | 1992-07-15 | Enso Gutzeit Oy | Foerfarande foer blekning av cellulosamassa. |
DK420289D0 (da) * | 1989-08-25 | 1989-08-25 | Novo Nordisk As | Fremgangsmaade til behandling af lignocellulosepulp |
NZ235679A (en) * | 1989-10-18 | 1993-01-27 | Int Paper Co | Bleaching lignocellulosic pulp using (a) treatment with xylanase and (b) one or more chemical bleaching stages |
SE465320B (sv) * | 1990-01-10 | 1991-08-26 | Korsnaes Ab | Preparat som uppvisar enzymatisk delignifieringsaktivitet, saett att framstaella detsamma och tillaempningar daerav |
FI88315C (fi) * | 1990-04-04 | 1993-04-26 | 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 |
GB9018426D0 (en) * | 1990-08-22 | 1990-10-03 | Sandoz Ltd | Improvements in or relating to novel compounds |
NZ239500A (en) * | 1990-08-24 | 1993-08-26 | Novo Nordisk As | Xylanases obtained from bacillus pumilus and use in a lignocellulosic chemical pulping process |
DE4129739A1 (de) * | 1990-09-11 | 1992-03-12 | Sandoz Ag | Chlorfreies bleichen von papierpulpe |
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 |
US6300114B1 (en) | 1994-07-29 | 2001-10-09 | Rohm Enzyme Finland Oy | Sequences of xylanase and xylanase expression vectors |
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 |
US5935836A (en) * | 1994-07-29 | 1999-08-10 | Rohm Enzyme Finland Oy | Actinomadura xylanase sequences and methods of use |
US7320741B2 (en) | 2001-01-18 | 2008-01-22 | Iogen Bio-Products Corporation | Method of xylanase treatment in a chlorine dioxide bleaching sequence |
WO2003074780A1 (en) * | 2002-03-06 | 2003-09-12 | Iogen Bio-Products Corporation | Xylanase treatment of chemical pulp |
CN104963206A (zh) * | 2014-12-11 | 2015-10-07 | 华东理工常熟研究院有限公司 | 酶改性纸浆纤维、木塑复合材料及其制备方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ216726A (en) * | 1985-07-15 | 1990-08-28 | Repligen Corp | Use of lignin-degrading enzymes from phanerochaete chrysosporium for treatment of wood pulp and e1 effluent |
ZA894239B (en) * | 1988-06-08 | 1990-03-28 | Int Paper Co | Enzymatic delignification of lignocellulosic material |
CA2003503A1 (en) * | 1988-11-23 | 1990-05-23 | Roberta Lee Farrell | Use of aureobasidium pullulans in pulp bleaching |
-
1988
- 1988-03-14 FI FI881192A patent/FI81395B/fi not_active Application Discontinuation
-
1989
- 1989-03-13 EP EP89903748A patent/EP0407421B1/de not_active Revoked
- 1989-03-13 AU AU32923/89A patent/AU626846B2/en not_active Ceased
- 1989-03-13 AT AT89903748T patent/ATE135429T1/de active
- 1989-03-13 CA CA000593523A patent/CA1334581C/en not_active Expired - Lifetime
- 1989-03-13 WO PCT/FI1989/000045 patent/WO1989008738A1/en not_active Application Discontinuation
- 1989-03-13 BR BR898907314A patent/BR8907314A/pt not_active IP Right Cessation
- 1989-03-13 JP JP1502856A patent/JPH03505758A/ja active Pending
- 1989-03-13 DE DE68925967T patent/DE68925967T2/de not_active Revoked
- 1989-03-13 NZ NZ228308A patent/NZ228308A/xx unknown
-
1990
- 1990-09-04 DK DK199002119A patent/DK175185B1/da not_active IP Right Cessation
- 1990-09-07 NO NO903913A patent/NO174722C/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BR8907314A (pt) | 1991-03-19 |
NO174722C (no) | 1994-06-22 |
WO1989008738A1 (en) | 1989-09-21 |
EP0407421B1 (de) | 1996-03-13 |
DK211990D0 (da) | 1990-09-04 |
NZ228308A (en) | 1990-06-26 |
ATE135429T1 (de) | 1996-03-15 |
DE68925967T2 (de) | 1996-09-12 |
FI881192A (fi) | 1989-09-15 |
NO174722B (no) | 1994-03-14 |
DE68925967D1 (de) | 1996-04-18 |
FI81395B (fi) | 1990-06-29 |
DK211990A (da) | 1990-11-07 |
EP0407421A1 (de) | 1991-01-16 |
FI881192A0 (fi) | 1988-03-14 |
AU626846B2 (en) | 1992-08-13 |
NO903913D0 (no) | 1990-09-07 |
AU3292389A (en) | 1989-10-05 |
JPH03505758A (ja) | 1991-12-12 |
DK175185B1 (da) | 2004-06-28 |
NO903913L (no) | 1990-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1334581C (en) | Procedure for bleaching cellulose pulp involving the use of combined enzyme treatment and a bleaching process employing chlorine chemicals | |
JPS61138793A (ja) | 強化酸化抽出法 | |
CA1339593C (en) | Procedure for the bleaching of pulp in which oxygen is used as the oxidating bleaching chemical | |
EP0383999B1 (de) | Verfahren zum Bleichen von Zellstoff | |
GB2248075A (en) | Bleaching chemical pulp | |
EP0513140B2 (de) | Verfahren zum bleichen von chemischem papierzellstoff | |
NO175105B (no) | Fremgangsmåte for bleking av masse | |
JPH08218290A (ja) | 非塩素漂白パルプの製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |