FI86896B - Foerfarande foer blekning av cellulosamassa. - Google Patents
Foerfarande foer blekning av cellulosamassa. Download PDFInfo
- Publication number
- FI86896B FI86896B FI892151A FI892151A FI86896B FI 86896 B FI86896 B FI 86896B FI 892151 A FI892151 A FI 892151A FI 892151 A FI892151 A FI 892151A FI 86896 B FI86896 B FI 86896B
- Authority
- FI
- Finland
- Prior art keywords
- bleaching
- pulp
- oxygen
- chlorine
- enzyme
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 claims abstract description 73
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000001301 oxygen Substances 0.000 claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 46
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 44
- 108090000790 Enzymes Proteins 0.000 claims abstract description 43
- 102000004190 Enzymes Human genes 0.000 claims abstract description 43
- 239000000126 substance Substances 0.000 claims abstract description 34
- 230000003647 oxidation Effects 0.000 claims abstract description 26
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 22
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 22
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000460 chlorine Substances 0.000 claims abstract description 17
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 16
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229940088598 enzyme Drugs 0.000 claims description 40
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 12
- 229920002678 cellulose Polymers 0.000 claims description 11
- 239000001913 cellulose Substances 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 8
- 238000009896 oxidative bleaching Methods 0.000 claims description 5
- 229940059442 hemicellulase Drugs 0.000 claims description 4
- 108010002430 hemicellulase Proteins 0.000 claims description 4
- 108010059892 Cellulase Proteins 0.000 claims description 3
- 108090000371 Esterases Proteins 0.000 claims description 3
- 108010059820 Polygalacturonase Proteins 0.000 claims description 3
- 229940106157 cellulase Drugs 0.000 claims description 3
- 108010093305 exopolygalacturonase Proteins 0.000 claims description 3
- 239000011122 softwood Substances 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract description 11
- 231100000167 toxic agent Toxicity 0.000 abstract description 2
- 239000007844 bleaching agent Substances 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 150000004045 organic chlorine compounds Chemical class 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 229920005610 lignin Polymers 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 229910021653 sulphate ion Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- VGVRPFIJEJYOFN-UHFFFAOYSA-N 2,3,4,6-tetrachlorophenol Chemical class OC1=C(Cl)C=C(Cl)C(Cl)=C1Cl VGVRPFIJEJYOFN-UHFFFAOYSA-N 0.000 description 2
- 101710121765 Endo-1,4-beta-xylanase Proteins 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002255 enzymatic effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 235000014347 soups Nutrition 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- RSPISYXLHRIGJD-UHFFFAOYSA-N OOOO Chemical compound OOOO RSPISYXLHRIGJD-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 244000155172 Podocarpus elatus Species 0.000 description 1
- 235000003209 Podocarpus elatus Nutrition 0.000 description 1
- 241000223259 Trichoderma Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 101150113965 carH gene Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 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
- D21C9/12—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)
- Bakery Products And Manufacturing Methods Therefor (AREA)
- Table Devices Or Equipment (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Hard Magnetic Materials (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Detergent Compositions (AREA)
Claims (11)
1. Förfarande för blekning av cellulosamassa, i vilket för-* farande syre används som den oxiderande blekningskemikalien, kännetecknat av att vid successiva stegen av blekningssekvens används hydrolytisk entsym och syre.
2. Förfarande för blekning av cellulosamassa, i vilket förfarande syre används som den oxiderande blekningskemikalien, kännetecknat av att före blekningssekvensens första steg används hydrolytisk entsym.
3. Förfarande enligt krav 1 eller 2, kännetecknat av att entsymbehandlingen utförs före det första oxiderings-steget.
4. Förfarande enligt krav 1 eller 2, kännetecknat av att entsymbehandlingen utförs efter det första oxiderings-steget.
5. Förfarande enligt nägot av föregäende krav, kännetecknat av att vid följande oxideringsstegen av blekningen används en klorhaltig blekningskemikalie, säsom klorgas och/eller klordioksid.
6. Förfarande enligt krav 5, kännetecknat av att mellan nämnda följande oxideringsstegen massan behandlas med ett alkali, säsom natriumhydroxid.
7. Förfarande enligt nägot av föregäende krav, kännetecknat av att den använda entsymen är hemi-cellulas, cellulas, pektinas, esteras eller deras blandning. 1 Förfarande enligt nägot av föregäende krav, kännetecknat av att entsymbehandlingen utförs pä 8 6 8 9 6 15 temperaturomrädet 10-90°C, företrädesvis 40-80°C, och i pH-värdet 3,0-10,0, företrädesvis 4,0-8,0.
9. Förfarande enligt n&got av föregäende krav, kännetecknat av att med detta förfarande blekae cellulosamassan som har erhällits frän barrträ.
10. Användning av entsym i blekningen av cellulosa, i vilket blekningskemikalien vid det första oxideringssteget best&r av syre.
11. Anvöndning av entsym enligt krav 10 för reducering av klorhalten i cellulosablekningsvattnet, när en klorhaltig kemikalie, säsom klorgas och/eller klordioxid, används vid det första oxideringssteget.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI892151A FI86896B (fi) | 1989-05-04 | 1989-05-04 | Foerfarande foer blekning av cellulosamassa. |
| JP1241666A JPH02293486A (ja) | 1989-05-04 | 1989-09-18 | パルプ漂白法 |
| AT89117233T ATE91518T1 (de) | 1989-05-04 | 1989-09-18 | Verfahren zum bleichen von zellstoff. |
| ES89117233T ES2045320T3 (es) | 1989-05-04 | 1989-09-18 | Procedimiento para el blanqueo de pasta papelera. |
| CA000611771A CA1339593C (en) | 1989-05-04 | 1989-09-18 | Procedure for the bleaching of pulp in which oxygen is used as the oxidating bleaching chemical |
| DE8989117233T DE68907593D1 (de) | 1989-05-04 | 1989-09-18 | Verfahren zum bleichen von zellstoff. |
| EP89117233A EP0395792B1 (en) | 1989-05-04 | 1989-09-18 | Procedure for the bleaching of pulp |
| NO893716A NO172355C (no) | 1989-05-04 | 1989-09-18 | Fremgangsmaate for bleking av masse |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI892151 | 1989-05-04 | ||
| FI892151A FI86896B (fi) | 1989-05-04 | 1989-05-04 | Foerfarande foer blekning av cellulosamassa. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI892151A0 FI892151A0 (fi) | 1989-05-04 |
| FI892151L FI892151L (fi) | 1990-11-05 |
| FI86896B true FI86896B (fi) | 1992-07-15 |
Family
ID=8528357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI892151A FI86896B (fi) | 1989-05-04 | 1989-05-04 | Foerfarande foer blekning av cellulosamassa. |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0395792B1 (sv) |
| JP (1) | JPH02293486A (sv) |
| AT (1) | ATE91518T1 (sv) |
| CA (1) | CA1339593C (sv) |
| DE (1) | DE68907593D1 (sv) |
| ES (1) | ES2045320T3 (sv) |
| FI (1) | FI86896B (sv) |
| NO (1) | NO172355C (sv) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991002840A1 (en) * | 1989-08-14 | 1991-03-07 | Cultor Oy | Improvement of oxygen bleaching of pulp |
| 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 (sv) * | 1991-05-07 | 2002-03-28 | Iogen Corp | Förfarande och anordning för användning av enzymer vid framställning och blekning av pappersmassa |
| US5785811A (en) * | 1992-11-09 | 1998-07-28 | The Mead Corporation | Process for treating lignocellulosic material with soybean peroxidase in the presence of peroxide |
| 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 |
| US5871730A (en) * | 1994-07-29 | 1999-02-16 | Universite De Sherbrooke | Thermostable xylanase DNA, protein 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 |
| US6942754B2 (en) | 1999-03-23 | 2005-09-13 | Oji Paper Co., Ltd. | Process for producing xylooligosaccharide from lignocellulose pulp |
| CA2301371C (en) * | 1999-03-23 | 2009-09-01 | Oji Paper Co., Ltd. | Process for bleaching lignocellulose pulp |
| 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 |
| WO2002052100A2 (en) | 2000-12-22 | 2002-07-04 | 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 (sv) * | 1989-02-14 | 1993-12-31 | Enso Gutzeit Oy | Förfarande för blekning av cellulosamassa |
-
1989
- 1989-05-04 FI FI892151A patent/FI86896B/fi not_active Application Discontinuation
- 1989-09-18 ES ES89117233T patent/ES2045320T3/es not_active Expired - Lifetime
- 1989-09-18 CA CA000611771A patent/CA1339593C/en not_active Expired - Fee Related
- 1989-09-18 DE DE8989117233T patent/DE68907593D1/de not_active Expired - Lifetime
- 1989-09-18 AT AT89117233T patent/ATE91518T1/de not_active IP Right Cessation
- 1989-09-18 EP EP89117233A patent/EP0395792B1/en not_active Revoked
- 1989-09-18 JP JP1241666A patent/JPH02293486A/ja active Pending
- 1989-09-18 NO NO893716A patent/NO172355C/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0395792A3 (en) | 1991-01-16 |
| EP0395792B1 (en) | 1993-07-14 |
| JPH02293486A (ja) | 1990-12-04 |
| NO172355B (no) | 1993-03-29 |
| NO893716L (no) | 1990-11-05 |
| FI892151A0 (fi) | 1989-05-04 |
| DE68907593D1 (de) | 1993-08-19 |
| CA1339593C (en) | 1997-12-23 |
| ATE91518T1 (de) | 1993-07-15 |
| NO172355C (no) | 1993-07-07 |
| NO893716D0 (no) | 1989-09-18 |
| FI892151L (fi) | 1990-11-05 |
| EP0395792A2 (en) | 1990-11-07 |
| ES2045320T3 (es) | 1994-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD | Application lapsed |
Owner name: ENSO GUTZEIT OY |