PT100799A - Processo para a digestao continua de material de fibra celulosica - Google Patents
Processo para a digestao continua de material de fibra celulosica Download PDFInfo
- Publication number
- PT100799A PT100799A PT100799A PT10079992A PT100799A PT 100799 A PT100799 A PT 100799A PT 100799 A PT100799 A PT 100799A PT 10079992 A PT10079992 A PT 10079992A PT 100799 A PT100799 A PT 100799A
- Authority
- PT
- Portugal
- Prior art keywords
- liquid
- impregnation
- digestion
- withdrawn
- digester
- Prior art date
Links
- 230000029087 digestion Effects 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000002657 fibrous material Substances 0.000 title claims abstract description 15
- 229920003043 Cellulose fiber Polymers 0.000 title 1
- 239000007788 liquid Substances 0.000 claims abstract description 121
- 238000005470 impregnation Methods 0.000 claims abstract description 75
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract 6
- 239000000243 solution Substances 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 2
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 2
- 150000004056 anthraquinones Chemical class 0.000 claims description 2
- 239000011344 liquid material Substances 0.000 claims description 2
- 229920001021 polysulfide Polymers 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000011221 initial treatment Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- -1 methanol and ethanol Chemical class 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 claims 1
- 150000002894 organic compounds Chemical class 0.000 claims 1
- 238000010025 steaming Methods 0.000 abstract 1
- 230000004087 circulation Effects 0.000 description 16
- 239000002023 wood Substances 0.000 description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 238000010411 cooking Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 241000227425 Pieris rapae crucivora Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000000184 acid digestion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/24—Continuous processes
-
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
Landscapes
- Paper (AREA)
- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9102427A SE469078B (sv) | 1991-08-23 | 1991-08-23 | Saett vid kontinuerlig kokning av cellulosahaltigt fibermaterial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PT100799A true PT100799A (pt) | 1994-05-31 |
Family
ID=20383529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT100799A PT100799A (pt) | 1991-08-23 | 1992-08-21 | Processo para a digestao continua de material de fibra celulosica |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0662169B1 (de) |
| JP (1) | JPH06510091A (de) |
| AT (1) | ATE145025T1 (de) |
| AU (1) | AU2490392A (de) |
| CA (1) | CA2115578A1 (de) |
| DE (1) | DE69215110T2 (de) |
| FI (1) | FI940826A0 (de) |
| ID (1) | ID848B (de) |
| PT (1) | PT100799A (de) |
| SE (1) | SE469078B (de) |
| WO (1) | WO1993004232A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5413677A (en) * | 1993-04-05 | 1995-05-09 | Kamyr, Inc. | Method for producing chemical pulp from hardwood chips |
| SE506703C2 (sv) | 1995-07-12 | 1998-02-02 | Kvaerner Pulping Tech | Impregnering av fibermaterial i medström vid kontinuerlig kokning |
| US7297236B1 (en) | 2001-06-30 | 2007-11-20 | Icm, Inc. | Ethanol distillation process |
| SE527058C2 (sv) * | 2004-02-09 | 2005-12-13 | Kvaerner Pulping Tech | Kontinuerlig kokprocess med förbättrad värmeekonomi |
| SE529573C2 (sv) * | 2006-12-13 | 2007-09-18 | Metso Fiber Karlstad Ab | Metod för att energieffektivt producera cellulosamassa i ett kontinuerligt kokeri |
| US9644317B2 (en) | 2014-11-26 | 2017-05-09 | International Paper Company | Continuous digester and feeding system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE359331B (de) * | 1970-03-17 | 1973-08-27 | Kamyr Ab | |
| SE468053B (sv) * | 1988-12-20 | 1992-10-26 | Kamyr Ab | Saett vid kontinuerlig uppslutningskokning av cellulosahaltigt fibermaterial |
-
1991
- 1991-08-23 SE SE9102427A patent/SE469078B/sv not_active IP Right Cessation
-
1992
- 1992-08-11 AU AU24903/92A patent/AU2490392A/en not_active Abandoned
- 1992-08-11 JP JP5504253A patent/JPH06510091A/ja active Pending
- 1992-08-11 WO PCT/SE1992/000546 patent/WO1993004232A1/en not_active Ceased
- 1992-08-11 DE DE69215110T patent/DE69215110T2/de not_active Expired - Fee Related
- 1992-08-11 AT AT92918282T patent/ATE145025T1/de not_active IP Right Cessation
- 1992-08-11 EP EP92918282A patent/EP0662169B1/de not_active Expired - Lifetime
- 1992-08-11 CA CA002115578A patent/CA2115578A1/en not_active Abandoned
- 1992-08-21 PT PT100799A patent/PT100799A/pt not_active Application Discontinuation
- 1992-08-21 ID IDP460392A patent/ID848B/id unknown
-
1994
- 1994-02-22 FI FI940826A patent/FI940826A0/fi not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE69215110T2 (de) | 1997-04-03 |
| AU2490392A (en) | 1993-03-16 |
| SE469078B (sv) | 1993-05-10 |
| WO1993004232A1 (en) | 1993-03-04 |
| CA2115578A1 (en) | 1993-03-04 |
| FI940826A7 (fi) | 1994-02-22 |
| SE9102427L (sv) | 1993-02-24 |
| JPH06510091A (ja) | 1994-11-10 |
| ATE145025T1 (de) | 1996-11-15 |
| EP0662169B1 (de) | 1996-11-06 |
| FI940826A0 (fi) | 1994-02-22 |
| DE69215110D1 (de) | 1996-12-12 |
| SE9102427D0 (sv) | 1991-08-23 |
| EP0662169A1 (de) | 1995-07-12 |
| ID848B (id) | 1996-08-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB1A | Laying open of patent application |
Effective date: 19931022 |
|
| FC3A | Refusal |
Effective date: 19990429 |