FI923255A0 - Foerfarande och anordning foer fram- staellning av massa. - Google Patents
Foerfarande och anordning foer fram- staellning av massa.Info
- Publication number
- FI923255A0 FI923255A0 FI923255A FI923255A FI923255A0 FI 923255 A0 FI923255 A0 FI 923255A0 FI 923255 A FI923255 A FI 923255A FI 923255 A FI923255 A FI 923255A FI 923255 A0 FI923255 A0 FI 923255A0
- Authority
- FI
- Finland
- Prior art keywords
- black liquor
- treatment vessel
- withdrawn
- passed
- digester
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000011084 recovery Methods 0.000 abstract 2
- 229920001131 Pulp (paper) Polymers 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 238000010411 cooking Methods 0.000 abstract 1
- 239000002657 fibrous material Substances 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 239000002655 kraft paper Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 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
- 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
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
Landscapes
- Paper (AREA)
- Lubricants (AREA)
- Resistance Heating (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Steroid Compounds (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Auxiliary Devices For Music (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/744,506 US5213662A (en) | 1991-08-14 | 1991-08-14 | Treatment of chips with high temperature black liquor to reduce black liquor viscosity |
Publications (2)
Publication Number | Publication Date |
---|---|
FI923255A0 true FI923255A0 (fi) | 1992-07-16 |
FI923255A FI923255A (fi) | 1993-02-15 |
Family
ID=24992959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI923255A FI923255A (fi) | 1991-08-14 | 1992-07-16 | Foerfarande och anordning foer framstaellning av massa |
Country Status (13)
Country | Link |
---|---|
US (2) | US5213662A (fi) |
EP (1) | EP0527294B1 (fi) |
JP (1) | JPH05195462A (fi) |
AT (1) | ATE115659T1 (fi) |
AU (1) | AU1492392A (fi) |
BR (1) | BR9203126A (fi) |
CA (1) | CA2068165A1 (fi) |
DE (1) | DE69200909D1 (fi) |
ES (1) | ES2067267T3 (fi) |
FI (1) | FI923255A (fi) |
MX (1) | MX9204014A (fi) |
NO (1) | NO923169L (fi) |
ZA (1) | ZA922866B (fi) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT398588B (de) * | 1992-12-02 | 1994-12-27 | Voest Alpine Ind Anlagen | Verfahren zur herstellung von viskosezellstoffen |
US5489363A (en) * | 1993-05-04 | 1996-02-06 | Kamyr, Inc. | Pulping with low dissolved solids for improved pulp strength |
SE502039C2 (sv) * | 1993-12-29 | 1995-07-24 | Kvaerner Pulping Tech | Sätt och anordning för kontinuerlig kokning av massa |
US5824187A (en) * | 1993-12-29 | 1998-10-20 | Kvaerner Pulping Ab | Method for the continuous cooking of pulp |
FI103898B1 (fi) * | 1994-01-24 | 1999-10-15 | Sunds Defibrator Pori Oy | Menetelmä prehydrolysoidun sellun ja/tai sellumassan tuottamiseksi |
SE9401769L (sv) * | 1994-05-24 | 1995-11-25 | Nils Mannbro | Flisimpregnering vid pappersmassakokning med sulfidiskt alkali |
US5925216A (en) * | 1994-11-15 | 1999-07-20 | Kvaerner Pulping Ab | Method of continuous pulping in a digester with high black liquor usage in the impregnation stage |
SE502510C2 (sv) * | 1994-11-15 | 1995-11-06 | Kvaerner Pulping Tech | Svartlutsimpregnering i enkärlshydraulkokare |
US5635027A (en) * | 1995-04-03 | 1997-06-03 | North Carolina State University | Method of reducing the viscosity of a black liquor |
SE505528C2 (sv) * | 1995-04-28 | 1997-09-15 | Kvaerner Pulping Tech | Impregnering av flis med het svartlut i ett kontinuerligt enkärlssystem |
US6248208B1 (en) | 1995-06-02 | 2001-06-19 | Andritz-Ahlstrom Inc. | Pretreatment of chips before cooking |
SE506703C2 (sv) | 1995-07-12 | 1998-02-02 | Kvaerner Pulping Tech | Impregnering av fibermaterial i medström vid kontinuerlig kokning |
US5658428A (en) * | 1995-10-19 | 1997-08-19 | Kvaerner Pulping Technologies Ab | Method for impregnation in a single-vessel hydraulic digester |
US5736006A (en) * | 1996-10-10 | 1998-04-07 | Ahlstrom Machinery Inc. | Method and apparatus for pulping with controlled heating to improve delignification and pulp strength |
US6159336A (en) * | 1997-08-07 | 2000-12-12 | Kvaerner Pulping Ab | Method and device for the continuous cooking of pulp |
US5985096A (en) * | 1997-09-23 | 1999-11-16 | Ahlstrom Machinery Inc. | Vertical pulping digester having substantially constant diameter |
SE0200185L (sv) * | 2002-01-24 | 2002-12-10 | Kvaerner Pulping Tech | Förfarande för att öka värmeekonomin i kokarsystemet vid kontinuerlig kokning |
SE0602675L (sv) * | 2006-12-13 | 2007-09-18 | Metso Fiber Karlstad Ab | Metod för att energieffektivt producera cellulosamassa i ett kontinuerligt kokeri |
US8444809B2 (en) * | 2007-06-25 | 2013-05-21 | Andritz Inc. | Method and system for direct contact of hot liquor with wood chips in transfer circulation |
US20100263813A1 (en) * | 2009-04-21 | 2010-10-21 | Andritz Inc. | Green liquor pretreatment of lignocellulosic material |
RU2555655C2 (ru) * | 2009-11-24 | 2015-07-10 | Андритц Инк. | Способ и система для варки тонкой щепы в варочном котле |
SE539449C2 (en) * | 2015-11-16 | 2017-09-26 | Valmet Oy | Method for heating cellulosic material to full cooking temperature in digesters |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE305582B (fi) * | 1967-09-18 | 1968-10-28 | Kamyr Ab | |
SE354302B (fi) * | 1972-03-21 | 1973-03-05 | Kamyr Ab | |
FI75615C (fi) * | 1985-11-29 | 1991-08-26 | Ahlstroem Oy | Foerfarande foer saenkning av svartlutens viskositet. |
SE463316B (sv) * | 1988-01-14 | 1990-11-05 | Ahlstroem Foeretagen | Foerfarande och anordning foer indunstning av avlut i samband med kokning av cellulosahaltigt fibermaterial i en kontinuerlig kokare |
SE468053B (sv) * | 1988-12-20 | 1992-10-26 | Kamyr Ab | Saett vid kontinuerlig uppslutningskokning av cellulosahaltigt fibermaterial |
US4953607A (en) * | 1989-02-17 | 1990-09-04 | A. Ahlstrom | Multistage evaporating system |
US5053108A (en) * | 1989-06-28 | 1991-10-01 | Kamyr Ab | High sulfidity cook for paper pulp using black liquor sulfonization of steamed chips |
AU1765892A (en) * | 1991-02-06 | 1992-09-07 | A. Ahlstrom Corporation | A method of recovering energy and chemicals from black liquor |
-
1991
- 1991-08-14 US US07/744,506 patent/US5213662A/en not_active Expired - Fee Related
-
1992
- 1992-04-15 AU AU14923/92A patent/AU1492392A/en not_active Abandoned
- 1992-04-21 ZA ZA922866A patent/ZA922866B/xx unknown
- 1992-04-24 DE DE69200909T patent/DE69200909D1/de not_active Expired - Lifetime
- 1992-04-24 EP EP92107017A patent/EP0527294B1/en not_active Expired - Lifetime
- 1992-04-24 AT AT92107017T patent/ATE115659T1/de not_active IP Right Cessation
- 1992-04-24 ES ES92107017T patent/ES2067267T3/es not_active Expired - Lifetime
- 1992-05-07 CA CA002068165A patent/CA2068165A1/en not_active Abandoned
- 1992-06-24 JP JP4166133A patent/JPH05195462A/ja not_active Withdrawn
- 1992-07-08 MX MX9204014A patent/MX9204014A/es unknown
- 1992-07-16 FI FI923255A patent/FI923255A/fi unknown
- 1992-08-13 NO NO92923169A patent/NO923169L/no unknown
- 1992-08-13 BR BR929203126A patent/BR9203126A/pt not_active Application Discontinuation
-
1993
- 1993-04-27 US US08/052,756 patent/US5346591A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
BR9203126A (pt) | 1993-03-30 |
US5213662A (en) | 1993-05-25 |
MX9204014A (es) | 1993-02-01 |
DE69200909D1 (de) | 1995-01-26 |
FI923255A (fi) | 1993-02-15 |
ZA922866B (en) | 1992-12-30 |
NO923169L (no) | 1993-02-15 |
AU1492392A (en) | 1993-02-18 |
US5346591A (en) | 1994-09-13 |
NO923169D0 (no) | 1992-08-13 |
ES2067267T3 (es) | 1995-03-16 |
ATE115659T1 (de) | 1994-12-15 |
EP0527294A1 (en) | 1993-02-17 |
EP0527294B1 (en) | 1994-12-14 |
CA2068165A1 (en) | 1993-02-15 |
JPH05195462A (ja) | 1993-08-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HC | Name/ company changed in application |
Owner name: AHLSTROM MACHINERY INC. |