ES2067267T3 - Tratamiento de virutas con licor negro calentado. - Google Patents
Tratamiento de virutas con licor negro calentado.Info
- Publication number
- ES2067267T3 ES2067267T3 ES92107017T ES92107017T ES2067267T3 ES 2067267 T3 ES2067267 T3 ES 2067267T3 ES 92107017 T ES92107017 T ES 92107017T ES 92107017 T ES92107017 T ES 92107017T ES 2067267 T3 ES2067267 T3 ES 2067267T3
- Authority
- ES
- Spain
- Prior art keywords
- black liquor
- treatment
- digestor
- treatment vessel
- recovery
- 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
- 239000011521 glass Substances 0.000 abstract 2
- 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
- 238000000605 extraction Methods 0.000 abstract 1
- 239000002657 fibrous material 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
- 238000004326 stimulated echo acquisition mode for imaging 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)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Lubricants (AREA)
- Resistance Heating (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Auxiliary Devices For Music (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Steroid Compounds (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
SE PRESENTA UN METODO Y UN APARATO PARA LA PRODUCCION DE PULPA DE PAPEL KRAFT CON UN BAJO NUMERO CAPA (POR EJ. MENOR DE 20), Y UN LICOR NEGRO DE BAJA VISCOSIDAD QUE ES FACILMENTE TRANSPORTADO HASTA UNA ETAPA DE RECUPERACION O DESECHADO. EL MATERIAL FIBROSO CELULOSICO SE TRATA MEDIANTE VAPOR (EN 11), SE PASA HASTA UN VASO DE TRATAMIENTO (13, 113, 213), Y POSTERIORMENTE SE INTRODUCE EN LA PARTE SUPERIOR DE UN DIGESTOR CONTINUO (24, 124, 224). EL LICOR NEGRO SE EXTRAE DEL DIGESTOR (EN 32, 132, 232) Y SE CALIENTA (EN 35, 135, 235) ALREDEDOR DE ENTRE 20 Y 40 (GRADOS) C POR ENCIMA DE LA TEMPERATURA DE PROCESAMIENTO (POR EJ. HASTA ALREDEDOR DE 170 (GRADOS) C), Y SE INTRODUCE ENTONCES PARA SER PUESTO EN CONTACTO CON EL MATERIAL EN EL VASO DE TRATAMIENTO. DESPUES DE QUE EL MATERIAL HAYA SIDO TRATADO CON EL LICOR NEGRO, ESTE SE EXTRAE DEL VASO DE TRATAMIENTO (EN 17, 117, 217), Y SE HACE PASAR A LA ETAPA DE RECUPERACION O DESECHADO. EL LICOR BLANCO PUEDE INTRODUCIRSE EN EL VASO DE TRATAMIENTO (EN 18,118, 218) DESPUES DE LA EXTRACCION DEL LICOR NEGRO, DESPUES DE PASAR EN RELACION DE INTERCAMBIO DE CALOR (119, 219) CON EL LIQUIDO RECIRCULADO DESDE UN VASO DE IMPREGNACION HASTA UN ALIMENTADOR DE BAJA PRESION (21, 121, 221). SE PUEDE AÑADIR ALCALI AL LICOR NEGRO EXTRAIDO DEL DIGESTOR (EN 34), ANTES DE CALENTARLO, Y DESPUES DE CALENTARLO PUEDE HACER PASAR HASTA UN VASO DE REACCION (36, 136, 236).
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 (1)
Publication Number | Publication Date |
---|---|
ES2067267T3 true ES2067267T3 (es) | 1995-03-16 |
Family
ID=24992959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92107017T Expired - Lifetime ES2067267T3 (es) | 1991-08-14 | 1992-04-24 | Tratamiento de virutas con licor negro calentado. |
Country Status (13)
Country | Link |
---|---|
US (2) | US5213662A (es) |
EP (1) | EP0527294B1 (es) |
JP (1) | JPH05195462A (es) |
AT (1) | ATE115659T1 (es) |
AU (1) | AU1492392A (es) |
BR (1) | BR9203126A (es) |
CA (1) | CA2068165A1 (es) |
DE (1) | DE69200909D1 (es) |
ES (1) | ES2067267T3 (es) |
FI (1) | FI923255A (es) |
MX (1) | MX9204014A (es) |
NO (1) | NO923169L (es) |
ZA (1) | ZA922866B (es) |
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 |
US5824187A (en) * | 1993-12-29 | 1998-10-20 | Kvaerner Pulping Ab | Method for the continuous cooking of pulp |
SE502039C2 (sv) * | 1993-12-29 | 1995-07-24 | Kvaerner Pulping Tech | Sätt och anordning för kontinuerlig kokning av massa |
FI103898B (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 |
SE9403978L (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 |
SE529573C2 (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 |
MX2012005924A (es) * | 2009-11-24 | 2012-06-13 | Andritz Inc | Metodo y sistema para coccion con digestor de virutas delgadas. |
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 (es) * | 1967-09-18 | 1968-10-28 | Kamyr Ab | |
SE354302B (es) * | 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 |
EP0738343B1 (en) * | 1991-02-06 | 1999-09-29 | Ahlstrom Machinery Oy | 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 EP EP92107017A patent/EP0527294B1/en not_active Expired - Lifetime
- 1992-04-24 DE DE69200909T patent/DE69200909D1/de not_active Expired - Lifetime
- 1992-04-24 ES ES92107017T patent/ES2067267T3/es not_active Expired - Lifetime
- 1992-04-24 AT AT92107017T patent/ATE115659T1/de not_active IP Right Cessation
- 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 BR BR929203126A patent/BR9203126A/pt not_active Application Discontinuation
- 1992-08-13 NO NO92923169A patent/NO923169L/no unknown
-
1993
- 1993-04-27 US US08/052,756 patent/US5346591A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI923255A (fi) | 1993-02-15 |
CA2068165A1 (en) | 1993-02-15 |
ZA922866B (en) | 1992-12-30 |
EP0527294A1 (en) | 1993-02-17 |
ATE115659T1 (de) | 1994-12-15 |
NO923169L (no) | 1993-02-15 |
FI923255A0 (fi) | 1992-07-16 |
AU1492392A (en) | 1993-02-18 |
BR9203126A (pt) | 1993-03-30 |
DE69200909D1 (de) | 1995-01-26 |
EP0527294B1 (en) | 1994-12-14 |
MX9204014A (es) | 1993-02-01 |
US5213662A (en) | 1993-05-25 |
JPH05195462A (ja) | 1993-08-03 |
NO923169D0 (no) | 1992-08-13 |
US5346591A (en) | 1994-09-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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