ES2169132T3 - Metodo para la fabricacion de pasta de celulosa blanqueada. - Google Patents
Metodo para la fabricacion de pasta de celulosa blanqueada.Info
- Publication number
- ES2169132T3 ES2169132T3 ES95919252T ES95919252T ES2169132T3 ES 2169132 T3 ES2169132 T3 ES 2169132T3 ES 95919252 T ES95919252 T ES 95919252T ES 95919252 T ES95919252 T ES 95919252T ES 2169132 T3 ES2169132 T3 ES 2169132T3
- Authority
- ES
- Spain
- Prior art keywords
- cellulose pulp
- pct
- pulp
- bleaching
- treatment
- 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
- 229920002678 cellulose Polymers 0.000 title abstract 6
- 239000001913 cellulose Substances 0.000 title abstract 6
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 abstract 4
- 239000000725 suspension Substances 0.000 abstract 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 2
- 238000004061 bleaching Methods 0.000 abstract 2
- 239000007844 bleaching agent Substances 0.000 abstract 2
- 239000000460 chlorine Substances 0.000 abstract 2
- 229910052801 chlorine Inorganic materials 0.000 abstract 2
- 229910001882 dioxygen Inorganic materials 0.000 abstract 2
- 238000009896 oxidative bleaching Methods 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000005406 washing 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
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1042—Use of chelating agents
-
- 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
-
- 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
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Treatment Of Fiber Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
LA PRESENTE INVENCION SE REFIERE A UN METODO PARA LA MANUFACTURA DE PULPA DE CELULOSA BLANQUEADA, EN CONJUNCION CON EL CUAL UN MATERIAL DE LIGNOCELULOSA ES DIGERIDO PARA FORMAR PULPA DE CELULOSA POR MEDIO DE UN LICOR DE DIGESTION ALCALINO, Y LA PULPA DE CELULOSA EN FORMA DE SUSPENSION ES EXPUESTA EN SERIE A AL MENOS UNA DESLIGNIFICACION POR GAS DE OXIGENO (O), A UN TRATAMIENTO CON COMPLEJADORES (Q) Y A UN BLANQUEADO CON AGENTES BLANQUEADORES OXIDATIVOS QUE NO CONTIENEN CLORO (O, P, Z), CON LAS DIFERENTES ETAPAS DE TRATAMIENTOS ENTREMEZCLADAS CON EL LAVADO Y/O RECONCENTRACION DE LA PULPA DE CELULOSA EN AL MENOS UNA ETAPA, EN CONJUNCION CON LO CUAL UN LIQUIDO DE SUSPENSION ES TRANSPORTADO ESENCIALMENTE A ESTRICTA CONTRA CORRIENTE CON EL RESULTADO DE QUE EL PROCESO DE MANUFACTURACION DE LA PULPA ES DE FORMA ESENCIAL TOTALMENTE CERRADO A PESAR DEL CIRCUITO DE LIQUIDO, QUE SE CARACTERIZA EN QUE EL VALOR DEL PH DEL LIQUIDO DE SUSPENSION, EN AUSENCIA DE UN AGENTE DE REDUCCION, DESPUES DE LA DESLIGNIFICACION POR GAS OXIGENO Y AVANZANDO AL INTERIOR DE LA CADENA DE TRATAMIENTO DE PULPA DE CELULOSA TANTO COMO HASTA LA OPERACION DE BLANQUEADO CON EL AGENTE BLANQUEADOR OXIDATIVO, SE HACE PERMANECER A UN MAXIMO DE 10, Y EN QUE EL CONTENIDO DE CARBONATO DEL LIQUIDO DE SUSPENSION ES OBLIGADO A QUE SEA IGUAL QUE, O QUE EXCEDA DE UN CIERTO VALOR MINIMO DEPENDIENDO DE SU POSICION EN LA CADENA DE TRATAMIENTO DE PULPA DE CELULOSA.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9304173A SE502172C2 (sv) | 1993-12-15 | 1993-12-15 | Förfarande för framställning av blekt cellulosamassa med en klorfri bleksekvens i närvaro av karbonat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2169132T3 true ES2169132T3 (es) | 2002-07-01 |
Family
ID=20392113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES95919252T Expired - Lifetime ES2169132T3 (es) | 1993-12-15 | 1994-12-14 | Metodo para la fabricacion de pasta de celulosa blanqueada. |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US6126782A (es) |
| EP (1) | EP0734470B1 (es) |
| JP (1) | JPH09506680A (es) |
| AT (1) | ATE213794T1 (es) |
| AU (1) | AU678333B2 (es) |
| BR (1) | BR9408336A (es) |
| CA (1) | CA2178509A1 (es) |
| DE (1) | DE69430009T2 (es) |
| ES (1) | ES2169132T3 (es) |
| FI (1) | FI112507B (es) |
| NO (1) | NO962525L (es) |
| NZ (1) | NZ277585A (es) |
| PT (1) | PT734470E (es) |
| SE (1) | SE502172C2 (es) |
| WO (1) | WO1995016818A1 (es) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997027358A2 (en) * | 1995-12-07 | 1997-07-31 | Beloit Technologies, Inc. | Oxygen delignification of medium consistency pulp slurry |
| US6702921B2 (en) * | 2001-05-01 | 2004-03-09 | Ondeo Nalco Company | Methods to enhance pulp bleaching and delignification using an organic sulfide chelating agent |
| US8756791B2 (en) * | 2001-10-17 | 2014-06-24 | Eveready Battery Company, Inc. | Tampon applicator |
| US20030105421A1 (en) * | 2001-10-17 | 2003-06-05 | Playtex Products, Inc. | Tampon applicator |
| US20040000012A1 (en) * | 2002-06-26 | 2004-01-01 | Borregaard Chemcell | Treatment of a mixture containing cellulose |
| US9551076B2 (en) | 2011-05-31 | 2017-01-24 | Clean Chemistry, Inc. | Electrochemical reactor and process |
| US9517955B2 (en) | 2012-09-07 | 2016-12-13 | Clean Chemistry, Llc | System and method for generation of point of use reactive oxygen species |
| CN102852019B (zh) * | 2012-09-18 | 2014-08-20 | 四川理工学院 | 一种大千书画纸生产用竹浆的全无氯漂白方法 |
| WO2016037149A1 (en) | 2014-09-04 | 2016-03-10 | Clean Chemistry, Inc. | Method of water treatment utilizing a peracetate oxidant solution |
| WO2016154531A1 (en) | 2015-03-26 | 2016-09-29 | Clean Chemistry, Inc. | Systems and methods of reducing a bacteria population in high hydrogen sulfide water |
| CA3007780C (en) * | 2015-12-07 | 2023-12-19 | Clean Chemistry, Inc. | Methods of pulp fiber treatment |
| US10883224B2 (en) | 2015-12-07 | 2021-01-05 | Clean Chemistry, Inc. | Methods of pulp fiber treatment |
| US11136714B2 (en) | 2016-07-25 | 2021-10-05 | Clean Chemistry, Inc. | Methods of optical brightening agent removal |
| US11001864B1 (en) | 2017-09-07 | 2021-05-11 | Clean Chemistry, Inc. | Bacterial control in fermentation systems |
| US11311012B1 (en) | 2017-09-07 | 2022-04-26 | Clean Chemistry, Inc. | Bacterial control in fermentation systems |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988004706A1 (en) * | 1986-12-22 | 1988-06-30 | Aga Aktiebolag | Method for washing of alcaline pulp |
| ES2038097T5 (es) * | 1989-06-06 | 2001-05-01 | Eka Chemicals Ab | Procedimiento para blanquear pastas papeleras que contienen lignocelulosa. |
| SE466061B (sv) * | 1990-04-23 | 1991-12-09 | Eka Nobel Ab | Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne |
| DE69019350T2 (de) * | 1990-05-17 | 1996-02-15 | Union Camp Patent Holding | Umweltfreundlicheres verfahren zum bleichen von lignocellulosischen materialien. |
| SE468355B (sv) * | 1991-04-30 | 1992-12-21 | Eka Nobel Ab | Blekning av kemisk massa genom behandling med komplexbildare och ozon |
| SE469387B (sv) * | 1992-05-11 | 1993-06-28 | Kamyr Ab | Saett vid blekning av massa utan anvaendning av klorkemikalier |
| SE500113C2 (sv) * | 1992-07-09 | 1994-04-18 | Kamyr Ab | Sätt vid blekning av massa för omhändertagande av utlösta metaller |
| US5509999A (en) * | 1993-03-24 | 1996-04-23 | Kamyr, Inc. | Treatment of bleach plant effluents |
| US5639347A (en) * | 1993-03-24 | 1997-06-17 | Ahlstrom Machinery Inc. | Method of controlling of metals in a bleach plant, using oxidation |
| US5401362A (en) * | 1993-03-24 | 1995-03-28 | Kamyr, Inc. | Control of metals and dissolved organics in the bleach plant |
-
1993
- 1993-12-15 SE SE9304173A patent/SE502172C2/sv not_active IP Right Cessation
-
1994
- 1994-12-14 NZ NZ277585A patent/NZ277585A/en unknown
- 1994-12-14 EP EP95919252A patent/EP0734470B1/en not_active Expired - Lifetime
- 1994-12-14 DE DE69430009T patent/DE69430009T2/de not_active Expired - Fee Related
- 1994-12-14 CA CA002178509A patent/CA2178509A1/en not_active Abandoned
- 1994-12-14 PT PT95919252T patent/PT734470E/pt unknown
- 1994-12-14 US US08/663,047 patent/US6126782A/en not_active Expired - Fee Related
- 1994-12-14 AU AU12867/95A patent/AU678333B2/en not_active Ceased
- 1994-12-14 AT AT95919252T patent/ATE213794T1/de not_active IP Right Cessation
- 1994-12-14 BR BR9408336A patent/BR9408336A/pt not_active IP Right Cessation
- 1994-12-14 JP JP7516704A patent/JPH09506680A/ja not_active Ceased
- 1994-12-14 ES ES95919252T patent/ES2169132T3/es not_active Expired - Lifetime
- 1994-12-14 WO PCT/SE1994/001204 patent/WO1995016818A1/en active IP Right Grant
-
1996
- 1996-06-14 FI FI962477A patent/FI112507B/fi active
- 1996-06-14 NO NO962525A patent/NO962525L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| AU1286795A (en) | 1995-07-03 |
| SE9304173D0 (sv) | 1993-12-15 |
| AU678333B2 (en) | 1997-05-22 |
| FI112507B (fi) | 2003-12-15 |
| CA2178509A1 (en) | 1995-06-22 |
| WO1995016818A1 (en) | 1995-06-22 |
| NO962525L (no) | 1996-08-01 |
| FI962477A0 (fi) | 1996-06-14 |
| JPH09506680A (ja) | 1997-06-30 |
| NZ277585A (en) | 1997-05-26 |
| DE69430009T2 (de) | 2002-10-24 |
| NO962525D0 (no) | 1996-06-14 |
| US6126782A (en) | 2000-10-03 |
| SE502172C2 (sv) | 1995-09-04 |
| PT734470E (pt) | 2002-07-31 |
| ATE213794T1 (de) | 2002-03-15 |
| EP0734470B1 (en) | 2002-02-27 |
| BR9408336A (pt) | 1997-08-19 |
| SE9304173L (sv) | 1995-06-16 |
| FI962477A (fi) | 1996-08-14 |
| DE69430009D1 (de) | 2002-04-04 |
| EP0734470A1 (en) | 1996-10-02 |
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| PT754258E (pt) | Metodo para o tratamento de pasta com um agente de complexacao em conjugacao com uma etapa de tratamento com dioxido de cloro | |
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| SE9700992L (sv) | Förfarande för blekning av kraftmassa | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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