ES2003282A6 - Unn metodo para lavar pasta de papel celulosica alcalina - Google Patents
Unn metodo para lavar pasta de papel celulosica alcalinaInfo
- Publication number
- ES2003282A6 ES2003282A6 ES8701294A ES8701294A ES2003282A6 ES 2003282 A6 ES2003282 A6 ES 2003282A6 ES 8701294 A ES8701294 A ES 8701294A ES 8701294 A ES8701294 A ES 8701294A ES 2003282 A6 ES2003282 A6 ES 2003282A6
- Authority
- ES
- Spain
- Prior art keywords
- washing
- pulp
- alcaline
- ctmp
- realised
- 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
Links
- 238000005406 washing Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 abstract 1
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 229910001410 inorganic ion Inorganic materials 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
LA DESCRIPCION SE REFIERE A UN METODO PARA LAVAR PASTA DE PAPEL CELULOSICA ALCALINA, POR EJEMPLO DE PAPEL DE SULFATO, Y PASTA DE PAPEL CTMP Y CMP, EFECTUANDOSE EL LAVADO EN AL MENOS UNA ETAPA. POR ADICION DE DIOXIDO DE CARBONO, SE CONSEGUIRAN PERDIDAS DE LAVADO MUY REDUCIDAS, PRINCIPALMENTE, IONES INORGANICAS ASI COMO UNA MEJORA EN LA SEPARACION POR LAVADO DE SUSTANCIAS QUE DAN LUGAR A UNA DEMANDA QUIMICA DE OXIGENO (DQO).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8605510A SE8605510L (sv) | 1986-12-22 | 1986-12-22 | Sett vid tvettning av massa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2003282A6 true ES2003282A6 (es) | 1988-10-16 |
Family
ID=20366716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES8701294A Expired ES2003282A6 (es) | 1986-12-22 | 1987-04-30 | Unn metodo para lavar pasta de papel celulosica alcalina |
Country Status (11)
| Country | Link |
|---|---|
| AR (1) | AR242276A1 (es) |
| AU (2) | AU7352587A (es) |
| BR (1) | BR8707606A (es) |
| CA (1) | CA1286454C (es) |
| ES (1) | ES2003282A6 (es) |
| FI (1) | FI90256C (es) |
| MX (1) | MX167744B (es) |
| NZ (1) | NZ220101A (es) |
| PT (1) | PT84777B (es) |
| SE (1) | SE8605510L (es) |
| WO (1) | WO1988004705A1 (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI102911B1 (fi) * | 1997-06-13 | 1999-03-15 | Aga Ab | Menetelmä massasuspension pH:n stabiloimiseksi ja paperin tuottamiseksi stabiloidusta massasta |
| FI104503B (fi) * | 1997-11-05 | 2000-02-15 | Aga Ab | Menetelmä selluloosamassojen suotautuvuuden parantamiseksi |
| FI103520B (fi) | 1998-03-03 | 1999-07-15 | Upm Kymmene Corp | Parannetut paperinvalmistusmenetelmät |
| FI991241A7 (fi) * | 1999-06-01 | 2000-12-02 | Aga Ab | Ligniinin valkaisu ja menetelmä paperin valmistamiseksi |
| FI109209B (fi) * | 2000-04-05 | 2002-06-14 | Stora Enso Oyj | Menetelmä paperimassalietteen ligniininpoiston ja valkaisun hallintaan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI52876C (fi) * | 1974-09-03 | 1978-10-17 | Ahlstroem Oy | Foerfarande foer tvaettning av en cellulosamassa fraon alkalikok |
-
1986
- 1986-12-22 SE SE8605510A patent/SE8605510L/ not_active Application Discontinuation
-
1987
- 1987-04-16 WO PCT/SE1987/000198 patent/WO1988004705A1/en not_active Ceased
- 1987-04-16 AU AU73525/87A patent/AU7352587A/en not_active Abandoned
- 1987-04-27 NZ NZ220101A patent/NZ220101A/xx unknown
- 1987-04-28 PT PT84777A patent/PT84777B/pt active IP Right Revival
- 1987-04-28 CA CA000535740A patent/CA1286454C/en not_active Expired - Lifetime
- 1987-04-30 ES ES8701294A patent/ES2003282A6/es not_active Expired
- 1987-05-07 AR AR87307492A patent/AR242276A1/es active
- 1987-12-21 BR BR8707606A patent/BR8707606A/pt unknown
- 1987-12-21 AU AU10826/88A patent/AU1082688A/en not_active Abandoned
- 1987-12-22 MX MX010027A patent/MX167744B/es unknown
-
1988
- 1988-08-19 FI FI883851A patent/FI90256C/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE8605510D0 (sv) | 1986-12-22 |
| FI90256C (fi) | 1994-01-10 |
| FI883851A0 (fi) | 1988-08-19 |
| PT84777A (en) | 1987-05-01 |
| CA1286454C (en) | 1991-07-23 |
| SE8605510L (sv) | 1987-09-17 |
| AU7352587A (en) | 1988-07-15 |
| PT84777B (pt) | 1990-11-07 |
| BR8707606A (pt) | 1989-10-03 |
| FI90256B (fi) | 1993-09-30 |
| FI883851L (fi) | 1988-08-19 |
| AR242276A1 (es) | 1993-03-31 |
| MX167744B (es) | 1993-04-12 |
| NZ220101A (en) | 1989-04-26 |
| WO1988004705A1 (en) | 1988-06-30 |
| AU1082688A (en) | 1988-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3471087D1 (en) | Method of treating peroxide-containing wastewater | |
| MY115691A (en) | Water purification system and ultrapure water product | |
| CA2270524A1 (en) | Method of producing pulp using single-stage cooking with formic acid and washing with performic acid | |
| GR3007008T3 (es) | ||
| SE9302213D0 (sv) | Saett vid elektrolys | |
| FI855038A0 (fi) | Flerstegsfoerfarande foer blekning av hoegutbytes- och ultrahoegutbytesmassor. | |
| ATE98713T1 (de) | Verfahren zur herstellung von lignocellulosepulpe. | |
| EP0653491A4 (en) | PROCESS FOR INTRODUCING FOREIGN DNA INTO A CELL. | |
| GR3033058T3 (en) | Photoassisted oxidation of species in solution | |
| ES8107348A1 (es) | Un procedimiento para la regeneracion de papel usado sin de-sentintado | |
| CA1339594C (en) | Procedure for the bleaching of pulp involving enzyme treatment and the use in the oxidation stage of a chemical with at least 50% chlorine dioxide content | |
| ES2003282A6 (es) | Unn metodo para lavar pasta de papel celulosica alcalina | |
| AU560874B2 (en) | Use of substances giving off oxygen in reduction of dark colouring of pulp | |
| JPS5263198A (en) | Electrolysis method using ion exchange membrane | |
| ES8603607A1 (es) | Procedimiento para blanquear pastas papeleras quimicas | |
| SE8204364D0 (sv) | Kraft overload recovery process | |
| ES8706688A1 (es) | Procedimiento selectivo para la preparacion del isosorbido-5-mononitrato | |
| AU6449286A (en) | Process for bleaching chemical paper pulps | |
| SE9903417D0 (sv) | A process for the production of sulphate pulp | |
| SE9704273L (sv) | Nytt förfarande vid framställning av kemisk massa | |
| ES2000385A6 (es) | Un procedimiento para deslignificar materiales celulosicos | |
| EP0377981A3 (en) | Process for improved alkaline oxidative delignification of cellulose pulp | |
| ES8606557A1 (es) | Procedimiento para preparar pastas papeleras quimicas con vistas a su blanqueo | |
| JPS6431230A (en) | System for mixture-processing character code | |
| JPS5332962A (en) | Treatment of wastewater from wet-system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MH1A | Renunciation |
Free format text: 111193 |
|
| FD1A | Patent lapsed |
Effective date: 20070503 |