MX167744B - Un metodo para lavar pasta de papel celulosica alclina - Google Patents
Un metodo para lavar pasta de papel celulosica alclinaInfo
- Publication number
- MX167744B MX167744B MX1002787A MX1002787A MX167744B MX 167744 B MX167744 B MX 167744B MX 1002787 A MX1002787 A MX 1002787A MX 1002787 A MX1002787 A MX 1002787A MX 167744 B MX167744 B MX 167744B
- Authority
- MX
- Mexico
- Prior art keywords
- washing
- alcline
- paper pulp
- cellulose paper
- stage
- Prior art date
Links
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 presente invención se refiere a un método para lavar pasta de papel celulósica alcalina, en el que el lavado se efectúa en una o más etapas consecutivas, caracterizado porque se disminuye el pH en la etapa de lavado, o al menos en una etapa de lavado.
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 |
---|---|
MX167744B true MX167744B (es) | 1993-04-12 |
Family
ID=20366716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX1002787A MX167744B (es) | 1986-12-22 | 1987-12-22 | Un metodo para lavar pasta de papel celulosica alclina |
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 |
---|---|---|---|---|
FI102911B (fi) * | 1997-06-13 | 1999-03-15 | Aga Ab | Menetelmä massasuspension pH:n stabiloimiseksi ja paperin tuottamiseks i 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 |
FI991241A (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 unknown
- 1987-04-16 AU AU73525/87A patent/AU7352587A/en not_active Abandoned
- 1987-04-27 NZ NZ22010187A patent/NZ220101A/xx unknown
- 1987-04-28 PT PT8477787A 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 AR30749287A 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 MX1002787A 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 |
---|---|
FI883851A0 (fi) | 1988-08-19 |
SE8605510L (sv) | 1987-09-17 |
NZ220101A (en) | 1989-04-26 |
BR8707606A (pt) | 1989-10-03 |
FI883851A (fi) | 1988-08-19 |
AR242276A1 (es) | 1993-03-31 |
SE8605510D0 (sv) | 1986-12-22 |
FI90256C (fi) | 1994-01-10 |
ES2003282A6 (es) | 1988-10-16 |
AU1082688A (en) | 1988-07-15 |
AU7352587A (en) | 1988-07-15 |
CA1286454C (en) | 1991-07-23 |
PT84777B (pt) | 1990-11-07 |
FI90256B (fi) | 1993-09-30 |
PT84777A (en) | 1987-05-01 |
WO1988004705A1 (en) | 1988-06-30 |
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