SE9400016L - Återvinningsprocess för blekning av pappersmassa - Google Patents
Återvinningsprocess för blekning av pappersmassaInfo
- Publication number
- SE9400016L SE9400016L SE9400016A SE9400016A SE9400016L SE 9400016 L SE9400016 L SE 9400016L SE 9400016 A SE9400016 A SE 9400016A SE 9400016 A SE9400016 A SE 9400016A SE 9400016 L SE9400016 L SE 9400016L
- Authority
- SE
- Sweden
- Prior art keywords
- bleaching
- liquor
- black liquor
- cooking liquor
- effluent
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 238000004064 recycling Methods 0.000 title 1
- 238000010411 cooking Methods 0.000 abstract 3
- 239000007844 bleaching agent Substances 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000004537 pulping Methods 0.000 abstract 2
- 239000002023 wood Substances 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000029087 digestion Effects 0.000 abstract 1
- 238000010790 dilution Methods 0.000 abstract 1
- 239000012895 dilution Substances 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 239000002655 kraft paper Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 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
- 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)
- D21C11/0028—Effluents derived from the washing or bleaching plants
Landscapes
- Paper (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9400016A SE9400016L (sv) | 1994-01-04 | 1994-01-04 | Återvinningsprocess för blekning av pappersmassa |
| PCT/SE1995/000002 WO1995018884A1 (en) | 1994-01-04 | 1995-01-04 | Process for the recovery of chemicals and energy from pulp bleaching effluent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9400016A SE9400016L (sv) | 1994-01-04 | 1994-01-04 | Återvinningsprocess för blekning av pappersmassa |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE9400016D0 SE9400016D0 (sv) | 1994-01-04 |
| SE9400016L true SE9400016L (sv) | 1995-07-05 |
Family
ID=20392500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9400016A SE9400016L (sv) | 1994-01-04 | 1994-01-04 | Återvinningsprocess för blekning av pappersmassa |
Country Status (2)
| Country | Link |
|---|---|
| SE (1) | SE9400016L (sv) |
| WO (1) | WO1995018884A1 (sv) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI122246B (sv) * | 2007-06-15 | 2011-10-31 | Andritz Oy | Förfarande för behandling av massa på en massafabrik |
| CN105421134A (zh) * | 2014-09-22 | 2016-03-23 | 丹阳市华兴纸箱有限公司 | 一种包装牛皮纸生产工艺 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE435302B (sv) * | 1974-10-08 | 1984-09-17 | Mannbro Sys Hb | Sett vid behandling av avlutar fran delignifiering av lignocellulosamaterial med kloridbildande blekmedel |
-
1994
- 1994-01-04 SE SE9400016A patent/SE9400016L/sv not_active Application Discontinuation
-
1995
- 1995-01-04 WO PCT/SE1995/000002 patent/WO1995018884A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO1995018884A1 (en) | 1995-07-13 |
| SE9400016D0 (sv) | 1994-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1222603A (en) | Polution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor | |
| US5296099A (en) | Environmentally improved process for bleaching lignocellulosic materials with oxygen, ozone and chlorine dioxide | |
| US4248662A (en) | Oxygen pulping with recycled liquor | |
| US6302997B1 (en) | Process for producing a pulp suitable for papermaking from nonwood fibrous materials | |
| US5164043A (en) | Environmentally improved process for bleaching lignocellulosic materials with ozone | |
| US4155806A (en) | Method for continuous alkaline delignification of lignocellulose material in two or more steps, the final of which with oxygen | |
| US5147503A (en) | Recycling waste cellulosic material with sodium sulphide digestion | |
| US4196043A (en) | Kraft pulp bleaching and recovery process | |
| EP0275256B1 (en) | Method of processing waste paper | |
| US5211811A (en) | Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification | |
| CA1043515A (en) | Method for controlling batch alkaline pulp digestion in combination with continuous alkaline oxygen delignification | |
| US5486268A (en) | Oxygen delignification of old corrugated containers | |
| US5188708A (en) | Process for high consistency oxygen delignification followed by ozone relignification | |
| NO891117D0 (no) | Fremgangsmaate for bleking av mekanisk masse av ved. | |
| US6221206B1 (en) | Method for oxygen delignification of a digested pulp | |
| ES8704569A1 (es) | Procedimiento de disgregacion con sulfito para la preparacion de celulosa a partir de materiales que contienen lignocelulosa con recuperacion de los productos quimicos de disgregacion | |
| US3811995A (en) | Method of high yield semichemical pulp production | |
| CA1173604A (en) | Production of chemimechanical pulp | |
| US6319357B1 (en) | Method for two-stage oxygen bleaching and delignification of chemical pulp | |
| SE9400016D0 (sv) | Återvinningsprocess för blekning av pappersmassa | |
| US5441603A (en) | Method for chelation of pulp prior to ozone delignification | |
| US3798119A (en) | Process for bleaching kraft pulp with oxygen in the presence of white liquor from a kraft recovery system | |
| WO1987001746A1 (en) | Method of pretreating pulp with stabilizers and peroxide prior to mechanical refining | |
| US1867593A (en) | Process of chemical fiber liberation | |
| Dhake | Environmentally Friendly Technologies for the Pulp and Paper Industry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 9400016-3 |