SE0100039D0 - Metallextraktion före kelatering vid tillverkning av kemisk pappersmassa - Google Patents
Metallextraktion före kelatering vid tillverkning av kemisk pappersmassaInfo
- Publication number
- SE0100039D0 SE0100039D0 SE0100039A SE0100039A SE0100039D0 SE 0100039 D0 SE0100039 D0 SE 0100039D0 SE 0100039 A SE0100039 A SE 0100039A SE 0100039 A SE0100039 A SE 0100039A SE 0100039 D0 SE0100039 D0 SE 0100039D0
- Authority
- SE
- Sweden
- Prior art keywords
- prior
- metals
- extraction
- bleaching
- during
- Prior art date
Links
- 239000002184 metal Substances 0.000 title abstract 7
- 229910052751 metal Inorganic materials 0.000 title abstract 7
- 238000000605 extraction Methods 0.000 title abstract 4
- 229920001131 Pulp (paper) Polymers 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 150000002739 metals Chemical class 0.000 abstract 4
- 238000004061 bleaching Methods 0.000 abstract 3
- 239000002738 chelating agent Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 239000013522 chelant Substances 0.000 abstract 2
- 238000010411 cooking Methods 0.000 abstract 2
- 229910021645 metal ion Inorganic materials 0.000 abstract 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 abstract 1
- 230000029087 digestion Effects 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 239000002023 wood Substances 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
-
- 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
-
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/479,051 US20020139497A1 (en) | 1996-06-05 | 2000-01-07 | Metal extraction prior to chelation in chemical pulp production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE0100039D0 true SE0100039D0 (sv) | 2001-01-04 |
| SE0100039L SE0100039L (sv) | 2001-07-08 |
Family
ID=23902464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE0100039A SE0100039L (sv) | 2000-01-07 | 2001-01-04 | Metallextraktion före kelatering vid tillverkning av kemisk pappersmassa |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2001295189A (sv) |
| CA (1) | CA2330409A1 (sv) |
| FI (1) | FI20010008A (sv) |
| SE (1) | SE0100039L (sv) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5114629B2 (ja) * | 2008-02-06 | 2013-01-09 | サンノプコ株式会社 | リグノセルロース物質蒸解用蒸解助剤及びパルプの製造方法 |
-
2001
- 2001-01-03 FI FI20010008A patent/FI20010008A/sv unknown
- 2001-01-04 SE SE0100039A patent/SE0100039L/sv not_active Application Discontinuation
- 2001-01-05 JP JP2001000631A patent/JP2001295189A/ja not_active Withdrawn
- 2001-01-05 CA CA002330409A patent/CA2330409A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| SE0100039L (sv) | 2001-07-08 |
| CA2330409A1 (en) | 2001-07-07 |
| FI20010008A0 (sv) | 2001-01-03 |
| FI20010008A (sv) | 2001-07-08 |
| JP2001295189A (ja) | 2001-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |