SE508239C2 - Behandling av massa med komplexbildare i minst ett blandningssteg, utan användning av blektorn - Google Patents
Behandling av massa med komplexbildare i minst ett blandningssteg, utan användning av blektornInfo
- Publication number
- SE508239C2 SE508239C2 SE9700030A SE9700030A SE508239C2 SE 508239 C2 SE508239 C2 SE 508239C2 SE 9700030 A SE9700030 A SE 9700030A SE 9700030 A SE9700030 A SE 9700030A SE 508239 C2 SE508239 C2 SE 508239C2
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- mixing
- complexing
- complexing agent
- mixing step
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 title claims abstract description 13
- 239000008139 complexing agent Substances 0.000 title claims description 19
- 238000011282 treatment Methods 0.000 title description 8
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- 230000000536 complexating effect Effects 0.000 claims description 7
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 3
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims description 3
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 4
- 239000002738 chelating agent Substances 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229940090960 diethylenetriamine pentamethylene phosphonic acid Drugs 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Detergent Compositions (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Hybrid Cells (AREA)
- Noodles (AREA)
Priority Applications (16)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9700030A SE508239C2 (sv) | 1997-01-03 | 1997-01-03 | Behandling av massa med komplexbildare i minst ett blandningssteg, utan användning av blektorn |
| ES97912616T ES2195123T3 (es) | 1997-01-03 | 1997-11-06 | Tratamiento de pasta papelera con un agente quelante sin utilizar torre de blanqueo. |
| DE69722445T DE69722445T2 (de) | 1997-01-03 | 1997-11-06 | Zellstoffbehandlung mit einem komplexbildner ohne verwendung eines bleichturms |
| AT97912616T ATE241725T1 (de) | 1997-01-03 | 1997-11-06 | Zellstoffbehandlung mit einem komplexbildner ohne verwendung eines bleichturms |
| JP52990798A JP2001508837A (ja) | 1997-01-03 | 1997-11-06 | 漂白塔を使用しない、キレート化剤でのパルプの処理 |
| PT97912616T PT951599E (pt) | 1997-01-03 | 1997-11-06 | Tratamento de pasta de papel com um agente quelante sem utilizacao de uma torre de branqueamento |
| CN97181066A CN1103832C (zh) | 1997-01-03 | 1997-11-06 | 用螯合剂而不用漂白塔处理纸浆 |
| CA002275257A CA2275257A1 (en) | 1997-01-03 | 1997-11-06 | Treatment of pulp with a chelating agent without using a bleaching tower |
| EP97912616A EP0951599B1 (en) | 1997-01-03 | 1997-11-06 | Treatment of pulp with a chelating agent without using a bleaching tower |
| BR9714252-2A BR9714252A (pt) | 1997-01-03 | 1997-11-06 | Processo de alvejamento de polpa isento de cloro. |
| NZ336204A NZ336204A (en) | 1997-01-03 | 1997-11-06 | Treatment of pulp with a chelating agent without using a bleaching tower |
| PCT/SE1997/001853 WO1998029597A1 (en) | 1997-01-03 | 1997-11-06 | Treatment of pulp with a chelating agent without using a bleaching tower |
| AU49741/97A AU726599B2 (en) | 1997-01-03 | 1997-11-06 | Treatment of pulp with a chelating agent without using a bleaching tower |
| ZA9710418A ZA9710418B (en) | 1997-01-03 | 1997-11-19 | Pretreatment of pulp. |
| IDP973960A ID20003A (id) | 1997-01-03 | 1997-12-23 | Pengolahan-awal bubur-kayu |
| NO993290A NO993290L (no) | 1997-01-03 | 1999-07-02 | Behandling av tremasse med en chelatdanner uten Õ bruke et bleketÕrn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9700030A SE508239C2 (sv) | 1997-01-03 | 1997-01-03 | Behandling av massa med komplexbildare i minst ett blandningssteg, utan användning av blektorn |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE9700030D0 SE9700030D0 (sv) | 1997-01-03 |
| SE9700030L SE9700030L (sv) | 1998-07-04 |
| SE508239C2 true SE508239C2 (sv) | 1998-09-21 |
Family
ID=20405369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9700030A SE508239C2 (sv) | 1997-01-03 | 1997-01-03 | Behandling av massa med komplexbildare i minst ett blandningssteg, utan användning av blektorn |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0951599B1 (id) |
| JP (1) | JP2001508837A (id) |
| CN (1) | CN1103832C (id) |
| AT (1) | ATE241725T1 (id) |
| AU (1) | AU726599B2 (id) |
| BR (1) | BR9714252A (id) |
| CA (1) | CA2275257A1 (id) |
| DE (1) | DE69722445T2 (id) |
| ES (1) | ES2195123T3 (id) |
| ID (1) | ID20003A (id) |
| NO (1) | NO993290L (id) |
| NZ (1) | NZ336204A (id) |
| PT (1) | PT951599E (id) |
| SE (1) | SE508239C2 (id) |
| WO (1) | WO1998029597A1 (id) |
| ZA (1) | ZA9710418B (id) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446054B (zh) * | 2008-12-23 | 2010-04-14 | 华南理工大学 | 年产5万吨以上纸浆生产线的全无氯漂白方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9201477L (sv) * | 1992-05-11 | 1993-06-28 | Kamyr Ab | Saett vid blekning av massa utan anvaendning av klorkemikalier |
| SE502665C2 (sv) * | 1993-06-11 | 1995-12-04 | Kvaerner Pulping Tech | Sätt och reaktor för ozonblekning |
| SE501836C2 (sv) * | 1993-09-21 | 1995-05-22 | Sunds Defibrator Ind Ab | Blekning av kemisk massa varvid massan behandlas med komplexbildare före och efter ett ozonsteg |
| SE504803C2 (sv) * | 1995-08-24 | 1997-04-28 | Sunds Defibrator Ind Ab | Behandling av massa med komplexbildare i minst två blandningssteg utan mellanliggande tvätt |
-
1997
- 1997-01-03 SE SE9700030A patent/SE508239C2/sv not_active IP Right Cessation
- 1997-11-06 CA CA002275257A patent/CA2275257A1/en not_active Abandoned
- 1997-11-06 JP JP52990798A patent/JP2001508837A/ja not_active Withdrawn
- 1997-11-06 AT AT97912616T patent/ATE241725T1/de not_active IP Right Cessation
- 1997-11-06 ES ES97912616T patent/ES2195123T3/es not_active Expired - Lifetime
- 1997-11-06 PT PT97912616T patent/PT951599E/pt unknown
- 1997-11-06 WO PCT/SE1997/001853 patent/WO1998029597A1/en not_active Ceased
- 1997-11-06 DE DE69722445T patent/DE69722445T2/de not_active Expired - Fee Related
- 1997-11-06 NZ NZ336204A patent/NZ336204A/xx unknown
- 1997-11-06 AU AU49741/97A patent/AU726599B2/en not_active Ceased
- 1997-11-06 BR BR9714252-2A patent/BR9714252A/pt not_active Application Discontinuation
- 1997-11-06 CN CN97181066A patent/CN1103832C/zh not_active Expired - Fee Related
- 1997-11-06 EP EP97912616A patent/EP0951599B1/en not_active Expired - Lifetime
- 1997-11-19 ZA ZA9710418A patent/ZA9710418B/xx unknown
- 1997-12-23 ID IDP973960A patent/ID20003A/id unknown
-
1999
- 1999-07-02 NO NO993290A patent/NO993290L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998029597A1 (en) | 1998-07-09 |
| CN1242060A (zh) | 2000-01-19 |
| BR9714252A (pt) | 2000-04-18 |
| AU4974197A (en) | 1998-07-31 |
| CN1103832C (zh) | 2003-03-26 |
| AU726599B2 (en) | 2000-11-16 |
| ES2195123T3 (es) | 2003-12-01 |
| NZ336204A (en) | 1999-11-29 |
| DE69722445T2 (de) | 2004-01-15 |
| DE69722445D1 (de) | 2003-07-03 |
| CA2275257A1 (en) | 1998-07-09 |
| ATE241725T1 (de) | 2003-06-15 |
| SE9700030L (sv) | 1998-07-04 |
| EP0951599A1 (en) | 1999-10-27 |
| ZA9710418B (en) | 1998-06-10 |
| NO993290L (no) | 1999-09-02 |
| NO993290D0 (no) | 1999-07-02 |
| PT951599E (pt) | 2003-10-31 |
| EP0951599B1 (en) | 2003-05-28 |
| SE9700030D0 (sv) | 1997-01-03 |
| JP2001508837A (ja) | 2001-07-03 |
| ID20003A (id) | 1998-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |