ATE83016T1 - Peroxid-bleichverfahren. - Google Patents
Peroxid-bleichverfahren.Info
- Publication number
- ATE83016T1 ATE83016T1 AT88901957T AT88901957T ATE83016T1 AT E83016 T1 ATE83016 T1 AT E83016T1 AT 88901957 T AT88901957 T AT 88901957T AT 88901957 T AT88901957 T AT 88901957T AT E83016 T1 ATE83016 T1 AT E83016T1
- Authority
- AT
- Austria
- Prior art keywords
- acid
- pulp
- suspension
- bleaching process
- peroxide bleaching
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 150000002978 peroxides Chemical class 0.000 title 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 abstract 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 abstract 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 1
- 229920001131 Pulp (paper) Polymers 0.000 abstract 1
- 235000011054 acetic acid Nutrition 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 235000019253 formic acid Nutrition 0.000 abstract 1
- 239000004310 lactic acid Substances 0.000 abstract 1
- 235000014655 lactic acid Nutrition 0.000 abstract 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 abstract 1
- 239000011976 maleic acid Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 150000004965 peroxy acids Chemical class 0.000 abstract 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8700569A SE8700569D0 (sv) | 1987-02-12 | 1987-02-12 | An improved peroxide bleaching method |
| PCT/SE1988/000055 WO1988006202A1 (en) | 1987-02-12 | 1988-02-12 | An improved peroxide bleaching method |
| EP88901957A EP0348411B1 (de) | 1987-02-12 | 1988-02-12 | Peroxid-bleichverfahren |
| CA000612006A CA1333650C (en) | 1987-02-12 | 1989-09-19 | Peroxide bleaching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE83016T1 true ATE83016T1 (de) | 1992-12-15 |
Family
ID=25673050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT88901957T ATE83016T1 (de) | 1987-02-12 | 1988-02-12 | Peroxid-bleichverfahren. |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0348411B1 (de) |
| AT (1) | ATE83016T1 (de) |
| CA (1) | CA1333650C (de) |
| DE (1) | DE3876429T2 (de) |
| FI (1) | FI91545C (de) |
| SE (1) | SE8700569D0 (de) |
| WO (1) | WO1988006202A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE505980C2 (sv) * | 1993-12-23 | 1997-10-27 | Bim Kemi Ab | Sätt att förhindra peroxidnedbrytande enzymer vid blekning med väteperoxid |
| RU2152467C1 (ru) * | 1994-07-11 | 2000-07-10 | Белойт Текнолоджиз, Инк. | Способ отбеливания лигноцеллюлозных, целлюлозных и синтетических полимерных волокнистых материалов с использованием щелочных пероксидов |
| DE19516151A1 (de) * | 1995-05-03 | 1996-11-07 | Sven Siegle | Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung |
| FI115470B (fi) * | 1996-02-19 | 2005-05-13 | Kemira Oyj | Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi |
| FI115641B (fi) * | 1996-02-19 | 2005-06-15 | Kemira Oyj | Korkeasaantomassojen valkaisumenetelmä |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE633420A (de) * | 1962-07-16 | |||
| DE2219505C3 (de) * | 1972-04-21 | 1974-10-17 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Chlorfreie Mehrstufenbleiche von Zellstoff |
-
1987
- 1987-02-12 SE SE8700569A patent/SE8700569D0/xx unknown
-
1988
- 1988-02-12 AT AT88901957T patent/ATE83016T1/de not_active IP Right Cessation
- 1988-02-12 DE DE8888901957T patent/DE3876429T2/de not_active Expired - Fee Related
- 1988-02-12 EP EP88901957A patent/EP0348411B1/de not_active Expired
- 1988-02-12 WO PCT/SE1988/000055 patent/WO1988006202A1/en not_active Ceased
-
1989
- 1989-08-08 FI FI893742A patent/FI91545C/fi not_active IP Right Cessation
- 1989-09-19 CA CA000612006A patent/CA1333650C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0348411B1 (de) | 1992-12-02 |
| FI91545B (fi) | 1994-03-31 |
| DE3876429D1 (de) | 1993-01-14 |
| EP0348411A1 (de) | 1990-01-03 |
| FI893742A0 (fi) | 1989-08-08 |
| SE8700569D0 (sv) | 1987-02-12 |
| DE3876429T2 (de) | 1993-07-01 |
| FI91545C (fi) | 1994-07-11 |
| WO1988006202A1 (en) | 1988-08-25 |
| CA1333650C (en) | 1994-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UEP | Publication of translation of european patent specification | ||
| REN | Ceased due to non-payment of the annual fee |