ATE61639T1 - Verfahren zur herstellung von chemithermomechanischen zellstoffen. - Google Patents
Verfahren zur herstellung von chemithermomechanischen zellstoffen.Info
- Publication number
- ATE61639T1 ATE61639T1 AT88420160T AT88420160T ATE61639T1 AT E61639 T1 ATE61639 T1 AT E61639T1 AT 88420160 T AT88420160 T AT 88420160T AT 88420160 T AT88420160 T AT 88420160T AT E61639 T1 ATE61639 T1 AT E61639T1
- Authority
- AT
- Austria
- Prior art keywords
- production
- aid
- chemithermomechanical pulp
- medium
- so2naoh
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 abstract 1
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 abstract 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 abstract 1
- 239000012736 aqueous medium Substances 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000010411 cooking Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000012978 lignocellulosic material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002609 medium Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 abstract 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 abstract 1
- 235000010265 sodium sulphite Nutrition 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
Landscapes
- Paper (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Steroid Compounds (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8707552A FR2615874B1 (fr) | 1987-05-25 | 1987-05-25 | Procede de preparation de pates chimicothermomecaniques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE61639T1 true ATE61639T1 (de) | 1991-03-15 |
Family
ID=9351559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT88420160T ATE61639T1 (de) | 1987-05-25 | 1988-05-17 | Verfahren zur herstellung von chemithermomechanischen zellstoffen. |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0293309B1 (en]) |
| JP (1) | JPS63303189A (en]) |
| AT (1) | ATE61639T1 (en]) |
| AU (1) | AU609481B2 (en]) |
| CA (1) | CA1310452C (en]) |
| DE (2) | DE293309T1 (en]) |
| ES (1) | ES2004855B3 (en]) |
| FI (1) | FI93746C (en]) |
| FR (1) | FR2615874B1 (en]) |
| NO (1) | NO171801C (en]) |
| NZ (1) | NZ224749A (en]) |
| PT (1) | PT87569B (en]) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2634233B1 (fr) * | 1988-07-12 | 1995-04-14 | Atochem | Procede de fabrication de pates chimicothermomecaniques blanchies |
| FR2659363B1 (fr) * | 1990-03-07 | 1996-04-19 | Atochem | Procede de preparation de pates a haut rendement blanchies. |
| SE468644B (sv) * | 1991-05-24 | 1993-02-22 | Sunds Defibrator Ind Ab | Framstaellning av kemitermomekanisk massa samt impregneringsloesning innehaallande borhydrid och sulfit |
| DE10109502A1 (de) | 2001-02-28 | 2002-09-12 | Rhodia Acetow Gmbh | Verfahren zum Abtrennen von Hemicellulosen aus hemicellulosehaltiger Biomasse sowie die mit dem Verfahren erhältliche Biomasse und Hemicellulose |
| RU2649301C2 (ru) * | 2012-12-12 | 2018-03-30 | Басф Се | Применение дитионита натрия в процессе варки целлюлозы |
| EP2924166A1 (de) * | 2014-03-25 | 2015-09-30 | Basf Se | Verfahren zur Herstellung von gebleichtem Holzfaserstoff |
| CN111549552B (zh) * | 2020-05-25 | 2022-06-14 | 广西大学 | 一种废水碱回收循环利用的高得率化学机械浆制浆方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1150451A (fr) * | 1956-05-04 | 1958-01-14 | Saint Gobain | Perfectionnement aux procédés de fabrication des pâtes cellulosiques mi-chimiques |
| US3284283A (en) * | 1964-02-17 | 1966-11-08 | Fmc Corp | Production of wood pulps including treatment of cellulosic fibers with bisulfite ion followed by alkali metal borohydride |
| CH510168A (it) * | 1969-07-30 | 1971-07-15 | Vita Mayer & C Gia | Processo per la produzione di paste ad alta resa ed alto grado di bianco per uso cartario |
| JPS5210300B2 (en]) * | 1973-06-19 | 1977-03-23 | ||
| SE416481B (sv) * | 1977-05-02 | 1981-01-05 | Mo Och Domsjoe Ab | Fofarande och anordning for behandling av vedflis for avlegsnande av tungmetaller och harts |
| CA1212505A (en) * | 1984-07-17 | 1986-10-14 | Rudy Vit | Method, process and apparatus for converting wood, wood residue and or biomass into pulp |
| FR2634233B1 (fr) * | 1988-07-12 | 1995-04-14 | Atochem | Procede de fabrication de pates chimicothermomecaniques blanchies |
-
1987
- 1987-05-25 FR FR8707552A patent/FR2615874B1/fr not_active Expired - Lifetime
-
1988
- 1988-05-17 DE DE198888420160T patent/DE293309T1/de active Pending
- 1988-05-17 AT AT88420160T patent/ATE61639T1/de not_active IP Right Cessation
- 1988-05-17 DE DE8888420160T patent/DE3861982D1/de not_active Expired - Fee Related
- 1988-05-17 ES ES88420160T patent/ES2004855B3/es not_active Expired - Lifetime
- 1988-05-17 EP EP88420160A patent/EP0293309B1/fr not_active Expired - Lifetime
- 1988-05-23 NZ NZ224749A patent/NZ224749A/xx unknown
- 1988-05-24 NO NO882263A patent/NO171801C/no not_active IP Right Cessation
- 1988-05-24 PT PT87569A patent/PT87569B/pt not_active IP Right Cessation
- 1988-05-24 FI FI882448A patent/FI93746C/fi not_active IP Right Cessation
- 1988-05-24 CA CA000567547A patent/CA1310452C/fr not_active Expired - Lifetime
- 1988-05-25 AU AU16614/88A patent/AU609481B2/en not_active Ceased
- 1988-05-25 JP JP63128124A patent/JPS63303189A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| AU609481B2 (en) | 1991-05-02 |
| DE293309T1 (de) | 1989-05-11 |
| EP0293309A1 (fr) | 1988-11-30 |
| PT87569A (pt) | 1989-05-31 |
| PT87569B (pt) | 1992-09-30 |
| NZ224749A (en) | 1989-08-29 |
| EP0293309B1 (fr) | 1991-03-13 |
| FI93746B (fi) | 1995-02-15 |
| CA1310452C (fr) | 1992-11-24 |
| ES2004855B3 (es) | 1991-08-16 |
| ES2004855A4 (es) | 1989-02-16 |
| AU1661488A (en) | 1988-12-01 |
| NO171801B (no) | 1993-01-25 |
| FI882448L (fi) | 1988-11-26 |
| FR2615874B1 (fr) | 1992-02-21 |
| NO882263L (no) | 1988-11-28 |
| JPS63303189A (ja) | 1988-12-09 |
| FR2615874A1 (fr) | 1988-12-02 |
| FI882448A0 (fi) | 1988-05-24 |
| JPH0217675B2 (en]) | 1990-04-23 |
| DE3861982D1 (de) | 1991-04-18 |
| NO882263D0 (no) | 1988-05-24 |
| FI93746C (fi) | 1995-05-26 |
| NO171801C (no) | 1993-05-05 |
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| SE8700313L (sv) | Forfarande for blekning av mekaniska massor | |
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| FR2426769A2 (fr) | Procede pour la fabrication de pates papetieres mecano-chimiques a haut rendement | |
| SE9002001D0 (sv) | Metod foer tillfoersel av vaeteperoxid i cellulosasuspensioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UEP | Publication of translation of european patent specification | ||
| REN | Ceased due to non-payment of the annual fee |