DE351330T1 - Verfahren zur herstellung von gebleichten chemithermomechanischen zellstoffen. - Google Patents
Verfahren zur herstellung von gebleichten chemithermomechanischen zellstoffen.Info
- Publication number
- DE351330T1 DE351330T1 DE198989420245T DE89420245T DE351330T1 DE 351330 T1 DE351330 T1 DE 351330T1 DE 198989420245 T DE198989420245 T DE 198989420245T DE 89420245 T DE89420245 T DE 89420245T DE 351330 T1 DE351330 T1 DE 351330T1
- Authority
- DE
- Germany
- Prior art keywords
- process according
- pulp
- amount
- bleaching
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract 3
- 238000000034 method Methods 0.000 claims abstract 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract 7
- 238000004061 bleaching Methods 0.000 claims abstract 7
- 239000007788 liquid Substances 0.000 claims abstract 3
- 239000007787 solid Substances 0.000 claims abstract 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims abstract 3
- 229920006395 saturated elastomer Polymers 0.000 claims abstract 2
- RYYXDZDBXNUPOG-UHFFFAOYSA-N 4,5,6,7-tetrahydro-1,3-benzothiazole-2,6-diamine;dihydrochloride Chemical compound Cl.Cl.C1C(N)CCC2=C1SC(N)=N2 RYYXDZDBXNUPOG-UHFFFAOYSA-N 0.000 claims 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 229910000033 sodium borohydride Inorganic materials 0.000 claims 2
- 239000012279 sodium borohydride Substances 0.000 claims 2
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 claims 2
- 229920001131 Pulp (paper) Polymers 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 239000000470 constituent Substances 0.000 claims 1
- 235000010269 sulphur dioxide Nutrition 0.000 claims 1
- 239000004291 sulphur dioxide Substances 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 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
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
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
-
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Glass Compositions (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Seasonings (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8809703A FR2634233B1 (fr) | 1988-07-12 | 1988-07-12 | Procede de fabrication de pates chimicothermomecaniques blanchies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE351330T1 true DE351330T1 (de) | 1990-06-13 |
Family
ID=9368520
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE198989420245T Pending DE351330T1 (de) | 1988-07-12 | 1989-07-06 | Verfahren zur herstellung von gebleichten chemithermomechanischen zellstoffen. |
| DE68928822T Expired - Fee Related DE68928822T2 (de) | 1988-07-12 | 1989-07-06 | Verfahren zur Herstellung von gebleichten chemithermomechanischen Zellstoffen |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE68928822T Expired - Fee Related DE68928822T2 (de) | 1988-07-12 | 1989-07-06 | Verfahren zur Herstellung von gebleichten chemithermomechanischen Zellstoffen |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0351330B1 (en]) |
| JP (1) | JPH0268377A (en]) |
| AT (1) | ATE171741T1 (en]) |
| AU (1) | AU616541B2 (en]) |
| CA (1) | CA1335406C (en]) |
| DE (2) | DE351330T1 (en]) |
| ES (1) | ES2012324T3 (en]) |
| FI (1) | FI96522C (en]) |
| FR (1) | FR2634233B1 (en]) |
| NO (1) | NO176726C (en]) |
| NZ (1) | NZ229902A (en]) |
| PT (1) | PT91128B (en]) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2615874B1 (fr) * | 1987-05-25 | 1992-02-21 | Atochem | Procede de preparation de pates chimicothermomecaniques |
| FR2675518B1 (fr) * | 1991-04-17 | 1996-10-18 | Atochem | Procede de preparation de pate a papier a haut rendement et blanchie, a partir de copeaux de bois. |
| US20030062138A1 (en) * | 2001-05-09 | 2003-04-03 | Hache Maurice Joseph Albert | Method for brightening mechanical pulps |
| JP4501329B2 (ja) * | 2002-03-29 | 2010-07-14 | 日本製紙株式会社 | グラビア印刷用塗工紙 |
| PL2142348T3 (pl) * | 2007-04-24 | 2014-05-30 | Basf Se | Sposób wytwarzania bielonych cząstek drewna i tworzyw drzewnych o zabarwieniu od jasnego do białego |
| US9932709B2 (en) | 2013-03-15 | 2018-04-03 | Ecolab Usa Inc. | Processes and compositions for brightness improvement in paper production |
| US20100224333A1 (en) * | 2009-03-09 | 2010-09-09 | Prasad Duggirala | Method and chemical composition to improve efficiency of mechanical pulp |
| EP2924166A1 (de) * | 2014-03-25 | 2015-09-30 | Basf Se | Verfahren zur Herstellung von gebleichtem Holzfaserstoff |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE834808C (de) * | 1950-08-31 | 1952-03-24 | Degussa | Verfahren zum Bleichen von mechanisch erzeugten, schwer bleichbaren Faserstoffen, insbesondere Holzschliff |
| 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 |
| 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 |
| US4718980A (en) * | 1985-12-30 | 1988-01-12 | Weyerhaeuser Company | Interstage treatment of mechanical pulp |
| FR2615874B1 (fr) * | 1987-05-25 | 1992-02-21 | Atochem | Procede de preparation de pates chimicothermomecaniques |
| SE460124B (sv) * | 1988-09-14 | 1989-09-11 | Sunds Defibrator | Saett foer framstaellning av kemimekanisk massa av loevved |
-
1988
- 1988-07-12 FR FR8809703A patent/FR2634233B1/fr not_active Expired - Fee Related
-
1989
- 1989-07-06 NO NO892805A patent/NO176726C/no unknown
- 1989-07-06 ES ES89420245T patent/ES2012324T3/es not_active Expired - Lifetime
- 1989-07-06 AT AT89420245T patent/ATE171741T1/de not_active IP Right Cessation
- 1989-07-06 EP EP89420245A patent/EP0351330B1/fr not_active Expired - Lifetime
- 1989-07-06 DE DE198989420245T patent/DE351330T1/de active Pending
- 1989-07-06 DE DE68928822T patent/DE68928822T2/de not_active Expired - Fee Related
- 1989-07-11 AU AU37999/89A patent/AU616541B2/en not_active Ceased
- 1989-07-11 NZ NZ229902A patent/NZ229902A/xx unknown
- 1989-07-11 CA CA000605392A patent/CA1335406C/fr not_active Expired - Fee Related
- 1989-07-11 PT PT91128A patent/PT91128B/pt not_active IP Right Cessation
- 1989-07-11 FI FI893372A patent/FI96522C/fi not_active IP Right Cessation
- 1989-07-12 JP JP1180113A patent/JPH0268377A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2634233B1 (fr) | 1995-04-14 |
| PT91128B (pt) | 1994-12-30 |
| FR2634233A1 (fr) | 1990-01-19 |
| NO176726B (no) | 1995-02-06 |
| NO892805L (no) | 1990-01-15 |
| JPH0268377A (ja) | 1990-03-07 |
| EP0351330A1 (fr) | 1990-01-17 |
| FI96522B (fi) | 1996-03-29 |
| AU616541B2 (en) | 1991-10-31 |
| DE68928822T2 (de) | 1999-05-27 |
| PT91128A (pt) | 1990-02-08 |
| AU3799989A (en) | 1990-01-18 |
| ATE171741T1 (de) | 1998-10-15 |
| FI893372A0 (fi) | 1989-07-11 |
| CA1335406C (fr) | 1995-05-02 |
| EP0351330B1 (fr) | 1998-09-30 |
| FI893372L (fi) | 1990-01-13 |
| NO176726C (no) | 1995-05-16 |
| ES2012324A4 (es) | 1990-03-16 |
| DE68928822D1 (de) | 1998-11-05 |
| JPH0250236B2 (en]) | 1990-11-01 |
| NZ229902A (en) | 1991-09-25 |
| NO892805D0 (no) | 1989-07-06 |
| ES2012324T3 (es) | 1998-11-16 |
| FI96522C (fi) | 1996-07-10 |
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