DE293309T1 - Verfahren zur herstellung von chemithermomechanischen zellstoffen. - Google Patents
Verfahren zur herstellung von chemithermomechanischen zellstoffen.Info
- Publication number
- DE293309T1 DE293309T1 DE198888420160T DE88420160T DE293309T1 DE 293309 T1 DE293309 T1 DE 293309T1 DE 198888420160 T DE198888420160 T DE 198888420160T DE 88420160 T DE88420160 T DE 88420160T DE 293309 T1 DE293309 T1 DE 293309T1
- Authority
- DE
- Germany
- Prior art keywords
- process according
- pulp
- sodium
- heating
- reducing agent
- 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
- 238000000034 method Methods 0.000 title claims abstract 15
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract 9
- 239000003638 chemical reducing agent Substances 0.000 claims abstract 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract 5
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims abstract 3
- 238000004061 bleaching Methods 0.000 claims abstract 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims abstract 3
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract 3
- 229920006395 saturated elastomer Polymers 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims 4
- 239000000203 mixture Substances 0.000 claims 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- 239000008139 complexing agent Substances 0.000 claims 3
- 239000003352 sequestering agent Substances 0.000 claims 3
- 239000000126 substance Substances 0.000 claims 3
- 239000012279 sodium borohydride Substances 0.000 claims 2
- 229910000033 sodium borohydride Inorganic materials 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
- 235000010269 sulphur dioxide Nutrition 0.000 claims 2
- 239000004291 sulphur dioxide Substances 0.000 claims 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims 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 1
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical group OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims 1
- 229920001131 Pulp (paper) Polymers 0.000 claims 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- YEMIDYNCXUFBIS-UHFFFAOYSA-M sodium sulfur dioxide hydroxide Chemical compound S(=O)=O.[OH-].[Na+] YEMIDYNCXUFBIS-UHFFFAOYSA-M 0.000 claims 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims 1
- -1 sulphide ion Chemical class 0.000 claims 1
- 238000005406 washing Methods 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
- 239000012736 aqueous medium 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
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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Catalysts (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Steroid Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Agricultural Chemicals And Associated Chemicals (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 |
|---|---|
| DE293309T1 true DE293309T1 (de) | 1989-05-11 |
Family
ID=9351559
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE198888420160T Pending DE293309T1 (de) | 1987-05-25 | 1988-05-17 | Verfahren zur herstellung von chemithermomechanischen zellstoffen. |
| DE8888420160T Expired - Fee Related DE3861982D1 (de) | 1987-05-25 | 1988-05-17 | Verfahren zur herstellung von chemithermomechanischen zellstoffen. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8888420160T Expired - Fee Related DE3861982D1 (de) | 1987-05-25 | 1988-05-17 | Verfahren zur herstellung von chemithermomechanischen zellstoffen. |
Country Status (12)
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 |
| JP6290244B2 (ja) * | 2012-12-12 | 2018-03-07 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | セルロース蒸解プロセスにおける亜ジチオン酸ナトリウムの使用 |
| 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 (enrdf_load_stackoverflow) * | 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 EP EP88420160A patent/EP0293309B1/fr not_active Expired - Lifetime
- 1988-05-17 DE DE198888420160T patent/DE293309T1/de active Pending
- 1988-05-17 ES ES88420160T patent/ES2004855B3/es not_active Expired - Lifetime
- 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
- 1988-05-23 NZ NZ224749A patent/NZ224749A/xx unknown
- 1988-05-24 PT PT87569A patent/PT87569B/pt not_active IP Right Cessation
- 1988-05-24 NO NO882263A patent/NO171801C/no 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 JP JP63128124A patent/JPS63303189A/ja active Granted
- 1988-05-25 AU AU16614/88A patent/AU609481B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FI882448A0 (fi) | 1988-05-24 |
| NO171801C (no) | 1993-05-05 |
| NO171801B (no) | 1993-01-25 |
| JPH0217675B2 (enrdf_load_stackoverflow) | 1990-04-23 |
| PT87569B (pt) | 1992-09-30 |
| NO882263D0 (no) | 1988-05-24 |
| AU609481B2 (en) | 1991-05-02 |
| JPS63303189A (ja) | 1988-12-09 |
| FI882448L (fi) | 1988-11-26 |
| EP0293309A1 (fr) | 1988-11-30 |
| NZ224749A (en) | 1989-08-29 |
| FI93746B (fi) | 1995-02-15 |
| DE3861982D1 (de) | 1991-04-18 |
| FI93746C (fi) | 1995-05-26 |
| FR2615874A1 (fr) | 1988-12-02 |
| FR2615874B1 (fr) | 1992-02-21 |
| AU1661488A (en) | 1988-12-01 |
| PT87569A (pt) | 1989-05-31 |
| NO882263L (no) | 1988-11-28 |
| ES2004855A4 (es) | 1989-02-16 |
| ATE61639T1 (de) | 1991-03-15 |
| CA1310452C (fr) | 1992-11-24 |
| ES2004855B3 (es) | 1991-08-16 |
| EP0293309B1 (fr) | 1991-03-13 |
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