PT87569B - Processo para a preparacao de pastas quimicotermomecanicas - Google Patents
Processo para a preparacao de pastas quimicotermomecanicas Download PDFInfo
- Publication number
- PT87569B PT87569B PT87569A PT8756988A PT87569B PT 87569 B PT87569 B PT 87569B PT 87569 A PT87569 A PT 87569A PT 8756988 A PT8756988 A PT 8756988A PT 87569 B PT87569 B PT 87569B
- Authority
- PT
- Portugal
- Prior art keywords
- process according
- sodium
- cooking
- sulfite
- reducing agent
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title description 5
- 238000010411 cooking Methods 0.000 claims abstract description 39
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 29
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 21
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 20
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 claims abstract description 17
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 claims abstract description 17
- 238000004061 bleaching Methods 0.000 claims abstract description 17
- 239000012978 lignocellulosic material Substances 0.000 claims abstract description 17
- 239000002609 medium Substances 0.000 claims abstract description 14
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims abstract description 9
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000012736 aqueous medium Substances 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 50
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical class O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 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 description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 12
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 230000000536 complexating effect Effects 0.000 claims description 9
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 9
- 239000008139 complexing agent Substances 0.000 claims description 8
- 239000003352 sequestering agent Substances 0.000 claims description 8
- 239000012279 sodium borohydride Substances 0.000 claims description 8
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 claims description 7
- 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 description 6
- 230000001066 destructive effect Effects 0.000 claims description 4
- YEMIDYNCXUFBIS-UHFFFAOYSA-M sodium sulfur dioxide hydroxide Chemical compound S(=O)=O.[OH-].[Na+] YEMIDYNCXUFBIS-UHFFFAOYSA-M 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 abstract description 2
- XQIMLPCOVYNASM-UHFFFAOYSA-N borole Chemical compound B1C=CC=C1 XQIMLPCOVYNASM-UHFFFAOYSA-N 0.000 description 16
- 238000011282 treatment Methods 0.000 description 16
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 12
- 239000002023 wood Substances 0.000 description 9
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000007670 refining Methods 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 239000011121 hardwood Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 230000009916 joint effect Effects 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- NYYSPVRERVXMLJ-UHFFFAOYSA-N 4,4-difluorocyclohexan-1-one Chemical compound FC1(F)CCC(=O)CC1 NYYSPVRERVXMLJ-UHFFFAOYSA-N 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical class OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 108091081062 Repeated sequence (DNA) Proteins 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 oxygen in air Chemical compound 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000002087 whitening 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
- 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 (2)
| Publication Number | Publication Date |
|---|---|
| PT87569A PT87569A (pt) | 1989-05-31 |
| PT87569B true PT87569B (pt) | 1992-09-30 |
Family
ID=9351559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT87569A PT87569B (pt) | 1987-05-25 | 1988-05-24 | Processo para a preparacao de pastas quimicotermomecanicas |
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 |
| ATE61639T1 (de) | 1991-03-15 |
| DE293309T1 (de) | 1989-05-11 |
| EP0293309A1 (fr) | 1988-11-30 |
| PT87569A (pt) | 1989-05-31 |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG3A | Patent granted, date of granting |
Effective date: 19920319 |
|
| MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20020930 |