FI96522C - Menetelmä valkaistujen kemitermomekaanisten massojen valmistamiseksi - Google Patents
Menetelmä valkaistujen kemitermomekaanisten massojen valmistamiseksi Download PDFInfo
- Publication number
- FI96522C FI96522C FI893372A FI893372A FI96522C FI 96522 C FI96522 C FI 96522C FI 893372 A FI893372 A FI 893372A FI 893372 A FI893372 A FI 893372A FI 96522 C FI96522 C FI 96522C
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- bleaching
- process according
- bleached
- treatment
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000000126 substance Substances 0.000 title description 13
- 230000000930 thermomechanical effect Effects 0.000 title 1
- 238000004061 bleaching Methods 0.000 claims abstract description 26
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 24
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical class O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 4
- 239000012279 sodium borohydride Substances 0.000 claims description 4
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 3
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims 4
- 239000003795 chemical substances by application 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
- 238000007670 refining Methods 0.000 claims 1
- -1 sulphite ion Chemical class 0.000 claims 1
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 abstract description 17
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229960003330 pentetic acid Drugs 0.000 description 6
- 229920001131 Pulp (paper) Polymers 0.000 description 5
- 239000008235 industrial water Substances 0.000 description 5
- 238000000227 grinding Methods 0.000 description 4
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000007865 diluting Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- XQIMLPCOVYNASM-UHFFFAOYSA-N borole Chemical compound B1C=CC=C1 XQIMLPCOVYNASM-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000012978 lignocellulosic material Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 239000003352 sequestering agent Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 159000000000 sodium salts Chemical group 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- RYYXDZDBXNUPOG-UHFFFAOYSA-N 4,5,6,7-tetrahydro-1,3-benzothiazole-2,6-diamine;dihydrochloride Chemical group Cl.Cl.C1C(N)CCC2=C1SC(N)=N2 RYYXDZDBXNUPOG-UHFFFAOYSA-N 0.000 description 1
- 241000218631 Coniferophyta Species 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000012733 comparative method Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- SKUZAGMYWZWQLN-UHFFFAOYSA-N methanimidamide;sulfurous acid Chemical compound NC=N.OS(O)=O SKUZAGMYWZWQLN-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007858 starting material Substances 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
- D21C3/04—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)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Glass Compositions (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Seasonings (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8809703 | 1988-07-12 | ||
| FR8809703A FR2634233B1 (fr) | 1988-07-12 | 1988-07-12 | Procede de fabrication de pates chimicothermomecaniques blanchies |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI893372A0 FI893372A0 (fi) | 1989-07-11 |
| FI893372L FI893372L (fi) | 1990-01-13 |
| FI96522B FI96522B (fi) | 1996-03-29 |
| FI96522C true FI96522C (fi) | 1996-07-10 |
Family
ID=9368520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI893372A FI96522C (fi) | 1988-07-12 | 1989-07-11 | Menetelmä valkaistujen kemitermomekaanisten massojen valmistamiseksi |
Country Status (12)
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 |
| EP2142348B1 (de) * | 2007-04-24 | 2013-12-25 | Basf Se | Verfahren zur herstellung von gebleichten holzpartikeln und hellen bis weissen holzwerkstoffen |
| US20100224333A1 (en) * | 2009-03-09 | 2010-09-09 | Prasad Duggirala | Method and chemical composition to improve efficiency of mechanical pulp |
| US9932709B2 (en) | 2013-03-15 | 2018-04-03 | Ecolab Usa Inc. | Processes and compositions for brightness improvement in paper production |
| 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 EP EP89420245A patent/EP0351330B1/fr not_active Expired - Lifetime
- 1989-07-06 AT AT89420245T patent/ATE171741T1/de not_active IP Right Cessation
- 1989-07-06 DE DE198989420245T patent/DE351330T1/de active Pending
- 1989-07-06 ES ES89420245T patent/ES2012324T3/es not_active Expired - Lifetime
- 1989-07-06 NO NO892805A patent/NO176726C/no unknown
- 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 PT PT91128A patent/PT91128B/pt not_active IP Right Cessation
- 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 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 |
|---|---|
| DE68928822D1 (de) | 1998-11-05 |
| JPH0250236B2 (enrdf_load_stackoverflow) | 1990-11-01 |
| FI96522B (fi) | 1996-03-29 |
| NO176726C (no) | 1995-05-16 |
| FR2634233B1 (fr) | 1995-04-14 |
| AU3799989A (en) | 1990-01-18 |
| JPH0268377A (ja) | 1990-03-07 |
| PT91128A (pt) | 1990-02-08 |
| PT91128B (pt) | 1994-12-30 |
| EP0351330A1 (fr) | 1990-01-17 |
| FI893372L (fi) | 1990-01-13 |
| CA1335406C (fr) | 1995-05-02 |
| NZ229902A (en) | 1991-09-25 |
| FR2634233A1 (fr) | 1990-01-19 |
| EP0351330B1 (fr) | 1998-09-30 |
| FI893372A0 (fi) | 1989-07-11 |
| DE351330T1 (de) | 1990-06-13 |
| NO176726B (no) | 1995-02-06 |
| NO892805L (no) | 1990-01-15 |
| ES2012324T3 (es) | 1998-11-16 |
| ES2012324A4 (es) | 1990-03-16 |
| DE68928822T2 (de) | 1999-05-27 |
| NO892805D0 (no) | 1989-07-06 |
| AU616541B2 (en) | 1991-10-31 |
| ATE171741T1 (de) | 1998-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | Publication of examined application | ||
| FG | Patent granted |
Owner name: ATOCHEM |
|
| MA | Patent expired |