NO760586L - - Google Patents
Info
- Publication number
- NO760586L NO760586L NO760586A NO760586A NO760586L NO 760586 L NO760586 L NO 760586L NO 760586 A NO760586 A NO 760586A NO 760586 A NO760586 A NO 760586A NO 760586 L NO760586 L NO 760586L
- Authority
- NO
- Norway
- Prior art keywords
- raw material
- defibror
- impregnation
- peroxide
- alkali
- Prior art date
Links
- 239000000126 substance Substances 0.000 claims description 50
- 239000002994 raw material Substances 0.000 claims description 43
- 239000007788 liquid Substances 0.000 claims description 38
- 238000004061 bleaching Methods 0.000 claims description 36
- 239000003513 alkali Substances 0.000 claims description 33
- 238000005470 impregnation Methods 0.000 claims description 32
- 150000002978 peroxides Chemical class 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 27
- 239000002023 wood Substances 0.000 claims description 19
- 239000000835 fiber Substances 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229920001131 Pulp (paper) Polymers 0.000 claims description 5
- 239000007844 bleaching agent Substances 0.000 claims description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 3
- 241000609240 Ambelania acida Species 0.000 claims description 2
- 235000018185 Betula X alpestris Nutrition 0.000 claims description 2
- 235000018212 Betula X uliginosa Nutrition 0.000 claims description 2
- 241000219495 Betulaceae Species 0.000 claims description 2
- 241000219000 Populus Species 0.000 claims description 2
- 241000183024 Populus tremula Species 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 2
- 239000010905 bagasse Substances 0.000 claims description 2
- 239000010902 straw Substances 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 238000000149 argon plasma sintering Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 229920002522 Wood fibre Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained effect 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
- 239000007787 solid Substances 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7502060A SE7502060L (sv) | 1975-02-24 | 1975-02-24 | Sett vid framstellning av mekanisk pappersmassa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO760586L true NO760586L (xx) | 1976-08-25 |
Family
ID=20323781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO760586A NO760586L (xx) | 1975-02-24 | 1976-02-23 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS51109302A (xx) |
| BR (1) | BR7601137A (xx) |
| CA (1) | CA1051246A (xx) |
| DE (1) | DE2606718C3 (xx) |
| FI (1) | FI760469A (xx) |
| FR (1) | FR2301630A1 (xx) |
| NO (1) | NO760586L (xx) |
| SE (1) | SE7502060L (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI61215B (fi) * | 1976-11-23 | 1982-02-26 | Defibrator Ab | Saett och anordning att kontinuerligt framstaella lignocellulosahaltiga fibermaterial |
| FR2566015B1 (fr) * | 1984-06-15 | 1986-08-29 | Centre Tech Ind Papier | Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene |
| SE8501246L (sv) * | 1985-03-13 | 1986-09-14 | Eka Ab | Sett att tillverka blekt, kemimekanisk och halvkemisk fibermassa med anvendning av enstegsimpregnering |
| DE10114341C2 (de) * | 2001-03-23 | 2003-10-02 | Rettenmaier & Soehne Gmbh & Co | Verfahren zum Vermahlen und Bleichen von cellulosehaltigem Material, dessen Verwendung und das cellulosehaltige Material |
| DE102019008449A1 (de) * | 2019-12-05 | 2021-06-10 | Klingele Papierwerke Gmbh & Co. Kg | Verfahren sowie Vorrichtung zur Herstellung von Faserstoff mit einem Zuführsystem und einem Schneckensystem |
-
1975
- 1975-02-24 SE SE7502060A patent/SE7502060L/xx unknown
-
1976
- 1976-02-19 DE DE2606718A patent/DE2606718C3/de not_active Expired
- 1976-02-23 NO NO760586A patent/NO760586L/no unknown
- 1976-02-23 BR BR7601137A patent/BR7601137A/pt unknown
- 1976-02-23 FR FR7604977A patent/FR2301630A1/fr active Granted
- 1976-02-23 CA CA246,370A patent/CA1051246A/en not_active Expired
- 1976-02-24 JP JP51018579A patent/JPS51109302A/ja active Pending
- 1976-02-24 FI FI760469A patent/FI760469A/fi not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BR7601137A (pt) | 1976-09-14 |
| FR2301630B3 (xx) | 1978-11-10 |
| FI760469A (xx) | 1976-08-25 |
| SE7502060L (sv) | 1976-08-25 |
| DE2606718A1 (de) | 1976-09-02 |
| FR2301630A1 (fr) | 1976-09-17 |
| DE2606718C3 (de) | 1978-10-05 |
| CA1051246A (en) | 1979-03-27 |
| DE2606718B2 (de) | 1978-01-26 |
| JPS51109302A (xx) | 1976-09-28 |
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