CH655965A5 - Verfahren fuer die reduktion des harzgehaltes waehrend der herstellung von zellulose-papierbreien aus lignozellulose-materialien. - Google Patents
Verfahren fuer die reduktion des harzgehaltes waehrend der herstellung von zellulose-papierbreien aus lignozellulose-materialien. Download PDFInfo
- Publication number
- CH655965A5 CH655965A5 CH7774/81A CH777481A CH655965A5 CH 655965 A5 CH655965 A5 CH 655965A5 CH 7774/81 A CH7774/81 A CH 7774/81A CH 777481 A CH777481 A CH 777481A CH 655965 A5 CH655965 A5 CH 655965A5
- Authority
- CH
- Switzerland
- Prior art keywords
- pulp
- paper pulp
- paper
- added
- resin
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 60
- 229920002678 cellulose Polymers 0.000 title claims description 21
- 239000001913 cellulose Substances 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 239000000463 material Substances 0.000 title description 6
- 229920001131 Pulp (paper) Polymers 0.000 claims description 145
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 121
- 239000011347 resin Substances 0.000 claims description 57
- 229920005989 resin Polymers 0.000 claims description 57
- 239000000126 substance Substances 0.000 claims description 40
- 239000003513 alkali Substances 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000007844 bleaching agent Substances 0.000 claims description 21
- 238000005406 washing Methods 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 10
- 238000009896 oxidative bleaching Methods 0.000 claims description 10
- 239000012978 lignocellulosic material Substances 0.000 claims description 9
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 229920005610 lignin Polymers 0.000 claims description 5
- 150000002978 peroxides Chemical class 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 38
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 24
- 230000008569 process Effects 0.000 description 23
- 238000007792 addition Methods 0.000 description 22
- 239000002023 wood Substances 0.000 description 18
- 239000004155 Chlorine dioxide Substances 0.000 description 13
- 235000019398 chlorine dioxide Nutrition 0.000 description 13
- 238000004061 bleaching Methods 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 10
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 9
- 239000000123 paper Substances 0.000 description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 229910052911 sodium silicate Inorganic materials 0.000 description 8
- 238000003860 storage Methods 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 6
- 238000004898 kneading Methods 0.000 description 6
- 239000002655 kraft paper Substances 0.000 description 6
- 238000007873 sieving Methods 0.000 description 6
- 235000018185 Betula X alpestris Nutrition 0.000 description 5
- 235000018212 Betula X uliginosa Nutrition 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 241000218657 Picea Species 0.000 description 4
- 239000005708 Sodium hypochlorite Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 230000029087 digestion Effects 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- 241001233195 Eucalyptus grandis Species 0.000 description 1
- 240000006361 Eucalyptus saligna Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 230000003113 alkalizing effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000005031 sulfite paper Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000930 thermomechanical 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
- 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
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8008574A SE424884B (sv) | 1980-12-05 | 1980-12-05 | Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH655965A5 true CH655965A5 (de) | 1986-05-30 |
Family
ID=20342404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH7774/81A CH655965A5 (de) | 1980-12-05 | 1981-12-04 | Verfahren fuer die reduktion des harzgehaltes waehrend der herstellung von zellulose-papierbreien aus lignozellulose-materialien. |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS57121692A (enrdf_load_stackoverflow) |
| AU (1) | AU529326B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1162358A (enrdf_load_stackoverflow) |
| CH (1) | CH655965A5 (enrdf_load_stackoverflow) |
| DE (1) | DE3148101C2 (enrdf_load_stackoverflow) |
| FI (1) | FI69657C (enrdf_load_stackoverflow) |
| NO (1) | NO156905C (enrdf_load_stackoverflow) |
| SE (1) | SE424884B (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5930980A (ja) * | 1982-08-12 | 1984-02-18 | 王子製紙株式会社 | リグノセルロ−ス物質の漂白方法 |
| SE502321C2 (sv) * | 1994-03-04 | 1995-10-02 | Kvaerner Pulping Tech | Förfarande vid ozonblekning av sulfitmassa |
| FI20070126A0 (fi) | 2006-09-08 | 2007-02-13 | Linde Ag | Menetelmä hartsin poistamiseksi massasta ja hiilidioksidin tai (bi)karbonaatin käyttö tähän tarkoitukseen |
-
1980
- 1980-12-05 SE SE8008574A patent/SE424884B/sv not_active IP Right Cessation
-
1981
- 1981-11-25 AU AU77888/81A patent/AU529326B2/en not_active Ceased
- 1981-12-04 FI FI813896A patent/FI69657C/fi not_active IP Right Cessation
- 1981-12-04 CH CH7774/81A patent/CH655965A5/de not_active IP Right Cessation
- 1981-12-04 DE DE3148101A patent/DE3148101C2/de not_active Expired
- 1981-12-04 JP JP56196181A patent/JPS57121692A/ja active Granted
- 1981-12-04 NO NO814163A patent/NO156905C/no not_active IP Right Cessation
- 1981-12-07 CA CA000391674A patent/CA1162358A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FI69657C (fi) | 1990-10-31 |
| NO156905C (no) | 1987-12-16 |
| CA1162358A (en) | 1984-02-21 |
| JPS57121692A (en) | 1982-07-29 |
| FI69657B (fi) | 1985-11-29 |
| AU7788881A (en) | 1982-06-17 |
| JPH0114358B2 (enrdf_load_stackoverflow) | 1989-03-10 |
| FI813896L (fi) | 1982-06-06 |
| DE3148101A1 (de) | 1982-08-12 |
| NO814163L (no) | 1982-06-07 |
| SE424884B (sv) | 1982-08-16 |
| NO156905B (no) | 1987-09-07 |
| DE3148101C2 (de) | 1985-11-07 |
| AU529326B2 (en) | 1983-06-02 |
| SE8008574L (sv) | 1982-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |