DE1621692A1 - Verfahren zum Bearbeiten von mechanischen Holzpulpen - Google Patents
Verfahren zum Bearbeiten von mechanischen HolzpulpenInfo
- Publication number
- DE1621692A1 DE1621692A1 DE19671621692 DE1621692A DE1621692A1 DE 1621692 A1 DE1621692 A1 DE 1621692A1 DE 19671621692 DE19671621692 DE 19671621692 DE 1621692 A DE1621692 A DE 1621692A DE 1621692 A1 DE1621692 A1 DE 1621692A1
- Authority
- DE
- Germany
- Prior art keywords
- pulp
- drying
- brightness
- hydrogen peroxide
- bleaching
- 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 description 21
- 229920001131 Pulp (paper) Polymers 0.000 title description 8
- 238000012545 processing Methods 0.000 title description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 11
- 238000004061 bleaching Methods 0.000 claims description 10
- 239000007844 bleaching agent Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229920005610 lignin Polymers 0.000 claims description 2
- 239000000575 pesticide Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 239000003638 chemical reducing agent Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 239000013521 mastic Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000011734 sodium Substances 0.000 description 7
- 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 6
- 239000003921 oil Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- BHMLFPOTZYRDKA-IRXDYDNUSA-N (2s)-2-[(s)-(2-iodophenoxy)-phenylmethyl]morpholine Chemical compound IC1=CC=CC=C1O[C@@H](C=1C=CC=CC=1)[C@H]1OCCNC1 BHMLFPOTZYRDKA-IRXDYDNUSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 241000219000 Populus Species 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 244000283070 Abies balsamea Species 0.000 description 2
- 235000007173 Abies balsamea Nutrition 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000218657 Picea Species 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 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
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 235000004710 Abies lasiocarpa Nutrition 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 241000764238 Isis Species 0.000 description 1
- 101100046352 Mus musculus Tjap1 gene Proteins 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 206010037867 Rash macular Diseases 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- PMRPLIMEJYCXCT-UHFFFAOYSA-N hydrogen peroxide;lead Chemical compound [Pb].OO PMRPLIMEJYCXCT-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010747 number 6 fuel oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005502 peroxidation Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 1
- 239000013055 pulp slurry Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002023 wood 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
- 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
- D21C9/1026—Other features in bleaching processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58407866A | 1966-10-04 | 1966-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1621692A1 true DE1621692A1 (de) | 1971-06-03 |
Family
ID=24335850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19671621692 Pending DE1621692A1 (de) | 1966-10-04 | 1967-09-27 | Verfahren zum Bearbeiten von mechanischen Holzpulpen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3492199A (enrdf_load_stackoverflow) |
| CH (1) | CH483518A (enrdf_load_stackoverflow) |
| DE (1) | DE1621692A1 (enrdf_load_stackoverflow) |
| ES (1) | ES345665A1 (enrdf_load_stackoverflow) |
| FR (1) | FR1542837A (enrdf_load_stackoverflow) |
| NO (1) | NO120217B (enrdf_load_stackoverflow) |
| SE (1) | SE341519B (enrdf_load_stackoverflow) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3630828A (en) * | 1968-05-13 | 1971-12-28 | Pulp Paper Res Inst | Bleaching of a low-density, substantially uncompacted, porous fluffed cellulosic pulp |
| OA03094A (fr) * | 1968-07-11 | 1970-12-15 | P P I South African Pulp And P | Perfectionnements à la délignification et au blanchiment des pâtes de cellulose avec l'oxygène gazeux. |
| US3650887A (en) * | 1969-04-21 | 1972-03-21 | Kimberly Clark Co | Wood pulp bleaching process utilizing peroxide-silicate bleaching solution |
| CA902861A (en) * | 1969-11-27 | 1972-06-20 | Pulp And Paper Research Institute Of Canada | Bleaching of cellulosic pulp |
| US3627630A (en) * | 1969-12-04 | 1971-12-14 | Beloit Corp | Method of flash drying pulp |
| US4022965A (en) * | 1975-01-13 | 1977-05-10 | Crown Zellerbach Corporation | Process for producing reactive, homogeneous, self-bondable lignocellulose fibers |
| SE432118B (sv) * | 1975-02-26 | 1984-03-19 | Moelnlycke Ab | Mekanisk fluffmassa och sett for framstellning derav |
| AT395180B (de) * | 1989-08-16 | 1992-10-12 | Andritz Ag Maschf | Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung |
| SE519462C2 (sv) * | 2001-06-21 | 2003-03-04 | Holmen Ab | Förfarande för framställning av blekt termomekanisk massa (TMP) eller blekt kemitermomekanisk massa (CTMP) |
| US7297225B2 (en) * | 2004-06-22 | 2007-11-20 | Georgia-Pacific Consumer Products Lp | Process for high temperature peroxide bleaching of pulp with cool discharge |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2492047A (en) * | 1946-03-30 | 1949-12-20 | Du Pont | Bleaching wood pulp |
| US3055795A (en) * | 1957-09-09 | 1962-09-25 | Bauer Bros Co | Handling of paper pulp |
| SE317864B (enrdf_load_stackoverflow) * | 1963-10-05 | 1969-11-24 | Svenska Cellulosa Ab |
-
1966
- 1966-10-04 US US584078A patent/US3492199A/en not_active Expired - Lifetime
-
1967
- 1967-09-15 NO NO169759A patent/NO120217B/no unknown
- 1967-09-27 DE DE19671621692 patent/DE1621692A1/de active Pending
- 1967-09-29 FR FR122896A patent/FR1542837A/fr not_active Expired
- 1967-10-02 CH CH1378267A patent/CH483518A/de not_active IP Right Cessation
- 1967-10-02 ES ES345665A patent/ES345665A1/es not_active Expired
- 1967-10-04 SE SE13604/67A patent/SE341519B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE341519B (enrdf_load_stackoverflow) | 1971-12-27 |
| US3492199A (en) | 1970-01-27 |
| FR1542837A (fr) | 1968-10-18 |
| CH483518A (de) | 1969-12-31 |
| NO120217B (enrdf_load_stackoverflow) | 1970-09-14 |
| ES345665A1 (es) | 1968-11-16 |
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