CA1289305C - Production of high strength linerboard with oxygen and alkali - Google Patents
Production of high strength linerboard with oxygen and alkaliInfo
- Publication number
- CA1289305C CA1289305C CA000559542A CA559542A CA1289305C CA 1289305 C CA1289305 C CA 1289305C CA 000559542 A CA000559542 A CA 000559542A CA 559542 A CA559542 A CA 559542A CA 1289305 C CA1289305 C CA 1289305C
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- oxygen
- alkali
- linerboard
- treated
- 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.)
- Expired - Fee Related
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000001301 oxygen Substances 0.000 title claims abstract description 40
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 40
- 239000003513 alkali Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000010411 cooking Methods 0.000 claims abstract description 3
- 229920005610 lignin Polymers 0.000 claims description 11
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 150000001720 carbohydrates Chemical class 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000029087 digestion Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000011282 treatment Methods 0.000 abstract description 18
- 238000007670 refining Methods 0.000 abstract description 5
- 239000002023 wood Substances 0.000 abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 238000010009 beating Methods 0.000 description 7
- 239000002655 kraft paper 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 5
- 235000014633 carbohydrates Nutrition 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 235000005018 Pinus echinata Nutrition 0.000 description 3
- 241001236219 Pinus echinata Species 0.000 description 3
- 235000017339 Pinus palustris Nutrition 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012978 lignocellulosic material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 101150020569 B3R gene Proteins 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 101100540425 Vaccinia virus (strain Copenhagen) VGF gene Proteins 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- GZUITABIAKMVPG-UHFFFAOYSA-N raloxifene Chemical compound C1=CC(O)=CC=C1C1=C(C(=O)C=2C=CC(OCCN3CCCCC3)=CC=2)C2=CC=C(O)C=C2S1 GZUITABIAKMVPG-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 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
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
-
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1786687A | 1987-02-24 | 1987-02-24 | |
| US17,866 | 1987-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1289305C true CA1289305C (en) | 1991-09-24 |
Family
ID=21784970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000559542A Expired - Fee Related CA1289305C (en) | 1987-02-24 | 1988-02-23 | Production of high strength linerboard with oxygen and alkali |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS63282388A (fi) |
| CA (1) | CA1289305C (fi) |
| FI (1) | FI880870A (fi) |
| NO (1) | NO880773L (fi) |
| SE (1) | SE8800610L (fi) |
-
1988
- 1988-02-23 SE SE8800610A patent/SE8800610L/xx not_active Application Discontinuation
- 1988-02-23 NO NO880773A patent/NO880773L/no unknown
- 1988-02-23 CA CA000559542A patent/CA1289305C/en not_active Expired - Fee Related
- 1988-02-24 JP JP63041815A patent/JPS63282388A/ja active Pending
- 1988-02-24 FI FI880870A patent/FI880870A/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO880773D0 (no) | 1988-02-23 |
| SE8800610L (sv) | 1988-08-25 |
| FI880870A (fi) | 1988-08-25 |
| JPS63282388A (ja) | 1988-11-18 |
| FI880870A0 (fi) | 1988-02-24 |
| NO880773L (no) | 1988-08-25 |
| SE8800610D0 (sv) | 1988-02-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |