CA1172808A - Kraft overload recovery process - Google Patents
Kraft overload recovery processInfo
- Publication number
- CA1172808A CA1172808A CA000382387A CA382387A CA1172808A CA 1172808 A CA1172808 A CA 1172808A CA 000382387 A CA000382387 A CA 000382387A CA 382387 A CA382387 A CA 382387A CA 1172808 A CA1172808 A CA 1172808A
- Authority
- CA
- Canada
- Prior art keywords
- kraft
- acidified
- lignin
- rest
- recovery
- 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
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 43
- 239000002655 kraft paper Substances 0.000 title claims abstract description 37
- 229920005610 lignin Polymers 0.000 claims abstract description 26
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002253 acid Substances 0.000 claims abstract description 18
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 29
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 19
- 235000011152 sodium sulphate Nutrition 0.000 claims description 19
- 238000004537 pulping Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 4
- 238000010908 decantation Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000005119 centrifugation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims 3
- 239000000126 substance Substances 0.000 abstract description 5
- 238000011282 treatment Methods 0.000 abstract description 5
- 238000010411 cooking Methods 0.000 abstract description 3
- 235000000346 sugar Nutrition 0.000 description 12
- 150000007513 acids Chemical class 0.000 description 7
- 239000007788 liquid 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
- 239000011734 sodium Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 239000010446 mirabilite Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000007872 degassing Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012978 lignocellulosic material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000004155 Chlorine dioxide Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 235000019398 chlorine dioxide Nutrition 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000003039 volatile agent 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
Landscapes
- Paper (AREA)
- Compounds Of Unknown Constitution (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000382387A CA1172808A (en) | 1981-07-23 | 1981-07-23 | Kraft overload recovery process |
| SE8204364A SE8204364L (sv) | 1981-07-23 | 1982-07-16 | Sett for behandling av svartlut fran kraftmassaprocessen |
| FI822591A FI75614C (fi) | 1981-07-23 | 1982-07-22 | Aotervinningsprocess foer oeverbelastningskraft. |
| JP12883082A JPS5836292A (ja) | 1981-07-23 | 1982-07-23 | クラフト過負荷回収方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000382387A CA1172808A (en) | 1981-07-23 | 1981-07-23 | Kraft overload recovery process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1172808A true CA1172808A (en) | 1984-08-21 |
Family
ID=4120514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000382387A Expired CA1172808A (en) | 1981-07-23 | 1981-07-23 | Kraft overload recovery process |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5836292A (fi) |
| CA (1) | CA1172808A (fi) |
| FI (1) | FI75614C (fi) |
| SE (1) | SE8204364L (fi) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109659C (zh) * | 1999-04-29 | 2003-05-28 | 中国科学院化工冶金研究所 | 一种回收造纸黑液中碱的方法 |
| WO2012005677A1 (en) * | 2010-07-07 | 2012-01-12 | Stora Enso Oyj | Process for production of precipitated lignin from black liquor and precipitated lignin produced by the process |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE0402437D0 (sv) * | 2004-10-07 | 2004-10-07 | Stfi Packforsk Ab | Method for separating lignin from a lignin containing liquid/slurry |
| CL2010001609A1 (es) * | 2010-12-29 | 2011-03-18 | Univ De Concepcion 50% | Proceso para obtener tall oil util que comprende la reaccion entre una solucion de sesquisulfato de sodio y jabon de tall oil. |
| CN104178777B (zh) * | 2014-07-18 | 2017-05-17 | 广西大学 | 制浆碱性废液的木素提取结合电解回收氢氧化钠的方法 |
-
1981
- 1981-07-23 CA CA000382387A patent/CA1172808A/en not_active Expired
-
1982
- 1982-07-16 SE SE8204364A patent/SE8204364L/ not_active Application Discontinuation
- 1982-07-22 FI FI822591A patent/FI75614C/fi not_active IP Right Cessation
- 1982-07-23 JP JP12883082A patent/JPS5836292A/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109659C (zh) * | 1999-04-29 | 2003-05-28 | 中国科学院化工冶金研究所 | 一种回收造纸黑液中碱的方法 |
| WO2012005677A1 (en) * | 2010-07-07 | 2012-01-12 | Stora Enso Oyj | Process for production of precipitated lignin from black liquor and precipitated lignin produced by the process |
| US9567360B2 (en) | 2010-07-07 | 2017-02-14 | Stora Enso Oyj | Process for production of precipitated lignin from black liquor and precipitated lignin produced by the process |
Also Published As
| Publication number | Publication date |
|---|---|
| SE8204364D0 (sv) | 1982-07-16 |
| SE8204364L (sv) | 1983-01-24 |
| FI75614C (fi) | 1988-07-11 |
| FI822591A0 (fi) | 1982-07-22 |
| JPS5836292A (ja) | 1983-03-03 |
| FI822591L (fi) | 1983-01-24 |
| FI75614B (fi) | 1988-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |