CA1103412A - Traduction non-disponible - Google Patents
Traduction non-disponibleInfo
- Publication number
- CA1103412A CA1103412A CA294,604A CA294604A CA1103412A CA 1103412 A CA1103412 A CA 1103412A CA 294604 A CA294604 A CA 294604A CA 1103412 A CA1103412 A CA 1103412A
- Authority
- CA
- Canada
- Prior art keywords
- liquor
- nahco3
- pulp
- cycle
- digestor
- 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
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002655 kraft paper Substances 0.000 title description 3
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 30
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 30
- 238000004061 bleaching Methods 0.000 claims abstract description 17
- 241001062472 Stokellia anisodon Species 0.000 claims abstract description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 235000011149 sulphuric acid Nutrition 0.000 claims abstract description 7
- 238000001704 evaporation Methods 0.000 claims abstract description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 27
- 239000007844 bleaching agent Substances 0.000 claims description 21
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 15
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 15
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 15
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000004076 pulp bleaching Methods 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- -1 alkali metal chlorate Chemical class 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 238000009993 causticizing Methods 0.000 claims description 2
- 239000003546 flue gas Substances 0.000 claims description 2
- 239000012452 mother liquor Substances 0.000 claims description 2
- 229910052936 alkali metal sulfate Inorganic materials 0.000 claims 2
- 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 claims 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 claims 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M chlorate Inorganic materials [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 238000004174 sulfur cycle Methods 0.000 abstract description 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract description 11
- 239000003265 pulping liquor Substances 0.000 abstract description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 5
- 235000011152 sodium sulphate Nutrition 0.000 abstract description 5
- 239000006227 byproduct Substances 0.000 abstract description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract description 3
- 241000680171 Retropinna retropinna Species 0.000 abstract description 2
- 239000007832 Na2SO4 Substances 0.000 abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 36
- 229940099041 chlorine dioxide Drugs 0.000 description 24
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 14
- 239000000047 product Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 13
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 11
- 150000001805 chlorine compounds Chemical class 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 238000005406 washing Methods 0.000 description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 238000000605 extraction Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 7
- 229910052979 sodium sulfide Inorganic materials 0.000 description 7
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 239000003518 caustics Substances 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 235000017168 chlorine Nutrition 0.000 description 6
- 229940060038 chlorine Drugs 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 235000017550 sodium carbonate Nutrition 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 230000029087 digestion Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 2
- 238000005282 brightening Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910013868 M2SO4 Inorganic materials 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical class OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- ZLCCLBKPLLUIJC-UHFFFAOYSA-L disodium tetrasulfane-1,4-diide Chemical compound [Na+].[Na+].[S-]SS[S-] ZLCCLBKPLLUIJC-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 238000009656 pre-carbonization Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Paper (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA294,604A CA1103412A (fr) | 1978-01-09 | 1978-01-09 | Traduction non-disponible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA294,604A CA1103412A (fr) | 1978-01-09 | 1978-01-09 | Traduction non-disponible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1103412A true CA1103412A (fr) | 1981-06-23 |
Family
ID=4110491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA294,604A Expired CA1103412A (fr) | 1978-01-09 | 1978-01-09 | Traduction non-disponible |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1103412A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5607549A (en) * | 1994-06-17 | 1997-03-04 | Ahlstrom Machinery Corporation | Method for the manufacture of cooking liquors of different sulphidity by green liquor crystallization |
-
1978
- 1978-01-09 CA CA294,604A patent/CA1103412A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5607549A (en) * | 1994-06-17 | 1997-03-04 | Ahlstrom Machinery Corporation | Method for the manufacture of cooking liquors of different sulphidity by green liquor crystallization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |