NO743078L - - Google Patents
Info
- Publication number
- NO743078L NO743078L NO743078A NO743078A NO743078L NO 743078 L NO743078 L NO 743078L NO 743078 A NO743078 A NO 743078A NO 743078 A NO743078 A NO 743078A NO 743078 L NO743078 L NO 743078L
- Authority
- NO
- Norway
- Prior art keywords
- sodium
- sodium chloride
- mixture
- liquor
- stated
- Prior art date
Links
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 380
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 192
- 239000011780 sodium chloride Substances 0.000 claims description 190
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 167
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 151
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 145
- 235000011152 sodium sulphate Nutrition 0.000 claims description 145
- 239000000203 mixture Substances 0.000 claims description 106
- 238000000034 method Methods 0.000 claims description 102
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 98
- 238000004061 bleaching Methods 0.000 claims description 81
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 71
- 229910001868 water Inorganic materials 0.000 claims description 69
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 54
- 239000004155 Chlorine dioxide Substances 0.000 claims description 49
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 49
- 239000000126 substance Substances 0.000 claims description 48
- 239000000243 solution Substances 0.000 claims description 46
- 230000029087 digestion Effects 0.000 claims description 43
- 239000007787 solid Substances 0.000 claims description 42
- 238000005406 washing Methods 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 40
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 35
- 238000001704 evaporation Methods 0.000 claims description 35
- 230000008020 evaporation Effects 0.000 claims description 33
- 239000000460 chlorine Substances 0.000 claims description 32
- 229910052801 chlorine Inorganic materials 0.000 claims description 32
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 31
- 239000007864 aqueous solution Substances 0.000 claims description 31
- 238000004519 manufacturing process Methods 0.000 claims description 28
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 24
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 23
- 238000009835 boiling Methods 0.000 claims description 22
- 238000000605 extraction Methods 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 18
- 239000000155 melt Substances 0.000 claims description 18
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 15
- 239000011734 sodium Substances 0.000 claims description 14
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 13
- 229910052708 sodium Inorganic materials 0.000 claims description 13
- 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 description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 12
- 239000003546 flue gas Substances 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 12
- 239000007844 bleaching agent Substances 0.000 claims description 11
- 239000002244 precipitate Substances 0.000 claims description 11
- 239000012429 reaction media Substances 0.000 claims description 11
- 239000002351 wastewater Substances 0.000 claims description 11
- 241001062472 Stokellia anisodon Species 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 10
- 239000012452 mother liquor Substances 0.000 claims description 10
- 238000001556 precipitation Methods 0.000 claims description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 9
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 9
- 230000002378 acidificating effect Effects 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 9
- 239000001913 cellulose Substances 0.000 claims description 9
- 239000004571 lime Substances 0.000 claims description 9
- 230000008929 regeneration Effects 0.000 claims description 9
- 238000011069 regeneration method Methods 0.000 claims description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 5
- 239000012736 aqueous medium Substances 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- 239000002609 medium Substances 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000008247 solid mixture Substances 0.000 claims description 3
- 239000002608 ionic liquid Substances 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims 4
- 229920003043 Cellulose fiber Polymers 0.000 claims 3
- 239000003518 caustics Substances 0.000 claims 3
- 239000000292 calcium oxide Substances 0.000 claims 2
- 235000012255 calcium oxide Nutrition 0.000 claims 2
- 239000000470 constituent Substances 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 238000004952 furnace firing Methods 0.000 claims 1
- 230000001376 precipitating effect Effects 0.000 claims 1
- 239000010865 sewage Substances 0.000 claims 1
- 239000000779 smoke Substances 0.000 claims 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 7
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910021653 sulphate ion Inorganic materials 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 239000004133 Sodium thiosulphate Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical class [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000009621 Solvay process Methods 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- OHDVHWAWMUKQFF-UHFFFAOYSA-N [O].[Na].[S] Chemical class [O].[Na].[S] OHDVHWAWMUKQFF-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000012431 aqueous reaction media Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- IYGFDEZBVCNBRU-UHFFFAOYSA-L disodium sulfuric acid sulfate Chemical compound [H+].[H+].[H+].[H+].[Na+].[Na+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O IYGFDEZBVCNBRU-UHFFFAOYSA-L 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000013505 freshwater 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 125000004436 sodium atom Chemical group 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 1
- 235000011182 sodium carbonates Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical group 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 210000004885 white matter Anatomy 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
- D21C11/0035—Introduction of compounds, e.g. sodium sulfate, into the cycle in order to compensate for the losses of pulping agents
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4086573 | 1973-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO743078L true NO743078L (fr) | 1975-03-24 |
Family
ID=10417008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO743078A NO743078L (fr) | 1973-08-30 | 1974-08-28 |
Country Status (3)
| Country | Link |
|---|---|
| FI (1) | FI253674A (fr) |
| NO (1) | NO743078L (fr) |
| SE (1) | SE7410948L (fr) |
-
1974
- 1974-08-28 NO NO743078A patent/NO743078L/no unknown
- 1974-08-29 FI FI2536/74A patent/FI253674A/fi unknown
- 1974-08-29 SE SE7410948A patent/SE7410948L/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE7410948L (fr) | 1975-03-03 |
| FI253674A (fr) | 1975-03-01 |
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