NO742827L - - Google Patents
Info
- Publication number
- NO742827L NO742827L NO742827A NO742827A NO742827L NO 742827 L NO742827 L NO 742827L NO 742827 A NO742827 A NO 742827A NO 742827 A NO742827 A NO 742827A NO 742827 L NO742827 L NO 742827L
- Authority
- NO
- Norway
- Prior art keywords
- sodium
- mixture
- sodium chloride
- solution
- sulphide
- Prior art date
Links
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 562
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 342
- 239000011780 sodium chloride Substances 0.000 claims description 281
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 275
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 250
- 239000000243 solution Substances 0.000 claims description 190
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 170
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 166
- 235000011152 sodium sulphate Nutrition 0.000 claims description 166
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 158
- 238000000034 method Methods 0.000 claims description 123
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 107
- 239000000203 mixture Substances 0.000 claims description 99
- 238000004061 bleaching Methods 0.000 claims description 95
- 239000007864 aqueous solution Substances 0.000 claims description 62
- 238000005406 washing Methods 0.000 claims description 57
- 239000007788 liquid Substances 0.000 claims description 52
- 239000007787 solid Substances 0.000 claims description 49
- 238000002386 leaching Methods 0.000 claims description 46
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 38
- 239000000126 substance Substances 0.000 claims description 32
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 31
- 239000003518 caustics Substances 0.000 claims description 30
- 229910052801 chlorine Inorganic materials 0.000 claims description 28
- 238000000605 extraction Methods 0.000 claims description 28
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 26
- 239000000460 chlorine Substances 0.000 claims description 26
- 238000010411 cooking Methods 0.000 claims description 25
- 238000009835 boiling Methods 0.000 claims description 24
- 229910052708 sodium Inorganic materials 0.000 claims description 24
- 239000002244 precipitate Substances 0.000 claims description 23
- 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 22
- 239000011734 sodium Substances 0.000 claims description 22
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 21
- 229920001131 Pulp (paper) Polymers 0.000 claims description 20
- 239000012452 mother liquor Substances 0.000 claims description 20
- 239000008247 solid mixture Substances 0.000 claims description 20
- 239000004155 Chlorine dioxide Substances 0.000 claims description 19
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 16
- 239000013078 crystal Substances 0.000 claims description 16
- 238000005194 fractionation Methods 0.000 claims description 15
- 239000012736 aqueous medium Substances 0.000 claims description 14
- 238000004064 recycling Methods 0.000 claims description 13
- 239000007844 bleaching agent Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000001556 precipitation Methods 0.000 claims description 11
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 8
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 8
- 239000004571 lime Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 4
- 239000002657 fibrous material Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims 3
- 239000012141 concentrate Substances 0.000 claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- 229920002522 Wood fibre Polymers 0.000 claims 1
- 238000009825 accumulation Methods 0.000 claims 1
- 238000010936 aqueous wash Methods 0.000 claims 1
- 150000001805 chlorine compounds Chemical class 0.000 claims 1
- 238000007654 immersion Methods 0.000 claims 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims 1
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
- 239000002025 wood fiber Substances 0.000 claims 1
- 238000001704 evaporation Methods 0.000 description 48
- 230000008020 evaporation Effects 0.000 description 47
- 239000000155 melt Substances 0.000 description 41
- 238000002425 crystallisation Methods 0.000 description 28
- 230000008025 crystallization Effects 0.000 description 25
- 230000004048 modification Effects 0.000 description 24
- 238000012986 modification Methods 0.000 description 24
- 238000004090 dissolution Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 13
- 238000011084 recovery Methods 0.000 description 13
- 230000008929 regeneration Effects 0.000 description 11
- 238000011069 regeneration method Methods 0.000 description 11
- 241001062472 Stokellia anisodon Species 0.000 description 8
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 230000002378 acidificating effect Effects 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 229920006395 saturated elastomer Polymers 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- 150000003464 sulfur compounds Chemical class 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000010790 dilution Methods 0.000 description 5
- 239000012895 dilution Substances 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 125000001309 chloro group Chemical group Cl* 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000002655 kraft paper Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 125000004436 sodium atom Chemical group 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- -1 sodium sulphate Chemical class 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
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 206010015137 Eructation Diseases 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000004133 Sodium thiosulphate Substances 0.000 description 1
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical class [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 1
- OHDVHWAWMUKQFF-UHFFFAOYSA-N [O].[Na].[S] Chemical class [O].[Na].[S] OHDVHWAWMUKQFF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910052936 alkali metal sulfate Inorganic materials 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 208000027687 belching Diseases 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical class OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000009993 causticizing Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000012459 cleaning agent Substances 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
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000422 nocturnal effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- XHFLOLLMZOTPSM-UHFFFAOYSA-M sodium;hydrogen carbonate;hydrate Chemical compound [OH-].[Na+].OC(O)=O XHFLOLLMZOTPSM-UHFFFAOYSA-M 0.000 description 1
- ZNKXTIAQRUWLRL-UHFFFAOYSA-M sodium;sulfane;hydroxide Chemical class O.[Na+].[SH-] ZNKXTIAQRUWLRL-UHFFFAOYSA-M 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material 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
- D21C11/0042—Fractionating or concentration of spent liquors by special methods
-
- 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
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
- D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these 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
- 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)
- Noodles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3741373 | 1973-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO742827L true NO742827L (fi) | 1975-03-03 |
Family
ID=10396310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO742827A NO742827L (fi) | 1973-08-07 | 1974-08-05 |
Country Status (4)
| Country | Link |
|---|---|
| ES (1) | ES429003A1 (fi) |
| FI (1) | FI58523C (fi) |
| NO (1) | NO742827L (fi) |
| SE (1) | SE403633B (fi) |
-
1974
- 1974-08-05 NO NO742827A patent/NO742827L/no unknown
- 1974-08-06 ES ES429003A patent/ES429003A1/es not_active Expired
- 1974-08-06 SE SE7410086A patent/SE403633B/xx unknown
- 1974-08-07 FI FI2351/74A patent/FI58523C/fi active
Also Published As
| Publication number | Publication date |
|---|---|
| FI58523B (fi) | 1980-10-31 |
| ES429003A1 (es) | 1976-08-16 |
| SE7410086L (fi) | 1975-02-10 |
| FI235174A (fi) | 1975-02-08 |
| FI58523C (fi) | 1981-02-10 |
| SE403633B (sv) | 1978-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3909344A (en) | Removal of sodium chloride from pulp mill operations | |
| US3746612A (en) | Removal of sodium chloride from white pulping liquor | |
| US5702570A (en) | Process of producing sodium hydroxide from sodium sulphate in a pulp mill | |
| FI62363B (fi) | Foerfarande foer aotervinning av natriumklorid fraon cellulosafabrikens processer | |
| US4093508A (en) | Process for recovering chemicals from the waste liquors of sulfate cellulose digestion and the waste waters of bleaching | |
| CA1122360A (en) | Method at the digestion of cellulose-containing material | |
| US3950217A (en) | Removal of sodium chloride from pulping operations | |
| CA1058358A (en) | Removal of dissolved salts from sulphide liquors | |
| BR112015001412B1 (pt) | métodos para remoção de polpa a partir de madeira e recuperação de produto químico de formação de polpa a partir de licor negro, e para a recuperação de produtos químicos de formação de polpa de madeira a partir de licor negro | |
| US3650889A (en) | Pollution controlled polysulfide recovery process | |
| US5607548A (en) | Process for dividing the sulphide content of the green liquor for the production of white liquors having high and low sulphidity | |
| US4253911A (en) | Process for maintaining a low sodium chloride content in recycled sodium chemicals of sodium-based pulp manufacturing processes | |
| NO742827L (fi) | ||
| US4249990A (en) | Process for removal of potassium values from pulp mill liquors | |
| SE466551B (sv) | Foerfarande foer aatervinning av avlutarna fraan kokning och blekning av cellulosa | |
| US3945880A (en) | Sodium chloride removal in pulp mill systems | |
| CA1064206A (en) | Method of recovering substances in the extraction of spent liquors from the delignification of lignocellulosic material by means of chloride-producing bleaching agents | |
| NO762084L (fi) | ||
| SU1109057A3 (ru) | Способ получени целлюлозы | |
| CA1109611A (en) | Potassium-based pulp mill process | |
| CA1102055A (en) | Modified system for recovery of sodium chloride from white liquor | |
| NO772300L (no) | Fremgangsmaate ved koking av cellulosefibre | |
| SE435304B (sv) | Utnyttjande av vid kokvetskeberedning framstellt svavelvete vid framstellning av klordioxid for blekning | |
| NO743078L (fi) | ||
| CS218568B2 (cs) | Způsob odstraňování chloridu sodného při výrobě buničiny še zařazeným regeneračním postupem |