FI90356B - Förfarande för framställning av alkalimetallhydroxid - Google Patents
Förfarande för framställning av alkalimetallhydroxid Download PDFInfo
- Publication number
- FI90356B FI90356B FI921108A FI921108A FI90356B FI 90356 B FI90356 B FI 90356B FI 921108 A FI921108 A FI 921108A FI 921108 A FI921108 A FI 921108A FI 90356 B FI90356 B FI 90356B
- Authority
- FI
- Finland
- Prior art keywords
- alkali metal
- process according
- neutralization
- electrolysis
- chloride solution
- Prior art date
Links
- 150000008044 alkali metal hydroxides Chemical class 0.000 title abstract description 16
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 23
- 229910001514 alkali metal chloride Inorganic materials 0.000 claims abstract description 21
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000460 chlorine Substances 0.000 claims abstract description 15
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 40
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 22
- 238000006386 neutralization reaction Methods 0.000 claims description 19
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 18
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 18
- 239000011780 sodium chloride Substances 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052753 mercury Inorganic materials 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 241001122767 Theaceae Species 0.000 claims 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 abstract description 10
- 150000008041 alkali metal carbonates Chemical class 0.000 abstract description 10
- 239000003513 alkali Substances 0.000 abstract description 8
- 230000003472 neutralizing effect Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 25
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 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 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052936 alkali metal sulfate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- -1 chloral alkali metal Chemical class 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012527 feed solution Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Claims (8)
- 8 9 0356 tegas, och den sdlunda erhdllna alkalimetallkloridlösningen inleds sedan efter rening i elektrolyscellerna.
- 4. Förfarande enligt patentkravet 2 eller 3, kännetecknat 5 av att alkalimetallkloridlösningen efter neutraliseringen uppvisar en koncentration som ligger närä den mättade kon-centrationen.
- 5. Förfarande enligt ndgot av patentkraven 2-4, kanneteck-10 nat av att alkalimetallkloridlösningens pH efter neutraliseringen är mellan 3 och 11.
- 6. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat av att neutraliseringen utförs i ett eller fle- 15 ra steg.
- 7. Förfarande enligt nägot av de föregdende patentkraven, kännetecknat av att temperaturen vid neutraliseringen dr mellan 20°C och 100°C. 20
- 8. Förfarande enligt ndgot av de föregdende patentkraven, kännetecknat av att elektrolyseringen av alkalimetallkloridlösningen utförs i en kvicksilverkatod-, diafragma- eller membrancell. : 25
- 9. Förfarande enligt ndgot av de föregdende patentkraven, kännetecknat av att det för neutraliseringen anvanda klorvdtet erhdlls frdn elektrolysen av alkalimetallkloridlösningen. 30 10. Förfarande enligt patentkravet 9, kännetecknat av att klor och vdte efter elektrolysen syntetiseras till klorvdte.
- 11. Förfarande enligt patentkravet 10, kännetecknat av att klorvätegasen renas antingen genom att kondensera och för-.- 35 anga klorvdtet eller företrädesvis genom att absorbera klorvdtet i vatten eller i en klorvdtesyralösning och avdestil-lera ren klorvätegas för neutraliseringen. 90356 c°2 ί 7 "2° I k ψ Na2C03 NaCl(aq) -» 6 -* 2 -> 1 -> NaOH(aq) NaCl(aq) 5 «--- iHC1(^ ,_, Cl, 4- 4 «- 3 Ho Ι L____J «-—- | __r H^O(g) H2°
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI921108A FI90356C (sv) | 1992-03-13 | 1992-03-13 | Förfarande för framställning av alkalimetallhydroxid |
| AU34098/93A AU657842B2 (en) | 1992-03-13 | 1993-03-09 | Method for producing alkaline metal hydroxide |
| DE69326788T DE69326788T2 (de) | 1992-03-13 | 1993-03-10 | Verfahren zur Herstellung von Alkalimetall-Hydroxyd |
| AT93103824T ATE185855T1 (de) | 1992-03-13 | 1993-03-10 | Verfahren zur herstellung von alkalimetall- hydroxyd |
| EP93103824A EP0560316B1 (en) | 1992-03-13 | 1993-03-10 | Method for producing alkaline metal hydroxide |
| ES93103824T ES2137203T3 (es) | 1992-03-13 | 1993-03-10 | Metodo para producir hidroxido de metal alcalino. |
| RU9393004606A RU2091509C1 (ru) | 1992-03-13 | 1993-03-12 | Способ получения гидроокиси щелочного металла |
| JP5051805A JP2755542B2 (ja) | 1992-03-13 | 1993-03-12 | アルカリ金属水酸化物の製造方法 |
| CA002092651A CA2092651C (en) | 1992-03-13 | 1993-03-12 | Method for producing alkaline metal hydroxide |
| US08/558,350 US5651875A (en) | 1992-03-13 | 1995-11-16 | Process for producing alkali metal hydroxide |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI921108A FI90356C (sv) | 1992-03-13 | 1992-03-13 | Förfarande för framställning av alkalimetallhydroxid |
| FI921108 | 1993-02-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI921108A0 FI921108A0 (sv) | 1992-03-13 |
| FI90356B true FI90356B (sv) | 1993-10-15 |
| FI90356C FI90356C (sv) | 1994-01-25 |
Family
ID=8534924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI921108A FI90356C (sv) | 1992-03-13 | 1992-03-13 | Förfarande för framställning av alkalimetallhydroxid |
Country Status (1)
| Country | Link |
|---|---|
| FI (1) | FI90356C (sv) |
-
1992
- 1992-03-13 FI FI921108A patent/FI90356C/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI90356C (sv) | 1994-01-25 |
| FI921108A0 (sv) | 1992-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | Publication of examined application | ||
| PC | Transfer of assignment of patent |
Owner name: EKA CHEMICALS OY |
|
| MA | Patent expired |