FI112382B - Förfarande för att använda en membrancell - Google Patents
Förfarande för att använda en membrancell Download PDFInfo
- Publication number
- FI112382B FI112382B FI933649A FI933649A FI112382B FI 112382 B FI112382 B FI 112382B FI 933649 A FI933649 A FI 933649A FI 933649 A FI933649 A FI 933649A FI 112382 B FI112382 B FI 112382B
- Authority
- FI
- Finland
- Prior art keywords
- temperature
- cell
- anolyte
- process according
- sodium
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 18
- 239000012528 membrane Substances 0.000 title description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 23
- 239000003054 catalyst Substances 0.000 claims description 13
- 239000007864 aqueous solution Substances 0.000 claims description 6
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims description 4
- 239000012266 salt solution Substances 0.000 claims description 3
- 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 claims description 2
- 239000003014 ion exchange membrane Substances 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims 2
- 229910001415 sodium ion Inorganic materials 0.000 claims 1
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 6
- 230000020477 pH reduction Effects 0.000 description 4
- 239000004155 Chlorine dioxide Substances 0.000 description 3
- 229920000557 Nafion® Polymers 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 238000005341 cation exchange Methods 0.000 description 3
- 235000019398 chlorine dioxide Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
- -1 chlorate ions Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 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
- 239000003929 acidic solution Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M chlorate Inorganic materials [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
- C25B1/265—Chlorates
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Claims (7)
1. Förfarande för att driva en elektrolytisk cell där anod- och katodavdelningama är separerade med en jonbytesmembran, kännetecknat av att drivspänningen 5 av nämnda cell minskas genom att upprätthälla en katolyt i nämnda katodavdelning vid en temperatur som är ätminstone ca 10 °C högre än anolytens i nämnda anodav-delning.
2. Förfarande enligt patentkrav 1, kännetecknat därav, att nämnda 10 anolyttemperatur är ca 40° tili ca 55 °C.
3. Förfarande enligt patentkrav 1 eller 2, kännetecknat därav, att nämnda katolyttemperatur stiger tili ca 90 °C. 15
4. Förfarande enligt nägot av patentkraven 1-3, kännetecknat därav, att nämnda anolyt innefattar en vattenhaltig natriumsaltlösning, natriumjoner överförs frän anodavdelningen tili katodavdelningen, anolyten surgörs med en elektrolys-reaktion i nämnda cell och katolyten alkaliseras med elektrolysreaktioner i nämnda cell. 20
5. Förfarande enligt patentkrav 4, kännetecknat därav, att nämnda • . vattenhaltiga natriumsaltlösning är en vattenlösning av natriumklorat och natrium- t f, > ’ seskvisulfat och nämnda katolyt upprätthälls vid en natriumhydroxidkoncentration pä '·,;,: mindre än ca 20 vikt%. I < 1 ! .· 25 i » 1 1
/ 6. Förfarande enligt patentkrav 5, kännetecknat därav, att nämnda i 1 1 natriumhydroxidkoncentration är ca 5 tili ca 15 vikt%. * » 1 < » i
’ 7. Förfarande enligt nagot av patentkraven 1-6, kännetecknat därav, att * | » 30 nämnda katolyt upprätthälls vid en temperatur pä ätminstone 20 °C högre än ‘i anolyten. ill)l » 1 » » I 1 1 t » · i t » ·
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US93310892 | 1992-08-21 | ||
| US07/933,108 US5256261A (en) | 1992-08-21 | 1992-08-21 | Membrane cell operation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI933649A0 FI933649A0 (fi) | 1993-08-19 |
| FI933649L FI933649L (fi) | 1994-02-22 |
| FI112382B true FI112382B (sv) | 2003-11-28 |
Family
ID=25463391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI933649A FI112382B (sv) | 1992-08-21 | 1993-08-19 | Förfarande för att använda en membrancell |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5256261A (sv) |
| CA (1) | CA2100483C (sv) |
| FI (1) | FI112382B (sv) |
| SE (1) | SE508344C2 (sv) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1248564B (it) * | 1991-06-27 | 1995-01-19 | Permelec Spa Nora | Processo di decomposizione elettrochimica di sali neutri senza co-produzione di alogeni o di acido e cella di elettrolisi adatta per la sua realizzazione. |
| BR9401547A (pt) * | 1993-04-26 | 1994-11-22 | Eka Nobel Ab | Processo para a produção de clorato de metal alcalino |
| US6126702A (en) | 1998-03-09 | 2000-10-03 | International Paper Company | Apparatus and method for treating sesquisulfate waste streams |
| RU2526013C2 (ru) * | 2010-03-23 | 2014-08-20 | Интернэшнл Пэйпа Кампани | Усовершенствованные система и способ рециркуляции фильтрата хтмм |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3884777A (en) * | 1974-01-02 | 1975-05-20 | Hooker Chemicals Plastics Corp | Electrolytic process for manufacturing chlorine dioxide, hydrogen peroxide, chlorine, alkali metal hydroxide and hydrogen |
| JPS5111098A (en) * | 1974-07-19 | 1976-01-28 | Asahi Glass Co Ltd | Suisankakariumuno seizohoho |
| US3917521A (en) * | 1974-10-23 | 1975-11-04 | Dow Chemical Co | Sulfurless electrolytic concentration of aqueous sulfuric acid solutions |
| CA1059943A (en) * | 1976-07-20 | 1979-08-07 | Pierre L. Claessens | Electrolytically forming peroxosulfuric acid to oxidize organic material in sulfuric acid |
| DE2743820C3 (de) * | 1977-09-29 | 1981-10-22 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Anwendung eines Verfahrens zum elektrochemischen Umsetzen von in einer Elektrolytlösung befindlichen Stoffen beim Schwefelsäure-Hybrid-Prozeß |
| DE3315626A1 (de) * | 1983-04-29 | 1984-10-31 | Hoechst Ag, 6230 Frankfurt | Verfahren zur anreicherung von schwefelsaeure |
| US4595469A (en) * | 1983-05-31 | 1986-06-17 | Chevron Research Company | Electrolytic process for production of gaseous hydrogen chloride and aqueous alkali metal hydroxide |
| US4968394A (en) * | 1986-08-15 | 1990-11-06 | Olin Corporation | Method of reducing excess nitric acid in aqueous hydroxylamine nitrate solutions |
| US4849073A (en) * | 1986-08-15 | 1989-07-18 | Olin Corporation | Direct electrochemical reduction of nitric acid to hydroxylamine nitrate |
| CA1257560A (en) * | 1986-10-29 | 1989-07-18 | Tenneco Canada Inc. (Erco Division) | Electrochemical removal of hypochlorites from chlorate cell liquors |
| US4806215A (en) * | 1988-07-27 | 1989-02-21 | Tenneco Canada Inc. | Combined process for production of chlorine dioxide and sodium hydroxide |
| US4996098A (en) * | 1989-02-28 | 1991-02-26 | E. I. Du Pont De Nemours And Company | Coated cation exchange fabric and process |
| US4990228A (en) * | 1989-02-28 | 1991-02-05 | E. I. Du Pont De Nemours And Company | Cation exchange membrane and use |
| EP0532535B2 (en) * | 1990-06-07 | 2003-07-09 | Sterling Canada, Inc. | Electrochemical production of acid chlorate solutions |
-
1992
- 1992-08-21 US US07/933,108 patent/US5256261A/en not_active Expired - Lifetime
-
1993
- 1993-07-14 CA CA002100483A patent/CA2100483C/en not_active Expired - Lifetime
- 1993-07-26 SE SE9302496A patent/SE508344C2/sv not_active IP Right Cessation
- 1993-08-19 FI FI933649A patent/FI112382B/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE9302496D0 (sv) | 1993-07-26 |
| FI933649A0 (fi) | 1993-08-19 |
| US5256261A (en) | 1993-10-26 |
| SE508344C2 (sv) | 1998-09-28 |
| SE9302496L (sv) | 1994-02-22 |
| FI933649L (fi) | 1994-02-22 |
| CA2100483C (en) | 1999-12-21 |
| CA2100483A1 (en) | 1994-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD | Application lapsed | ||
| PC | Transfer of assignment of patent |
Owner name: SUPERIOR PLUS LP Free format text: SUPERIOR PLUS LP |
|
| MA | Patent expired |