NO310284B1 - Fremgangsmåte ved fremstilling av kloridoksyd - Google Patents
Fremgangsmåte ved fremstilling av kloridoksyd Download PDFInfo
- Publication number
- NO310284B1 NO310284B1 NO19940640A NO940640A NO310284B1 NO 310284 B1 NO310284 B1 NO 310284B1 NO 19940640 A NO19940640 A NO 19940640A NO 940640 A NO940640 A NO 940640A NO 310284 B1 NO310284 B1 NO 310284B1
- Authority
- NO
- Norway
- Prior art keywords
- reaction medium
- chlorine dioxide
- reactor
- chlorate
- sulfate
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title description 5
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000012429 reaction media Substances 0.000 claims abstract description 56
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 54
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 54
- XTEGARKTQYYJKE-UHFFFAOYSA-M chlorate Inorganic materials [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims abstract description 29
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 27
- -1 alkali metal chlorate Chemical class 0.000 claims abstract description 21
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 11
- 238000002425 crystallisation Methods 0.000 claims abstract description 8
- 229910001413 alkali metal ion Inorganic materials 0.000 claims abstract description 6
- 230000002378 acidificating effect Effects 0.000 claims abstract description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 27
- 239000002253 acid Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 19
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 18
- 239000003638 chemical reducing agent Substances 0.000 claims description 16
- 239000000460 chlorine Substances 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 9
- 230000008025 crystallization Effects 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 3
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000012528 membrane Substances 0.000 description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 229910021653 sulphate ion Inorganic materials 0.000 description 12
- 239000006227 byproduct Substances 0.000 description 10
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 7
- 238000005341 cation exchange Methods 0.000 description 7
- 229910001882 dioxygen Inorganic materials 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 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 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000020477 pH reduction Effects 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 239000003011 anion exchange membrane Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910052936 alkali metal sulfate Inorganic materials 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 1
- 239000012431 aqueous reaction media Substances 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 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
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003295 industrial effluent Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/02—Oxides of chlorine
- C01B11/022—Chlorine dioxide (ClO2)
- C01B11/023—Preparation from chlorites or chlorates
- C01B11/026—Preparation from chlorites or chlorates from chlorate ions in the presence of a peroxidic compound, e.g. hydrogen peroxide, ozone, peroxysulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Compounds Of Unknown Constitution (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08023561 US5380517B1 (en) | 1993-02-26 | 1993-02-26 | Process for continuously producing chlorine dioxide |
| SE9302279A SE9302279L (sv) | 1993-02-26 | 1993-07-02 | Sätt att tillverka klordioxid |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO940640D0 NO940640D0 (no) | 1994-02-24 |
| NO940640L NO940640L (no) | 1994-08-29 |
| NO310284B1 true NO310284B1 (no) | 2001-06-18 |
Family
ID=26661785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19940640A NO310284B1 (no) | 1993-02-26 | 1994-02-24 | Fremgangsmåte ved fremstilling av kloridoksyd |
Country Status (16)
| Country | Link |
|---|---|
| US (2) | US5487881A (fr) |
| EP (1) | EP0612685B1 (fr) |
| JP (1) | JP2520085B2 (fr) |
| CN (1) | CN1042720C (fr) |
| AT (1) | ATE146160T1 (fr) |
| AU (1) | AU652320B1 (fr) |
| BR (1) | BR9400641A (fr) |
| CA (1) | CA2108629C (fr) |
| CZ (1) | CZ284465B6 (fr) |
| DE (1) | DE69401076D1 (fr) |
| ES (1) | ES2096403T3 (fr) |
| FI (1) | FI110772B (fr) |
| NO (1) | NO310284B1 (fr) |
| NZ (1) | NZ248989A (fr) |
| PL (1) | PL180391B1 (fr) |
| RU (1) | RU2084557C1 (fr) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19723889A1 (de) | 1997-06-06 | 1998-12-10 | Consortium Elektrochem Ind | System zur elektrochemischen Delignifizierung ligninhaltiger Materialien sowie Verfahren zu seiner Anwendung |
| CA2242685C (fr) * | 1997-08-01 | 2004-09-28 | Sterling Canada, Inc. | Procede de production de dioxyde de chlore a l'aide d'acide nitrique |
| US6322768B1 (en) | 1998-09-29 | 2001-11-27 | International Paper Company | Recovery of chlorine dioxide from gas streams |
| US6287533B1 (en) | 1999-09-20 | 2001-09-11 | Mohammed N. I. Khan | Production of chlorine dioxide by chemical reduction of ammonium chlorate in aqueous acidic solution |
| DE60004090T2 (de) * | 1999-11-26 | 2004-04-22 | Akzo Nobel N.V. | Verfahren zur herstellung einer alkalischen wasserstoffperoxidlösung und chlordioxid |
| US6235167B1 (en) * | 1999-12-10 | 2001-05-22 | John E. Stauffer | Electrolyzer for the production of sodium chlorate |
| US7452511B2 (en) * | 2002-05-03 | 2008-11-18 | Schmitz Wilfried J | Reactor for production of chlorine dioxide, methods of production of same, and related systems and methods of using the reactor |
| AU2003245268A1 (en) * | 2003-05-23 | 2005-09-29 | David Francis | Reactor and method of chlorine dioxide production |
| US20060120946A1 (en) * | 2004-12-06 | 2006-06-08 | Akzo Nobel N.V. | Chemical process and apparatus |
| PT1831102E (pt) * | 2004-12-06 | 2011-07-20 | Akzo Nobel Nv | Processo químico e dispositivo |
| US8268269B2 (en) | 2006-01-24 | 2012-09-18 | Clearvalue Technologies, Inc. | Manufacture of water chemistries |
| HUP0600735A2 (en) * | 2006-09-21 | 2009-04-28 | Zoltan Dr Noszticzius | Permeation method and apparatus for preparing fluids containing high-purity chlorine dioxide |
| ES2366069T3 (es) * | 2007-01-12 | 2011-10-17 | Akzo Nobel N.V. | Procedimiento para la producción de dióxido de cloro. |
| KR100817730B1 (ko) * | 2007-04-26 | 2008-03-31 | 주식회사 대한이엔비 | 이산화염소 발생장치 및 제조방법 |
| TWI447065B (zh) * | 2007-07-13 | 2014-08-01 | Akzo Nobel Nv | 二氧化氯之製造方法 |
| WO2009077213A1 (fr) | 2007-12-19 | 2009-06-25 | Infracor Gmbh | Procédé de traitement d'eau avec du dioxyde de chlore |
| SA109300539B1 (ar) * | 2008-10-06 | 2012-04-07 | اكزو نوبل أن . في | عملية لأنتاج ثانى أكسيد الكلور |
| DE102008055016A1 (de) | 2008-12-19 | 2010-07-01 | Infracor Gmbh | Verfahren zur Behandlung von Wasser und wässrigen Systemen in Rohrleitungen mit Chlordioxid |
| EP2443059B1 (fr) | 2009-06-16 | 2015-08-26 | Akzo Nobel N.V. | Procédé de production de dioxyde de chlore |
| UY32927A (es) | 2009-10-12 | 2011-03-31 | Akzo Nobel Chemicals Int Bv | Proceso para la producción de dióxido de cloro |
| PT2526047T (pt) | 2010-01-18 | 2017-11-17 | Akzo Nobel Chemicals Int Bv | Processo para a produção de dióxido de cloro |
| ES2532744T3 (es) * | 2010-07-08 | 2015-03-31 | Akzo Nobel Chemicals International B.V. | Proceso para la producción de dióxido de cloro |
| WO2012129510A1 (fr) * | 2011-03-24 | 2012-09-27 | New Sky Energy, Inc. | Traitement d'électrolyse à base de sulfate avec commande de charge flexible et utilisation pour capturer du dioxyde de carbone |
| US20150014153A1 (en) * | 2012-03-29 | 2015-01-15 | Fortius Holdings Pty Ltd. | Apparatus for Chlorine Dioxide Generation |
| US9567216B2 (en) | 2014-02-12 | 2017-02-14 | Chemtreat, Inc. | Reducing agents for producing chlorine dioxide |
| EP3845488A4 (fr) * | 2018-08-30 | 2021-09-01 | Guangxi Bossco Environmental Protection Tcchnology | Méthode de préparation de dioxyde de chlore de haute pureté à l'aide d'une combinaison d'alcool méthylique et de peroxyde d'hydrogène en tant qu'agent réducteur |
Family Cites Families (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2332181A (en) * | 1941-07-15 | 1943-10-19 | Mathieson Alkali Works Inc | Manufacture of chlorine dioxide |
| FR997885A (fr) * | 1945-08-20 | 1952-01-11 | Perfectionnements aux appareils pour le traitement en continu de récipients et notamment de ceux contenant des produits alimentaires | |
| US2484402A (en) * | 1946-01-04 | 1949-10-11 | Brown Co | Process for producing chlorine dioxide |
| US2811420A (en) * | 1954-11-17 | 1957-10-29 | Hooker Electrochemical Co | Chlorine dioxide generation |
| US2833624A (en) * | 1956-10-02 | 1958-05-06 | Du Pont | Production of chlorine dioxide |
| GB1054456A (fr) * | 1963-10-10 | |||
| US3341288A (en) * | 1963-12-27 | 1967-09-12 | Hooker Chemical Corp | Production of chlorine dioxide |
| US3563702A (en) * | 1968-03-05 | 1971-02-16 | Hooker Chemical Corp | Production of chlorine dioxide |
| US3760065A (en) * | 1970-05-29 | 1973-09-18 | Erco Ind Ltd | Production of chlorine dioxide |
| US3810969A (en) * | 1971-06-22 | 1974-05-14 | Hooker Chemical Corp | Process for the production of chlorine dioxide |
| US3789108A (en) * | 1973-02-08 | 1974-01-29 | Erco Ind Ltd | Production of chlorine dioxide |
| CA1080433A (fr) * | 1976-03-19 | 1980-07-01 | Erco Industries Limited | Production elevee de dioxyde de chlore en milieu faiblement acide |
| US4129484A (en) * | 1976-05-11 | 1978-12-12 | Kemanord Ab | Process for regeneration of spent reaction solutions |
| US4325934A (en) * | 1980-09-22 | 1982-04-20 | Erco Industries Limited | Production of chlorine dioxide with conversion of by-product solid phase sodium acid sulphate to its neutral form |
| JPS5953205B2 (ja) * | 1981-05-19 | 1984-12-24 | 日本カ−リツト株式会社 | 高純度の二酸化塩素を製造する方法 |
| US4465658A (en) * | 1983-06-13 | 1984-08-14 | Erco Industries Limited | Chlorine dioxide process |
| US4683039A (en) * | 1985-12-24 | 1987-07-28 | Tenneco Canada Inc. (Erco Division) | Membrane pervaporation process |
| JPS638203A (ja) * | 1986-06-26 | 1988-01-14 | Japan Carlit Co Ltd:The | 高純度の二酸化塩素を製造する方法 |
| US4798715A (en) * | 1988-02-05 | 1989-01-17 | Eltech Systems Corporation | Producing chlorine dioxide from chlorate salt |
| CA1324976C (fr) * | 1988-07-26 | 1993-12-07 | Zbigniew Twardowski | Procede combine pour la production de dioxyde de chlore et d'hydroxyde de sodium |
| US4806215A (en) * | 1988-07-27 | 1989-02-21 | Tenneco Canada Inc. | Combined process for production of chlorine dioxide and sodium hydroxide |
| US4915927A (en) * | 1988-10-21 | 1990-04-10 | Tenneco Canada Inc. | Production of chloric acid |
| WO1990010733A1 (fr) * | 1989-03-15 | 1990-09-20 | Pulp And Paper Research Institute Of Canada | Procede de production d'acide chlorique et de dioxyde de chlore |
| JPH0621005B2 (ja) * | 1989-09-29 | 1994-03-23 | ダイソー株式会社 | 二酸化塩素の製造法 |
| US5106465A (en) * | 1989-12-20 | 1992-04-21 | Olin Corporation | Electrochemical process for producing chlorine dioxide solutions from chlorites |
| US5084148A (en) * | 1990-02-06 | 1992-01-28 | Olin Corporation | Electrochemical process for producing chloric acid - alkali metal chlorate mixtures |
| US5242554A (en) * | 1990-02-06 | 1993-09-07 | Olin Corporation | Electrolytic production of chloric acid and sodium chlorate mixtures for the generation of chlorine dioxide |
| US5108560A (en) * | 1990-03-30 | 1992-04-28 | Olin Corporation | Electrochemical process for production of chloric acid from hypochlorous acid |
| US5198080A (en) * | 1990-06-08 | 1993-03-30 | Tenneco Canada Inc. | Electrochemical processing of aqueous solutions |
| US5122240A (en) * | 1990-06-08 | 1992-06-16 | Tenneco Canada Inc. | Electrochemical processing of aqueous solutions |
| CA2023733C (fr) * | 1990-08-21 | 1998-04-14 | Marek Lipsztajn | Production de dioxyde de chlore a partir de l'acide chlorique |
| SE500042C2 (sv) * | 1990-08-31 | 1994-03-28 | Eka Nobel Ab | Förfarande för kontinuerlig framställning av klordioxid |
| SE500043C2 (sv) * | 1990-08-31 | 1994-03-28 | Eka Nobel Ab | Förfarande för kontinuerlig framställning av klordioxid |
| US5116595A (en) * | 1991-04-22 | 1992-05-26 | Tenneco Canada Inc. | Metathesis of acidic by-product of chlorine dioxide generating process |
| CA2116427C (fr) * | 1991-09-12 | 1998-09-29 | Rolf C.A. Brannland | Regulation de l'acidite dans la fabrication du dioxyde de chlore |
| GB9119613D0 (en) * | 1991-09-13 | 1991-10-23 | Ici Plc | Electrochemical process |
| SE511003C2 (sv) * | 1992-03-16 | 1999-07-19 | Eka Chemicals Ab | Förfarande och apparat för framställning av svavelsyra och alkalimetallhydroxid |
| US5273733A (en) * | 1992-04-14 | 1993-12-28 | Eka Nobel Inc. | Process for the production of chlorine dioxide |
| US5486344A (en) * | 1992-06-09 | 1996-01-23 | Eka Nobel Inc. | Method of producing chlorine dioxide |
-
1993
- 1993-09-15 US US08/120,814 patent/US5487881A/en not_active Expired - Lifetime
- 1993-10-18 CA CA002108629A patent/CA2108629C/fr not_active Expired - Fee Related
- 1993-10-19 NZ NZ248989A patent/NZ248989A/xx not_active IP Right Cessation
-
1994
- 1994-02-02 AT AT94200267T patent/ATE146160T1/de active
- 1994-02-02 DE DE69401076T patent/DE69401076D1/de not_active Expired - Lifetime
- 1994-02-02 ES ES94200267T patent/ES2096403T3/es not_active Expired - Lifetime
- 1994-02-02 EP EP94200267A patent/EP0612685B1/fr not_active Expired - Lifetime
- 1994-02-21 AU AU55258/94A patent/AU652320B1/en not_active Ceased
- 1994-02-22 CZ CZ94396A patent/CZ284465B6/cs not_active IP Right Cessation
- 1994-02-22 BR BR9400641A patent/BR9400641A/pt not_active IP Right Cessation
- 1994-02-23 PL PL94302340A patent/PL180391B1/pl not_active IP Right Cessation
- 1994-02-23 FI FI940854A patent/FI110772B/fi not_active IP Right Cessation
- 1994-02-24 NO NO19940640A patent/NO310284B1/no not_active IP Right Cessation
- 1994-02-24 JP JP6049960A patent/JP2520085B2/ja not_active Expired - Fee Related
- 1994-02-25 RU RU9494006022A patent/RU2084557C1/ru not_active IP Right Cessation
- 1994-02-26 CN CN94101940A patent/CN1042720C/zh not_active Expired - Fee Related
-
1995
- 1995-06-07 US US08/487,078 patent/US5565182A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FI940854A0 (fi) | 1994-02-23 |
| CZ39694A3 (en) | 1994-09-14 |
| BR9400641A (pt) | 1994-09-27 |
| CA2108629A1 (fr) | 1994-08-27 |
| PL180391B1 (pl) | 2001-01-31 |
| JP2520085B2 (ja) | 1996-07-31 |
| FI940854A (fi) | 1994-08-27 |
| NO940640D0 (no) | 1994-02-24 |
| CA2108629C (fr) | 1999-01-12 |
| AU652320B1 (en) | 1994-08-18 |
| PL302340A1 (en) | 1994-09-05 |
| EP0612685B1 (fr) | 1996-12-11 |
| NO940640L (no) | 1994-08-29 |
| FI110772B (fi) | 2003-03-31 |
| RU2084557C1 (ru) | 1997-07-20 |
| JPH0748103A (ja) | 1995-02-21 |
| CN1042720C (zh) | 1999-03-31 |
| ATE146160T1 (de) | 1996-12-15 |
| CN1094458A (zh) | 1994-11-02 |
| CZ284465B6 (cs) | 1998-12-16 |
| US5487881A (en) | 1996-01-30 |
| EP0612685A2 (fr) | 1994-08-31 |
| NZ248989A (en) | 1995-01-27 |
| DE69401076D1 (de) | 1997-01-23 |
| ES2096403T3 (es) | 1997-03-01 |
| US5565182A (en) | 1996-10-15 |
| EP0612685A3 (en) | 1994-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO310284B1 (no) | Fremgangsmåte ved fremstilling av kloridoksyd | |
| EP0544686B1 (fr) | Production de dioxyde de chlore a partir d'acide chlorique | |
| US4456510A (en) | Process for manufacturing chlorine dioxide | |
| US5198080A (en) | Electrochemical processing of aqueous solutions | |
| CA2156125C (fr) | Methode de preparation de dioxyde de chlore | |
| US5122240A (en) | Electrochemical processing of aqueous solutions | |
| SE500107C2 (sv) | Förfarande för framställning av klordioxid | |
| SE501204C2 (sv) | Framställning av polysulfid genom elektrolys av vitlut som innehåller sulfid | |
| EP0846194A1 (fr) | Procede permettant une production electrochimique combinee de bisulfate de peroxyde de sodium et de soude caustique | |
| US5478446A (en) | Electrochemical process | |
| CA2194609C (fr) | Procede pour la production de dioxyde chlore | |
| RU2108413C1 (ru) | Способ получения водного подкисленного раствора, содержащего хлоратные ионы, способ электрохимической обработки водного раствора смеси солей щелочных металлов, способ получения двуокиси хлора | |
| CA2156689C (fr) | Procede pour l'obtention de dioxyde de chlore | |
| US5284553A (en) | Chlorine dioxide generation from chloric acid | |
| CA2166077C (fr) | Procede electrochimique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |