NO307524B1 - FremgangsmÕte for fremstilling av en alkalisk hydrogenperoksydoppløsning - Google Patents
FremgangsmÕte for fremstilling av en alkalisk hydrogenperoksydoppløsning Download PDFInfo
- Publication number
- NO307524B1 NO307524B1 NO923634A NO923634A NO307524B1 NO 307524 B1 NO307524 B1 NO 307524B1 NO 923634 A NO923634 A NO 923634A NO 923634 A NO923634 A NO 923634A NO 307524 B1 NO307524 B1 NO 307524B1
- Authority
- NO
- Norway
- Prior art keywords
- electrolyte
- cell
- alkali metal
- cell separator
- microporous
- Prior art date
Links
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title abstract description 12
- 239000003792 electrolyte Substances 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000003381 stabilizer Substances 0.000 claims abstract description 31
- 150000001875 compounds Chemical class 0.000 claims abstract description 11
- -1 polypropylene Polymers 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 16
- 239000011148 porous material Substances 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 238000005868 electrolysis reaction Methods 0.000 claims description 14
- 150000002500 ions Chemical class 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 229920006254 polymer film Polymers 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 13
- 229920001155 polypropylene Polymers 0.000 claims description 13
- 229910052783 alkali metal Inorganic materials 0.000 claims description 11
- 239000012670 alkaline solution Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 239000000047 product Substances 0.000 claims description 9
- 239000002738 chelating agent Substances 0.000 claims description 8
- 239000004753 textile Substances 0.000 claims description 8
- 229920000098 polyolefin Polymers 0.000 claims description 7
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 5
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 5
- 150000001340 alkali metals Chemical class 0.000 claims description 5
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 150000002736 metal compounds Chemical class 0.000 claims description 4
- 150000003623 transition metal compounds Chemical class 0.000 claims description 4
- 239000005725 8-Hydroxyquinoline Substances 0.000 claims description 3
- 229910000318 alkali metal phosphate Inorganic materials 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 229960003540 oxyquinoline Drugs 0.000 claims description 3
- 229960003330 pentetic acid Drugs 0.000 claims description 3
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims 1
- 229910021645 metal ion Inorganic materials 0.000 abstract description 3
- 230000000536 complexating effect Effects 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 75
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 22
- 239000000243 solution Substances 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 230000009467 reduction Effects 0.000 description 14
- 239000008151 electrolyte solution Substances 0.000 description 13
- 239000000356 contaminant Substances 0.000 description 12
- 150000001339 alkali metal compounds Chemical class 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 150000002978 peroxides Chemical class 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical class NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000008139 complexing agent Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000013522 chelant Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 235000013905 glycine and its sodium salt Nutrition 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 210000000170 cell membrane Anatomy 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 2
- NBZBKCUXIYYUSX-UHFFFAOYSA-N iminodiacetic acid Chemical compound OC(=O)CNCC(O)=O NBZBKCUXIYYUSX-UHFFFAOYSA-N 0.000 description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 description 2
- 150000004692 metal hydroxides Chemical class 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- 125000002081 peroxide group Chemical group 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 2
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- QOPUBSBYMCLLKW-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]-4-hydroxybutanoic acid Chemical compound OCCC(C(O)=O)N(CC(O)=O)CCN(CC(O)=O)CC(O)=O QOPUBSBYMCLLKW-UHFFFAOYSA-N 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- 229920013683 Celanese Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 108010008488 Glycylglycine Proteins 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000003513 alkali 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
- 125000005157 alkyl carboxy group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000004697 chelate complex Chemical class 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000000080 wetting agent 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
- C25B1/28—Per-compounds
- C25B1/30—Peroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Battery Mounting, Suspending (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Fuel Cell (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Hybrid Cells (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/763,096 US5316629A (en) | 1991-09-20 | 1991-09-20 | Process for maintaining electrolyte flow rate through a microporous diaphragm during electrochemical production of hydrogen peroxide |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO923634D0 NO923634D0 (no) | 1992-09-18 |
| NO923634L NO923634L (no) | 1993-03-22 |
| NO307524B1 true NO307524B1 (no) | 2000-04-17 |
Family
ID=25066869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO923634A NO307524B1 (no) | 1991-09-20 | 1992-09-18 | FremgangsmÕte for fremstilling av en alkalisk hydrogenperoksydoppløsning |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5316629A (de) |
| EP (1) | EP0539014B1 (de) |
| AT (1) | ATE161900T1 (de) |
| AU (1) | AU647310B2 (de) |
| BR (1) | BR9203662A (de) |
| CA (1) | CA2076828C (de) |
| DE (1) | DE69223910T2 (de) |
| FI (1) | FI114644B (de) |
| NO (1) | NO307524B1 (de) |
| NZ (1) | NZ244376A (de) |
| PL (1) | PL170129B1 (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4317349C1 (de) * | 1993-05-25 | 1994-10-13 | Metallgesellschaft Ag | Verfahren zur Herstellung von Alkaliperoxid/Percarbonat-Lösungen |
| US5565073A (en) * | 1994-07-15 | 1996-10-15 | Fraser; Mark E. | Electrochemical peroxide generator |
| JP2003506120A (ja) | 1999-08-05 | 2003-02-18 | ステリス インコーポレイテッド | 過酢酸の電気分解による合成 |
| WO2005038091A2 (en) * | 2003-10-11 | 2005-04-28 | Niksa Marilyn J | Use of electrochemical cell to produce hydrogen peroxide and dissolved oxygen |
| WO2005082024A2 (en) * | 2004-02-24 | 2005-09-09 | Ini Power Systems, Inc. | Fuel cell apparatus and method of fabrication |
| EP1753895A2 (de) * | 2004-06-08 | 2007-02-21 | Akzo Nobel N.V. | Verfahren zur verhinderung der degeneration einer membran mit komplexbildnern |
| US20060088744A1 (en) * | 2004-09-15 | 2006-04-27 | Markoski Larry J | Electrochemical cells |
| US7901817B2 (en) * | 2006-02-14 | 2011-03-08 | Ini Power Systems, Inc. | System for flexible in situ control of water in fuel cells |
| US8158300B2 (en) * | 2006-09-19 | 2012-04-17 | Ini Power Systems, Inc. | Permselective composite membrane for electrochemical cells |
| US7754064B2 (en) * | 2006-09-29 | 2010-07-13 | Eltron Research & Development | Methods and apparatus for the on-site production of hydrogen peroxide |
| US8551667B2 (en) * | 2007-04-17 | 2013-10-08 | Ini Power Systems, Inc. | Hydrogel barrier for fuel cells |
| US20090035644A1 (en) * | 2007-07-31 | 2009-02-05 | Markoski Larry J | Microfluidic Fuel Cell Electrode System |
| US8163429B2 (en) * | 2009-02-05 | 2012-04-24 | Ini Power Systems, Inc. | High efficiency fuel cell system |
| US8783304B2 (en) | 2010-12-03 | 2014-07-22 | Ini Power Systems, Inc. | Liquid containers and apparatus for use with power producing devices |
| US9065095B2 (en) | 2011-01-05 | 2015-06-23 | Ini Power Systems, Inc. | Method and apparatus for enhancing power density of direct liquid fuel cells |
| US8562810B2 (en) | 2011-07-26 | 2013-10-22 | Ecolab Usa Inc. | On site generation of alkalinity boost for ware washing applications |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431494A (en) * | 1982-08-03 | 1984-02-14 | The Dow Chemical Company | Method for electrolytic production of alkaline peroxide solutions |
| AU551475B2 (en) * | 1982-02-18 | 1986-05-01 | Dow Chemical Company, The | Method of operating a liquid-gas electrochemical cell |
| CA1214747A (en) * | 1984-09-04 | 1986-12-02 | Colin W. Oloman | Method for electrochemical generation of alkaline peroxide solutions |
| US4921587A (en) * | 1985-09-19 | 1990-05-01 | H-D Tech, Inc. | Porous diaphragm for electrochemical cell |
| US4643886A (en) * | 1985-12-06 | 1987-02-17 | The Dow Chemical Company | Automatic pH control in a process for removal of hydrogen sulfide from a gas |
| US4927509A (en) * | 1986-06-04 | 1990-05-22 | H-D Tech Inc. | Bipolar electrolyzer |
| US4693794A (en) * | 1986-11-20 | 1987-09-15 | Fmc Corporation | Process for manufacturing hydrogen peroxide electrolytically |
| US4872957A (en) * | 1988-07-20 | 1989-10-10 | H-D Tech Inc. | Electrochemical cell having dual purpose electrode |
| US5074975A (en) * | 1990-08-08 | 1991-12-24 | The University Of British Columbia | Electrochemical cogeneration of alkali metal halate and alkaline peroxide solutions |
-
1991
- 1991-09-20 US US07/763,096 patent/US5316629A/en not_active Expired - Lifetime
-
1992
- 1992-08-25 CA CA002076828A patent/CA2076828C/en not_active Expired - Lifetime
- 1992-09-14 AU AU23562/92A patent/AU647310B2/en not_active Expired
- 1992-09-17 EP EP92308446A patent/EP0539014B1/de not_active Expired - Lifetime
- 1992-09-17 DE DE69223910T patent/DE69223910T2/de not_active Expired - Lifetime
- 1992-09-17 NZ NZ244376A patent/NZ244376A/en not_active IP Right Cessation
- 1992-09-17 AT AT92308446T patent/ATE161900T1/de not_active IP Right Cessation
- 1992-09-18 NO NO923634A patent/NO307524B1/no not_active IP Right Cessation
- 1992-09-18 PL PL92295977A patent/PL170129B1/pl unknown
- 1992-09-18 BR BR929203662A patent/BR9203662A/pt not_active IP Right Cessation
- 1992-09-18 FI FI924191A patent/FI114644B/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| PL170129B1 (pl) | 1996-10-31 |
| DE69223910T2 (de) | 1998-04-30 |
| EP0539014B1 (de) | 1998-01-07 |
| FI114644B (fi) | 2004-11-30 |
| NO923634D0 (no) | 1992-09-18 |
| NZ244376A (en) | 1994-12-22 |
| ATE161900T1 (de) | 1998-01-15 |
| CA2076828C (en) | 1998-12-22 |
| BR9203662A (pt) | 1993-04-20 |
| NO923634L (no) | 1993-03-22 |
| FI924191A0 (fi) | 1992-09-18 |
| DE69223910D1 (de) | 1998-02-12 |
| US5316629A (en) | 1994-05-31 |
| AU2356292A (en) | 1993-03-25 |
| AU647310B2 (en) | 1994-03-17 |
| CA2076828A1 (en) | 1993-03-21 |
| FI924191A (fi) | 1993-03-21 |
| PL295977A1 (en) | 1993-05-04 |
| EP0539014A1 (de) | 1993-04-28 |
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