JPH0531485B2 - - Google Patents
Info
- Publication number
- JPH0531485B2 JPH0531485B2 JP63225527A JP22552788A JPH0531485B2 JP H0531485 B2 JPH0531485 B2 JP H0531485B2 JP 63225527 A JP63225527 A JP 63225527A JP 22552788 A JP22552788 A JP 22552788A JP H0531485 B2 JPH0531485 B2 JP H0531485B2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- transition metal
- alkali metal
- oxides
- metal oxides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000001301 oxygen Substances 0.000 claims abstract description 107
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 106
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 90
- 229910000314 transition metal oxide Inorganic materials 0.000 claims abstract description 61
- 230000003197 catalytic effect Effects 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 29
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 25
- 239000000370 acceptor Substances 0.000 claims description 21
- 238000010521 absorption reaction Methods 0.000 claims description 19
- 229910001963 alkali metal nitrate Inorganic materials 0.000 claims description 15
- 150000002826 nitrites Chemical class 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 150000002978 peroxides Chemical class 0.000 claims description 10
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical class [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 claims description 8
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 5
- 229910052707 ruthenium Inorganic materials 0.000 claims description 5
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 5
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims 4
- 239000003054 catalyst Substances 0.000 abstract description 38
- 238000006243 chemical reaction Methods 0.000 abstract description 26
- 238000000926 separation method Methods 0.000 abstract description 19
- 230000002441 reversible effect Effects 0.000 abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 42
- 230000000694 effects Effects 0.000 description 35
- 150000003839 salts Chemical class 0.000 description 29
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 25
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 25
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 23
- 229910002092 carbon dioxide Inorganic materials 0.000 description 21
- 239000001569 carbon dioxide Substances 0.000 description 21
- 239000000126 substance Substances 0.000 description 14
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 229910001868 water Inorganic materials 0.000 description 12
- YBVAXJOZZAJCLA-UHFFFAOYSA-N nitric acid nitrous acid Chemical compound ON=O.O[N+]([O-])=O YBVAXJOZZAJCLA-UHFFFAOYSA-N 0.000 description 11
- 239000004317 sodium nitrate Substances 0.000 description 11
- 235000010344 sodium nitrate Nutrition 0.000 description 11
- 229910052783 alkali metal Inorganic materials 0.000 description 10
- -1 alkali metal nitrate-nitrous oxide Chemical class 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 9
- 229910002651 NO3 Inorganic materials 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate group Chemical group [N+](=O)([O-])[O-] NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 6
- 150000002823 nitrates Chemical class 0.000 description 5
- 239000012266 salt solution Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 4
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- CDACQXAYBLJQAD-UHFFFAOYSA-M [O-]N=O.[O-][N+]([O-])=O.[OH4+2] Chemical compound [O-]N=O.[O-][N+]([O-])=O.[OH4+2] CDACQXAYBLJQAD-UHFFFAOYSA-M 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000012286 potassium permanganate Substances 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229940123973 Oxygen scavenger Drugs 0.000 description 2
- SQGFXLOLZKPOIC-UHFFFAOYSA-N [Ru]=O.[Na] Chemical compound [Ru]=O.[Na] SQGFXLOLZKPOIC-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002926 oxygen Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-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
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- MOFRCYNGRZADTC-UHFFFAOYSA-N [O-2].[Cr+3].[Sr+2] Chemical compound [O-2].[Cr+3].[Sr+2] MOFRCYNGRZADTC-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000004973 alkali metal peroxides Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- BNBLBRISEAQIHU-UHFFFAOYSA-N disodium dioxido(dioxo)manganese Chemical compound [Na+].[Na+].[O-][Mn]([O-])(=O)=O BNBLBRISEAQIHU-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229910003447 praseodymium oxide Inorganic materials 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 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
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0233—Chemical processing only
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Gas Separation By Absorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US94637 | 1987-09-08 | ||
| US07/094,637 US4800070A (en) | 1987-09-08 | 1987-09-08 | Catalysts for absorptive air separation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01111701A JPH01111701A (ja) | 1989-04-28 |
| JPH0531485B2 true JPH0531485B2 (ja) | 1993-05-12 |
Family
ID=22246293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63225527A Granted JPH01111701A (ja) | 1987-09-08 | 1988-09-08 | é žçŽ å«æã¬ã¹ããé žçŽ ãåé¢ããæ¹æ³ |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4800070A (ja) |
| EP (1) | EP0306840B1 (ja) |
| JP (1) | JPH01111701A (ja) |
| AT (1) | ATE74109T1 (ja) |
| CA (1) | CA1300850C (ja) |
| DE (1) | DE3869524D1 (ja) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1337722C (en) * | 1989-04-18 | 1995-12-12 | Madan Mohan Bhasin | Alkylene oxide catalysts having enhanced activity and/or stability |
| US4988488A (en) * | 1989-10-19 | 1991-01-29 | Air Products And Chemicals, Inc. | Iron aluminides and nickel aluminides as materials for chemical air separation |
| US4944934A (en) * | 1990-01-03 | 1990-07-31 | Air Products And Chemicals, Inc. | High temperature oxygen recovery with reversible chemical reaction |
| US5254216A (en) * | 1991-06-21 | 1993-10-19 | Texas Instruments Incorporated | Oxygen scavenging in a plasma reactor |
| US5556825A (en) * | 1995-01-06 | 1996-09-17 | Ford Motor Company | Automotive catalysts with improved oxygen storage and metal dispersion |
| AT412842B (de) * | 2003-07-24 | 2005-08-25 | Gheczy Rudolf Von | Verfahren zum betrieb einer verbrennungsanlage |
| US20130251622A1 (en) * | 2011-12-19 | 2013-09-26 | Phillips 66 Company | Enhanced oxygen generation from molten salt |
| DE102013209658A1 (de) | 2013-05-24 | 2014-05-22 | Deutsches Zentrum fÃŒr Luft- und Raumfahrt e.V. | Thermochemische Gewinnung von Sauerstoff aus Luft mit Hilfe von konzentrierter Solarstrahlung |
| EP3323779B1 (en) | 2016-11-18 | 2020-06-03 | Diehl Aviation Gilching GmbH | Method for generating oxygen using ionic liquids for decomposing peroxides |
| EP3323470B1 (en) | 2016-11-18 | 2022-06-29 | Diehl Aviation Gilching GmbH | Oxygen generator using ionic liquids |
| EP3323783B1 (en) * | 2016-11-18 | 2019-07-17 | Diehl Aviation Gilching GmbH | Use of ionic liquids in compositions for generating oxygen |
| EP3323471B1 (en) | 2016-11-18 | 2020-05-13 | Diehl Aviation Gilching GmbH | Device for generating oxygen |
| EP3323781B1 (en) | 2016-11-18 | 2019-08-14 | Diehl Aviation Gilching GmbH | Method for generating oxygen from compositions comprising ionic liquids |
| EP3323780B1 (en) | 2016-11-18 | 2020-05-20 | Diehl Aviation Gilching GmbH | Compositions comprising ionic liquids and peroxides |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US70705A (en) * | 1867-11-12 | Improved mode of producing oxygen gas | ||
| US2004243A (en) * | 1928-01-17 | 1935-06-11 | Ig Farbenindustrie Ag | Method of and means for operating breathing apparatus |
| GB628572A (en) * | 1946-08-23 | 1949-08-31 | Standard Oil Dev Co | Improved process for the extraction of oxygen from air |
| US4132766A (en) * | 1977-05-24 | 1979-01-02 | Erickson Donald C | Separation of oxygen from gaseous mixtures with molten alkali metal salts |
| US4340578A (en) * | 1977-05-24 | 1982-07-20 | Erickson Donald C | Oxygen production by molten alkali metal salts |
| US4287170A (en) * | 1980-03-06 | 1981-09-01 | Erickson Donald C | Nitrogen and oxygen via chemical air separation |
| US4529577A (en) * | 1984-07-11 | 1985-07-16 | Air Products And Chemicals, Inc. | Oxygen/nitrogen production with molten alkali salts |
| US4565685A (en) * | 1984-09-14 | 1986-01-21 | Air Products And Chemicals, Inc. | Air separation with temperature and pressure swing |
-
1987
- 1987-09-08 US US07/094,637 patent/US4800070A/en not_active Expired - Fee Related
-
1988
- 1988-09-01 DE DE8888114294T patent/DE3869524D1/de not_active Expired - Lifetime
- 1988-09-01 AT AT88114294T patent/ATE74109T1/de not_active IP Right Cessation
- 1988-09-01 EP EP88114294A patent/EP0306840B1/en not_active Expired - Lifetime
- 1988-09-02 CA CA000576459A patent/CA1300850C/en not_active Expired - Lifetime
- 1988-09-08 JP JP63225527A patent/JPH01111701A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| EP0306840A2 (en) | 1989-03-15 |
| EP0306840A3 (en) | 1989-08-23 |
| JPH01111701A (ja) | 1989-04-28 |
| US4800070A (en) | 1989-01-24 |
| DE3869524D1 (de) | 1992-04-30 |
| CA1300850C (en) | 1992-05-19 |
| EP0306840B1 (en) | 1992-03-25 |
| ATE74109T1 (de) | 1992-04-15 |
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