JPH0735248B2 - 残留ガスに含まれる硫黄化合物を除去する方法 - Google Patents
残留ガスに含まれる硫黄化合物を除去する方法Info
- Publication number
- JPH0735248B2 JPH0735248B2 JP61505660A JP50566086A JPH0735248B2 JP H0735248 B2 JPH0735248 B2 JP H0735248B2 JP 61505660 A JP61505660 A JP 61505660A JP 50566086 A JP50566086 A JP 50566086A JP H0735248 B2 JPH0735248 B2 JP H0735248B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- sulfur
- catalyst
- temperature
- oxidation
- 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
- 238000000034 method Methods 0.000 title claims description 49
- 150000003464 sulfur compounds Chemical class 0.000 title claims description 21
- 239000007789 gas Substances 0.000 claims description 199
- 239000003054 catalyst Substances 0.000 claims description 104
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 76
- 239000011593 sulfur Substances 0.000 claims description 70
- 229910052717 sulfur Inorganic materials 0.000 claims description 70
- 238000007254 oxidation reaction Methods 0.000 claims description 62
- 230000003647 oxidation Effects 0.000 claims description 60
- 230000002000 scavenging effect Effects 0.000 claims description 46
- 230000008929 regeneration Effects 0.000 claims description 32
- 238000011069 regeneration method Methods 0.000 claims description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 28
- 239000001301 oxygen Substances 0.000 claims description 28
- 229910052760 oxygen Inorganic materials 0.000 claims description 28
- 238000011282 treatment Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 230000007062 hydrolysis Effects 0.000 claims description 20
- 238000006460 hydrolysis reaction Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 238000005984 hydrogenation reaction Methods 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- -1 alkaline earth metal sulphate Chemical class 0.000 claims description 3
- 229910052793 cadmium Inorganic materials 0.000 claims description 3
- 235000011132 calcium sulphate Nutrition 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 229910000510 noble metal Inorganic materials 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 229910001570 bauxite Inorganic materials 0.000 claims description 2
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- 239000001175 calcium sulphate Substances 0.000 claims description 2
- 238000011284 combination treatment Methods 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 2
- 230000003716 rejuvenation Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims 1
- 238000003303 reheating Methods 0.000 claims 1
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
- 239000010457 zeolite Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000011651 chromium Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000358 iron sulfate Inorganic materials 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- IHZXTIBMKNSJCJ-UHFFFAOYSA-N 3-{[(4-{[4-(dimethylamino)phenyl](4-{ethyl[(3-sulfophenyl)methyl]amino}phenyl)methylidene}cyclohexa-2,5-dien-1-ylidene)(ethyl)azaniumyl]methyl}benzene-1-sulfonate Chemical compound C=1C=C(C(=C2C=CC(C=C2)=[N+](C)C)C=2C=CC(=CC=2)N(CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S(O)(=O)=O)=C1 IHZXTIBMKNSJCJ-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 150000002898 organic sulfur compounds Chemical class 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
- C01B17/046—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process without intermediate formation of sulfur dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8612—Hydrogen sulfide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
- C01B17/0456—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process the hydrogen sulfide-containing gas being a Claus process tail gas
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR85/15905 | 1985-10-25 | ||
| FR8515905A FR2589141B1 (fr) | 1985-10-25 | 1985-10-25 | Procede d'elimination des composes soufres contenus dans un gaz residuaire, notamment issu d'une usine a soufre claus, avec recuperation desdits composes sous la forme de soufre |
| PCT/FR1986/000366 WO1987002654A1 (fr) | 1985-10-25 | 1986-10-24 | Procede d'elimination des composes soufres contenus dans un gaz residuaire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63501359A JPS63501359A (ja) | 1988-05-26 |
| JPH0735248B2 true JPH0735248B2 (ja) | 1995-04-19 |
Family
ID=9324216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61505660A Expired - Lifetime JPH0735248B2 (ja) | 1985-10-25 | 1986-10-24 | 残留ガスに含まれる硫黄化合物を除去する方法 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPH0735248B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1281886C (enrdf_load_stackoverflow) |
| DE (2) | DE3690569T1 (enrdf_load_stackoverflow) |
| FR (1) | FR2589141B1 (enrdf_load_stackoverflow) |
| GB (1) | GB2192871B (enrdf_load_stackoverflow) |
| WO (1) | WO1987002654A1 (enrdf_load_stackoverflow) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2215323B (en) * | 1988-03-09 | 1991-12-18 | Exxon Research Engineering Co | Process for removing sulfur moieties from a sulfurous gas such as claus tail-gas |
| US5494650A (en) * | 1989-01-19 | 1996-02-27 | Societe Nationale Elf Aquitaine (Production) | Process for improving the sulphur yield of a complex for producing sulphur from a sour gas containing H2 S, the said complex comprising a sulphur plant and then an oxidation and hydrolysis unit followed by a purification unit |
| DE4109892C2 (de) * | 1991-03-26 | 1994-12-22 | Metallgesellschaft Ag | Verfahren zur Entfernung von Schwefelwasserstoff aus Gasen mittels Aktivkohle |
| US5494879A (en) * | 1993-02-26 | 1996-02-27 | Regents, University Of California | Catalyst for the reduction of sulfur dioxide to elemental sulfur |
| FR2727101B1 (fr) * | 1994-11-17 | 1996-12-20 | Elf Aquitaine | Procede pour oxyder directement en soufre par voie catalytique l'h2s contenu en faible concentration dans un gaz et catalyseur pour la mise en oeuvre de ce procede |
| FR2740767B1 (fr) * | 1995-11-03 | 1997-12-26 | Elf Aquitaine | Procede d'oxydation complete en soufre de l'h2s present dans un gaz et son application a la recuperation quasi totale, sous la forme de soufre, des composes soufres contenus dans un gaz residuaire d'usine a soufre |
| FR2740703B1 (fr) * | 1995-11-03 | 1997-12-05 | Elf Aquitaine | Procede d'elimination quasi totale des composes soufres h2s, so2, cos et/ou cs2 contenus dans un gaz residuaire d'usine a soufre, avec recuperation desdits composes sous la forme de soufre |
| FR2740704B1 (fr) * | 1995-11-03 | 1997-12-26 | Elf Aquitaine | Procede d'elimination quasi totale des composes soufres h2s, so2, cos et/ou cs2 contenus dans un gaz residuaire d'usine a soufre, avec recuperation desdits composes sous la forme de soufre |
| DE102009006384A1 (de) * | 2009-01-28 | 2010-08-19 | Uhde Gmbh | Verfahren zur Versorgung eines Flugstromvergasungsreaktors mit Brennstoff aus einem Vorratsbehälter |
| EP3110753B1 (en) * | 2014-02-28 | 2020-05-13 | Fluor Technologies Corporation | Configurations and methods for advanced oxygen enrichment for sulfur recovery |
| US9701537B1 (en) * | 2016-01-05 | 2017-07-11 | Saudi Arabian Oil Company | Claus process for sulfur recovery with intermediate water vapor removal by adsorption |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1211033A (en) * | 1968-01-11 | 1970-11-04 | Ontario Research Foundation | Treatment of waste gases |
| GB1307716A (en) * | 1969-05-01 | 1973-02-21 | Shell Int Research | Process for reducing the combined sulphur content of claus tail gases |
| US3702884A (en) * | 1970-05-22 | 1972-11-14 | Amoco Prod Co | Method for reducing sulfur compounds in sulfur plant effluent |
| US4035474A (en) * | 1976-03-01 | 1977-07-12 | Standard Oil Company (Indiana) | CBA for Claus tail gas cleanup |
| DE2648190C3 (de) * | 1976-10-25 | 1980-02-21 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur Herstellung von Schwefel nach dem Claus-Verfahren |
| US4430317A (en) * | 1981-03-02 | 1984-02-07 | Standard Oil Company (Indiana) | Low temperature Claus process with water removal |
| FR2511663A1 (fr) * | 1981-08-19 | 1983-02-25 | Elf Aquitaine | Procede catalytique de production de soufre a partir d'un gaz renfermant h2s |
| US4507275A (en) * | 1983-08-30 | 1985-03-26 | Standard Oil Company (Indiana) | Process for producing and recovering elemental sulfur from acid gas |
-
1985
- 1985-10-25 FR FR8515905A patent/FR2589141B1/fr not_active Expired
-
1986
- 1986-10-24 GB GB8714267A patent/GB2192871B/en not_active Expired - Lifetime
- 1986-10-24 JP JP61505660A patent/JPH0735248B2/ja not_active Expired - Lifetime
- 1986-10-24 WO PCT/FR1986/000366 patent/WO1987002654A1/fr active Application Filing
- 1986-10-24 DE DE19863690569 patent/DE3690569T1/de active Pending
- 1986-10-24 DE DE3690569A patent/DE3690569C2/de not_active Expired - Lifetime
- 1986-10-24 CA CA000521418A patent/CA1281886C/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB2192871B (en) | 1990-08-15 |
| GB2192871A (en) | 1988-01-27 |
| DE3690569C2 (de) | 1998-10-01 |
| JPS63501359A (ja) | 1988-05-26 |
| FR2589141B1 (fr) | 1987-12-11 |
| WO1987002654A1 (fr) | 1987-05-07 |
| GB8714267D0 (en) | 1987-07-22 |
| FR2589141A1 (fr) | 1987-04-30 |
| DE3690569T1 (enrdf_load_stackoverflow) | 1987-11-19 |
| CA1281886C (fr) | 1991-03-26 |
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