JPH04502280A - 使用ずみのニツケルに基づく吸収剤の処理法 - Google Patents
使用ずみのニツケルに基づく吸収剤の処理法Info
- Publication number
- JPH04502280A JPH04502280A JP2515072A JP51507290A JPH04502280A JP H04502280 A JPH04502280 A JP H04502280A JP 2515072 A JP2515072 A JP 2515072A JP 51507290 A JP51507290 A JP 51507290A JP H04502280 A JPH04502280 A JP H04502280A
- Authority
- JP
- Japan
- Prior art keywords
- absorbent
- weight
- nickel
- absorbent material
- hours
- 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.)
- Granted
Links
- 239000002250 absorbent Substances 0.000 title claims description 50
- 230000002745 absorbent Effects 0.000 title claims description 50
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims description 40
- 229910052759 nickel Inorganic materials 0.000 title description 14
- 239000000463 material Substances 0.000 claims description 39
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 239000001257 hydrogen Substances 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 9
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 9
- 239000004215 Carbon black (E152) Substances 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 7
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052785 arsenic Inorganic materials 0.000 claims 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims 1
- 239000002994 raw material Substances 0.000 description 14
- 229910052717 sulfur Inorganic materials 0.000 description 8
- 230000007420 reactivation Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 3
- -1 silicoalumina Inorganic materials 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- MLRVZFYXUZQSRU-UHFFFAOYSA-N 1-chlorohexane Chemical compound CCCCCCCl MLRVZFYXUZQSRU-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 208000000474 Poliomyelitis Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000002597 Solanum melongena Nutrition 0.000 description 1
- 244000061458 Solanum melongena Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
- C10G25/12—Recovery of used adsorbent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3433—Regenerating or reactivating of sorbents or filter aids other than those covered by B01J20/3408 - B01J20/3425
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Gas Separation By Absorption (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims (9)
- 1.新鮮な吸収剤物質が酸化ニッケル及び金属ニッケルの担持された混合物を含 んでなるその使用ずみ吸収剤物質を処理するに際して、使用ずみ物質を非酸化性 気体流下に150〜450℃の温度に加熱することを含んでなる使用ずみ吸収剤 物質の処理法。
- 2.液体炭化水素原料からカルボニルスルフイドを除去するために用いた使用ず み吸収剤物質に適用する請求の範囲1の方法。
- 3.液体炭化水素原料から砒素を除去するために用いた使用ずみ吸収剤物質に適 用する請求の範囲1の方法。
- 4.プロピレンの精製に用いた使用ずみ吸収剤物質に適用する請求の範囲1〜3 のいずれか1つの方法。
- 5.非酸化性気体が水素である請求の範囲1〜4のいずれか1つの方法。
- 6.非酸化性気体が窒素である請求の範囲1〜4のいずれか1つの方法。
- 7.温度が200〜300℃である請求の範囲1〜6のいずれか1つの方法。
- 8.請求の範囲1〜7のいずれか1つの方法によって得られた再活性化吸収剤物 質。
- 9.請求の範囲1〜7のいずれか1つの方法によって得られた再活性化吸収剤物 質を用いることによる炭化水素原料からの不純物の除去法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE8901116A BE1003395A3 (fr) | 1989-10-16 | 1989-10-16 | Procede de traitement d'un materiau absorbant usage a base de nickel. |
BE8901116 | 1989-10-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04502280A true JPH04502280A (ja) | 1992-04-23 |
JP2554400B2 JP2554400B2 (ja) | 1996-11-13 |
Family
ID=3884356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2515072A Expired - Fee Related JP2554400B2 (ja) | 1989-10-16 | 1990-10-09 | 使用ずみのニツケルに基づく吸収剤の処理法 |
Country Status (12)
Country | Link |
---|---|
US (1) | US5130282A (ja) |
EP (1) | EP0448698B1 (ja) |
JP (1) | JP2554400B2 (ja) |
AT (1) | ATE87504T1 (ja) |
BE (1) | BE1003395A3 (ja) |
CA (1) | CA2027605C (ja) |
DE (1) | DE69001244T2 (ja) |
DK (1) | DK0448698T3 (ja) |
ES (1) | ES2040133T3 (ja) |
GR (1) | GR3007537T3 (ja) |
RU (1) | RU2022997C1 (ja) |
WO (1) | WO1991005607A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5928500A (en) * | 1997-10-08 | 1999-07-27 | Catalytica Incorporated | Removal of halogenated organic compounds from hydrocarbon streams |
FR2809638B1 (fr) * | 2000-06-02 | 2002-12-06 | Inst Francais Du Petrole | Procede et dispositif de regeneration d'absorbants uses issus du traitement des fumees de generateurs thermiques |
US6632766B2 (en) * | 2000-12-08 | 2003-10-14 | Uop Llc | Composite adsorbents for purifying hydrocarbon streams |
US20040192986A1 (en) * | 2003-03-26 | 2004-09-30 | Wu Albert H. | Removal of sulfur compounds |
US9714204B1 (en) | 2016-07-28 | 2017-07-25 | Chevron Phillips Chemical Company Lp | Process for purifying ethylene produced from a methanol-to-olefins facility |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4083924A (en) * | 1974-01-23 | 1978-04-11 | Atlantic Richfield Company | Method of regenerating used contaminant-removing material |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1481614A (ja) * | 1965-09-30 | 1967-08-21 | ||
US4464252A (en) * | 1982-08-23 | 1984-08-07 | Exxon Research & Engineering Co. | Adsorbents for sulfur removal |
US4634515A (en) * | 1985-10-25 | 1987-01-06 | Exxon Research And Engineering Company | Nickel adsorbent for sulfur removal from hydrocarbon feeds |
DE3629631A1 (de) * | 1986-08-30 | 1988-03-03 | Basf Ag | Verfahren zur herstellung von medizinischen weissoelen und medizinischen paraffinen |
EP0308569B1 (en) * | 1987-09-24 | 1992-03-04 | Fina Research S.A. | Process for removing arsine from light olefin-containing hydrocarbon feedstocks |
JP3489134B2 (ja) * | 1993-06-22 | 2004-01-19 | 株式会社日立製作所 | 厨芥のコンポスト化方法及び装置 |
-
1989
- 1989-10-16 BE BE8901116A patent/BE1003395A3/fr not_active IP Right Cessation
-
1990
- 1990-10-09 WO PCT/EP1990/001691 patent/WO1991005607A1/en active IP Right Grant
- 1990-10-09 JP JP2515072A patent/JP2554400B2/ja not_active Expired - Fee Related
- 1990-10-09 ES ES199090916250T patent/ES2040133T3/es not_active Expired - Lifetime
- 1990-10-09 EP EP90916250A patent/EP0448698B1/en not_active Expired - Lifetime
- 1990-10-09 DE DE9090916250T patent/DE69001244T2/de not_active Expired - Fee Related
- 1990-10-09 AT AT90916250T patent/ATE87504T1/de not_active IP Right Cessation
- 1990-10-09 DK DK90916250.5T patent/DK0448698T3/da active
- 1990-10-15 CA CA002027605A patent/CA2027605C/en not_active Expired - Lifetime
- 1990-10-16 US US07/598,280 patent/US5130282A/en not_active Expired - Lifetime
-
1991
- 1991-06-14 RU SU914895804A patent/RU2022997C1/ru not_active IP Right Cessation
-
1993
- 1993-04-01 GR GR920403209T patent/GR3007537T3/el unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4083924A (en) * | 1974-01-23 | 1978-04-11 | Atlantic Richfield Company | Method of regenerating used contaminant-removing material |
Also Published As
Publication number | Publication date |
---|---|
ES2040133T3 (es) | 1993-10-01 |
EP0448698A1 (en) | 1991-10-02 |
WO1991005607A1 (en) | 1991-05-02 |
US5130282A (en) | 1992-07-14 |
BE1003395A3 (fr) | 1992-03-17 |
RU2022997C1 (ru) | 1994-11-15 |
CA2027605C (en) | 2001-05-01 |
GR3007537T3 (ja) | 1993-08-31 |
EP0448698B1 (en) | 1993-03-31 |
CA2027605A1 (en) | 1991-04-17 |
ATE87504T1 (de) | 1993-04-15 |
DK0448698T3 (da) | 1993-08-16 |
DE69001244T2 (de) | 1993-07-29 |
DE69001244D1 (de) | 1993-05-06 |
JP2554400B2 (ja) | 1996-11-13 |
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