DK0582347T3 - - Google Patents
Info
- Publication number
- DK0582347T3 DK0582347T3 DK93202253.6T DK93202253T DK0582347T3 DK 0582347 T3 DK0582347 T3 DK 0582347T3 DK 93202253 T DK93202253 T DK 93202253T DK 0582347 T3 DK0582347 T3 DK 0582347T3
- Authority
- DK
- Denmark
- Prior art keywords
- catalyst
- range
- comprised
- hydroisomerization
- paraffins
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000011959 amorphous silica alumina Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 239000001993 wax Substances 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 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
- C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
- C10G65/02—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only
- C10G65/04—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including only refining steps
- C10G65/043—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including only refining steps at least one step being a change in the structural skeleton
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/12—Silica and alumina
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
-
- 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
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/58—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins
- C10G45/60—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used
- C10G45/62—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing platinum group metals or compounds thereof
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/617—500-1000 m2/g
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/633—Pore volume less than 0.5 ml/g
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/643—Pore diameter less than 2 nm
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/66—Pore distribution
- B01J35/67—Pore distribution monomodal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI921895A IT1256084B (it) | 1992-07-31 | 1992-07-31 | Catalizzatore per la idroisomerizzazione di normal-paraffine a catena lunga e procedimento per la sua preparazione |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK0582347T3 true DK0582347T3 (it) | 1997-02-24 |
Family
ID=11363809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK93202253.6T DK0582347T3 (it) | 1992-07-31 | 1993-07-30 |
Country Status (9)
| Country | Link |
|---|---|
| US (3) | US5602292A (it) |
| EP (1) | EP0582347B1 (it) |
| JP (1) | JP4103053B2 (it) |
| AT (1) | ATE142906T1 (it) |
| DE (1) | DE69304840T2 (it) |
| DK (1) | DK0582347T3 (it) |
| ES (1) | ES2092217T3 (it) |
| GR (1) | GR3021322T3 (it) |
| IT (1) | IT1256084B (it) |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1256084B (it) * | 1992-07-31 | 1995-11-27 | Eniricerche Spa | Catalizzatore per la idroisomerizzazione di normal-paraffine a catena lunga e procedimento per la sua preparazione |
| IT1276726B1 (it) * | 1995-06-15 | 1997-11-03 | Eniricerche Spa | Gel di allumina mesoporoso e procedimento per la sua preparazione |
| EP0776959B1 (en) | 1995-11-28 | 2004-10-06 | Shell Internationale Researchmaatschappij B.V. | Process for producing lubricating base oils |
| IT1284007B1 (it) * | 1996-06-13 | 1998-05-08 | Eniricerche Spa | Procedimento per la preparazione di un materiale micro-meso poroso ad alta area superficiale con distribuzione controllata della |
| US6296759B1 (en) * | 1997-02-13 | 2001-10-02 | Engelhard Corporation | Process for hydrogenation, hydroisomerization and/or hydrodesulfurization of a sulfur containment containing feedstock |
| WO1998035754A1 (en) * | 1997-02-13 | 1998-08-20 | Engelhard Corporation | Process for hydrogenation, hydroisomerization and/or hydrodesulfurization of a sulfur contaminant containing feedstock |
| ZA986448B (en) | 1997-07-21 | 1999-01-21 | Procter & Gamble | Cleaning products comprising improved alkylarylsulfonate surfactants prepared via vinylidene olefins and processes for preparation thereof |
| PH11998001775B1 (en) * | 1997-07-21 | 2004-02-11 | Procter & Gamble | Improved alkyl aryl sulfonate surfactants |
| DE69814400T2 (de) | 1997-07-21 | 2004-03-11 | The Procter & Gamble Company, Cincinnati | Verbessertes verfahren zur herstellung von alkylbenzolsulfonat-tensiden und daraus erhaltene produkte |
| ES2195358T3 (es) | 1997-07-21 | 2003-12-01 | Procter & Gamble | Composiciones detergentes que contienen mezclas de tensioactivos de cristalinidad desorganizada. |
| CZ299604B6 (cs) | 1997-07-21 | 2008-09-17 | The Procter & Gamble Company | Systém alkylarylsulfonátových povrchove aktivníchlátek a cisticí prípravek s jeho obsahem |
| ES2236930T3 (es) | 1997-08-08 | 2005-07-16 | THE PROCTER & GAMBLE COMPANY | Procesos mejorados para fabricar tensioactivos mediante separacion adsortiva. |
| JP4159123B2 (ja) * | 1997-08-12 | 2008-10-01 | 福岡県 | 金属酸化物構造体およびその製造方法 |
| IT1295300B1 (it) * | 1997-10-09 | 1999-05-04 | Agip Petroli | Procedimento per l'idroisomerizzazione di n-paraffine a catena lunga e catalizzatore adatto allo scopo |
| EP1022325A3 (en) | 1999-01-20 | 2003-01-02 | The Procter & Gamble Company | Hard surface cleaning compositions comprising modified alkylbenzene sulfonates |
| EP1022326A1 (en) | 1999-01-20 | 2000-07-26 | The Procter & Gamble Company | Hard surface cleaning compositions comprising modified alkylbenzene sulfonates |
| EP1101813B1 (en) * | 1999-11-19 | 2014-03-19 | ENI S.p.A. | Process for the preparation of middle distillates starting from linear paraffins |
| US6398946B1 (en) | 1999-12-22 | 2002-06-04 | Chevron U.S.A., Inc. | Process for making a lube base stock from a lower molecular weight feedstock |
| IT1318528B1 (it) * | 2000-05-19 | 2003-08-27 | Enichem Spa | Catalizzatori solidi basici. |
| US6773578B1 (en) | 2000-12-05 | 2004-08-10 | Chevron U.S.A. Inc. | Process for preparing lubes with high viscosity index values |
| ITMI20010782A1 (it) * | 2001-04-12 | 2002-10-12 | Enitecnologie Spa | Procedimento per ottenere un carburante taglio diesel mediante oligomerizzazione di olefine o loro miscele |
| DE10256431A1 (de) * | 2002-05-31 | 2004-01-15 | SCHÜMANN SASOL GmbH | Mikrokristallines Paraffin, Verfahren zur Herstellung von mikrokristallinen Paraffine und Verwendung der mikrokristallinen Paraffine |
| FR2846574B1 (fr) * | 2002-10-30 | 2006-05-26 | Inst Francais Du Petrole | Catalyseur et procede d'hydrocraquage de charges hydrocarbonees |
| FR2846664B1 (fr) * | 2002-10-30 | 2006-09-08 | Inst Francais Du Petrole | Procede flexible de production de bases huiles et de distillats moyens avec une etape de pretraitement convertissant suivie d'un deparaffinage catalytique |
| JP4938447B2 (ja) | 2003-06-23 | 2012-05-23 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | 潤滑基油の製造方法 |
| ITMI20040798A1 (it) * | 2004-04-23 | 2004-07-23 | Eni Spa | Processo e catalizzatori per l'apertura di anelli naftenici |
| US20050274646A1 (en) * | 2004-06-14 | 2005-12-15 | Conocophillips Company | Catalyst for hydroprocessing of Fischer-Tropsch products |
| US7345211B2 (en) | 2004-07-08 | 2008-03-18 | Conocophillips Company | Synthetic hydrocarbon products |
| US7323100B2 (en) | 2004-07-16 | 2008-01-29 | Conocophillips Company | Combination of amorphous materials for hydrocracking catalysts |
| EP1812532A1 (en) | 2004-11-18 | 2007-08-01 | Shell Internationale Research Maatschappij B.V. | Process to prepare a base oil |
| RU2007122454A (ru) | 2004-11-18 | 2008-12-27 | Шелл Интернэшнл Рисерч Маашелл Интернэшнл Рисерч Маатсхаппий Б.В. (Nсхаппий Б.В. (Nl)L) | Способ получения газойля |
| WO2006122585A1 (en) | 2005-05-19 | 2006-11-23 | Shell Internationale Research Maatschappij B.V. | Quenching fluid |
| EP1893729B1 (en) | 2005-06-23 | 2019-04-10 | Shell International Research Maatschappij B.V. | Electrical oil formulation |
| CA2613073A1 (en) | 2005-07-01 | 2007-01-11 | Shell Internationale Research Maatschappij B.V. | Process to prepare a mineral derived residual deasphalted oil blend |
| ITMI20051295A1 (it) * | 2005-07-08 | 2007-01-09 | Eni Spa | Processo per migliorare le qualita' come carburante di miscele idrocarburiche idrotrattate |
| ITMI20062193A1 (it) * | 2006-11-15 | 2008-05-16 | Eni Spa | Processo per produrre frazioni idrocarburiche da miscele di origine biologica |
| ITMI20070522A1 (it) * | 2007-03-16 | 2008-09-17 | Eni Spa | Composizione idrocarburica utile come carburante e combustibile contenente una componente petrolifera e una componente di origine biologica |
| US8221614B2 (en) | 2007-12-07 | 2012-07-17 | Shell Oil Company | Base oil formulations |
| EP2075314A1 (en) | 2007-12-11 | 2009-07-01 | Shell Internationale Research Maatschappij B.V. | Grease formulations |
| CA2709982C (en) | 2007-12-21 | 2016-01-26 | Uop Llc | Production of aviation fuel from biorenewable feedstocks |
| CN102105219B (zh) * | 2008-05-22 | 2013-07-31 | 陶氏环球技术有限责任公司 | 二氧化硅承载催化剂上的金属铂及其制备方法 |
| EP2100946A1 (en) | 2008-09-08 | 2009-09-16 | Shell Internationale Researchmaatschappij B.V. | Oil formulations |
| IT1392194B1 (it) | 2008-12-12 | 2012-02-22 | Eni Spa | Processo per la produzione di idrocarburi, utili per autotrazione, da miscele di origine biologica |
| IT1392806B1 (it) | 2009-02-02 | 2012-03-23 | Eni Spa | Processo integrato di cracking catalitico a letto fluido per ottenere miscele idrocarburiche con elevate qualita' come carburante |
| IT1396939B1 (it) | 2009-12-09 | 2012-12-20 | Eni Spa | Composizione idrocarburica utile come carburante o combustibile |
| JP2015504934A (ja) | 2011-12-16 | 2015-02-16 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイＳｈｅｌｌ Ｉｎｔｅｒｎａｔｉｏｎａｌｅ Ｒｅｓｅａｒｃｈ Ｍａａｔｓｃｈａｐｐｉｊ Ｂｅｓｌｏｔｅｎｖｅｎｎｏｏｔｓｈａｐ | 統合された気体から液体への凝縮物の方法と装置（ｉｎｔｅｇｒａｔｅｄｇａｓ−ｔｏ−ｌｉｑｕｉｄｃｏｎｄｅｎｓａｔｅｐｒｏｃｅｓｓａｎｄａｐｐａｒａｔｕｓ） |
| BR102019027610B1 (pt) | 2019-12-20 | 2022-03-08 | Petróleo Brasileiro S.A. – Petrobras | Processo seletivo para produção de combustíveis e destilados parafínicos de alto peso molecular renováveis e combustível |
| BR102020017281A2 (pt) | 2020-08-24 | 2022-03-08 | Petróleo Brasileiro S.A. - Petrobras | Catalisadores e processo seletivo para produção de combustíveis de aviação renováveis e biocombustível produzido |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3657153A (en) * | 1969-04-08 | 1972-04-18 | Inst De Cercetari Pentru Prelu | Process for the preparation of a catalyst for the reforming and aromatization of benzines |
| US3637484A (en) * | 1970-06-18 | 1972-01-25 | Union Oil Co | Platinum group metal on silica-alumina hydrogenation catalyst and process |
| US3855347A (en) * | 1972-09-15 | 1974-12-17 | Badger Co | Process for hydrogenating halogenated hydrocarbons |
| AU603344B2 (en) * | 1985-11-01 | 1990-11-15 | Mobil Oil Corporation | Two stage lubricant dewaxing process |
| IT1219692B (it) * | 1988-05-06 | 1990-05-24 | Eniricerche Spa | Gel di silice e allumina cataliticamente attivo e procedimento per la sua preparazione |
| US5139989A (en) * | 1991-08-28 | 1992-08-18 | Uop | Amorphous silica/alumina/phosphate composition and uses thereof |
| IT1256084B (it) * | 1992-07-31 | 1995-11-27 | Eniricerche Spa | Catalizzatore per la idroisomerizzazione di normal-paraffine a catena lunga e procedimento per la sua preparazione |
| IT1255526B (it) * | 1992-09-29 | 1995-11-09 | Eniricerche Spa | Procedimento per la preparazione di un catalizzatore efficace nella idroisomerizzazione di normal-paraffine |
| IT1264031B (it) * | 1993-04-08 | 1996-09-09 | Eniricerche Spa | Processo per la produzione di benzine e jet fuel a partire da n-butano |
| IT1264423B1 (it) * | 1993-05-12 | 1996-09-23 | Eniricerche Spa | Catalizzatore bifunzionale utile nella idroisomerizzazione di cere e procedimento per la sua preparazione |
| IT1264626B1 (it) * | 1993-06-16 | 1996-10-04 | Eniricerche Spa | Processo per la preparazione di cumene |
| IT1265320B1 (it) * | 1993-12-22 | 1996-10-31 | Eniricerche Spa | Procedimento per la preparazione di silico-allumine amorfe cataliticamente attive |
-
1992
- 1992-07-31 IT ITMI921895A patent/IT1256084B/it active IP Right Grant
-
1993
- 1993-07-30 EP EP93202253A patent/EP0582347B1/en not_active Expired - Lifetime
- 1993-07-30 DK DK93202253.6T patent/DK0582347T3/da active
- 1993-07-30 ES ES93202253T patent/ES2092217T3/es not_active Expired - Lifetime
- 1993-07-30 DE DE69304840T patent/DE69304840T2/de not_active Expired - Lifetime
- 1993-07-30 AT AT93202253T patent/ATE142906T1/de not_active IP Right Cessation
- 1993-07-30 JP JP20854493A patent/JP4103053B2/ja not_active Expired - Fee Related
-
1995
- 1995-05-25 US US08/449,957 patent/US5602292A/en not_active Expired - Lifetime
- 1995-08-28 US US08/519,759 patent/US5767038A/en not_active Expired - Lifetime
-
1996
- 1996-10-10 GR GR960402685T patent/GR3021322T3/el unknown
-
1998
- 1998-04-21 US US09/064,004 patent/US5968344A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI921895A0 (it) | 1992-07-31 |
| IT1256084B (it) | 1995-11-27 |
| DE69304840D1 (de) | 1996-10-24 |
| US5968344A (en) | 1999-10-19 |
| US5767038A (en) | 1998-06-16 |
| EP0582347B1 (en) | 1996-09-18 |
| JPH06170226A (ja) | 1994-06-21 |
| JP4103053B2 (ja) | 2008-06-18 |
| ITMI921895A1 (it) | 1994-01-31 |
| ES2092217T3 (es) | 1996-11-16 |
| EP0582347A1 (en) | 1994-02-09 |
| ATE142906T1 (de) | 1996-10-15 |
| DE69304840T2 (de) | 1997-03-20 |
| US5602292A (en) | 1997-02-11 |
| GR3021322T3 (en) | 1997-01-31 |
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