ITMI921895A0 - Catalizzatore per la idroisonerizzazione di normal-paraffine a catena lunga e procedimento per la sua preparazione - Google Patents
Catalizzatore per la idroisonerizzazione di normal-paraffine a catena lunga e procedimento per la sua preparazioneInfo
- Publication number
- ITMI921895A0 ITMI921895A0 IT92MI1895A ITMI921895A ITMI921895A0 IT MI921895 A0 ITMI921895 A0 IT MI921895A0 IT 92MI1895 A IT92MI1895 A IT 92MI1895A IT MI921895 A ITMI921895 A IT MI921895A IT MI921895 A0 ITMI921895 A0 IT MI921895A0
- Authority
- IT
- Italy
- Prior art keywords
- hydro
- catalyst
- insulation
- procedure
- preparation
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title 1
- 238000009413 insulation Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 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)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Catalysts (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (11)
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 |
AT93202253T ATE142906T1 (de) | 1992-07-31 | 1993-07-30 | Katalysator zur hydroisomerisierung von langkettigen n-paraffinen und verfahren zu seiner herstellung |
JP20854493A JP4103053B2 (ja) | 1992-07-31 | 1993-07-30 | 二元機能触媒 |
DE69304840T DE69304840T2 (de) | 1992-07-31 | 1993-07-30 | Katalysator zur Hydroisomerisierung von langkettigen N-Paraffinen und Verfahren zu seiner Herstellung |
ES93202253T ES2092217T3 (es) | 1992-07-31 | 1993-07-30 | Catalizador para la hidroisomerizacion de n-parafinas de cadena larga y procedimiento para su preparacion. |
DK93202253.6T DK0582347T3 (it) | 1992-07-31 | 1993-07-30 | |
EP93202253A EP0582347B1 (en) | 1992-07-31 | 1993-07-30 | Catalyst for the hydroisomerization of long-chain N-paraffins and process for preparing it |
US08/449,957 US5602292A (en) | 1992-07-31 | 1995-05-25 | Catalyst for the hydroisomerization of long-chain n-paraffins and process for preparing it |
US08/519,759 US5767038A (en) | 1992-07-31 | 1995-08-28 | Catalyst for the hydroisomerization of long-chain N-paraffins and process for preparing it |
GR960402685T GR3021322T3 (en) | 1992-07-31 | 1996-10-10 | Catalyst for the hydroisomerization of long-chain N-paraffins and process for preparing it. |
US09/064,004 US5968344A (en) | 1992-07-31 | 1998-04-21 | Catalyst for the hydroisomerization of long-chain n-paraffins and process for preparing it |
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 (3)
Publication Number | Publication Date |
---|---|
ITMI921895A0 true ITMI921895A0 (it) | 1992-07-31 |
ITMI921895A1 ITMI921895A1 (it) | 1994-01-31 |
IT1256084B IT1256084B (it) | 1995-11-27 |
Family
ID=11363809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
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 |
ID26172A (id) | 1997-07-21 | 2000-11-30 | Procter & Gamble | Proses pembuatan surfaktan-surfaktan alkilbenzenasulfonat dan produk-produknya |
DE69814870T2 (de) | 1997-07-21 | 2004-05-06 | The Procter & Gamble Company, Cincinnati | Reinigungsmittelzusammensetzungen mit kristallinitätsstörenden tensiden |
KR100391190B1 (ko) | 1997-07-21 | 2003-07-12 | 더 프록터 앤드 갬블 캄파니 | 개선된 알킬벤젠설포네이트 계면활성제 |
AU8124498A (en) | 1997-07-21 | 1999-02-16 | Procter & Gamble Company, The | 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 |
ATE286867T1 (de) | 1997-08-08 | 2005-01-15 | Procter & Gamble | Verfahren zur herstellung von oberflächaktiven verbindungen mittels adsorptiven trennung |
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 |
EP1022326A1 (en) | 1999-01-20 | 2000-07-26 | The Procter & Gamble Company | Hard surface cleaning compositions comprising modified alkylbenzene sulfonates |
EP1022325A3 (en) | 1999-01-20 | 2003-01-02 | 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 |
DE602004026060D1 (de) | 2003-06-23 | 2010-04-29 | Shell Int Research | Verfahren zur herstellung eines schmierbaseöls |
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 |
US7655134B2 (en) | 2004-11-18 | 2010-02-02 | Shell Oil Company | Process to prepare a base oil |
US7670476B2 (en) | 2004-11-18 | 2010-03-02 | Shell Oil Company | Process to prepare a gas oil |
US8070885B2 (en) | 2005-05-19 | 2011-12-06 | Shell Oil Company | Quenching fluid |
CN101198682B (zh) | 2005-06-23 | 2012-02-22 | 国际壳牌研究有限公司 | 电气绝缘用油配制物 |
WO2007003623A1 (en) | 2005-07-01 | 2007-01-11 | Shell Internationale Research Maatschappij B.V. | Process to prepare a blended brightstock |
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 |
EP2293873A2 (en) * | 2008-05-22 | 2011-03-16 | Dow Global Technologies Inc. | Metallic platinum on silica support catalyst and process for preparing it |
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 |
US9587183B2 (en) | 2011-12-16 | 2017-03-07 | Shell Oil Company | Integrated gas-to-liquid condensate process and apparatus |
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 ES ES93202253T patent/ES2092217T3/es not_active Expired - Lifetime
- 1993-07-30 DE DE69304840T patent/DE69304840T2/de not_active Expired - Lifetime
- 1993-07-30 EP EP93202253A patent/EP0582347B1/en not_active Expired - Lifetime
- 1993-07-30 JP JP20854493A patent/JP4103053B2/ja not_active Expired - Fee Related
- 1993-07-30 AT AT93202253T patent/ATE142906T1/de not_active IP Right Cessation
- 1993-07-30 DK DK93202253.6T patent/DK0582347T3/da active
-
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 |
---|---|
EP0582347A1 (en) | 1994-02-09 |
JP4103053B2 (ja) | 2008-06-18 |
DE69304840D1 (de) | 1996-10-24 |
ITMI921895A1 (it) | 1994-01-31 |
ES2092217T3 (es) | 1996-11-16 |
DE69304840T2 (de) | 1997-03-20 |
US5602292A (en) | 1997-02-11 |
ATE142906T1 (de) | 1996-10-15 |
US5767038A (en) | 1998-06-16 |
JPH06170226A (ja) | 1994-06-21 |
GR3021322T3 (en) | 1997-01-31 |
DK0582347T3 (it) | 1997-02-24 |
IT1256084B (it) | 1995-11-27 |
US5968344A (en) | 1999-10-19 |
EP0582347B1 (en) | 1996-09-18 |
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