ES2105167T3 - Composicion a base de oxido cerico, preparacion y utilizacion. - Google Patents
Composicion a base de oxido cerico, preparacion y utilizacion.Info
- Publication number
- ES2105167T3 ES2105167T3 ES93402180T ES93402180T ES2105167T3 ES 2105167 T3 ES2105167 T3 ES 2105167T3 ES 93402180 T ES93402180 T ES 93402180T ES 93402180 T ES93402180 T ES 93402180T ES 2105167 T3 ES2105167 T3 ES 2105167T3
- Authority
- ES
- Spain
- Prior art keywords
- oxide
- compositions
- ceric
- ceric oxide
- hydroxide
- 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
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
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
- C01B13/0281—Physical processing only by adsorption on solids in getters
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G17/00—Compounds of germanium
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- 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
-
- 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
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
- C01B13/0262—Physical processing only by adsorption on solids characterised by the adsorbent
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
- C01F17/224—Oxides or hydroxides of lanthanides
- C01F17/235—Cerium oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G29/00—Compounds of bismuth
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/006—Compounds containing, besides chromium, two or more other elements, with the exception of oxygen or hydrogen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
- C01G49/0054—Mixed oxides or hydroxides containing one rare earth metal, yttrium or scandium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/006—Compounds containing, besides nickel, two or more other elements, with the exception of oxygen or hydrogen
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
- C01P2002/54—Solid solutions containing elements as dopants one element only
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Gas Separation By Absorption (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
LA INVENCION CONCIERNE A NUEVAS COMPOSICIONES A BASE DE OXIDO CERICO QUE PRESENTAN UNA CAPACIDAD DE ALMACENADO DEL OXIGENO MEJORADA, ESTAS COMPOSICIONES ESTAN CARACTERIZADAS POR EL HECHO QUE CONTIENEN, ADEMAS DEL OXIDO CERICO, AL MENOS UN OXIDO DE OTRO ELEMENTO METALICO M ESCOGIDO EN EL GRUPO CONSTITUIDO POR EL HIERRO, EL BISMUTO, EL NIQUEL, ES ESTAÑO Y EL CROMO O UNA DE SUS MEZCLAS, ESTE OXIDO SE ENCUENTRA PREFERENTEMENTE EN SOLUCION SOLIDA CON EL OXIDO DE CERICO PRECIPITADO. EL PROCESO DE SINTESIS DE ESTAS COMPOSICIONES CONSISTE EN PRIMER LUGAR EN PREPARAR UNA MEZCLA INTIMA ENTRE (I) UN OXIDO O UN HIDROXIDO CERICO Y (II) AL MENOS UN ADITIVO CONSTITUIDO POR UN HIDROXIDO O UNA SAL, DESCOMPONIBLE TERMICAMENTE EN OXIDO, DEL ELEMENTO METALICO M, Y DESPUES EN CALCINAR ESTA MEZCLA DE MANERA QUE OBTENGA LA COMPOSICION A BASE DE OXIDOS DESEADA. LAS COMPOSICIONES SEGUN LA INVENCION SON PARTICULARMENTE UTILES EN LA FABRICACION DE CATALIZADORES Y/O SOPORTES DE CATALIZADORES, EN PARTICULAR LOS DESTINADOS A LOS TRATAMIENTOS DE GASES DE ESCAPE DE MOTORES DE COMBUSTION INTERNA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9210953A FR2695574B1 (fr) | 1992-09-15 | 1992-09-15 | Composition à base d'oxyde cérique, préparation et utilisation. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2105167T3 true ES2105167T3 (es) | 1997-10-16 |
Family
ID=9433493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93402180T Expired - Lifetime ES2105167T3 (es) | 1992-09-15 | 1993-09-08 | Composicion a base de oxido cerico, preparacion y utilizacion. |
Country Status (14)
Country | Link |
---|---|
US (1) | US5928619A (es) |
EP (1) | EP0588691B1 (es) |
JP (1) | JP2651993B2 (es) |
KR (1) | KR0170423B1 (es) |
AT (1) | ATE152931T1 (es) |
AU (1) | AU662652B2 (es) |
BR (1) | BR9303789A (es) |
CA (1) | CA2106117C (es) |
DE (1) | DE69310652T2 (es) |
ES (1) | ES2105167T3 (es) |
FI (1) | FI934027A (es) |
FR (1) | FR2695574B1 (es) |
NO (1) | NO305349B1 (es) |
ZA (1) | ZA936726B (es) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3505236B2 (ja) * | 1994-10-05 | 2004-03-08 | 株式会社三徳 | 酸素吸収・放出能を有する複合酸化物及びその製造法 |
JP3386594B2 (ja) * | 1994-10-05 | 2003-03-17 | 株式会社三徳 | 酸素吸収・放出能を有する複合酸化物の製造法 |
FR2720296B1 (fr) * | 1994-05-27 | 1996-07-12 | Rhone Poulenc Chimie | Composés à base d'alumine, d'oxyde de cérium et d'oxyde de zirconium à réductibilité élevée, leur procédé de préparation et leur utilisation dans la préparation de catalyseurs. |
FR2729309B1 (fr) * | 1995-01-13 | 1997-04-18 | Rhone Poulenc Chimie | Composition catalytique a base d'oxyde de cerium et d'oxyde de manganese, de fer ou de praseodyme, son procede de preparation et son utilisation en catalyse postcombustion automobile |
US6165933A (en) * | 1995-05-05 | 2000-12-26 | W. R. Grace & Co.-Conn. | Reduced NOx combustion promoter for use in FCC processes |
US6129834A (en) * | 1995-05-05 | 2000-10-10 | W. R. Grace & Co. -Conn. | NOx reduction compositions for use in FCC processes |
JP3992402B2 (ja) | 1999-05-25 | 2007-10-17 | 株式会社コーセー | 金属酸化物固溶酸化セリウムからなる紫外線遮断剤並びにそれを配合した樹脂組成物及び化粧料 |
AU3978501A (en) | 2000-02-18 | 2001-08-27 | Conoco Inc. | Reticulated ceramic foam catalysts for synthesis gas production |
DE10132442A1 (de) * | 2001-07-04 | 2003-01-23 | Studiengesellschaft Kohle Mbh | Katalysatoren auf Ceroxid-Basis und deren Verwendung zur katalytischen Verbrennung |
US6596042B1 (en) * | 2001-11-16 | 2003-07-22 | Ferro Corporation | Method of forming particles for use in chemical-mechanical polishing slurries and the particles formed by the process |
WO2003044123A1 (en) * | 2001-11-16 | 2003-05-30 | Ferro Corporation | Particles for use in cmp slurries and method for producing them |
KR100460102B1 (ko) * | 2002-07-15 | 2004-12-03 | 한화석유화학 주식회사 | 금속산화물 초미립자의 제조방법 |
FR2848784B1 (fr) * | 2002-12-20 | 2005-01-21 | Rhodia Elect & Catalysis | Cigarette comprenant dans son filtre un catalyseur a base d'oxyde de cerium pour le traitement des fumees |
JP2007216150A (ja) * | 2006-02-16 | 2007-08-30 | Dowa Electronics Materials Co Ltd | 酸化触媒用複合酸化物およびフィルター |
JP2007229548A (ja) * | 2006-02-27 | 2007-09-13 | Nippon Steel Engineering Co Ltd | バイオマス熱分解ガス化過程で使用する改質用触媒とその製造方法、及びその改質用触媒を用いた改質方法とバイオマス熱分解ガス化装置、並びに触媒再生方法 |
GB0609783D0 (en) * | 2006-05-17 | 2006-06-28 | Magnesium Elektron Ltd | Improved oxygen storage component |
JP5063980B2 (ja) | 2006-10-24 | 2012-10-31 | Dowaエレクトロニクス株式会社 | 排ガス浄化触媒用複合酸化物およびフィルター |
JP5190196B2 (ja) | 2006-12-01 | 2013-04-24 | Dowaエレクトロニクス株式会社 | 排ガス浄化触媒用複合酸化物および排ガス浄化触媒、並びにディーゼル排ガス浄化用フィルター |
EP2125204A1 (en) * | 2007-03-13 | 2009-12-02 | Umicore AG & Co. KG | Metal-doped nickel oxides as catalysts for the methanation of carbon monoxide |
WO2009044736A1 (ja) | 2007-10-01 | 2009-04-09 | Dowa Electronics Materials Co., Ltd. | セリウム含有複合酸化物およびその製造方法、pm燃焼用触媒、並びに、ディーゼルパティキュレートフィルタ |
WO2009131118A1 (ja) | 2008-04-23 | 2009-10-29 | Dowaエレクトロニクス株式会社 | 排ガス浄化触媒用複合酸化物とその製造方法および排ガス浄化触媒用塗料とディーゼル排ガス浄化用フィルタ |
JP5528040B2 (ja) | 2008-10-03 | 2014-06-25 | Dowaエレクトロニクス株式会社 | 排ガス浄化触媒用複合酸化物とその製造方法および排ガス浄化触媒用塗料とディーゼル排ガス浄化用フィルタ |
US8530372B2 (en) * | 2009-07-22 | 2013-09-10 | Basf Corporation | Oxygen storage catalyst with decreased ceria reduction temperature |
CN101850247A (zh) * | 2010-06-02 | 2010-10-06 | 淄博加华新材料资源有限公司 | 氧化铈和氧化锡的复合氧化物的制备工艺 |
FR2962431B1 (fr) | 2010-07-07 | 2018-01-19 | Rhodia Operations | Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catlyse. |
FR2965189A1 (fr) | 2010-09-29 | 2012-03-30 | Rhodia Operations | Procede de traitement d'un gaz contenant des oxydes d'azote (nox) utilisant comme catalyseur une composition a base d'oxyde de cerium et d'oxyde de niobium |
JP5738231B2 (ja) * | 2012-05-07 | 2015-06-17 | 株式会社ノリタケカンパニーリミテド | 排ガス浄化用触媒材およびその製造方法 |
CN111565838B (zh) | 2018-02-23 | 2023-09-26 | 株式会社Lg化学 | 用于烃的氧氯化工艺的催化剂、其制备方法和使用该催化剂制备烃的氧氯化化合物的方法 |
CN111556787A (zh) * | 2018-02-23 | 2020-08-18 | 株式会社Lg化学 | 用于烃的氧氯化工艺的催化剂、其制备方法和使用该催化剂制备烃的氧氯化化合物的方法 |
KR102241948B1 (ko) * | 2019-12-19 | 2021-04-20 | 한서대학교 산학협력단 | 내황성이 개선된 선택적 촉매환원반응용 저온 탈질촉매 및 그 제조방법 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3951867A (en) * | 1974-10-07 | 1976-04-20 | Corning Glass Works | Coprecipitated CeO2 --SnO2 catalyst supports |
JPS54500021A (es) * | 1977-11-01 | 1979-09-06 | ||
FR2559755A1 (fr) * | 1984-02-20 | 1985-08-23 | Rhone Poulenc Spec Chim | Oxyde cerique a nouvelles caracteristiques morphologiques et son procede d'obtention |
FR2571981A1 (fr) * | 1984-10-23 | 1986-04-25 | Elf Aquitaine | Systeme catalytique pour la production d'hydrocarbures riches en olefines legeres a partir de l'oxyde de carbone et de l'hydrogene |
JPH0649146B2 (ja) * | 1985-06-07 | 1994-06-29 | 松下電器産業株式会社 | 酸化触媒 |
US4798819A (en) * | 1985-07-01 | 1989-01-17 | Texaco Inc. | Catalyst for control of emission of sulfur oxides |
FR2584388B1 (fr) * | 1985-07-03 | 1991-02-15 | Rhone Poulenc Spec Chim | Composition a base d'oxyde cerique, sa preparation et ses utilisations |
US4714694A (en) * | 1986-06-30 | 1987-12-22 | Engelhard Corporation | Aluminum-stabilized ceria catalyst compositions, and methods of making the same |
FR2608583B1 (fr) * | 1986-12-19 | 1990-12-07 | Rhone Poulenc Chimie | Oxyde cerique a nouvelles caracteristiques morphologiques et son procede d'obtention |
DE3873258D1 (de) * | 1987-10-30 | 1992-09-03 | Degussa | Platin-freier dreiweg-katalysator. |
US5063193A (en) * | 1990-06-06 | 1991-11-05 | General Motors Corporation | Base metal automotive exhaust catalysts with improved activity and stability and method of making the catalysts |
FR2677347B1 (fr) * | 1991-06-05 | 1993-08-20 | Rhone Poulenc Chimie | Composition a base d'oxyde cerique, sa preparation et ses utilisations. |
FR2684662B1 (fr) * | 1991-12-09 | 1994-05-06 | Rhone Poulenc Chimie | Composition a base d'oxyde cerique, preparation et utilisation. |
FR2701471B1 (fr) * | 1993-02-10 | 1995-05-24 | Rhone Poulenc Chimie | Procédé de synthèse de compositions à base d'oxydes mixtes de zirconium et de cérium, compositions ainsi obtenues et utilisations de ces dernières. |
FR2715580B1 (fr) * | 1994-01-31 | 1996-04-05 | Inst Francais Du Petrole | Catalyseur de traitement des gaz d'échappement des moteurs à combustion interne. |
FR2719502B1 (fr) * | 1994-05-09 | 1996-06-07 | Rhone Poulenc Chimie | Dispersion colloïdale à base d'oxyde de cérium et d'oxyde de titane son procédé de préparation, son application au revêtement de substrats et substrats ainsi revêtus. |
-
1992
- 1992-09-15 FR FR9210953A patent/FR2695574B1/fr not_active Expired - Fee Related
-
1993
- 1993-09-08 AU AU46203/93A patent/AU662652B2/en not_active Ceased
- 1993-09-08 AT AT93402180T patent/ATE152931T1/de not_active IP Right Cessation
- 1993-09-08 EP EP93402180A patent/EP0588691B1/fr not_active Expired - Lifetime
- 1993-09-08 ES ES93402180T patent/ES2105167T3/es not_active Expired - Lifetime
- 1993-09-08 DE DE69310652T patent/DE69310652T2/de not_active Expired - Fee Related
- 1993-09-13 NO NO933255A patent/NO305349B1/no not_active IP Right Cessation
- 1993-09-13 ZA ZA936726A patent/ZA936726B/xx unknown
- 1993-09-14 FI FI934027A patent/FI934027A/fi unknown
- 1993-09-14 BR BR9303789A patent/BR9303789A/pt not_active IP Right Cessation
- 1993-09-14 JP JP5251015A patent/JP2651993B2/ja not_active Expired - Fee Related
- 1993-09-14 CA CA002106117A patent/CA2106117C/fr not_active Expired - Fee Related
- 1993-09-15 KR KR1019930018561A patent/KR0170423B1/ko not_active IP Right Cessation
-
1997
- 1997-07-07 US US08/888,507 patent/US5928619A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
NO305349B1 (no) | 1999-05-18 |
CA2106117C (fr) | 2000-11-21 |
KR0170423B1 (ko) | 1999-01-15 |
FR2695574B1 (fr) | 1994-11-04 |
US5928619A (en) | 1999-07-27 |
DE69310652T2 (de) | 1997-11-27 |
JP2651993B2 (ja) | 1997-09-10 |
AU662652B2 (en) | 1995-09-07 |
AU4620393A (en) | 1994-03-24 |
CA2106117A1 (fr) | 1994-03-16 |
ATE152931T1 (de) | 1997-05-15 |
EP0588691B1 (fr) | 1997-05-14 |
EP0588691A1 (fr) | 1994-03-23 |
DE69310652D1 (de) | 1997-06-19 |
KR940006923A (ko) | 1994-04-26 |
ZA936726B (en) | 1994-05-23 |
NO933255L (no) | 1994-03-16 |
JPH06211525A (ja) | 1994-08-02 |
NO933255D0 (no) | 1993-09-13 |
FI934027A0 (fi) | 1993-09-14 |
FI934027A (fi) | 1994-03-16 |
BR9303789A (pt) | 1994-06-07 |
FR2695574A1 (fr) | 1994-03-18 |
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