DE69633869D1 - Molybdan-modifierte vanadin-phosphor-oxidkatalysatoren zur herstellung von maleinsäureanhydrid - Google Patents
Molybdan-modifierte vanadin-phosphor-oxidkatalysatoren zur herstellung von maleinsäureanhydridInfo
- Publication number
- DE69633869D1 DE69633869D1 DE69633869T DE69633869T DE69633869D1 DE 69633869 D1 DE69633869 D1 DE 69633869D1 DE 69633869 T DE69633869 T DE 69633869T DE 69633869 T DE69633869 T DE 69633869T DE 69633869 D1 DE69633869 D1 DE 69633869D1
- Authority
- DE
- Germany
- Prior art keywords
- molybdan
- phosphoroxide
- vanadin
- catalysts
- manufacture
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0093—Microreactors, e.g. miniaturised or microfabricated reactors
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
- B01J27/198—Vanadium
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
- B01J27/198—Vanadium
- B01J27/199—Vanadium with chromium, molybdenum, tungsten or polonium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/215—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of saturated hydrocarbyl groups
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00819—Materials of construction
- B01J2219/00835—Comprising catalytically active material
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Furan Compounds (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US538005 | 1983-09-30 | ||
US08/538,005 US5945368A (en) | 1995-10-02 | 1995-10-02 | Molybdenum-modified vanadium-phosphorus oxide catalysts for the production of maleic anhydride |
PCT/US1996/015724 WO1997012674A1 (en) | 1995-10-02 | 1996-09-24 | Molybdenum-modified vanadium-phosphorus oxide catalysts for the production of maleic anhydride |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69633869D1 true DE69633869D1 (de) | 2004-12-23 |
DE69633869T2 DE69633869T2 (de) | 2005-03-17 |
Family
ID=24145033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69633869T Expired - Lifetime DE69633869T2 (de) | 1995-10-02 | 1996-09-24 | Molybdan-modifierte vanadin-phosphor-oxidkatalysatoren zur herstellung von maleinsäureanhydrid |
Country Status (4)
Country | Link |
---|---|
US (2) | US5945368A (de) |
EP (1) | EP0876212B1 (de) |
DE (1) | DE69633869T2 (de) |
WO (1) | WO1997012674A1 (de) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6107234A (en) * | 1999-01-29 | 2000-08-22 | Scientific Design Company, Inc. | Phosphorus/vanadium maleic anhydride catalyst preparation |
WO2001052983A1 (en) * | 2000-01-20 | 2001-07-26 | E.I. Dupont De Nemours And Company | Vanadium-phosphorus oxide catalysts with promoter reagents |
DE10011309A1 (de) | 2000-03-10 | 2001-09-13 | Basf Ag | Verfahren zur Herstellung von Maleinsäreanhydrid |
DE10011307A1 (de) | 2000-03-10 | 2001-09-13 | Basf Ag | Katalysator und Verfahren zur Herstellung von Maleinsäureanhydrid |
DE10046072A1 (de) * | 2000-09-15 | 2002-03-28 | Basf Ag | Katalysator-Precursor für die Herstellung von Maleinsäureanhydrid |
WO2003006414A2 (en) * | 2001-07-12 | 2003-01-23 | Exxonmobil Chemical Patents Inc. | Producing maleic anhydride from a c4 stream in an oxygenate to olefin process |
AU2003222279C1 (en) * | 2002-03-11 | 2009-04-09 | Battelle Memorial Institute | Microchannel reactors with temperature control |
DE10211445A1 (de) | 2002-03-15 | 2003-10-02 | Basf Ag | Katalysator-Precursor für die Herstellung von Maleinsäureanhydrid und Verfahren zu dessen Herstellung |
DE10211446A1 (de) | 2002-03-15 | 2003-10-02 | Basf Ag | Verfahren zur Herstellung eines Vanadium, Phosphor und Sauerstoff enthaltenden Katalysators |
DE10235355A1 (de) | 2002-08-02 | 2004-02-19 | Basf Ag | Verfahren zur Herstellung von Maleinsäureanhydrid |
US7404936B2 (en) * | 2002-10-22 | 2008-07-29 | Velocys | Catalysts, in microchannel apparatus, and reactions using same |
DE10334582A1 (de) | 2003-07-28 | 2005-02-24 | Basf Ag | Verfahren zur Herstellung von Maleinsäureanhydrid |
TW200719968A (en) * | 2005-10-31 | 2007-06-01 | Sued Chemie Ag | Catalyst molding for partial oxidation reactions |
US7619099B2 (en) * | 2006-04-17 | 2009-11-17 | Scientific Design Company, Inc. | Reduction of acrylic acid in the production of maleic anhydride |
US20070270597A1 (en) * | 2006-05-18 | 2007-11-22 | Basf Aktiengesellschaft | Process for preparing maleic anhydride in a microchannel reactor |
DE102007025869A1 (de) | 2007-06-01 | 2008-07-03 | Basf Se | Verfahren der Wiederbeschickung der Reaktionsrohre eines Rohrbündelreaktors mit einem neuen Katalysatorfestbett |
JP5360834B2 (ja) * | 2008-03-25 | 2013-12-04 | バブコック日立株式会社 | 鉄化合物の影響を抑制した排ガス浄化触媒 |
US20110257414A1 (en) | 2008-12-22 | 2011-10-20 | Basf Se | Catalyst molded bodies and method for producing maleic acid anhydride |
CN102325592B (zh) | 2008-12-22 | 2014-12-10 | 巴斯夫欧洲公司 | 用于生产马来酸酐的催化剂及方法 |
US20120149919A1 (en) | 2009-08-26 | 2012-06-14 | Basf Se | Maleic anhydride synthesis catalyst precursor and process for its preparation |
DE102010040923A1 (de) | 2010-09-16 | 2012-03-22 | Basf Se | Verfahren zur Herstellung von Acrylsäure aus Ethanol und Formaldehyd |
DE102010040921A1 (de) | 2010-09-16 | 2012-03-22 | Basf Se | Verfahren zur Herstellung von Acrylsäure aus Methanol und Essigsäure |
DE102010052126A1 (de) | 2010-11-22 | 2012-05-24 | Süd-Chemie AG | Katalysatorformkörper für durchströmte Festbettreaktoren |
US8658557B2 (en) * | 2011-10-25 | 2014-02-25 | Ineos Usa Llc | Catalyst for n-butane oxidation to maleic anhydride |
US8785344B2 (en) | 2012-02-20 | 2014-07-22 | Basf Se | Gas phase oxidation catalyst with low charge transport activation energy |
CN103691467B (zh) * | 2012-09-27 | 2016-01-13 | 中国石油化工股份有限公司 | 一种催化剂及其制备方法和应用 |
DE102013008207A1 (de) | 2013-05-14 | 2014-11-20 | Basf Se | Verfahren zur Herstellung von Acrylsäure mit hoher Raum-Zeit-Ausbeute |
DE102013008206A1 (de) | 2013-05-14 | 2014-11-20 | Basf Se | Verfahren zur Herstellung von Vinylidencarbonsäure(ester)n durch Umsetzung von Formaldehyd mit Alkylcarbonsäure(estern)n |
US9073846B2 (en) | 2013-06-05 | 2015-07-07 | Celanese International Corporation | Integrated process for the production of acrylic acids and acrylates |
US9120743B2 (en) | 2013-06-27 | 2015-09-01 | Celanese International Corporation | Integrated process for the production of acrylic acids and acrylates |
DE102014004786B4 (de) * | 2014-04-02 | 2021-09-30 | Clariant International Ltd. | Alkalimetall-modifizierter Vanadium-Phosphor-Oxid (VPO)-Katalysator |
DE102017000865A1 (de) | 2017-01-31 | 2018-08-02 | Clariant Produkte (Deutschland) Gmbh | Synthese eines MoVNbTe-Katalysators mit erhöhter spezifischer Oberfläche und höherer Aktivität für die oxidative Dehyxdrierung von Ethan zu Ethylen |
DE102019100983A1 (de) | 2019-01-16 | 2020-07-16 | Clariant International Ltd | Verfahren zur herstellung eines vpo-katalysators |
IT201900013167A1 (it) | 2019-07-29 | 2021-01-29 | Polynt S P A | Letto catalitico multistrato per l'ossidazione parziale di n-butano ad anidride maleica. |
DE102019127789A1 (de) * | 2019-10-15 | 2021-04-15 | Clariant International Ltd. | Neues Katalysatorsystem für die Herstellung von Maleinsäureanhydrid durch katalytische Oxidation von n-Butan |
CN113842934B (zh) * | 2020-06-28 | 2023-07-21 | 中国石油化工股份有限公司 | 一种氧化催化剂及其制备方法与应用 |
CN114433151B (zh) * | 2020-10-31 | 2024-02-13 | 中国石油化工股份有限公司 | 一种钒磷氧催化剂及其制备方法和应用 |
CA3230756A1 (en) | 2021-09-14 | 2023-03-23 | Carlotta Cortelli | Catalyst for the partial oxidation of n-butane to maleic anhydride |
EP4357019A1 (de) | 2022-10-21 | 2024-04-24 | Clariant International Ltd | Vpo-katalysator mit verbesserter selektivität und stabilität sowie verfahren zu dessen herstellung |
WO2024084002A1 (en) | 2022-10-21 | 2024-04-25 | Clariant International Ltd | Mechanically stable vpo catalyst and process for the production thereof |
DE102022004204A1 (de) | 2022-11-12 | 2024-05-23 | Hans-Jürgen Eberle | Vefahren zur Herstellung von Maleinsäureanhydrid |
Family Cites Families (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA990305A (en) * | 1970-08-26 | 1976-06-01 | The Standard Oil Company | Manufacture of maleic anhydride from butane |
US3919257A (en) * | 1973-02-09 | 1975-11-11 | Standard Oil Co Ohio | Catalytic vapor phase oxidation of n-butene to maleic anhydride using two different catalysts maintained in two distinct and separate portions of the reaction zone |
US4071539A (en) * | 1974-05-28 | 1978-01-31 | Denka Chemical Corporation | Process for preparing maleic anhydride from C4 hydrocarbons |
US4110350A (en) * | 1974-10-22 | 1978-08-29 | Ube Industries, Ltd. | Catalytic oxidative process for producing maleic anhydride |
US4177161A (en) * | 1974-10-22 | 1979-12-04 | Ube Industries, Ltd. | Catalytic oxidative process for producing maleic anhydride |
US4043943A (en) * | 1974-11-06 | 1977-08-23 | Chevron Research Company | Process for producing a mixed oxide of vanadium and phosphorus having an improved intrinsic surface area |
US4056487A (en) * | 1975-10-02 | 1977-11-01 | Petro-Tex Chemical Corporation | Vanadium phosphorus oxygen oxidation catalysts useful for preparing anhydrides from alkanes |
GB1591307A (en) * | 1976-11-11 | 1981-06-17 | Ici Ltd | Production of maleic anhydride and catalysts therefor |
US4167516A (en) * | 1977-02-10 | 1979-09-11 | Denka Chemical Corporation | Preparation of dicarboxylic anhydrides |
US4202826A (en) * | 1977-02-10 | 1980-05-13 | Denka Chemical Corporation | Process for preparing anhydride from alkanes |
US4105586A (en) * | 1977-02-10 | 1978-08-08 | Denka Chemical Corporation | Oxidation catalysts and process for preparing anhydride from alkanes |
US4153577A (en) * | 1977-05-04 | 1979-05-08 | Denka Chemical Corporation | Oxidation catalysts and process for preparing anhydride from alkanes |
US4209423A (en) * | 1977-05-23 | 1980-06-24 | Imperial Chemical Industries Limited | Production of acid anhydrides and catalysts therefor |
US4172084A (en) * | 1977-05-31 | 1979-10-23 | Standard Oil Company | Production of maleic anhydride from four-carbon hydrocarbons using catalysts prepared by hydrothermal techniques |
US4151116A (en) * | 1977-08-05 | 1979-04-24 | Halcon Research And Development Corporation | Preparation of maleic anhydride |
EP0003431B1 (de) * | 1978-01-30 | 1984-04-11 | Imperial Chemical Industries Plc | Herstellung von Carbonsäureanhydriden und Katalysatoren hierfür |
US4222945A (en) * | 1978-01-30 | 1980-09-16 | Imperial Chemical Industries Limited | Production of maleic anhydride |
US4225465A (en) * | 1978-05-02 | 1980-09-30 | Standard Oil Company (Ohio) | Production of maleic anhydride from four-carbon hydrocarbons using catalysts prepared by hydrothermal techniques |
US4244878A (en) * | 1978-08-04 | 1981-01-13 | Halcon Research And Development Corporation | Preparation of maleic anhydride |
US4218382A (en) * | 1978-10-23 | 1980-08-19 | Standard Oil Company | Production of maleic anhydride from four-carbon hydrocarbons using catalysts prepared by water reflux techniques |
US4219484A (en) * | 1978-10-23 | 1980-08-26 | Standard Oil Company (Ohio) | Production of maleic anhydride from four-carbon hydrocarbons using catalysts prepared by water reflux techniques |
US4400522A (en) * | 1980-11-28 | 1983-08-23 | Standard Oil Company | Preparation of maleic anhydride |
US4448893A (en) * | 1981-07-24 | 1984-05-15 | The Standard Oil Company | Preparation of improved mixed vanadium phosphorus oxide catalyst and their use in oxidation processes |
US4396535A (en) * | 1981-11-12 | 1983-08-02 | The Standard Oil Company | Preparation of mixed vanadium phosphorus oxide catalysts and their use in oxidative processes |
US4465846A (en) * | 1981-11-12 | 1984-08-14 | The Standard Oil Company | Preparation of maleic anhydride |
US4748140A (en) * | 1981-12-28 | 1988-05-31 | The Standard Oil Company | In situ activation process for fluid bed oxidation catalysts |
US4416802A (en) * | 1982-05-26 | 1983-11-22 | Standard Oil Co. (Indiana) | Catalysts for the production of maleic anhydride by the oxidation of butane |
US4416803A (en) * | 1982-05-26 | 1983-11-22 | Standard Oil Company (Indiana) | Process for the manufacture of catalysts useful for the oxidation of butane to malelic anhydride |
US4418003A (en) * | 1982-05-26 | 1983-11-29 | Standard Oil Company (Indiana) | Catalysts for the production of maleic anhydride |
US4510259A (en) * | 1982-05-26 | 1985-04-09 | Standard Oil Company (Indiana) | Catalysts for the production of maleic anhydride by the oxidation of butane |
US4649205A (en) * | 1983-04-14 | 1987-03-10 | Standard Oil Company (Indiana) | Process for the manufacture of maleic anhydride utilizing catalysts reactivated with alkyl esters of orthophosphoric acid in the presence of water |
US4732885A (en) * | 1983-09-30 | 1988-03-22 | Amoco Corporation | Process for the preparation of catalysts useful for the manufacture of maleic anhydride |
US4596878A (en) * | 1983-12-14 | 1986-06-24 | Denka Chemical Corporation | Process for the production of maleic anhydride |
US4560674A (en) * | 1983-12-28 | 1985-12-24 | Monsanto Company | Catalysts for the production of maleic anhydride |
US5011945A (en) * | 1987-08-31 | 1991-04-30 | Amoco Corporation | Continuous process for the production of maleic anhydride |
US4855459A (en) * | 1988-01-19 | 1989-08-08 | Monsanto Company | Process for the production of maleic anhydride |
US4824819A (en) * | 1988-02-10 | 1989-04-25 | Amoco Corporation | Vanadium coated phosphorus-vandium oxide and phosphorus-vanadium oxide co-metal catalyst and process for the manufacture of maleic anhydride |
US4957894A (en) * | 1988-07-28 | 1990-09-18 | Amoco Corporation | Process for manufacture of maleic anhydride catalysts |
US5093298A (en) * | 1988-07-28 | 1992-03-03 | Amoco Corporation | Maleic anhydride catalysts |
US5019545A (en) * | 1988-07-28 | 1991-05-28 | Amoco Corporation | Process for manufacture of maleic anhydride catalysts |
US4996179A (en) * | 1989-01-17 | 1991-02-26 | Amoco Corporation | Maleic anhydride catalysts and process for their manufacture |
US4933312A (en) * | 1989-01-17 | 1990-06-12 | Amoco Corporation | Maleic anhydride catalysts and process for their manufacture |
US5095125A (en) * | 1989-01-17 | 1992-03-10 | Amoco Corporation | Maleic anhydride production |
US4965235A (en) * | 1989-05-15 | 1990-10-23 | Amoco Corporation | Maleic anhydride catalysts and process for their manufacture |
US4950769A (en) * | 1989-08-23 | 1990-08-21 | Amoco Corporation | Process for the manufacture of maleic anhydride utilizing peroxides to improve catalytic activity |
US5262548A (en) * | 1990-05-21 | 1993-11-16 | Scientific Design Company, Inc. | Phosphorous/vanadium oxidation catalyst |
US5070060A (en) * | 1990-05-21 | 1991-12-03 | Scientific Design Company, Inc. | Phosphorous/vanadium oxidation catalyst |
US5158923A (en) * | 1990-05-21 | 1992-10-27 | Scientific Design Company, Inc. | Phosphorous/vanadium oxidation catalyst |
US5137860A (en) * | 1991-06-27 | 1992-08-11 | Monsanto Company | Process for the transformation of vanadium/phosphorus mixed oxide catalyst precursors into active catalysts for the production of maleic anhydride |
FR2680702B1 (fr) * | 1991-09-03 | 1994-11-04 | Atochem | Nouveau systeme catalytique et son application a l'oxydeshydrogenation d'acides carboxyliques satures et l'oxydation d'aldehydes en acides. |
US5275996A (en) * | 1992-05-22 | 1994-01-04 | Monsanto Company | Phosphorous/vanadium oxide catalyst and process of preparation thereof |
US5280003A (en) * | 1992-08-24 | 1994-01-18 | Scientific Design Company, Inc. | Static condition process for the preparation of phosphorous/vanadium oxidation catalyst |
US5364824A (en) * | 1992-12-08 | 1994-11-15 | Huntsman Specialty Chemicals Corporation | Catalysis for the production of maleic anhydride containing vanadium-phosphorus oxide with selected promoter elements |
US5506187A (en) * | 1992-12-18 | 1996-04-09 | Amoco Corporation | Catalysts for the production of maleic anhydride by the oxidation of butane |
US5296436A (en) * | 1993-01-08 | 1994-03-22 | Scientific Design Company, Inc. | Phosphorous/vanadium oxidation catalyst |
US5543532A (en) * | 1994-03-31 | 1996-08-06 | E. I. Du Pont De Nemours And Company | Catalyst and method for vapor phase oxidation of alkane hydrocarbons |
US5641722A (en) * | 1994-09-15 | 1997-06-24 | Huntsman Petrochemical Corporation | High performance VPO catalyst and process of preparation thereof |
-
1995
- 1995-10-02 US US08/538,005 patent/US5945368A/en not_active Expired - Lifetime
-
1996
- 1996-09-24 WO PCT/US1996/015724 patent/WO1997012674A1/en active IP Right Grant
- 1996-09-24 EP EP96932357A patent/EP0876212B1/de not_active Expired - Lifetime
- 1996-09-24 DE DE69633869T patent/DE69633869T2/de not_active Expired - Lifetime
-
1997
- 1997-08-12 US US08/909,638 patent/US5929256A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5945368A (en) | 1999-08-31 |
US5929256A (en) | 1999-07-27 |
EP0876212B1 (de) | 2004-11-17 |
DE69633869T2 (de) | 2005-03-17 |
WO1997012674A1 (en) | 1997-04-10 |
EP0876212A1 (de) | 1998-11-11 |
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