ES2159658T3 - Procedimiento y catalizador de hidrogenacion de alquinos. - Google Patents
Procedimiento y catalizador de hidrogenacion de alquinos.Info
- Publication number
- ES2159658T3 ES2159658T3 ES96106101T ES96106101T ES2159658T3 ES 2159658 T3 ES2159658 T3 ES 2159658T3 ES 96106101 T ES96106101 T ES 96106101T ES 96106101 T ES96106101 T ES 96106101T ES 2159658 T3 ES2159658 T3 ES 2159658T3
- Authority
- ES
- Spain
- Prior art keywords
- catalyst
- preferibly
- hydrogenation
- alkin
- procedure
- 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
-
- 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
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/58—Platinum group metals with alkali- or alkaline earth metals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
- C07C7/163—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound by hydrogenation
- C07C7/167—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound by hydrogenation for removal of compounds containing a triple carbon-to-carbon bond
-
- 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
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—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
- 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
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/66—Silver or gold
-
- 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
- B01J27/06—Halogens; Compounds thereof
- B01J27/08—Halides
- B01J27/12—Fluorides
-
- 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
- B01J27/06—Halogens; Compounds thereof
- B01J27/128—Halogens; Compounds thereof with iron group metals or platinum group metals
- B01J27/13—Platinum group metals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
- C07C5/08—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of carbon-to-carbon triple bonds
- C07C5/09—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of carbon-to-carbon triple bonds to carbon-to-carbon double bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
- C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
- C07C2521/04—Alumina
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
- C07C2521/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the alkali- or alkaline earth metals or beryllium
- C07C2523/04—Alkali metals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
- C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
- C07C2523/44—Palladium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
- C07C2523/48—Silver or gold
- C07C2523/50—Silver
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
- C07C2523/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36
- C07C2523/56—Platinum group metals
- C07C2523/58—Platinum group metals with alkali- or alkaline earth metals or beryllium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
- C07C2523/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36
- C07C2523/66—Silver or gold
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
UNA COMPOSICION DE CATALIZADOR QUE ABARCA PALADIO, AL MENOS UN METAL ALCALINO ENLAZADO QUIMICAMENTE (PREFERIBLEMENTE POTASIO), FLUOR ENLAZADO QUIMICAMENTE Y UN MATERIAL DE APOYO INORGANICO (PREFERIBLEMENTE ALUMINIO), SIENDO LA RELACION ATOMICA ENTRE EL FLUOR Y LOS METALES ALCALINOS DE ENTRE APROX. 1,3:1 Y APROX. 4:1. DE FORMA PREFERIBLE, LA PLATA TAMBIEN ESTA PRESENTE EN LA COMPOSICION CATALIZADORA. EL CATALIZADOR ANTES DESCRITO SE EMPLEA COMO CATALIZADOR EN LA HIDROGENACION SELECTIVA DE ALQUINOS C2-C10 (PREFERIBLEMENTE ACETILENO) HASTA OBTENER LOS ALQUENOS CORRESPONDIENTES, EN PRESENCIA DE IMPUREZAS DE SULFURO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/424,733 US5587348A (en) | 1995-04-19 | 1995-04-19 | Alkyne hydrogenation catalyst and process |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2159658T3 true ES2159658T3 (es) | 2001-10-16 |
Family
ID=23683665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96106101T Expired - Lifetime ES2159658T3 (es) | 1995-04-19 | 1996-04-18 | Procedimiento y catalizador de hidrogenacion de alquinos. |
Country Status (11)
Country | Link |
---|---|
US (2) | US5587348A (es) |
EP (1) | EP0738540B1 (es) |
JP (1) | JPH08290060A (es) |
KR (1) | KR100387206B1 (es) |
AR (1) | AR001620A1 (es) |
AU (1) | AU679873B2 (es) |
CA (1) | CA2168387C (es) |
DE (1) | DE69614748T2 (es) |
ES (1) | ES2159658T3 (es) |
MY (1) | MY115733A (es) |
SG (1) | SG46661A1 (es) |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6054409A (en) * | 1995-06-06 | 2000-04-25 | Institut Francais Du Petrole | Selective hydrogenation catalyst and a process using that catalyst |
US6096933A (en) * | 1996-02-01 | 2000-08-01 | Phillips Petroleum Company | Hydrocarbon hydrogenation and catalyst therefor |
AU692723B2 (en) * | 1996-02-01 | 1998-06-11 | Phillips Petroleum Company | Catalyst composition and process for selecting hydrogenation of diolefins |
US6127310A (en) * | 1997-02-27 | 2000-10-03 | Phillips Petroleum Company | Palladium containing hydrogenation catalysts |
WO1999017877A1 (en) * | 1997-10-02 | 1999-04-15 | Akzo Nobel N.V. | Treatment to improve the durability and selectivity of a hydrodechlorination catalyst and catalyst |
DE19840373A1 (de) | 1998-09-04 | 2000-03-09 | Basf Ag | Katalysator und Verfahren zur Selektivhydrierung ungesättigter Verbindungen in Kohlenwasserstoffströmen |
US6127588A (en) * | 1998-10-21 | 2000-10-03 | Phillips Petroleum Company | Hydrocarbon hydrogenation catalyst and process |
US6602920B2 (en) * | 1998-11-25 | 2003-08-05 | The Texas A&M University System | Method for converting natural gas to liquid hydrocarbons |
US6130260A (en) * | 1998-11-25 | 2000-10-10 | The Texas A&M University Systems | Method for converting natural gas to liquid hydrocarbons |
CA2371774A1 (en) * | 1999-02-18 | 2000-08-24 | Phillips Petroleum Company | Alkyne hydrogenation process |
EP1259319A4 (en) * | 1999-12-13 | 2004-12-01 | Conocophillips Co | CATALYST AND METHOD FOR HYDROGENATING HYDROCARBONS |
DE10048219A1 (de) * | 2000-02-10 | 2002-04-11 | Sued Chemie Ag | Katalysator für die Hydrierung von ungesättigten Kohlenwasserstoffen |
US6465391B1 (en) * | 2000-08-22 | 2002-10-15 | Phillips Petroleum Company | Selective hydrogenation catalyst and processes therefor and therewith |
CN1107708C (zh) * | 2000-10-17 | 2003-05-07 | 中国石油天然气股份有限公司兰州石化分公司 | 烃类物流中不饱和炔烃高选择性加氢催化剂 |
US6734130B2 (en) | 2001-09-07 | 2004-05-11 | Chvron Phillips Chemical Company Lp | Hydrocarbon hydrogenation catalyst composition, a process of treating such catalyst composition, and a process of using such catalyst composition |
US20030134744A1 (en) * | 2001-12-19 | 2003-07-17 | Sud-Chemie Inc. | Process for production and distribution of a prereduced selective hydrogenation catalyst |
US20030204120A1 (en) * | 2002-04-26 | 2003-10-30 | Bergmeister Joseph J. | Selective hydrogenation process |
US6949686B2 (en) | 2002-05-30 | 2005-09-27 | Equistar Chemicals, Lp | Pyrolysis gasoline stabilization |
MY137042A (en) * | 2002-06-14 | 2008-12-31 | Chevron Phillips Chemical Co | Hydrogenation palladium-silver catalyst and methods |
EP1597218A1 (en) * | 2003-02-18 | 2005-11-23 | Chevron Phillips Chemical Company | Acetylene hydrogenation catalyst with segregated palladium skin |
US20040260131A1 (en) * | 2003-06-23 | 2004-12-23 | Chevron Phillips Chemical Company ("Cpchem") | Selective hydrocarbon hydrogenation catalyst and process |
US7919431B2 (en) * | 2003-09-03 | 2011-04-05 | Synfuels International, Inc. | Catalyst formulation for hydrogenation |
US7045670B2 (en) * | 2003-09-03 | 2006-05-16 | Synfuels International, Inc. | Process for liquid phase hydrogenation |
US7199076B2 (en) * | 2003-12-19 | 2007-04-03 | Chevron Phillips Chemical Company Lp | Methods of making and using a selective hydrogenation catalyst |
US20060166816A1 (en) * | 2004-06-23 | 2006-07-27 | Catalytic Solutions, Inc. | Catalysts and processes for selective hydrogenation of acetylene and dienes in light olefin feedstreams |
US7521393B2 (en) * | 2004-07-27 | 2009-04-21 | Süd-Chemie Inc | Selective hydrogenation catalyst designed for raw gas feed streams |
US8013197B2 (en) * | 2005-02-18 | 2011-09-06 | Synfuels International, Inc. | Absorption and conversion of acetylenic compounds |
MX2008001232A (es) | 2005-07-27 | 2008-03-18 | Chevron Phillips Chemical Co | Un catalizador para hidrogenacion selectiva y los metodos para elaborar y utilizar el mismo. |
CA2650844C (en) * | 2006-04-28 | 2014-01-14 | Haldor Topsoe A/S | Process for the removal of hydrogen cyanide and formic acid from synthesis gas |
KR20110049820A (ko) * | 2008-07-31 | 2011-05-12 | 허니웰 인터내셔널 인코포레이티드 | 퍼플루오르화 시스-알켄 제조방법 |
WO2010069543A1 (en) | 2008-12-18 | 2010-06-24 | Saudi Basic Industries Corporation | Selective catalytic hydrogenation of alkynes to corresponding alkenes |
US20110028770A1 (en) | 2009-08-03 | 2011-02-03 | Honeywell International Inc. | Hydrogenation catalyst |
US20110054227A1 (en) * | 2009-08-26 | 2011-03-03 | Chevron Phillips Chemical Company Lp | Process to Protect Hydrogenation and Isomerization Catalysts Using a Guard Bed |
CN102188985B (zh) * | 2010-03-16 | 2013-03-27 | 中国石油化工股份有限公司 | 一种碳四馏份选择加氢催化剂及其制备方法 |
US8648225B2 (en) | 2010-04-12 | 2014-02-11 | Chevron Phillips Chemical Company Lp | Process for hydrogenating highly unsaturated hydrocarbons and catalyst therefor |
CN102060647B (zh) * | 2010-12-03 | 2013-04-24 | 中国石油天然气股份有限公司 | 一种碳二馏分选择加氢方法 |
CN102153436B (zh) * | 2011-02-22 | 2013-10-16 | 中国石油天然气股份有限公司 | 碳二馏分的加氢方法 |
US8822370B2 (en) * | 2011-05-16 | 2014-09-02 | Uop Llc | Substantially non-porous substrate supported noble metal-and lanthanide-containing catalysts |
CN105732281B (zh) * | 2014-12-12 | 2018-09-04 | 中国石油天然气股份有限公司 | 碳二馏分前脱丙烷前加氢方法 |
CN105732274B (zh) * | 2014-12-12 | 2018-09-04 | 中国石油天然气股份有限公司 | 乙烯选择加氢精制方法 |
CN105732263B (zh) * | 2014-12-12 | 2018-10-16 | 中国石油天然气股份有限公司 | 甲醇制烯烃装置中微量乙炔的选择加氢方法 |
US9758446B2 (en) | 2015-11-16 | 2017-09-12 | Chevron Phillips Chemical Company Lp | Selective hydrogenation using a flow index |
US10414989B2 (en) * | 2016-04-15 | 2019-09-17 | Baker Hughes, A Ge Company, Llc | Chemical process for sulfur reduction of hydrocarbons |
KR102156606B1 (ko) | 2016-05-23 | 2020-09-18 | 페트로차이나 컴퍼니 리미티드 | 팔라듐계 담지 수소화 촉매, 그의 제조 방법 및 응용 |
US10245583B1 (en) * | 2017-09-12 | 2019-04-02 | Chevron Phillips Chemical Company, Lp | Use of charge-containing molecules linked with covalent bonds to enhance acetylene hydrogenation catalysts |
WO2019115450A1 (en) * | 2017-12-11 | 2019-06-20 | Total Research & Technology Feluy | Purification of a gas stream for polyolefin synthesis |
US20240034699A1 (en) | 2022-07-28 | 2024-02-01 | Chevron Phillips Chemical Company, Lp | Flexible Benzene Production Via Selective-Higher-Olefin Oligomerization of Ethylene |
CN117920282A (zh) * | 2022-10-14 | 2024-04-26 | 中国石油化工股份有限公司 | 碱性中心在提高负载型钯催化剂的催化性能中的应用 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3325556A (en) * | 1964-05-18 | 1967-06-13 | Universal Oil Prod Co | Selective hydrogenation of acetylene in a mixture of acetylene and other unsaturated hydrocarbons |
US4009126A (en) * | 1974-02-19 | 1977-02-22 | Petro-Tex Chemical Corporation | Catalyst for removing acetylenic impurities |
US4644088A (en) * | 1974-02-19 | 1987-02-17 | Petro-Tex Chemical Corporation | Acetylene removal process |
US4658080A (en) * | 1974-02-19 | 1987-04-14 | Petro-Tex Chemical Corporation | Acetylene removal process |
FR2482953A1 (fr) * | 1980-05-22 | 1981-11-27 | Inst Francais Du Petrole | Procede d'hydrogenation selective d'une di-olefine dans un melange d'hydrocarbures renfermant au moins 4 atomes de carbone et contenant une olefine -a |
EP0053657B1 (en) * | 1980-12-09 | 1985-04-24 | Allied Corporation | Preparation of chlorotrifluoroethylene and trifluoroethylene |
US4404124A (en) * | 1981-05-06 | 1983-09-13 | Phillips Petroleum Company | Selective hydrogenation catalyst |
FR2619391B1 (fr) * | 1987-08-14 | 1990-01-12 | Eurecat Europ Retrait Catalys | Procede de reduction d'un catalyseur de raffinage avant sa mise en oeuvre |
FR2619319B1 (fr) * | 1987-08-14 | 1990-01-12 | Inst Francais Du Petrole | Catalyseur du type aluminosilicate renfermant au moins un metal noble et son utilisation en isomerisation d'une coupe c8 aromatique |
US4906601A (en) * | 1988-12-16 | 1990-03-06 | Exxon Research And Engineering Company | Small particle low fluoride content catalyst |
US4923588A (en) * | 1988-12-16 | 1990-05-08 | Exxon Research And Engineering Company | Wax isomerization using small particle low fluoride content catalysts |
FR2642670B1 (fr) * | 1989-02-07 | 1991-05-24 | Eurecat Europ Retrait Catalys | Procede de reduction d'un catalyseur de raffinage avant sa mise en oeuvr |
US5488024A (en) * | 1994-07-01 | 1996-01-30 | Phillips Petroleum Company | Selective acetylene hydrogenation |
US5475173A (en) * | 1994-07-19 | 1995-12-12 | Phillips Petroleum Company | Hydrogenation process and catalyst therefor |
US5583274A (en) * | 1995-01-20 | 1996-12-10 | Phillips Petroleum Company | Alkyne hydrogenation process |
-
1995
- 1995-04-19 US US08/424,733 patent/US5587348A/en not_active Expired - Lifetime
-
1996
- 1996-01-30 CA CA002168387A patent/CA2168387C/en not_active Expired - Lifetime
- 1996-04-02 AU AU50436/96A patent/AU679873B2/en not_active Ceased
- 1996-04-02 SG SG1996007527A patent/SG46661A1/en unknown
- 1996-04-12 AR AR33616396A patent/AR001620A1/es not_active Application Discontinuation
- 1996-04-12 JP JP8091393A patent/JPH08290060A/ja active Pending
- 1996-04-13 KR KR1019960011118A patent/KR100387206B1/ko not_active IP Right Cessation
- 1996-04-16 MY MYPI96001446A patent/MY115733A/en unknown
- 1996-04-18 EP EP96106101A patent/EP0738540B1/en not_active Expired - Lifetime
- 1996-04-18 ES ES96106101T patent/ES2159658T3/es not_active Expired - Lifetime
- 1996-04-18 DE DE69614748T patent/DE69614748T2/de not_active Expired - Lifetime
- 1996-07-23 US US08/685,120 patent/US5698752A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
MY115733A (en) | 2003-08-30 |
EP0738540B1 (en) | 2001-08-29 |
SG46661A1 (en) | 1998-02-20 |
KR100387206B1 (ko) | 2003-09-02 |
US5698752A (en) | 1997-12-16 |
AU679873B2 (en) | 1997-07-10 |
DE69614748T2 (de) | 2002-06-27 |
CA2168387A1 (en) | 1996-10-20 |
AU5043696A (en) | 1996-10-31 |
KR960037111A (ko) | 1996-11-19 |
EP0738540A1 (en) | 1996-10-23 |
DE69614748D1 (de) | 2001-10-04 |
US5587348A (en) | 1996-12-24 |
AR001620A1 (es) | 1997-11-26 |
CA2168387C (en) | 1999-07-13 |
JPH08290060A (ja) | 1996-11-05 |
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