ES2045299T3 - Recuperacion catalitica de metales a partir de soluciones organicas nopolaares. - Google Patents
Recuperacion catalitica de metales a partir de soluciones organicas nopolaares.Info
- Publication number
- ES2045299T3 ES2045299T3 ES89114940T ES89114940T ES2045299T3 ES 2045299 T3 ES2045299 T3 ES 2045299T3 ES 89114940 T ES89114940 T ES 89114940T ES 89114940 T ES89114940 T ES 89114940T ES 2045299 T3 ES2045299 T3 ES 2045299T3
- Authority
- ES
- Spain
- Prior art keywords
- polar
- solvent
- nopolaar
- metals
- organic solution
- 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
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G55/00—Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
- B01J31/2409—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring with more than one complexing phosphine-P atom
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
- B01J31/2409—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring with more than one complexing phosphine-P atom
- B01J31/2414—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring with more than one complexing phosphine-P atom comprising aliphatic or saturated rings
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/40—Regeneration or reactivation
- B01J31/4015—Regeneration or reactivation of catalysts containing metals
- B01J31/4023—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper
- B01J31/4038—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper containing noble metals
- B01J31/4046—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper containing noble metals containing rhodium
-
- 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
- B01J38/00—Regeneration or reactivation of catalysts, in general
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/49—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide
- C07C45/50—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide by oxo-reactions
-
- 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
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
- B01J2231/32—Addition reactions to C=C or C-C triple bonds
- B01J2231/321—Hydroformylation, metalformylation, carbonylation or hydroaminomethylation
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/82—Metals of the platinum group
- B01J2531/822—Rhodium
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/90—Catalytic systems characterized by the solvent or solvent system used
- B01J2531/96—Water
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0201—Oxygen-containing compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
- Extraction Or Liquid Replacement (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
UN METODO PARA RECUPERAR UN METAL DE TRANSICION, POR EJEMPLO RODIO, DE UNA DISOLUCION ORGANICA NO POLAR, QUE CONTIENE COMPLEJO DE COORDINACION DEL METAL DE TRANSICION SOLUBLE EN DISOLVENTE ORGANICO NO POLAR E INSOLUBLE EN DISOLVENTE POLAR, Y UN LIGANDO SOLUBLE EN DISOLVENTE ORGANICO NO POLAR E INSOLUBLE EN DISOLVENTE POLAR, POR EJEMPLO UN LIGANDO ORGANOFOSFORO, POR CONTACTO DE LA DISOLUCION ORGANICA NO POLAR CON UNA DISOLUCION POLAR DE UN LIGANDO DE ORGANOFOSFINA IONICO. LUEGO, EL METAL DE TRANSICION SE PUEDE DEVOLVER A UNA DISOLUCION ORGANICA NO POLAR PARA REUTILIZACION. EN UNA INCORPORACION, EL RODIO SE HACE ADAPTABLE A REEXTRACCION POR TRATAMIENTO DE LA DISOLUCION POLAR CON UN REACTIVO ACONDICIONADOR ADECUADO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/231,508 US4935550A (en) | 1988-08-12 | 1988-08-12 | Catalytic metal recovery from non-polar organic solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2045299T3 true ES2045299T3 (es) | 1994-01-16 |
Family
ID=22869530
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES89114940T Expired - Lifetime ES2045299T3 (es) | 1988-08-12 | 1989-08-11 | Recuperacion catalitica de metales a partir de soluciones organicas nopolaares. |
ES92107803T Expired - Lifetime ES2050550T3 (es) | 1988-08-12 | 1989-08-11 | Recuperacion de metales cataliticos a partir de disoluciones organicas polares. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92107803T Expired - Lifetime ES2050550T3 (es) | 1988-08-12 | 1989-08-11 | Recuperacion de metales cataliticos a partir de disoluciones organicas polares. |
Country Status (12)
Country | Link |
---|---|
US (1) | US4935550A (es) |
EP (2) | EP0354588B1 (es) |
JP (1) | JPH0791068B2 (es) |
KR (1) | KR940004627B1 (es) |
CN (1) | CN1021656C (es) |
AU (1) | AU621924B2 (es) |
BR (1) | BR8904055A (es) |
DE (2) | DE68910749T2 (es) |
ES (2) | ES2045299T3 (es) |
MX (1) | MX164462B (es) |
PL (1) | PL162639B1 (es) |
SU (1) | SU1757459A3 (es) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5099047A (en) * | 1989-11-17 | 1992-03-24 | Mitsubishi Kasei Corporation | Method for recovering a group viii metal solid complex and hydroformylation method |
US5215667A (en) * | 1991-08-20 | 1993-06-01 | Exxon Chemical Patents Inc. | Method for separating water soluble noble metal catalyst from a noble metal catalyzed hydroformylation reaction |
US5288818A (en) * | 1991-08-20 | 1994-02-22 | Exxon Chemical Patents Inc. | Method for separating a water soluble noble metal catalyst from a noble metal catalyzed hydroformylation reaction |
US5208194A (en) * | 1992-02-25 | 1993-05-04 | Arco Chemical Technology, L.P. | Recovery of group VIII transition metals from organic solutions using acidic ion-exchange resins |
DE4228724A1 (de) * | 1992-08-28 | 1994-03-03 | Hoechst Ag | Verfahren zur Wiedergewinnung von Rhodium aus den Destillationsrückständen von Produkten der Oxosynthese |
US5395979A (en) * | 1993-02-25 | 1995-03-07 | Exxon Chemical Patents Inc. | Method for separating catalyst from a hydroformylation reaction product using alkylated ligands |
US5290743A (en) * | 1993-03-22 | 1994-03-01 | Arco Chemical Technology L.P. | Process for regenerating a deactivated rhodium hydroformylation catalyst system |
US5424467A (en) * | 1993-07-14 | 1995-06-13 | Idaho Research Foundation | Method for purifying alcohol esters |
US5674950A (en) * | 1994-03-07 | 1997-10-07 | Exxon Chemical Patents Inc. | Polymers having terminal hydroxyl aldehyde, or alkylamino substitutents and derivatives thereof |
US5691422A (en) * | 1994-03-07 | 1997-11-25 | Exxon Chemical Patents Inc. | Saturated polyolefins having terminal aldehyde or hydroxy substituents and derivatives thereof |
TW319771B (es) * | 1994-04-05 | 1997-11-11 | Mitsubishi Chem Corp | |
DE19619527A1 (de) * | 1996-05-15 | 1997-11-20 | Hoechst Ag | Katalysatorsysteme auf der Basis von Rhodium-Komplexverbindungen mit Diphosphin-Liganden und ihre Verwendung bei der Herstellung von Aldehyden |
US5773665A (en) * | 1996-07-01 | 1998-06-30 | Elf Atochem North America, Inc. | Hydroformylation process with separation and recycle of active rhodium catalyst |
FR2743010B1 (fr) * | 1995-12-29 | 1998-02-20 | Rhone Poulenc Fibres | Procede de preparation par hydrogenation de catalyseurs a base de metal de transition et de phosphine |
DE19609337C2 (de) * | 1996-03-11 | 1998-11-19 | Hoechst Ag | Verfahren zur Herstellung von Aldehyden mittels eines Rhodium und substituierte Diphenyldiphosphane enthaltenden Katalysatorsystems |
CZ283697A3 (cs) * | 1996-09-11 | 1998-04-15 | Mitsubishi Chemical Corporation | Způsob přípravy roztoku komplexu rhodia a jeho použití |
EP0985449A1 (en) * | 1998-09-11 | 2000-03-15 | Dsm N.V. | Process to separate rhodium from an organic mixture |
EP1172143A1 (en) * | 2000-07-14 | 2002-01-16 | Dsm N.V. | Process for the recovery of rhodium |
DE10213020A1 (de) * | 2002-03-22 | 2003-10-02 | Ge Bayer Silicones Gmbh & Co | Organopolysiloxane-enthaltende Zusammensetzung, Verfahren zu ihrer Herstellung und deren Verwendung |
KR100615399B1 (ko) * | 2002-08-29 | 2006-08-25 | 주식회사 우영 | 직하발광형 평면광원 |
BRPI0710853A2 (pt) * | 2006-05-15 | 2011-05-17 | Dow Global Technologies Inc | processo de hidroformilação não aquoso |
US20080108986A1 (en) * | 2006-08-28 | 2008-05-08 | Nanette Meneses | Apparatus and methods for relief of abdominal discomfort |
US8715388B2 (en) | 2011-04-29 | 2014-05-06 | Momentive Performance Materials | Process of precious metal recovery and color removal from an organosilicon product-containing liquid reaction medium |
SG11201405863QA (en) | 2012-04-12 | 2014-11-27 | Basf Se | Method for replenishing the catalyst in continuous hydroformylation |
CN103540749B (zh) * | 2013-09-24 | 2015-04-15 | 宁波大地化工环保有限公司 | 一种从辛酸铑有机废液中回收铑的方法 |
GB201410883D0 (en) | 2014-06-18 | 2014-07-30 | Johnson Matthey Plc And Anglo American Platinum Ltd | Interseparation of metals |
CN104028311B (zh) * | 2014-07-02 | 2016-06-15 | 天津渤化永利化工股份有限公司 | 一种丁辛醇羰基合成催化剂化学再生方法 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1007026B (it) * | 1974-01-23 | 1976-10-30 | Montedison Spa | Procedimento per il ricupero di sistemi catalitici da grezzi di idroformilazione |
US4248802A (en) * | 1975-06-20 | 1981-02-03 | Rhone-Poulenc Industries | Catalytic hydroformylation of olefins |
EP0007768A3 (en) * | 1978-07-27 | 1980-02-20 | DAVY McKEE (LONDON) LIMITED | Hydroformylation of alpha-olefinic compounds |
DE2833469C2 (de) * | 1978-07-29 | 1986-10-09 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Aufarbeitung von Reaktionsgemischen, die bei der Hydroformylierung oder der Carbonylierung anfallen |
US4297239A (en) * | 1979-07-16 | 1981-10-27 | Union Carbide Corporation | Hydroformylation catalyst reactivation |
US4283304A (en) * | 1979-05-21 | 1981-08-11 | Union Carbide Corporation | Process for removing triorganophosphine from a liquid composition |
US4292196A (en) * | 1979-12-10 | 1981-09-29 | Uop Inc. | Catalyst recovery |
US4374278A (en) * | 1980-02-28 | 1983-02-15 | Union Carbide Corporation | Hydroformylation catalyst reactivation |
GB2085874B (en) * | 1980-09-04 | 1984-08-08 | Johnson Matthey Plc | Hydroformylation of olefins |
JPS5850234B2 (ja) * | 1980-10-23 | 1983-11-09 | 三菱化学株式会社 | 第8族貴金属固体錯体の取得方法 |
GB2092097B (en) * | 1981-01-12 | 1985-06-19 | Armfield Engineering Ltd | Inspection machine |
JPS5923858B2 (ja) * | 1981-01-22 | 1984-06-05 | 三菱化学株式会社 | ロジウム錯体の取得方法 |
US4364907A (en) * | 1981-06-18 | 1982-12-21 | Eastman Kodak Company | Process for recovery of rhodium values |
DE3235029A1 (de) * | 1982-09-22 | 1984-03-22 | Ruhrchemie Ag, 4200 Oberhausen | Verfahren zur rueckgewinnung von wasserloeslichen, rhodium enthaltenden hydroformylierungskatalysatoren |
JPS59109245A (ja) * | 1982-12-15 | 1984-06-23 | Daicel Chem Ind Ltd | ヒドロホルミル化触媒の処理法 |
DE3347406A1 (de) * | 1983-12-29 | 1985-07-11 | Ruhrchemie Ag, 4200 Oberhausen | Verfahren zur abtrennung und wiedergewinnung von rhodium aus den produkten der oxosynthese |
DE3411034A1 (de) * | 1984-03-26 | 1985-09-26 | Ruhrchemie Ag, 4200 Oberhausen | Verfahren zur rueckgewinnung von rhodium aus reaktionsprodukten der oxosynthese |
US4731485A (en) * | 1984-04-03 | 1988-03-15 | Ruhrchemie Aktiengesellschaft | Process for hydroformylation with rhodium catalysts and the separation of rhodium therefrom |
DE3443474A1 (de) * | 1984-11-29 | 1986-05-28 | Ruhrchemie Ag, 4200 Oberhausen | Verfahren zur rueckgewinnung von rhodium aus reaktionsprodukten der oxosynthese |
DE3534314A1 (de) * | 1985-09-26 | 1987-04-02 | Ruhrchemie Ag | Verfahren zur herstellung von aldehyden |
US4633021A (en) * | 1985-11-29 | 1986-12-30 | National Distillers And Chemical Corporation | Olefin hydroformylation |
US4716250A (en) * | 1986-07-10 | 1987-12-29 | Union Carbide Corporation | Hydroformylation using low volatile/organic soluble phosphine ligands |
-
1988
- 1988-08-12 US US07/231,508 patent/US4935550A/en not_active Expired - Lifetime
-
1989
- 1989-08-11 DE DE89114940T patent/DE68910749T2/de not_active Revoked
- 1989-08-11 ES ES89114940T patent/ES2045299T3/es not_active Expired - Lifetime
- 1989-08-11 MX MX17174A patent/MX164462B/es unknown
- 1989-08-11 AU AU39525/89A patent/AU621924B2/en not_active Ceased
- 1989-08-11 PL PL28102289A patent/PL162639B1/pl unknown
- 1989-08-11 EP EP89114940A patent/EP0354588B1/en not_active Revoked
- 1989-08-11 DE DE68913999T patent/DE68913999T2/de not_active Expired - Lifetime
- 1989-08-11 EP EP92107803A patent/EP0500150B1/en not_active Expired - Lifetime
- 1989-08-11 BR BR898904055A patent/BR8904055A/pt unknown
- 1989-08-11 ES ES92107803T patent/ES2050550T3/es not_active Expired - Lifetime
- 1989-08-11 CN CN89107595A patent/CN1021656C/zh not_active Expired - Fee Related
- 1989-08-11 KR KR1019890011423A patent/KR940004627B1/ko not_active IP Right Cessation
- 1989-08-11 SU SU894742043A patent/SU1757459A3/ru active
- 1989-08-14 JP JP1208026A patent/JPH0791068B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
MX164462B (es) | 1992-08-18 |
SU1757459A3 (ru) | 1992-08-23 |
KR910004825A (ko) | 1991-03-29 |
DE68913999T2 (de) | 1994-07-28 |
AU621924B2 (en) | 1992-03-26 |
EP0354588A1 (en) | 1990-02-14 |
EP0500150B1 (en) | 1994-03-16 |
AU3952589A (en) | 1990-02-15 |
DE68910749D1 (de) | 1993-12-23 |
DE68913999D1 (de) | 1994-04-21 |
CN1021656C (zh) | 1993-07-21 |
US4935550A (en) | 1990-06-19 |
JPH0791068B2 (ja) | 1995-10-04 |
BR8904055A (pt) | 1990-03-20 |
CN1040825A (zh) | 1990-03-28 |
DE68910749T2 (de) | 1994-05-05 |
ES2050550T3 (es) | 1994-05-16 |
JPH02145439A (ja) | 1990-06-04 |
EP0354588B1 (en) | 1993-11-18 |
PL162639B1 (en) | 1993-12-31 |
KR940004627B1 (ko) | 1994-05-27 |
EP0500150A1 (en) | 1992-08-26 |
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