ES2145471T3 - Procedimiento y dispositivo para la obtencion de poliisocianatos (ciclo)alifaticos que contienen grupos biuret. - Google Patents
Procedimiento y dispositivo para la obtencion de poliisocianatos (ciclo)alifaticos que contienen grupos biuret.Info
- Publication number
- ES2145471T3 ES2145471T3 ES96925694T ES96925694T ES2145471T3 ES 2145471 T3 ES2145471 T3 ES 2145471T3 ES 96925694 T ES96925694 T ES 96925694T ES 96925694 T ES96925694 T ES 96925694T ES 2145471 T3 ES2145471 T3 ES 2145471T3
- Authority
- ES
- Spain
- Prior art keywords
- cycle
- procedure
- obtaining
- aliphatic polyisocyanates
- biuret groups
- 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
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical group NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 229920001228 polyisocyanate Polymers 0.000 title abstract 2
- 239000005056 polyisocyanate Substances 0.000 title abstract 2
- 238000013019 agitation Methods 0.000 abstract 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/7806—Nitrogen containing -N-C=0 groups
- C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
- C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/18—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
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
-
- 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
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- 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
- B01J19/0053—Details of the reactor
- B01J19/006—Baffles
-
- 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
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- 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
- B01J19/18—Stationary reactors having moving elements inside
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
- C07C273/1854—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety
- C07C273/1863—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety from urea
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
- C07C273/1872—Preparation of compounds comprising a -N-C(O)-N-C(O)-N- moiety
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C275/46—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups containing any of the groups, X being a hetero atom, Y being any atom, e.g. acylureas
- C07C275/58—Y being a hetero atom
- C07C275/62—Y being a nitrogen atom, e.g. biuret
-
- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
-
- 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
- B01J2219/00761—Details of the reactor
- B01J2219/00763—Baffles
- B01J2219/00765—Baffles attached to the reactor wall
- B01J2219/00768—Baffles attached to the reactor wall vertical
-
- 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
- B01J2219/00761—Details of the reactor
- B01J2219/00763—Baffles
- B01J2219/00765—Baffles attached to the reactor wall
- B01J2219/00777—Baffles attached to the reactor wall horizontal
-
- 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
- B01J2219/00761—Details of the reactor
- B01J2219/00763—Baffles
- B01J2219/00779—Baffles attached to the stirring means
-
- 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
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/185—Details relating to the spatial orientation of the reactor vertical
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyurethanes Or Polyureas (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
ES UN PROCEDIMIENTO Y UN DISPOSITIVO PARA LA PREPARACION DE POLIISOCIANATOS QUE CONTIENEN COMO REACTIVOS GRUPOS BIURET (CICLO)ALIFATICOS A PARTIR DE DIISOCIANATOS (CICLO)ALIFATICOS Y VAPOR DE AGUA O UNA SUSTANCIA DESHIDRATANTE, SIENDO MEZCLADOS ENTRE SI EN UN REACTOR DE AGITACION, LOS REACTIVOS SON CONDUCIDOS EN CONTRACORRIENTE POR UN REACTOR DE AGITACION EN CASCADA QUE CONSTA DE AL MENOS DOS FASES. CON ELLO, SE INTENSIFICA LA DISTRIBUCION DEL REACTIVO GASEOSO EN EL REACTIVO LIQUIDO A TRAVES DE UNOS ELEMENTOS PERTURBADORES QUE HAY INSTALADOS EN EL REACTOR DE AGITACION. COMO ELEMENTOS PERTURBADORES SE UTILIZAN UNAS ARANDELAS PROVISTAS DE UNOS ORIFICIOS Y DISPUESTAS A DISTANCIA UNAS DE OTRAS Y/O LISTONES DE PERTURBACION QUE DISCURREN EN DIRECCION LONGITUDINAL DEL REACTOR DE AGITACION.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19525474A DE19525474A1 (de) | 1995-07-12 | 1995-07-12 | Verfahren und Vorrichtung zur Herstellung von (cyclo)aliphatische Biuretgruppen enthaltenden Polyisocyananten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2145471T3 true ES2145471T3 (es) | 2000-07-01 |
Family
ID=7766691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES96925694T Expired - Lifetime ES2145471T3 (es) | 1995-07-12 | 1996-07-09 | Procedimiento y dispositivo para la obtencion de poliisocianatos (ciclo)alifaticos que contienen grupos biuret. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6066759A (es) |
| EP (1) | EP0840722B1 (es) |
| JP (1) | JP4036271B2 (es) |
| KR (1) | KR100417358B1 (es) |
| CN (1) | CN1192730A (es) |
| CA (1) | CA2223641A1 (es) |
| DE (2) | DE19525474A1 (es) |
| ES (1) | ES2145471T3 (es) |
| WO (1) | WO1997003044A1 (es) |
| ZA (1) | ZA965880B (es) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19633404A1 (de) | 1996-08-19 | 1998-02-26 | Basf Ag | Verfahren zur Herstellung von Biuretgruppen enhaltenden Polyisocyanaten aus (cyclo)aliphatischen Diisocyanaten |
| DE19653079A1 (de) * | 1996-12-19 | 1998-06-25 | Basf Ag | Verfahren zur Gasphasenpolymerisation von C¶2¶-C¶8¶-Alk-1-enen mittels Ziegler -Natta- oder Metallocen-Katalysatorsystemen |
| DE19710112A1 (de) * | 1997-03-12 | 1998-09-17 | Henkel Kgaa | Verfahren zur kontinuierlichen Herstellung von Alkyl- und/oder Alkenyloligoglykosiden |
| DE60033270T2 (de) | 1999-07-16 | 2008-02-21 | Pohang Iron & Steel Co., Ltd., Pohang | Vorrichtung und apparatur zur messung des pegels von flüssigem metall beim elektromagnetischen stranggiessen |
| DE19938574A1 (de) * | 1999-08-17 | 2001-02-22 | Stockhausen Chem Fab Gmbh | Verfahren und Vorrichtung zur Entfernung von Sauerstoff aus wässrigen Monomerenlösungen |
| DE10025301A1 (de) | 2000-05-22 | 2001-11-29 | Bayer Ag | Verfahren zur Herstellung von Polyisocyanaten mit Biuretstruktur |
| ATE279949T1 (de) * | 2001-02-19 | 2004-11-15 | Basf Ag | Trocken-wirbelbettverfahren zur herstellung dünner absorbierender flächengebilde |
| BR0212992A (pt) * | 2001-09-21 | 2004-09-21 | Du Pont | Processo para a preparação de poliisocianatos, composição dos mesmos, composição de revestimento, substrato revestido e substrato automotivo |
| US20080064829A1 (en) * | 2002-09-20 | 2008-03-13 | Adams Jerome T | Preparation and use of biuret-containing polyisocyanates as cross-linking agents for coatings |
| WO2006063750A1 (de) * | 2004-12-13 | 2006-06-22 | Basf Aktiengesellschaft | Verfahren zur herstellung von farblosen, lagerstabilen biuretgruppenhaltigen polyisocyanaten |
| DE102004060120A1 (de) * | 2004-12-13 | 2006-06-14 | Basf Ag | Verfahren zur Herstellung von (cyclo)aliphatischen Polyisocyanaten |
| JP5316290B2 (ja) * | 2008-08-05 | 2013-10-16 | 三菱マテリアル株式会社 | トリクロロシラン製造装置及び製造方法 |
| JP5316291B2 (ja) | 2008-08-05 | 2013-10-16 | 三菱マテリアル株式会社 | トリクロロシラン製造装置及び製造方法 |
| DE102009038463A1 (de) * | 2009-08-21 | 2011-02-24 | Bayer Materialscience Ag | Verfahren zur Herstellung von Polyisocyanaten mit Biuretstruktur |
| KR200469030Y1 (ko) * | 2012-09-14 | 2013-09-12 | 엘에스산전 주식회사 | 차단기의 핸들 인터록 장치 |
| CN103709076B (zh) * | 2013-12-20 | 2015-09-16 | 万华化学集团股份有限公司 | 一种连续制备缩二脲多异氰酸酯的方法 |
| CN105348486A (zh) * | 2015-12-09 | 2016-02-24 | 青岛科技大学 | 一种水蒸汽法制备六亚甲基二异氰酸酯缩二脲的方法 |
| CN105622462B (zh) * | 2016-03-03 | 2017-09-19 | 万华化学集团股份有限公司 | 一种制备缩二脲多异氰酸酯的方法 |
| CN105664812A (zh) * | 2016-04-07 | 2016-06-15 | 江苏浩特隆搅拌设备有限公司 | 搪瓷釜挡板装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL279113A (es) * | 1962-05-30 | |||
| US3358010A (en) * | 1964-03-11 | 1967-12-12 | Mobay Chemical Corp | Biuret polyisocyanates |
| NO123123B (es) * | 1969-06-19 | 1971-09-27 | Dynamit Nobel Ag | |
| US4374093A (en) * | 1981-02-20 | 1983-02-15 | Mobil Oil Corporation | Continuous-stream upflow zeolite crystallization apparatus |
| US4438074A (en) * | 1981-07-21 | 1984-03-20 | Phillips Petroleum Company | Continuous polymerization reactor |
| DE3403277A1 (de) * | 1984-01-31 | 1985-08-01 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von polyisocyanaten mit biuretstruktur |
| FR2601007B1 (fr) * | 1986-07-04 | 1988-11-10 | Rhone Poulenc Chim Base | Procede de preparation de polyisocyanate a groupement biuret |
| FR2603278B1 (fr) * | 1986-09-03 | 1988-11-18 | Rhone Poulenc Chimie | Procede de preparation de polyisocyanate a groupement biuret |
| US5211924A (en) * | 1988-02-29 | 1993-05-18 | Amoco Corporation | Method and apparatus for increasing conversion efficiency and reducing power costs for oxidation of an aromatic alkyl to an aromatic carboxylic acid |
| US5102630A (en) * | 1988-03-17 | 1992-04-07 | Amoco Corporation | Apparatus for increasing yield and product quality while reducing power costs in oxidation of an aromatic alkyl to an aromatic carboxylic acid |
-
1995
- 1995-07-12 DE DE19525474A patent/DE19525474A1/de not_active Withdrawn
-
1996
- 1996-07-09 JP JP50550097A patent/JP4036271B2/ja not_active Expired - Lifetime
- 1996-07-09 CA CA002223641A patent/CA2223641A1/en not_active Abandoned
- 1996-07-09 KR KR10-1998-0700222A patent/KR100417358B1/ko not_active Expired - Fee Related
- 1996-07-09 US US08/981,636 patent/US6066759A/en not_active Expired - Lifetime
- 1996-07-09 WO PCT/EP1996/003003 patent/WO1997003044A1/de not_active Ceased
- 1996-07-09 DE DE59604897T patent/DE59604897D1/de not_active Expired - Lifetime
- 1996-07-09 ES ES96925694T patent/ES2145471T3/es not_active Expired - Lifetime
- 1996-07-09 CN CN96196193A patent/CN1192730A/zh active Pending
- 1996-07-09 EP EP96925694A patent/EP0840722B1/de not_active Expired - Lifetime
- 1996-07-11 ZA ZA9605880A patent/ZA965880B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1192730A (zh) | 1998-09-09 |
| DE19525474A1 (de) | 1997-01-16 |
| JP4036271B2 (ja) | 2008-01-23 |
| EP0840722B1 (de) | 2000-04-05 |
| CA2223641A1 (en) | 1997-01-30 |
| KR100417358B1 (ko) | 2004-03-19 |
| KR19990028920A (ko) | 1999-04-15 |
| ZA965880B (en) | 1998-01-12 |
| WO1997003044A1 (de) | 1997-01-30 |
| US6066759A (en) | 2000-05-23 |
| EP0840722A1 (de) | 1998-05-13 |
| JPH11508600A (ja) | 1999-07-27 |
| DE59604897D1 (de) | 2000-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2145471T3 (es) | Procedimiento y dispositivo para la obtencion de poliisocianatos (ciclo)alifaticos que contienen grupos biuret. | |
| ES2098255T5 (es) | Procedimiento y estructura para efectuar reacciones cataliticas en una estructura de destilacion. | |
| ES2140685T3 (es) | Sistema distribuidor de dos fases para reactores de flujo descendente. | |
| ES2161935T3 (es) | Uso de catalizadores soportados que contienen metal del grupo del platino para la obtencion de carbonatos de diarilo. | |
| KR850007906A (ko) | 수경식물 재배장치 | |
| ES2112889T3 (es) | Sistema de soporte. | |
| ES2143580T3 (es) | Haz de hilos huecos, asi como intercambiador de sustancias y/o calor. | |
| ES2069206T3 (es) | Estructura de destilacion catalitica. | |
| AR246089A1 (es) | Un producto de reaccion no gelificado de un poliepoxido y un material que contiene un hidrogeno activo que tiene por lo menos dos hidrogenos activos por molecula. | |
| ES2033744T3 (es) | Membrana combinada y procedimiento de sorcion para separar selectivamente iones. | |
| ES2070297T3 (es) | Sub-conjunto de distribucion de materia y de intercambio de calor y de materia para columna, principalmente de relleno, y columna provista de tal sub-conjunto. | |
| ES2039411T3 (es) | Empaquetadura de torre estructurada. | |
| ES2039511T3 (es) | Un secador de lecho fluidificado que comprende una placa de lecho y empleo de dicha placa en un secador de lecho fluidificado. | |
| ES2133157T3 (es) | Dispositivo de control de flujo para la supresion de torbellinos. | |
| ES2153193T3 (es) | Polvos polimeros redispersables en solucion acuosa. | |
| BR0012261A (pt) | Dispositivo e processo para a manufatura de peróxido de hidrogênio a partir de oxigênio e de hidrogênio, com um catalisador suspenso em fase aquosa | |
| ES2145958T3 (es) | Procedimiento continuo para la preparacion de 4-amino-2,2,6,6-tetrametilpiperidina. | |
| ES2139143T3 (es) | Gel micro-mesoporoso y procedimiento para su preparacion. | |
| ES2190017T3 (es) | Procedimiento para la preparacion de productos de adicion de oxidos de alquileno. | |
| AR246441A1 (es) | Distribuidor de dos niveles. | |
| ES8702691A1 (es) | Barra de combustible mejorada para un conjunto de combustible de reactor nuclear. | |
| ES2086146T3 (es) | Producto solido, que contiene grupos de alquilos metalicos quimicamente enlazados, y su empleo. | |
| ES8705056A1 (es) | Instalacion para el tratamiento de una banda textil movil en un bano de liquido | |
| ES2030402T3 (es) | Dispositivo y procedimiento para cultivar microorganismos inmovilizados. | |
| ES2100107B1 (es) | Grupo combustible para un reactor nuclear de agua hirviente. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
Ref document number: 840722 Country of ref document: ES |