BR9713703A - Processo para preparação de aminas aromáticas por hidrogenação em fase gasosa - Google Patents

Processo para preparação de aminas aromáticas por hidrogenação em fase gasosa

Info

Publication number
BR9713703A
BR9713703A BR9713703-0A BR9713703A BR9713703A BR 9713703 A BR9713703 A BR 9713703A BR 9713703 A BR9713703 A BR 9713703A BR 9713703 A BR9713703 A BR 9713703A
Authority
BR
Brazil
Prior art keywords
aromatic amines
hydrogenation
preparation
gas phase
nitroaromatic compounds
Prior art date
Application number
BR9713703-0A
Other languages
English (en)
Inventor
Reinhard Dr Langer
Hans-Josef Dr Buysch
Manfred Dr Gallus
Burkhard Dr Lachmann
D I Franz-Ulrich Von Gehlen
Original Assignee
Bayer Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of BR9713703A publication Critical patent/BR9713703A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
    • C07C209/32—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
    • C07C209/36—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst
    • 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
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/648—Vanadium, niobium or tantalum or polonium
    • B01J23/6482—Vanadium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO PARA PREPARAçãO DE AMINAS AROMáTICAS POR HIDROGENAçãO EM FASE GASOSA"<D>. A presente invenção refere-se a um processo para preparação de aminas aromáticas por hidrogenação catalítica de compostos nitroaromáticos correspondentes em fase gasosa em catalisadores de leito fixo, que contêm um ou mais metais dos grupos VIIa, Ib, IIb, IVa, Va, VIa e Vb do sistema periódico dos elementos (Mendeleiev) em um material de suporte cerâmico com uma superfície BET menor do que 40 m²/g, a proporções molares de hidrogênio para grupo nitro ou grupos nitro de 3:1 até 30:1, e temperaturas no leito catalisador de 180 até 500°C, caracterizado pelo fato de que a carga do catalisador em compostos nitroaromáticos empregados é elevada continuamente ou em etapas de 0,01 até 0,5 a 0,7 até 5,0 kg/l x h, sendo que a carga máxima é alcançada dentro de 10 até 1000 horas. O processo de acordo com a invenção pode ser realizado sem problemas em escala industrial e assegura-se um elevado rendimento espaço-tempo juntamente com uma produtividade aperfeiçoada dos catalisadores empregados.
BR9713703-0A 1996-12-12 1997-12-01 Processo para preparação de aminas aromáticas por hidrogenação em fase gasosa BR9713703A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19651688A DE19651688A1 (de) 1996-12-12 1996-12-12 Verfahren zur Herstellung von aromatischen Aminen durch Gasphasenhydrierung
PCT/EP1997/006730 WO1998025881A2 (de) 1996-12-12 1997-12-01 Verfahren zur herstellung von aromatischen aminen durch gasphasenhydrierung

Publications (1)

Publication Number Publication Date
BR9713703A true BR9713703A (pt) 2000-05-09

Family

ID=7814480

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9713703-0A BR9713703A (pt) 1996-12-12 1997-12-01 Processo para preparação de aminas aromáticas por hidrogenação em fase gasosa

Country Status (17)

Country Link
US (1) US6043394A (pt)
EP (1) EP0944578B1 (pt)
JP (1) JP4108132B2 (pt)
KR (1) KR100530553B1 (pt)
CN (1) CN1128784C (pt)
AU (1) AU5658298A (pt)
BG (1) BG64123B1 (pt)
BR (1) BR9713703A (pt)
CZ (1) CZ211199A3 (pt)
DE (2) DE19651688A1 (pt)
ES (1) ES2182144T3 (pt)
HU (1) HU224698B1 (pt)
PL (1) PL188179B1 (pt)
PT (1) PT944578E (pt)
RU (1) RU2200150C2 (pt)
TW (1) TW436473B (pt)
WO (1) WO1998025881A2 (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005143A (en) * 1998-08-07 1999-12-21 Air Products And Chemicals, Inc. Use of a monolith catalyst for the hydrogenation of dinitrotoluene to toluenediamine
DE10061016A1 (de) * 2000-12-08 2002-07-04 Degussa Aluminiumoxid-Germaniumdioxid-Siliziumdioxid-Mischoxid
US6521791B1 (en) * 2001-11-09 2003-02-18 Air Products And Chemicals, Inc. Process for regenerating a monolith hydrogenation catalytic reactor
JP4260531B2 (ja) * 2002-04-26 2009-04-30 住友精化株式会社 硫化水素の製造方法
WO2005003078A1 (fr) * 2003-07-04 2005-01-13 Shi, Guangqiang Procede de preparation de 4-aminodiphenylamine
US8486223B2 (en) * 2003-07-04 2013-07-16 Jiangsu Sinorgchem Technology Co., Ltd. Falling film evaporator
CA2531074C (en) * 2003-07-04 2011-10-11 Shi, Guangqiang Process for preparing 4-aminodiphenylamine
US8686188B2 (en) 2003-07-04 2014-04-01 Jiangsu Sinorgchem Technology Co., Ltd. Process for preparing 4-aminodiphenylamine
DE10347439A1 (de) * 2003-10-13 2005-05-04 Bayer Materialscience Ag Verfahren zur Herstellung von aromatischen Aminen durch heterogen katalysierte Hydrierung
DE102009019436A1 (de) 2009-04-29 2010-11-04 Bayer Materialscience Ag Verfahren zur Herstellung von aromatischen Aminen
CN102259029B (zh) 2010-05-24 2014-12-10 江苏圣奥化学科技有限公司 固体碱催化剂
EP2598241B1 (de) 2010-07-30 2014-05-14 Bayer Intellectual Property GmbH Verfahren zur wiederherstellung von katalysatoraktivität
US9139510B2 (en) 2011-01-11 2015-09-22 Bayer Intellectual Property Gmbh Process for preparing aromatic amines
DE102011081897A1 (de) * 2011-08-31 2013-02-28 Bayer Materialscience Aktiengesellschaft Katalysator und Verfahren zur Herstellung von aromatischen Aminen in der Gasphase
EP2641892A1 (de) 2012-03-23 2013-09-25 Bayer MaterialScience AG Verfahren zur Reinigung von Anilin aus Gasphasenhydrierungen
EP2653462A1 (de) * 2012-04-16 2013-10-23 Bayer MaterialScience AG Verfahren zum verbesserten Anfahren der Reaktion bei der Herstellung von aromatischen Aminen aus Nitroaromaten
EP2653461A1 (de) 2012-04-16 2013-10-23 Bayer MaterialScience AG Verfahren zum verbesserten Abfahren der Reaktion bei der Herstellung von aromatischen Aminen aus Nitroaromaten
CN104302617A (zh) 2012-05-04 2015-01-21 拜耳材料科技股份有限公司 处理包含芳香胺的物质混合物,特别是粗制苯胺的物质混合物的方法
CN106458842B (zh) 2014-06-24 2020-02-11 科思创德国股份有限公司 具有运行中断的用于制备化学产物的方法
US10618871B2 (en) 2016-08-17 2020-04-14 Covestro Deutschland Ag Process for producing isocyanate and at least one further chemical product in an integrated production
CN114286812B (zh) 2019-08-30 2024-07-26 科思创德国股份有限公司 氢化芳族硝基化合物的方法
WO2025244748A1 (en) 2024-05-23 2025-11-27 Covestro Llc Method for recovering o-aminophenol

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135155A1 (de) * 1971-07-14 1973-02-22 Bayer Ag Katalysator zur reduktion von nitroverbindungen
DE2244401A1 (de) * 1972-09-09 1974-05-16 Bayer Ag Katalysator und verwendung des katalysators zur reduktion von nitrobenzol
BE793860A (fr) * 1972-03-23 1973-07-10 Bayer Ag Catalyseur utilisable notamment pour la reduction de nitrobenzene
DE2849002A1 (de) * 1978-11-11 1980-05-22 Bayer Ag Verfahren zur katalytischen hydrierung von nitrobenzol
PL134577B1 (en) * 1982-04-27 1985-08-31 Instytut Chemii Przemyslowej Catalyst for manufacture of aromatic monoamines
DE4039026A1 (de) * 1990-12-07 1992-06-11 Bayer Ag Verfahren zur herstellung von anilin

Also Published As

Publication number Publication date
HUP0000541A2 (en) 2000-07-28
JP2001505893A (ja) 2001-05-08
PL333927A1 (en) 2000-01-31
RU2200150C2 (ru) 2003-03-10
AU5658298A (en) 1998-07-03
BG64123B1 (bg) 2004-01-30
CN1128784C (zh) 2003-11-26
WO1998025881A3 (de) 1998-07-30
EP0944578B1 (de) 2002-09-04
CZ211199A3 (cs) 1999-11-17
US6043394A (en) 2000-03-28
EP0944578A2 (de) 1999-09-29
ES2182144T3 (es) 2003-03-01
TW436473B (en) 2001-05-28
KR20000069430A (ko) 2000-11-25
PL188179B1 (pl) 2004-12-31
JP4108132B2 (ja) 2008-06-25
HU224698B1 (en) 2006-01-30
DE19651688A1 (de) 1998-06-18
WO1998025881A2 (de) 1998-06-18
PT944578E (pt) 2002-12-31
KR100530553B1 (ko) 2005-11-23
BG103473A (en) 2000-03-31
DE59708143D1 (de) 2002-10-10
HK1024467A1 (en) 2000-10-13
CN1239945A (zh) 1999-12-29
HUP0000541A3 (en) 2000-11-28

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 01/12/1997, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)