ES8602595A1 - Procedimiento para la obtencion de nitrobenceno - Google Patents

Procedimiento para la obtencion de nitrobenceno

Info

Publication number
ES8602595A1
ES8602595A1 ES541320A ES541320A ES8602595A1 ES 8602595 A1 ES8602595 A1 ES 8602595A1 ES 541320 A ES541320 A ES 541320A ES 541320 A ES541320 A ES 541320A ES 8602595 A1 ES8602595 A1 ES 8602595A1
Authority
ES
Spain
Prior art keywords
h2so4
nitrobenzene
evapn
sepn
dil
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
Application number
ES541320A
Other languages
English (en)
Other versions
ES541320A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6230736&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8602595(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES541320A0 publication Critical patent/ES541320A0/es
Publication of ES8602595A1 publication Critical patent/ES8602595A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/88—Concentration of sulfuric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE NITROBENCENO. MEDIANTE NITRACION ISOTERMICA DE BENCENO CON UNA MEZCLA SO4H2/NO3H SEGUIDO DE SEPARACION DEL NITROBENCENO FORMADO, EVAPORACION, RECICLADO Y CONCENTRACION ENTRE EL 80 Y 90 % POR EVAPORACION EN VACIO A TEMPERATURA ENTRE 130 Y 195 C. LA EVAPORACION SE REALIZA EN VARIAS ETAPAS EN EVAPORADORES HORIZONTALES CONECTADOS EN SERIE, CONDENSANDOSE LOS VAPORES DE EVAPORACION POR ENFRIAMIENTO DIRECTO. DESPUES SE LIMPIAN DICHOS VAPORES CON VAPOR, RECICLANDOSE EL BENCENO Y EL NITROBENCENO A LA NITRACION DE BENCENO. EL SO4H2 DILUIDO O CONCENTRADO SE CALIENTA PREVIAMENTE EN UN INTERCAMBIADOR DE CALOR QUE SE ENJUAGA PERIODICAMENTE CON AGUA ELIMINANDOSE ASI LOS SULFATOS METALICOS QUE SE HAN CRISTALIZADO DEL ACIDO CONCENTRADO.
ES541320A 1984-03-16 1985-03-15 Procedimiento para la obtencion de nitrobenceno Expired ES8602595A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3409717A DE3409717C2 (de) 1984-03-16 1984-03-16 Verfahren zur Herstellung von Nitrobenzol

Publications (2)

Publication Number Publication Date
ES541320A0 ES541320A0 (es) 1985-12-01
ES8602595A1 true ES8602595A1 (es) 1985-12-01

Family

ID=6230736

Family Applications (1)

Application Number Title Priority Date Filing Date
ES541320A Expired ES8602595A1 (es) 1984-03-16 1985-03-15 Procedimiento para la obtencion de nitrobenceno

Country Status (7)

Country Link
US (1) US4772757A (es)
EP (1) EP0156199B2 (es)
JP (1) JPS60204749A (es)
BR (1) BR8501133A (es)
CA (1) CA1263873A (es)
DE (2) DE3409717C2 (es)
ES (1) ES8602595A1 (es)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632623A1 (de) * 1986-09-25 1988-03-31 Bayer Ag Verfahren zum aufkonzentrieren von schwefelsaeure
US5313009A (en) * 1990-01-04 1994-05-17 Nrm International Technologies C.V. Nitration process
US5099078A (en) * 1990-12-21 1992-03-24 Olin Corporation Process for preparing dinitrotoluene
DE4428460A1 (de) * 1994-08-11 1996-02-15 Bayer Ag Verfahren zur Herstellung von Nitroaromaten
DE19748886A1 (de) * 1997-11-05 1999-05-06 Basf Ag Verfahren und Vorrichtung zur Abkühlung einer kontinuierlich zulaufenden Flüssigkeit im Vakuum
DE10055359C1 (de) * 2000-11-08 2002-03-28 Bayer Ag Kontinuierliches isothermes Verfahren zur Herstellung von Mononitrotoluolen
DE10108979C1 (de) 2001-02-23 2002-05-08 Bayer Ag Kontinuierliches adiabatisches Verfahren zur Herstellung von Nitrochlorbenzol
DE10117207C1 (de) * 2001-04-06 2002-11-14 Bayer Ag Kontinuierliches isothermes Verfahren zur Herstellung von Mononitrotoluolen in Gegenwart von Phosphorsäure
DE102004038555B3 (de) * 2004-08-06 2005-08-04 Plinke Gmbh Modularer Mikroreaktor zur Nitrierung mit Mischsäure
DE102006022447A1 (de) * 2006-05-13 2007-11-15 Bayer Materialscience Ag Verfahren zur gekoppelten Herstellung von Chlor und Isocyanaten
EA017143B1 (ru) * 2007-06-27 2012-10-30 ЭйчАДи КОПЭРЕЙШН Система и способ получения нитробензола
US7491856B2 (en) 2007-06-27 2009-02-17 H R D Corporation Method of making alkylene glycols
US8304584B2 (en) 2007-06-27 2012-11-06 H R D Corporation Method of making alkylene glycols
DE102007059513A1 (de) 2007-12-11 2009-06-18 Bayer Materialscience Ag Verfahren zur Herstellung von Nitrobenzol durch adiabate Nitrierung
DE102009005324B4 (de) * 2009-01-16 2014-04-03 Plinke Gmbh Verfahren zur adiabatischen Nitrierung von Benzol
CN101538203B (zh) * 2009-04-08 2012-05-30 聊城大学 一种二氧化硅负载杂多酸铵催化合成一硝基苯的方法
WO2011082977A1 (de) * 2009-12-16 2011-07-14 Basf Se VERFAHREN ZUR AUFARBEITUNG VON NOx-HALTIGEN ABGASEN AUS ABWASSERSTRÖMEN VON NITRIERANLAGEN
PT2598474E (pt) 2010-07-30 2014-08-05 Bayer Ip Gmbh Processo para a produção contínua de nitrobenzeno
DE102011081898A1 (de) 2011-08-31 2013-02-28 Bayer Materialscience Aktiengesellschaft Verfahren zur kontinuierlichen Herstellung von Nitrobenzol
US9139508B2 (en) 2012-01-31 2015-09-22 Bayer Intellectual Property Gmbh Method and system for producing nitrobenzene
CN104507903B (zh) * 2012-07-27 2017-03-08 科思创德国股份有限公司 通过绝热硝化制备硝基苯的方法
KR102066763B1 (ko) * 2012-07-27 2020-01-15 코베스트로 도이칠란드 아게 단열 질화에 의한 니트로벤젠의 제조방법
EP2877443B1 (de) * 2012-07-27 2016-05-11 Covestro Deutschland AG Verfahren zur herstellung von nitrobenzol durch adiabate nitrierung
US9227909B2 (en) 2012-10-10 2016-01-05 Covestro Deutschland Ag Method for the continuous production of nitrobenzene
US9771290B2 (en) 2013-04-18 2017-09-26 Covestro Deutschland Ag Process for working up waste water from nitrobenzene preparation
KR102243717B1 (ko) 2013-04-18 2021-04-26 코베스트로 도이칠란트 아게 니트로벤젠 제조로부터의 폐수의 후처리 방법
CN106660934B (zh) 2014-06-24 2020-03-03 科思创德国股份有限公司 制备硝基苯的方法
PT3160630T (pt) 2014-06-24 2022-11-21 Covestro Intellectual Property Gmbh & Co Kg Processo para a produção de produtos químicos com interrupções do processo
PT3500553T (pt) 2016-08-17 2021-07-29 Covestro Deutschland Ag Processo para a produção de isocianato e pelo menos um outro produto químico num sistema de produção integrada
CN106316858B (zh) * 2016-08-24 2018-08-31 康乃尔化学工业股份有限公司 一种稀硝酸加热工艺及其装置
DE102017110084B4 (de) 2017-02-03 2019-07-04 Josef Meissner Gmbh & Co. Kg Verfahren und Anlage zur adiabatischen Nitrierung von Aromaten
CN110573491B (zh) 2017-03-07 2022-11-11 科思创德国股份有限公司 制备硝基苯的方法
WO2020011817A1 (de) 2018-07-12 2020-01-16 Covestro Deutschland Ag Verfahren zur herstellung von nitrobenzol durch adiabatisch betriebene nitrierung von benzol
CN109232272B (zh) * 2018-11-13 2024-01-05 淮安绿源化工科技有限公司 一种安全环保的芳香胺的生产系统和工艺
EP4244183A1 (en) * 2020-11-11 2023-09-20 Basf Se Process for concentrating diluted sulfuric acid

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2256999A (en) * 1939-03-08 1941-09-23 Du Pont Nitration of organic compounds
DE2242055C3 (de) * 1972-08-26 1979-05-31 Industrie Chemie Thoma Gmbh, 6000 Frankfurt Verfahren zur Konzentration und Reinigung von durch organische Substanzen verunreinigter Schwefelsäure
DE2360706C3 (de) * 1973-12-06 1980-10-16 Hoechst Ag, 6000 Frankfurt Verfahren zur Regeneration von Schwefelsäure
US3928475A (en) * 1974-08-09 1975-12-23 Du Pont Azeotropic nitration of benzene
DE2521891B2 (de) * 1975-05-16 1980-02-28 Bayer Ag, 5090 Leverkusen Verfahren zum Abstoppen von Nitrierungen durch Destillation
US4021498A (en) * 1975-12-09 1977-05-03 American Cyanamid Company Adiabatic process for nitration of nitratable aromatic compounds
US4091042A (en) * 1977-08-19 1978-05-23 American Cyanamid Company Continuous adiabatic process for the mononitration of benzene
DE2909029C2 (de) * 1979-03-08 1990-05-31 Schott Glaswerke, 6500 Mainz Verfahren zum Konzentrieren und Reinigen von Schwefelsäure
EP0022181B1 (de) * 1979-06-13 1983-10-12 Bayer Ag Verfahren und Vorrichtung zum Regenerieren von Schwefelsäure
EP0021210B1 (de) * 1979-06-13 1983-07-13 Bayer Ag Verdampfer zum Konzentrieren von Mineralsäure, insbesondere Schwefelsäure
US4367347A (en) * 1981-06-01 1983-01-04 Air Products And Chemicals, Inc. High purity 2,4-dinitrotoluene from toluene nitration process
US4496782A (en) * 1983-07-08 1985-01-29 Air Products And Chemicals, Inc. Nitric acid recovery by the adiabatic nitration of nitroaromatics with fortified spent acid

Also Published As

Publication number Publication date
ES541320A0 (es) 1985-12-01
EP0156199A1 (de) 1985-10-02
DE3409717C2 (de) 1994-03-31
US4772757A (en) 1988-09-20
EP0156199B1 (de) 1988-10-26
CA1263873A (en) 1989-12-12
EP0156199B2 (de) 1994-11-23
JPS60204749A (ja) 1985-10-16
DE3409717A1 (de) 1985-09-19
BR8501133A (pt) 1985-11-12
JPH0237908B2 (es) 1990-08-28
DE3565829D1 (en) 1988-12-01

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20001102