ES2123190T3 - Procedimiento para la fabricacion de dinitrotolueno. - Google Patents

Procedimiento para la fabricacion de dinitrotolueno.

Info

Publication number
ES2123190T3
ES2123190T3 ES95111991T ES95111991T ES2123190T3 ES 2123190 T3 ES2123190 T3 ES 2123190T3 ES 95111991 T ES95111991 T ES 95111991T ES 95111991 T ES95111991 T ES 95111991T ES 2123190 T3 ES2123190 T3 ES 2123190T3
Authority
ES
Spain
Prior art keywords
acid
reaction
phase
mixture
toluol
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
Application number
ES95111991T
Other languages
English (en)
Inventor
Uwe Klingler
Thomas Dr Schieb
Dietmar Wastian
Gerhard Dr Wiechers
Jurgen Dr Zimmermann
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
Application filed by Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of ES2123190T3 publication Critical patent/ES2123190T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/06—Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to carbon atoms of six-membered aromatic rings
    • 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

Abstract

LA INVENCION SE REFIERE A UN PROCESO PARA LA ELABORACION DE DINITROTOLUOL A PARTIR DE TOLUOL Y ACIDO SULFONITRICO, DONDE A TRAVES DE REACCION ENTRE ACIDO NITRICO Y TOLUOL BAJO AJUSTE DE UNA RELACION MOLAR DE AL MENOS 1,5:1 EN UN REACTOR ACCIONADO DE FORMA ADIABATICA CONTINUA, SE OBTIENE UNA MEZCLA QUE SE COMPONE AL MENOS DEL 5 % DE MONONITROTOLUOL. LA MEZCLA SE LIBERA DE FORMA DESTILATIVA DESPUES DE LA REACCION DE AL MENOS 5 % DE AGUA, Y SE SEPARA EN UNA FASE DE PRODUCTO SUPERIOR Y UNA FASE ACIDA INFERIOR. LA FASE ACIDA SE GUIA DE NUEVO A LA REACCION DESPUES DE LA ADICION DE ACIDO NITRICO ALTAMENTE CONCENTRADO.
ES95111991T 1994-08-11 1995-07-31 Procedimiento para la fabricacion de dinitrotolueno. Expired - Lifetime ES2123190T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4428461A DE4428461A1 (de) 1994-08-11 1994-08-11 Verfahren zur Herstellung von Dinitrotoluol

Publications (1)

Publication Number Publication Date
ES2123190T3 true ES2123190T3 (es) 1999-01-01

Family

ID=6525454

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95111991T Expired - Lifetime ES2123190T3 (es) 1994-08-11 1995-07-31 Procedimiento para la fabricacion de dinitrotolueno.

Country Status (11)

Country Link
US (1) US6258986B1 (es)
EP (1) EP0696569B1 (es)
JP (1) JP3631813B2 (es)
KR (1) KR100358318B1 (es)
CN (1) CN1075053C (es)
BR (1) BR9503613A (es)
CA (1) CA2155561A1 (es)
DE (2) DE4428461A1 (es)
ES (1) ES2123190T3 (es)
MX (1) MX196724B (es)
TW (1) TW474904B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745119A1 (de) 1997-10-13 1999-04-15 Bayer Ag Verfahren zur Herstellung von Dinitrotoluol in adiabatischer Fahrweise
KR100829798B1 (ko) * 2001-12-22 2008-05-16 주식회사 포스코 진공증발농축법을 이용한 도금폐수 처리방법
DE10307140A1 (de) * 2003-02-20 2004-09-09 Bayer Ag Verfahren zur zweistufigen Herstellung von Dinitrotoluol
KR20060109619A (ko) * 2005-04-18 2006-10-23 최명호 감압증발 고농도 폐수처리장치 및 그 방법
DE102006033722A1 (de) * 2006-07-21 2008-01-24 Bayer Materialscience Ag Verfahren zur Herstellung von Dinitrotoluol
US9261997B2 (en) * 2009-02-02 2016-02-16 Apple Inc. Touch regions in diamond configuration
US8933262B2 (en) 2011-05-24 2015-01-13 Basf Se Process for preparing polyisocyanates from biomass
EP2714650A1 (de) 2011-05-24 2014-04-09 Basf Se Verfahren zur herstellung von polyisocyanaten aus biomasse
KR20190046535A (ko) 2017-10-26 2019-05-07 (주)범용테크놀러지 진공증류식 폐액재생장치
CN110172023A (zh) * 2019-04-04 2019-08-27 清华大学 一种绝热硝化制备单硝基甲苯的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021498A (en) * 1975-12-09 1977-05-03 American Cyanamid Company Adiabatic process for nitration of nitratable aromatic compounds
DE3409719A1 (de) 1984-03-16 1985-09-19 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von dinitrotoluol
DE4309140C2 (de) * 1993-03-22 2001-09-20 Bayer Ag Verfahren zur Herstellung von Dinitrotoluol
TW236610B (en) * 1992-11-13 1994-12-21 Bayer Ag Preparation of dinitrotoluene

Also Published As

Publication number Publication date
US6258986B1 (en) 2001-07-10
JPH0859564A (ja) 1996-03-05
CN1121506A (zh) 1996-05-01
CA2155561A1 (en) 1996-02-12
CN1075053C (zh) 2001-11-21
EP0696569B1 (de) 1998-10-28
DE4428461A1 (de) 1996-02-15
BR9503613A (pt) 1996-04-30
MX196724B (en) 2000-05-31
JP3631813B2 (ja) 2005-03-23
TW474904B (en) 2002-02-01
DE59504048D1 (de) 1998-12-03
KR100358318B1 (ko) 2003-01-15
KR960007530A (ko) 1996-03-22
EP0696569A1 (de) 1996-02-14

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