MX9306835A - Proceso continuo de una sola etapa, para la produccion de mezclasisomericas de dinitrotolueno. - Google Patents

Proceso continuo de una sola etapa, para la produccion de mezclasisomericas de dinitrotolueno.

Info

Publication number
MX9306835A
MX9306835A MX9306835A MX9306835A MX9306835A MX 9306835 A MX9306835 A MX 9306835A MX 9306835 A MX9306835 A MX 9306835A MX 9306835 A MX9306835 A MX 9306835A MX 9306835 A MX9306835 A MX 9306835A
Authority
MX
Mexico
Prior art keywords
single stage
continuous process
production
dinitrotoluene
toluene
Prior art date
Application number
MX9306835A
Other languages
English (en)
Other versions
MX186144B (es
Inventor
Thomas Schieb
Gerhard Wiechers
Rudolf Sundermann
Uwe Jens Zarnack
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
Priority claimed from DE4238390A external-priority patent/DE4238390A1/de
Priority claimed from DE4309140A external-priority patent/DE4309140C2/de
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of MX9306835A publication Critical patent/MX9306835A/es
Publication of MX186144B publication Critical patent/MX186144B/es

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
    • 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
    • C07C201/16—Separation; Purification; Stabilisation; Use of additives
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Se describe un proceso continuo para la preparación de mezclas isoméricasde dinitrotolueno, mediante una nitración del tolueno, en una sola etapa,bajo condiciones adiabáticas. La entalpía de la reacción se usa para laremoción, mediante la destilación, del agua de reacción formada durante lanitración. En este proceso, el tolueno se hace reaccionar con un ácidonitrante que tiene desde aproximadamente 80 a aproximadamente 100% en pesode un componente inorgánico que tiene una composición específica y desdeaproximadamente 0 a aproximadamente 20% en peso de un componente orgánicoque tiene una composición específica.
MX9306835A 1992-11-13 1993-11-03 Proceso continuo de una sola etapa, para la produccion de mezclasisomericas de dinitrotolueno. MX9306835A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4238390A DE4238390A1 (de) 1992-11-13 1992-11-13 Verfahren zur Herstellung von Dinitrotoluol
DE4309140A DE4309140C2 (de) 1993-03-22 1993-03-22 Verfahren zur Herstellung von Dinitrotoluol

Publications (2)

Publication Number Publication Date
MX9306835A true MX9306835A (es) 1995-01-31
MX186144B MX186144B (es) 1997-09-26

Family

ID=25920435

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9306835A MX9306835A (es) 1992-11-13 1993-11-03 Proceso continuo de una sola etapa, para la produccion de mezclasisomericas de dinitrotolueno.

Country Status (10)

Country Link
EP (1) EP0597361B1 (es)
JP (1) JP3461878B2 (es)
KR (1) KR100326214B1 (es)
CN (1) CN1040427C (es)
BR (1) BR9304716A (es)
CA (1) CA2102587C (es)
DE (1) DE59303857D1 (es)
ES (1) ES2091539T3 (es)
MX (1) MX9306835A (es)
TW (1) TW236610B (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428459A1 (de) * 1994-08-11 1996-02-15 Bayer Ag Verfahren zur Herstellung von Dinitrotoluol
DE4428462A1 (de) * 1994-08-11 1996-02-15 Bayer Ag Verfahren zur Herstellung von Dinitrotoluol
DE4428460A1 (de) * 1994-08-11 1996-02-15 Bayer Ag Verfahren zur Herstellung von Nitroaromaten
DE4428461A1 (de) * 1994-08-11 1996-02-15 Bayer Ag Verfahren zur Herstellung von Dinitrotoluol
DE4437047A1 (de) * 1994-10-17 1996-04-18 Bayer Ag Verfahren zur Dinitrierung von aromatischen Verbindungen
DE19521614A1 (de) * 1995-06-14 1996-12-19 Bayer Ag Verfahren zur Herstellung von Dinitrotoluol
DE19745119A1 (de) * 1997-10-13 1999-04-15 Bayer Ag Verfahren zur Herstellung von Dinitrotoluol in adiabatischer Fahrweise
DE10307140A1 (de) * 2003-02-20 2004-09-09 Bayer Ag Verfahren zur zweistufigen Herstellung von Dinitrotoluol
US7122701B2 (en) * 2003-06-04 2006-10-17 Bayer Aktiengesellschaft Process for preparing aromatic amines
DE10345601A1 (de) * 2003-09-29 2005-05-12 Basf Ag Verfahren zur Entfernung von Nitrokresolen aus Abwasser der Mononitrotoluolherstellung und zur weiteren Verwendung des Extraktes
DE102004005913A1 (de) 2004-02-05 2005-08-25 Basf Ag Verfahren zur Herstellung von Dinitrotoluol
US7696391B2 (en) * 2007-06-27 2010-04-13 H R D Corporation System and process for production of nitrobenzene
CN101445458B (zh) * 2009-01-06 2010-10-06 烟台巨力异氰酸酯有限公司 一种二硝基甲苯相分离方法
DE102010006984A1 (de) * 2010-02-05 2011-08-11 Bayer MaterialScience AG, 51373 Verfahren zur kontinuierlichen Herstellung von Nitrobenzol
KR20140037139A (ko) 2011-05-24 2014-03-26 바스프 에스이 바이오매스로부터 폴리이소시아네이트의 제조 방법
US8933262B2 (en) 2011-05-24 2015-01-13 Basf Se Process for preparing polyisocyanates from biomass
DE102017110084B4 (de) 2017-02-03 2019-07-04 Josef Meissner Gmbh & Co. Kg Verfahren und Anlage zur adiabatischen Nitrierung von Aromaten

Family Cites Families (7)

* 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
FR1372978A (fr) * 1963-10-31 1964-09-18 Du Pont Fabrication en continu du m-dinitrobenzène
US3928475A (en) * 1974-08-09 1975-12-23 Du Pont Azeotropic nitration of benzene
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
JPS5850211B2 (ja) * 1978-08-30 1983-11-09 三井東圧化学株式会社 ジニトロトルエンの製造方法
US5099078A (en) * 1990-12-21 1992-03-24 Olin Corporation Process for preparing dinitrotoluene

Also Published As

Publication number Publication date
KR100326214B1 (ko) 2002-11-18
DE59303857D1 (de) 1996-10-24
JP3461878B2 (ja) 2003-10-27
CA2102587A1 (en) 1994-05-14
EP0597361A1 (de) 1994-05-18
CN1040427C (zh) 1998-10-28
ES2091539T3 (es) 1996-11-01
CA2102587C (en) 2004-09-14
BR9304716A (pt) 1994-11-01
CN1095707A (zh) 1994-11-30
EP0597361B1 (de) 1996-09-18
TW236610B (en) 1994-12-21
JPH07309814A (ja) 1995-11-28
MX186144B (es) 1997-09-26
KR940011433A (ko) 1994-06-21

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees