ES2172914T3 - Procedimiento de tratamiento de soluciones acuosas que comprenden acidos y compuestos nitrados. - Google Patents

Procedimiento de tratamiento de soluciones acuosas que comprenden acidos y compuestos nitrados.

Info

Publication number
ES2172914T3
ES2172914T3 ES98942728T ES98942728T ES2172914T3 ES 2172914 T3 ES2172914 T3 ES 2172914T3 ES 98942728 T ES98942728 T ES 98942728T ES 98942728 T ES98942728 T ES 98942728T ES 2172914 T3 ES2172914 T3 ES 2172914T3
Authority
ES
Spain
Prior art keywords
indicated
recycled
washing
aqueous phase
compounds
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
ES98942728T
Other languages
English (en)
Inventor
Philippe Marion
Bris Louis Le
Gerard Berrod
Georges Dovergne
Philippe Perrona
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.)
Rhodia Chimie SAS
Original Assignee
Rhodia Chimie SAS
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 Rhodia Chimie SAS filed Critical Rhodia Chimie SAS
Application granted granted Critical
Publication of ES2172914T3 publication Critical patent/ES2172914T3/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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/903—Nitrogenous
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/908—Organic
    • Y10S210/909—Aromatic compound, e.g. pcb, phenol

Landscapes

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

Abstract

Procedimiento de tratamiento de una solución acuosa procedente del lavado de compuestos aromáticos mononitrados o dinitrados obtenidos por la reacción de un compuesto aromático correspondiente, con un ácido nitrante que comprende al menos ácido nítrico, habiendo sido los indicados compuestos aromáticos mononitrados o dinitrados, previamente al lavado mencionado, separados de la fase acuosa ácida; siendo el indicado lavado realizado con agua que puede también comprender trazas de ácido nitrante, caracterizado porque se realizan las etapas siguientes: (a) se pone en contacto la indicada solución acuosa con el compuesto aromático anteriormente citado, y se obtiene una fase acuosa y una fase orgánica. (b) se recicla la indicada fase orgánica en el procedimiento de nitración, o en la extracción de los ácidos residuales de mononitración. (c) se destila la indicada fase acuosa. (d) se recicla la solución ácida concentrada así obtenida, en el procedimiento de nitración, (e) se recicla o se elimina el agua recuperada después de la destilación.
ES98942728T 1997-08-13 1998-08-11 Procedimiento de tratamiento de soluciones acuosas que comprenden acidos y compuestos nitrados. Expired - Lifetime ES2172914T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9710346A FR2767319B1 (fr) 1997-08-13 1997-08-13 Procede de traitement de solutions aqueuses comprenant des acides et des composes nitres

Publications (1)

Publication Number Publication Date
ES2172914T3 true ES2172914T3 (es) 2002-10-01

Family

ID=9510284

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98942728T Expired - Lifetime ES2172914T3 (es) 1997-08-13 1998-08-11 Procedimiento de tratamiento de soluciones acuosas que comprenden acidos y compuestos nitrados.

Country Status (8)

Country Link
US (1) US6254789B1 (es)
EP (1) EP1003710B1 (es)
DE (1) DE69803854T2 (es)
DK (1) DK1003710T3 (es)
ES (1) ES2172914T3 (es)
FR (1) FR2767319B1 (es)
PT (1) PT1003710E (es)
WO (1) WO1999008995A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6723236B2 (en) 2002-03-19 2004-04-20 Waters Investments Limited Device for solid phase extraction and method for purifying samples prior to analysis
US7000409B2 (en) * 2003-05-23 2006-02-21 Marit Jagtoyen Mazzetti Use of flow through capacitor in the recovery and purification of water from exhaust gases of internal combustion engines
DE10329304A1 (de) * 2003-06-30 2005-02-03 Bayer Materialscience Ag Verfahren zur Aufarbeitung des bei der Herstellung von Dinitrotoluol anfallenden Abwassers
DE102004017628A1 (de) * 2004-04-10 2005-11-03 Bayer Materialscience Ag Verfahren zur Aufarbeitung von aromatische Nitroverbindungen enthaltenden Abwässern
US7736529B2 (en) * 2007-10-12 2010-06-15 Honeywell International Inc Azeotrope-like compositions containing sulfur hexafluoride and uses thereof
US20120205308A1 (en) * 2010-08-12 2012-08-16 Basf Se Process for purifying wastewaters from the workup of crude aromatic nitro compounds
PL2841412T3 (pl) 2012-04-25 2016-10-31 Sposób przemywania dinitrotoluenu
US9249083B2 (en) 2012-04-25 2016-02-02 Basf Se Process for scrubbing dinitrotoluene
CN108440300A (zh) * 2018-05-15 2018-08-24 福建省东南电化股份有限公司 一种硝化废酸浓缩过程中防止堵塞的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2773911A (en) * 1953-12-11 1956-12-11 Du Pont Continuous manufacture of nitrobenzene
EP0047331A1 (en) * 1980-09-06 1982-03-17 American Cyanamid Company Recovery of nitrated aromatic compounds from nitration wash liquors
FR2714666B1 (fr) * 1993-12-31 1996-03-01 Rhone Poulenc Chimie Procédé d'élimination d'effluents aqueux comprenant notamment des composés hydroxynitroaromatiques.
DE4428460A1 (de) * 1994-08-11 1996-02-15 Bayer Ag Verfahren zur Herstellung von Nitroaromaten

Also Published As

Publication number Publication date
WO1999008995A1 (fr) 1999-02-25
FR2767319A1 (fr) 1999-02-19
FR2767319B1 (fr) 1999-10-29
US6254789B1 (en) 2001-07-03
PT1003710E (pt) 2002-07-31
DE69803854T2 (de) 2002-09-26
EP1003710A1 (fr) 2000-05-31
DK1003710T3 (da) 2002-03-25
EP1003710B1 (fr) 2002-02-13
DE69803854D1 (de) 2002-03-21

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