BR112017000090A2 - método para a remoção de impurezas de dinitrotoluenos - Google Patents

método para a remoção de impurezas de dinitrotoluenos

Info

Publication number
BR112017000090A2
BR112017000090A2 BR112017000090A BR112017000090A BR112017000090A2 BR 112017000090 A2 BR112017000090 A2 BR 112017000090A2 BR 112017000090 A BR112017000090 A BR 112017000090A BR 112017000090 A BR112017000090 A BR 112017000090A BR 112017000090 A2 BR112017000090 A2 BR 112017000090A2
Authority
BR
Brazil
Prior art keywords
dinitrotoluene
impurities
extraction
separation
washed
Prior art date
Application number
BR112017000090A
Other languages
English (en)
Inventor
Hermann Heinrich
GEBAUER Jürgen
PÖHLMANN Jürgen
HÄNDEL Mirko
bergmann Tim
Original Assignee
Meissner Gmbh & Co Kg Josef
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 Meissner Gmbh & Co Kg Josef filed Critical Meissner Gmbh & Co Kg Josef
Publication of BR112017000090A2 publication Critical patent/BR112017000090A2/pt

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0488—Flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0005—Degasification of liquids with one or more auxiliary substances
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • 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
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Water Treatments (AREA)

Abstract

a presente invenção se refere a um método para a purificação de dinitrotoluenos brutos resultantes da dinitração do tolueno na presença de uma mistura de ácido nítrico / ácido sulfúrico / ácidos de nitração, e um dispositivo ou planta para a realização do método, e uma planta de produção correspondente para a produção de dinitrotolueno, caracterizado pelo fato de que (a) os dinitrotoluenos brutos são primeiro submetidos a uma lavagem com no mínimo um meio de lavagem depois de separação da mistura de ácidos de nitração, seguida por uma separação do meio de lavagem; e que (b) subsequentemente os dinitrotoluenos lavados resultantes da etapa (a) do método são submetidos a extração (tratamento com gás de extração) com no mínimo um gás (gás de extração).
BR112017000090A 2014-07-07 2015-04-30 método para a remoção de impurezas de dinitrotoluenos BR112017000090A2 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102014009948 2014-07-07
DE102015003743 2015-03-25
DE102015004242 2015-04-07
PCT/EP2015/059493 WO2016005070A1 (de) 2014-07-07 2015-04-30 Verfahren zur entfernung von verunreinigungen aus dinitrotoluolen

Publications (1)

Publication Number Publication Date
BR112017000090A2 true BR112017000090A2 (pt) 2017-10-31

Family

ID=53039906

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017000090A BR112017000090A2 (pt) 2014-07-07 2015-04-30 método para a remoção de impurezas de dinitrotoluenos

Country Status (13)

Country Link
US (2) US9738592B2 (pt)
EP (1) EP3154931B1 (pt)
JP (1) JP6437627B2 (pt)
KR (1) KR101917384B1 (pt)
CN (1) CN106573871B (pt)
BR (1) BR112017000090A2 (pt)
CA (1) CA2954075C (pt)
DE (1) DE102015106617B4 (pt)
EA (1) EA033865B1 (pt)
HU (1) HUE040721T2 (pt)
PL (1) PL3154931T3 (pt)
UA (1) UA118056C2 (pt)
WO (1) WO2016005070A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107986249B (zh) * 2017-10-31 2020-08-04 湖北东方化工有限公司 硝基甲苯废酸脱硝后稀硝酸去除硝基甲苯的方法
CN110302658A (zh) * 2019-07-03 2019-10-08 上海力皇环保工程有限公司 一种用于处理煤化焦化有机废气的装置及其方法
CN111013380A (zh) * 2019-12-04 2020-04-17 上海东升新材料有限公司 一种氮氧化物脱除的三段塔装置和脱除氮氧化物的方法
CN112206739B (zh) * 2020-10-19 2022-04-12 蚌埠学院 用于二氧化氮硝化反应的装置
CN113371906A (zh) * 2021-05-31 2021-09-10 湖北东方化工有限公司 一种二硝基甲苯回收装置及工艺
WO2024149668A1 (en) 2023-01-09 2024-07-18 Basf Se Process for removing nitric oxide, nitrous oxide and carbon monoxide from a gas stream

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2976320A (en) 1957-07-30 1961-03-21 Allied Chem Catalytic hydrogenation of the dinitro derivatives of toluene
CA1034603A (en) 1973-10-05 1978-07-11 Maurice W. Hunt Water washing of nitroaromatic compounds prior to catalytic reduction
US4224249A (en) 1979-05-14 1980-09-23 Air Products And Chemicals, Inc. Toluene diamine from non-washed dinitrotoluene
US4482769A (en) 1983-09-16 1984-11-13 Air Products And Chemicals, Inc. Reducing 2,4-dinitroortho-cresol in effluent stream from dinitrotoluene process
US4597875A (en) 1985-05-07 1986-07-01 Air Products And Chemicals, Inc. Precipitative removal of nitrocresols from dinitrotoluene waste streams
IT1221709B (it) 1987-07-03 1990-07-12 Danieli Off Mecc Martellatrice multiuso
DE19512114C2 (de) 1995-04-04 2000-04-27 Meissner Gmbh & Co Kg Josef Rückgewinnung von Salpetersäure aus Nitrierprozessen
DE19539205A1 (de) * 1995-10-22 1997-04-24 Meissner Gmbh & Co Kg Josef Verfahren zur Aromatennitrierung
FR2767318B1 (fr) 1997-08-13 1999-10-29 Rhodia Chimie Sa Procede de recuperation d'acide nitrique compris dans un melange de composes aromatiques dinitres
US6288289B1 (en) * 2000-01-27 2001-09-11 Noram Engineering And Constructors Ltd. Integrated effluent treatment process for nitroaromatic manufacture
DE102005050106B4 (de) 2005-10-18 2008-04-30 Josef Meissner Gmbh & Co. Kg Rückgewinnung von Nitriersäuregemischen aus Nitrienprozessen
EP1780198B1 (en) 2005-10-31 2011-10-05 Shin-Etsu Chemical Co., Ltd. Novel fluorosulfonyloxyalkyl sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process
DE102006004943A1 (de) 2006-02-03 2007-08-09 Bayer Materialscience Ag Verfahren zur Herstellung von Nitrobenzol
DE502006001608D1 (de) * 2006-06-21 2008-10-30 Qvf Engineering Gmbh Verfahren und Anlage zur Konzentrierung von Abfall-Schwefelsäuren aus Nitrierprozessen
DE102006060572A1 (de) 2006-12-19 2008-06-26 Bayer Materialscience Ag Verfahren zur Herstellung von Toluylendiaminen durch katalytische Hydrierung von Dinitrotoluolen
EP2465823A3 (en) * 2009-08-18 2012-08-22 Noram International Limited Washing system for nitroaromatic compounds
EP2513035A1 (de) * 2009-12-16 2012-10-24 Basf Se Saure toluolextraktion von dnt-abwässern
DE102012009787A1 (de) 2011-05-19 2012-11-22 Josef Meissner Gmbh & Co. Kg Verfahren und Vorrichtung zur Aufreinigung von Nitrierproduten
US8697921B2 (en) * 2011-08-09 2014-04-15 Basf Se Process for purifying wastewaters from the workup of crude aromatic nitro compounds
EP2841412B1 (de) 2012-04-25 2016-04-06 Basf Se Verfahren zur wäsche von dinitrotoluol
JP6418616B2 (ja) * 2013-09-05 2018-11-07 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 粗ジニトロトルエンからｈｃｎを除去する方法

Also Published As

Publication number Publication date
DE102015106617B4 (de) 2017-09-21
KR101917384B1 (ko) 2018-11-09
JP6437627B2 (ja) 2018-12-12
US20170166514A1 (en) 2017-06-15
JP2017521419A (ja) 2017-08-03
CA2954075C (en) 2018-12-11
DE102015106617A1 (de) 2016-01-07
EP3154931A1 (de) 2017-04-19
WO2016005070A1 (de) 2016-01-14
EP3154931B1 (de) 2018-08-15
PL3154931T3 (pl) 2019-02-28
UA118056C2 (uk) 2018-11-12
US20170305835A1 (en) 2017-10-26
CN106573871B (zh) 2018-09-04
US10125088B2 (en) 2018-11-13
HUE040721T2 (hu) 2019-03-28
EA033865B1 (ru) 2019-12-03
US9738592B2 (en) 2017-08-22
CA2954075A1 (en) 2016-01-14
CN106573871A (zh) 2017-04-19
KR20170027811A (ko) 2017-03-10
EA201790141A1 (ru) 2017-05-31

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements