EA201790141A1 - Способ удаления примесей из динитротолуолов - Google Patents

Способ удаления примесей из динитротолуолов

Info

Publication number
EA201790141A1
EA201790141A1 EA201790141A EA201790141A EA201790141A1 EA 201790141 A1 EA201790141 A1 EA 201790141A1 EA 201790141 A EA201790141 A EA 201790141A EA 201790141 A EA201790141 A EA 201790141A EA 201790141 A1 EA201790141 A1 EA 201790141A1
Authority
EA
Eurasian Patent Office
Prior art keywords
dinitrotoluene
separation
subjected
stripping
nitrating
Prior art date
Application number
EA201790141A
Other languages
English (en)
Other versions
EA033865B1 (ru
Inventor
Хайнрих Херманн
Юрген Пельманн
Мирко Хендель
Юрген Гебауэр
Тим Бергманн
Original Assignee
Йозеф Майсснер Гмбх Унд Ко. Кг
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 Йозеф Майсснер Гмбх Унд Ко. Кг filed Critical Йозеф Майсснер Гмбх Унд Ко. Кг
Publication of EA201790141A1 publication Critical patent/EA201790141A1/ru
Publication of EA033865B1 publication Critical patent/EA033865B1/ru

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

Настоящее изобретение относится к способу очистки сырых динитротолуолов, получающихся в результате динитрования толуола в присутствии нитрующей смеси кислот из азотной кислоты/серной кислоты, а также к аппарату или соответственно к установке для осуществления способа и к соответствующей производственной установке для получения динитротолуолов, отличающемуся тем, что (а) сырые динитротолуолы после отделения нитрующей смеси кислот сначала подвергают промывке по меньшей мере одной промывающей средой, за которой следует отделение промывающей среды; и (b) вслед за этим полученные в результате со стадии (а) промытые динитротолуолы подвергают отпариванию (обработке отпарным газом) по меньшей мере одним газом (отпарным газом).
EA201790141A 2014-07-07 2015-04-30 Способ удаления примесей из динитротолуолов EA033865B1 (ru)

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 (2)

Publication Number Publication Date
EA201790141A1 true EA201790141A1 (ru) 2017-05-31
EA033865B1 EA033865B1 (ru) 2019-12-03

Family

ID=53039906

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201790141A EA033865B1 (ru) 2014-07-07 2015-04-30 Способ удаления примесей из динитротолуолов

Country Status (13)

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

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)

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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
HUE030104T2 (en) * 2009-08-18 2017-04-28 Noram Int Ltd Washing system for nitroaromatic compounds
WO2011082978A1 (de) * 2009-12-16 2011-07-14 Basf Se Saure toluolextraktion von dnt-abwässern
PL2772304T3 (pl) 2011-05-19 2017-10-31 Meissner Gmbh & Co Kg Josef Urządzenia do oczyszczania poddanych nitrowaniu produktów
US8697921B2 (en) * 2011-08-09 2014-04-15 Basf Se Process for purifying wastewaters from the workup of crude aromatic nitro compounds
KR102048059B1 (ko) 2012-04-25 2019-11-22 바스프 에스이 디니트로톨루엔의 세정 방법
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
JP6437627B2 (ja) 2018-12-12
EP3154931B1 (de) 2018-08-15
JP2017521419A (ja) 2017-08-03
CN106573871B (zh) 2018-09-04
PL3154931T3 (pl) 2019-02-28
US20170305835A1 (en) 2017-10-26
CA2954075C (en) 2018-12-11
US10125088B2 (en) 2018-11-13
DE102015106617A1 (de) 2016-01-07
CN106573871A (zh) 2017-04-19
KR20170027811A (ko) 2017-03-10
UA118056C2 (uk) 2018-11-12
KR101917384B1 (ko) 2018-11-09
WO2016005070A1 (de) 2016-01-14
BR112017000090A2 (pt) 2017-10-31
EA033865B1 (ru) 2019-12-03
HUE040721T2 (hu) 2019-03-28
DE102015106617B4 (de) 2017-09-21
US20170166514A1 (en) 2017-06-15
US9738592B2 (en) 2017-08-22
EP3154931A1 (de) 2017-04-19
CA2954075A1 (en) 2016-01-14

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MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG TJ TM