TW200516069A - Process for working up secondary components in the preparation of dinitrotoluene - Google Patents

Process for working up secondary components in the preparation of dinitrotoluene

Info

Publication number
TW200516069A
TW200516069A TW093118910A TW93118910A TW200516069A TW 200516069 A TW200516069 A TW 200516069A TW 093118910 A TW093118910 A TW 093118910A TW 93118910 A TW93118910 A TW 93118910A TW 200516069 A TW200516069 A TW 200516069A
Authority
TW
Taiwan
Prior art keywords
dinitrotoluene
secondary components
working
organic
preparation
Prior art date
Application number
TW093118910A
Other languages
English (en)
Inventor
Jurgen Munnig
Dietmar Wastian
Wolfgang Lorenz
Berthold Keggenhoff
Original Assignee
Bayer Materialscience 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 Materialscience Ag filed Critical Bayer Materialscience Ag
Publication of TW200516069A publication Critical patent/TW200516069A/zh

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/26—Treatment of water, waste water, or sewage by extraction
    • 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
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
TW093118910A 2003-06-30 2004-06-29 Process for working up secondary components in the preparation of dinitrotoluene TW200516069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10329303A DE10329303A1 (de) 2003-06-30 2003-06-30 Verfahren zur Aufarbeitung des bei der Herstellung von Dinitrotoluol anfallenden Abwassers

Publications (1)

Publication Number Publication Date
TW200516069A true TW200516069A (en) 2005-05-16

Family

ID=33426784

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093118910A TW200516069A (en) 2003-06-30 2004-06-29 Process for working up secondary components in the preparation of dinitrotoluene

Country Status (8)

Country Link
US (1) US6953869B2 (zh)
EP (1) EP1493730B1 (zh)
JP (1) JP4593985B2 (zh)
KR (1) KR101093972B1 (zh)
CN (1) CN1309663C (zh)
AT (1) ATE444947T1 (zh)
DE (2) DE10329303A1 (zh)
TW (1) TW200516069A (zh)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102004017628A1 (de) * 2004-04-10 2005-11-03 Bayer Materialscience Ag Verfahren zur Aufarbeitung von aromatische Nitroverbindungen enthaltenden Abwässern
DE102005050106B4 (de) * 2005-10-18 2008-04-30 Josef Meissner Gmbh & Co. Kg Rückgewinnung von Nitriersäuregemischen aus Nitrienprozessen
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
CN102781843B (zh) 2009-12-16 2014-06-18 巴斯夫欧洲公司 来自硝化装置废水料流的含NOx的废气的循环方法
US20120248038A1 (en) * 2009-12-16 2012-10-04 Basf Se Acid toluene extraction of dnt wastewaters
BR112012013551A2 (pt) 2009-12-16 2017-10-10 Basf Se processo para processar água residual de processo alcalina.
PT2571816E (pt) 2010-05-21 2014-07-18 Basf Se Método e dispositivo para a eliminação de nitro-aromáticos das águas residuais
US20120205308A1 (en) * 2010-08-12 2012-08-16 Basf Se Process for purifying wastewaters from the workup of crude aromatic nitro compounds
JP2014520086A (ja) 2011-05-24 2014-08-21 ビーエーエスエフ ソシエタス・ヨーロピア バイオマスからポリイソシアナートを製造する方法
US8933262B2 (en) 2011-05-24 2015-01-13 Basf Se Process for preparing polyisocyanates from biomass
CN102353062A (zh) * 2011-08-08 2012-02-15 江苏福斯特化工制造有限公司 硝基甲苯生产过程中硝化废水的浓缩焚烧处理方法
EP2841412B1 (de) 2012-04-25 2016-04-06 Basf Se Verfahren zur wäsche von dinitrotoluol
US9249083B2 (en) 2012-04-25 2016-02-02 Basf Se Process for scrubbing dinitrotoluene
DE102018217955B4 (de) * 2018-10-19 2020-06-04 Plinke Gmbh Verfahren zur Aufarbeitung von Mischsäure und Abwasser aus der Nitrierung von Aromaten sowie Vorrichtung zur Durchführung des Verfahrens
CN109320422B (zh) * 2018-12-17 2023-12-05 湖北东方化工有限公司 一种酸性废水提取多硝基甲苯的装置
CN111620504A (zh) * 2020-06-04 2020-09-04 湖北东方化工有限公司 一种多硝基甲苯生产预洗废水处理新工艺的生产方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818680A1 (de) 1978-04-27 1979-10-31 Bayer Ag Verfahren zur aufarbeitung von nitro-hydroxy-aromaten enthaltenden abwaessern
US4597875A (en) 1985-05-07 1986-07-01 Air Products And Chemicals, Inc. Precipitative removal of nitrocresols from dinitrotoluene waste streams
DE4107972A1 (de) 1991-03-13 1992-09-17 Basf Ag Verfahren zum abbau von aromatischen nitroverbindungen enthaltenden abwaessern
DE19512114C2 (de) * 1995-04-04 2000-04-27 Meissner Gmbh & Co Kg Josef Rückgewinnung von Salpetersäure aus Nitrierprozessen
US5762802A (en) * 1997-05-01 1998-06-09 Air Products And Chemicals, Inc. Dilute acid oxidation of dinitrotoluene alkaline wash water
DE19745119A1 (de) 1997-10-13 1999-04-15 Bayer Ag Verfahren zur Herstellung von Dinitrotoluol in adiabatischer Fahrweise
JP2001179242A (ja) * 1999-12-24 2001-07-03 Sumitomo Chem Co Ltd ニトロフェノール類含有廃水の処理方法
US6288289B1 (en) * 2000-01-27 2001-09-11 Noram Engineering And Constructors Ltd. Integrated effluent treatment process for nitroaromatic manufacture
DE10143800C1 (de) * 2001-09-06 2002-08-22 Plinke Gmbh Verfahren zur Minimierung des Abwassers bei der Herstellung von DNT
US6506948B1 (en) 2002-02-07 2003-01-14 Air Products And Chemicals, Inc. Toluene extraction of dinitrotoluene wash water

Also Published As

Publication number Publication date
DE10329303A1 (de) 2005-02-03
KR20050002619A (ko) 2005-01-07
US20040267062A1 (en) 2004-12-30
EP1493730A1 (de) 2005-01-05
CN1309663C (zh) 2007-04-11
ATE444947T1 (de) 2009-10-15
JP4593985B2 (ja) 2010-12-08
KR101093972B1 (ko) 2011-12-15
CN1576240A (zh) 2005-02-09
DE502004010189D1 (de) 2009-11-19
EP1493730B1 (de) 2009-10-07
US6953869B2 (en) 2005-10-11
JP2005023076A (ja) 2005-01-27

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