CA1127185A - Toluene diamine from non-washed dinitrotoluene - Google Patents

Toluene diamine from non-washed dinitrotoluene

Info

Publication number
CA1127185A
CA1127185A CA351,065A CA351065A CA1127185A CA 1127185 A CA1127185 A CA 1127185A CA 351065 A CA351065 A CA 351065A CA 1127185 A CA1127185 A CA 1127185A
Authority
CA
Canada
Prior art keywords
dinitrotoluene
ppm
catalyst
concentration
weight
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
Application number
CA351,065A
Other languages
English (en)
French (fr)
Inventor
Nance D. Kunz
Thomas A. Johnson
Barton Milligan
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Application granted granted Critical
Publication of CA1127185A publication Critical patent/CA1127185A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/30Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
    • C07C209/32Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
    • C07C209/36Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
CA351,065A 1979-05-14 1980-05-01 Toluene diamine from non-washed dinitrotoluene Expired CA1127185A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/038,976 US4224249A (en) 1979-05-14 1979-05-14 Toluene diamine from non-washed dinitrotoluene
US038,976 1979-05-14

Publications (1)

Publication Number Publication Date
CA1127185A true CA1127185A (en) 1982-07-06

Family

ID=21902990

Family Applications (1)

Application Number Title Priority Date Filing Date
CA351,065A Expired CA1127185A (en) 1979-05-14 1980-05-01 Toluene diamine from non-washed dinitrotoluene

Country Status (5)

Country Link
US (1) US4224249A (enExample)
EP (1) EP0019454B1 (enExample)
JP (1) JPS55157542A (enExample)
CA (1) CA1127185A (enExample)
DE (1) DE3061993D1 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482769A (en) * 1983-09-16 1984-11-13 Air Products And Chemicals, Inc. Reducing 2,4-dinitroortho-cresol in effluent stream from dinitrotoluene process
US4935557A (en) * 1984-08-07 1990-06-19 Air Products And Chemicals, Inc. Conitration of mixed aromatic hydrocarbons
US4597875A (en) * 1985-05-07 1986-07-01 Air Products And Chemicals, Inc. Precipitative removal of nitrocresols from dinitrotoluene waste streams
US4604214A (en) * 1985-08-16 1986-08-05 Air Products And Chemicals, Inc. Removal of nitrocresols from dinitrotoluene waste streams using fentons reagent
CN1027191C (zh) * 1990-01-31 1994-12-28 西屋电气公司 自动伪主相量发生器
DE19528781A1 (de) * 1995-08-04 1997-02-06 Bayer Ag Verfahren zur Herstellung von Toluylendiisocyanat, spezielle Gemische aus Toluylendiamin und Wasser und deren Verwendung zur Herstellung von Toluylendiisocyanat
US6179996B1 (en) 1998-05-22 2001-01-30 Membrane Technology And Research, Inc. Selective purge for hydrogenation reactor recycle loop
RU2164222C1 (ru) * 1999-11-30 2001-03-20 Козлов Александр Иванович Способ каталитического жидкофазного восстановления ароматических нитросоединений
DE102006060572A1 (de) * 2006-12-19 2008-06-26 Bayer Materialscience Ag Verfahren zur Herstellung von Toluylendiaminen durch katalytische Hydrierung von Dinitrotoluolen
PL2150342T3 (pl) * 2007-05-29 2018-07-31 Evonik Degussa Gmbh Aktywowane katalizatory z metali nieszlachetnych
WO2008145179A1 (en) * 2007-05-29 2008-12-04 Evonik Degussa Gmbh Activated base metal catalysts
JP5449140B2 (ja) * 2007-05-29 2014-03-19 エボニック デグサ ゲーエムベーハー 活性化卑金属触媒
EP2014641A3 (en) * 2007-06-06 2009-03-18 Huntsman International Llc Process for preparing mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates
EP2203249A1 (en) * 2007-10-15 2010-07-07 Evonik Degussa GmbH Fast filtering powder catalytic mixtures
JP6193358B2 (ja) * 2012-04-25 2017-09-06 ビーエーエスエフ ソシエタス・ヨーロピアBasf Se ジニトロトルエンを洗浄する方法
US9249083B2 (en) 2012-04-25 2016-02-02 Basf Se Process for scrubbing dinitrotoluene
CN103480370A (zh) * 2012-06-15 2014-01-01 中国石油化工股份有限公司 一种催化加氢用碳载钯铂金属催化剂的制备方法
DE102015106617B4 (de) 2014-07-07 2017-09-21 Josef Meissner Gmbh & Co. Kg Verfahren zur Aufreinigung von Rohdinitrotoluolen

Family Cites Families (3)

* 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
FR1482056A (fr) * 1966-03-10 1967-05-26 Melle Usines Sa Procédé d'hydrogénation
DE1915272C3 (de) * 1969-03-26 1979-09-06 Bayer Ag, 5090 Leverkusen Verfahren zum Entfernen nitrophenolischer Verbindungen aus der bei der Herstellung von Nitrobenzolen anfallenden Waschlauge

Also Published As

Publication number Publication date
US4224249A (en) 1980-09-23
JPS5736271B2 (enExample) 1982-08-03
DE3061993D1 (en) 1983-03-24
EP0019454A3 (en) 1981-06-10
EP0019454A2 (en) 1980-11-26
EP0019454B1 (en) 1983-02-16
JPS55157542A (en) 1980-12-08

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Legal Events

Date Code Title Description
MKEX Expiry
MKEX Expiry

Effective date: 19990706