MY156559A - Process for preparing toluenediamine by hydrogenation of dinitrotoluene - Google Patents

Process for preparing toluenediamine by hydrogenation of dinitrotoluene

Info

Publication number
MY156559A
MY156559A MYPI2012004968A MYPI2012004968A MY156559A MY 156559 A MY156559 A MY 156559A MY PI2012004968 A MYPI2012004968 A MY PI2012004968A MY PI2012004968 A MYPI2012004968 A MY PI2012004968A MY 156559 A MY156559 A MY 156559A
Authority
MY
Malaysia
Prior art keywords
reactor
dinitrotoluene
toluenediamine
hydrogenation
liquid phase
Prior art date
Application number
MYPI2012004968A
Inventor
Raichle Dr Andreas
Coelho Tsou Dr Joana
Neto Dr Samuel
Penzel Ulrich
Oehlenschläger Dr Steffen
Zöllinger Michael
Braunsberg Holgar
Haase Stefanie
Büttner Johannes
Original Assignee
Basf Se
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 Basf Se filed Critical Basf Se
Publication of MY156559A publication Critical patent/MY156559A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
    • C07C209/32—Preparation 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
    • C07C209/36—Preparation 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
    • C07C211/49—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton

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)

Abstract

THE INVENTION RELATES TO A PROCESS FOR THE CONTINUOUS PREPARATION OF TOLUENEDIAMINE BY LIQUID-PHASE HYDROGENATION OF DINITROTOLUENE BY MEANS OF HYDROGEN IN THE PRESENCE OF A SUSPENDED, NICKEL-COMPRISING CATALYST IN A REACTOR WITH A PRODUCT ISOLATION UNIT DOWNSTREAM OF THE REACTOR TO GIVE A PRODUCT OUTPUT FROM THE REACTOR COMPRISING A LIQUID PHASE COMPRISING TOLUENEDIAMINE AND DINITROTOLUENE, IN WHICH THE NICKEL-COMPRISING CATALYST IS SUSPENDED, WHEREIN THE CONCENTRATION OF DINITROTOLUENE IN THE LIQUID PHASE OF THE PRODUCT OUTPUT FROM THE REACTOR IN THE REGION BETWEEN THE REACTOR AND THE DOWNSTREAM PRODUCT ISOLATION UNIT IS SET TO A VALUE IN THE RANGE FROM 1 TO 200 PPM BY WEIGHT, BASED ON THE TOTAL WEIGHT OF THE LIQUID PHASE OF THE PRODUCT OUTPUT FROM THE REACTOR.
MYPI2012004968A 2010-05-17 2011-05-09 Process for preparing toluenediamine by hydrogenation of dinitrotoluene MY156559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10162924 2010-05-17

Publications (1)

Publication Number Publication Date
MY156559A true MY156559A (en) 2016-02-26

Family

ID=44358176

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2012004968A MY156559A (en) 2010-05-17 2011-05-09 Process for preparing toluenediamine by hydrogenation of dinitrotoluene

Country Status (9)

Country Link
EP (1) EP2571844B1 (en)
JP (1) JP2013530140A (en)
KR (1) KR20130080445A (en)
CN (1) CN102892747B (en)
BR (1) BR112012027954A2 (en)
HU (1) HUE037511T2 (en)
MY (1) MY156559A (en)
SG (1) SG185374A1 (en)
WO (1) WO2011144481A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2649041B1 (en) * 2010-12-06 2016-06-08 Basf Se Method for producing aromatic amines
US8835688B2 (en) 2011-03-16 2014-09-16 Basf Se Optimized introduction of the starting materials for a process for preparing aromatic amines by hydrogenation of nitroaromatics
US8895783B2 (en) 2012-02-07 2014-11-25 Basf Se Monitoring of the stoichiometric ratio in the reaction of nitroaromatics with hydrogen
WO2013117622A1 (en) * 2012-02-07 2013-08-15 Basf Se Monitoring the stoichiometric ratio during the reaction of nitroaromatics with hydrogen
WO2014108351A1 (en) 2013-01-11 2014-07-17 Basf Se Device and method for the continuous reaction of liquids with gases
US9302237B2 (en) 2013-01-11 2016-04-05 Basf Se Apparatus and process for the continuous reaction of liquids with gases
US9295971B2 (en) 2013-01-11 2016-03-29 Basf Se Apparatus and process for the continuous reaction of liquids with gases
WO2015052068A1 (en) * 2013-10-08 2015-04-16 Bayer Materialscience Ag Method for producing diaminotoluene
CN104098475A (en) * 2014-07-28 2014-10-15 淮安嘉诚高新化工股份有限公司 Device and method for producing diaminotoluene (TDA) by continuous liquid phase catalysis hydrogenation reduction of dinitrotoluene (DNT)
US10538478B2 (en) * 2016-10-10 2020-01-21 Basf Se Catalyst modification with alkali metal, alkaline earth metal or rare earth metal ions in the continuous liquid-phase hydrogenation of nitro compounds
CN107325006A (en) * 2017-08-04 2017-11-07 赛鼎工程有限公司 A kind of technique of hydrogenation of dinitro toluene tubular type thickening
CN111212827B (en) * 2017-10-16 2023-11-17 巴斯夫欧洲公司 Improved catalyst selectivity in the continuous hydrogenation of nitro compounds by the addition of ammonia
CN109053462B (en) * 2018-08-14 2021-11-05 浙江今晖新材料股份有限公司 Preparation method of para-fluoroaniline
CN116440898B (en) * 2023-05-08 2025-02-07 中国科学院金属研究所 Atomic-level dispersed Pd-Pt catalyst for dinitrotoluene hydrogenation reaction and preparation method and application thereof
WO2025257162A1 (en) 2024-06-11 2025-12-18 Basf Se Mixture comprising toluene diamine and method for controlling a hydrogenation process for preparing toluene diamine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172947A (en) * 1984-02-16 1985-09-06 Mitsui Toatsu Chem Inc Continuous preparation of tolylenediamine
DE19844901C1 (en) 1998-09-30 1999-11-04 Bayer Ag Method for metering liquid polynitro-aromatic compounds into hydrogenation reactors
KR100655354B1 (en) * 1998-12-12 2006-12-08 바스프 악티엔게젤샤프트 Method of Making Amines
DE19909176A1 (en) 1999-03-03 2000-09-07 Kataleuna Gmbh Catalysts Hydrogenation catalyst and process for its manufacture
DE19909177A1 (en) 1999-03-03 2000-09-07 Kataleuna Gmbh Catalysts Functional group hydrogenation catalyst and process for its preparation
DE19909168A1 (en) * 1999-03-03 2000-09-07 Basf Ag Process for the production of amines
CN1312108C (en) * 2002-02-06 2007-04-25 巴斯福股份公司 Method for the production of amines
DE10206214A1 (en) * 2002-02-15 2003-08-28 Basf Ag Process for the production of amines
DE10349095A1 (en) 2003-10-17 2005-05-19 Basf Ag Process for the preparation of amines
US20100130788A1 (en) 2007-05-10 2010-05-27 Basf Se Method for producing amines
JP5562235B2 (en) 2007-05-29 2014-07-30 エボニック デグサ ゲーエムベーハー Activated base metal catalyst

Also Published As

Publication number Publication date
SG185374A1 (en) 2012-12-28
CN102892747B (en) 2014-05-21
EP2571844B1 (en) 2017-10-04
BR112012027954A2 (en) 2017-07-25
KR20130080445A (en) 2013-07-12
WO2011144481A1 (en) 2011-11-24
EP2571844A1 (en) 2013-03-27
JP2013530140A (en) 2013-07-25
HUE037511T2 (en) 2018-09-28
CN102892747A (en) 2013-01-23

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