GB913444A - Production of aniline - Google Patents

Production of aniline

Info

Publication number
GB913444A
GB913444A GB146761A GB146761A GB913444A GB 913444 A GB913444 A GB 913444A GB 146761 A GB146761 A GB 146761A GB 146761 A GB146761 A GB 146761A GB 913444 A GB913444 A GB 913444A
Authority
GB
United Kingdom
Prior art keywords
nitrobenzene
catalyst
layer
hydrogenation
atm
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
GB146761A
Inventor
Heinrich Sperber
Guenter Poehler
Hans Joachim Pistor
Anton Wegerich
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB913444A publication Critical patent/GB913444A/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)

Abstract

In a process for the production of aniline, or an amine of an alkyl benzene, by the hydrogenation of nitrobenzene, or an alkylated nitrobenzene e.g. nitrotoluene or nitroxylene, using a metal hydrogenation catalyst in a fluidised layer, preferably provided with cooling means, the nitrobenzene is introduced into the layer at least partly in liquid phase at a plurality of points at least some of which are at different heights. The hydrogen and nitrobenzene are introduced into the reaction zone in a molar ratio of at least 3 : 1. The reaction is preferably carried out at a pressure of 4-25 atmospheres at temperatures between 200 and 400 DEG C. The hydrogen may be introduced with the nitrobenzene e.g. by using a two-component nozzle, or at the bottom of the reaction vessel. The points of introduction of the nitrobenzene are preferably distributed over the lower three-quarters of the fluidised catalyst layer. When a reactor of large crosssectional area is used, several inlets may be provided at the same level. In examples, the hydrogenation is carried out at 275 DEG C. and at 300 DEG C. at 10 atm. using a Cu on alumina catalyst and at 280-290 DEG C. at 5 atm. using Cu with traces of Cr, Ba, and Zn on silicic acid as catalyst. An Ni/Mo catalyst may also be used.
GB146761A 1960-01-15 1961-01-13 Production of aniline Expired GB913444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB56258A DE1114820B (en) 1960-01-15 1960-01-15 Process for the production of aniline

Publications (1)

Publication Number Publication Date
GB913444A true GB913444A (en) 1962-12-19

Family

ID=6971264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB146761A Expired GB913444A (en) 1960-01-15 1961-01-13 Production of aniline

Country Status (3)

Country Link
BE (1) BE599140A (en)
DE (1) DE1114820B (en)
GB (1) GB913444A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105862072A (en) * 2016-04-19 2016-08-17 盐城工学院 Novel technical method for reducing nitrobenzene through zinc
US10513487B2 (en) 2014-06-24 2019-12-24 Covestro Deutschland Ag Methods for producing chemical products with operation interruptions

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL178963C (en) * 1972-04-22 1986-06-16 Sumitomo Chemical Co PROCESS FOR PREPARING ANILINE BY HYDROGENATION OF NITROBENZENE.
DE2708914C2 (en) * 1977-03-02 1987-05-14 Dynamit Nobel Ag, 5210 Troisdorf Process and apparatus for producing hydrazobenzene
DE4110457A1 (en) * 1991-03-30 1992-10-01 Basf Ag PROCESS FOR THE PREPARATION OF AROMATIC AMINES
US8044244B2 (en) 2006-09-19 2011-10-25 Basf Se Process for preparing aromatic amines in a fluidized-bed reactor
DE102009019436A1 (en) 2009-04-29 2010-11-04 Bayer Materialscience Ag Process for the preparation of aromatic amines
CN102574771B (en) * 2009-10-20 2014-04-16 巴斯夫欧洲公司 Process for preparation and preferably distillative processing of diphenylmethane diisocyanate (MDI)
KR20130041145A (en) 2010-07-30 2013-04-24 바이엘 인텔렉쳐 프로퍼티 게엠베하 Method for continuously producing nitrobenzene
EP2641892A1 (en) 2012-03-23 2013-09-25 Bayer MaterialScience AG Method for cleaning aniline from gas phase hydrogenation
EP2653462A1 (en) 2012-04-16 2013-10-23 Bayer MaterialScience AG Method for improved starting the reaction when producing aromatic amines from nitroaromatics
EP2653461A1 (en) 2012-04-16 2013-10-23 Bayer MaterialScience AG Method for improved stopping of the reaction when producing aromatic amines from nitroaromatics
HUE055741T2 (en) 2016-08-17 2021-12-28 Covestro Intellectual Property Gmbh & Co Kg Method and device for the production of various chemical products
EP3953322A1 (en) 2019-04-12 2022-02-16 Basf Se Catalyst system for producing aromatic amines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10513487B2 (en) 2014-06-24 2019-12-24 Covestro Deutschland Ag Methods for producing chemical products with operation interruptions
CN105862072A (en) * 2016-04-19 2016-08-17 盐城工学院 Novel technical method for reducing nitrobenzene through zinc

Also Published As

Publication number Publication date
DE1114820B (en) 1961-10-12
BE599140A (en) 1961-07-17

Similar Documents

Publication Publication Date Title
GB913444A (en) Production of aniline
KR960014089A (en) Continuous production method of aromatic amine
GB894751A (en) Improvements in the hydrogenation of nitrogenous carbon compounds
GB975914A (en) Sulphonation of organic compounds
US2432843A (en) Process for hydrogenating mononuclear aromatic and cycloalkene hydrocarbons
GB947365A (en) Process for preparing unsaturated nitriles
GB972122A (en) Production of aromatic nitriles
US2688044A (en) Condensation of aromatic compounds with unsaturated organic compounds in the presence of mixed catalysts
GB982903A (en) Process for the manufacture of aromatic amines
ES2103823T3 (en) SUBITARY REACTOR COOLING FOR CATALYTIC HYDRATION OF OLEPHINS DURING THE PRODUCTION OF ETERS.
GB929112A (en) Process for the oxidative dehydrogenation of cí¬c alkanes
GB903062A (en) Dimeric p-isopropenylphenol, a process for its production and its use in the preparation of 1:3:3:trimethyl-1-p-hydroxyphenyl-indan-6-ol
GB940305A (en) Catalytic reduction of aromatic mononitro compounds
GB1104275A (en) Process for preparing cyclohexane
GB1232257A (en)
GB890095A (en) Process for preparing cyclohexanone
US2432381A (en) Preparation of alkyl-substituted aromatic hydrocarbons
FR1243116A (en) Process for accelerating the reaction of an isocyanate or an isothiocyanate with an active hydrogen compound, in the presence of a composite catalyst
US3000985A (en) Preparation of diarylalkanes
GB881512A (en) Process of producing cyclohexylamine
GB991789A (en) Catalytic reduction of 3-chloronitrobenzenes
GB896803A (en) Process for the manufacture of water-insoluble quinacridones free from sulphonic acid groups
US3594441A (en) Production of heptenes
US3197522A (en) Process for alkylating aromatics
Saha et al. Alkylbenzenes for detergents