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RU2003121732A - METHOD FOR PRODUCING ANILINE AND N-METHYLANILINE - Google Patents

METHOD FOR PRODUCING ANILINE AND N-METHYLANILINE Download PDF

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Publication number
RU2003121732A
RU2003121732A RU2003121732/04A RU2003121732A RU2003121732A RU 2003121732 A RU2003121732 A RU 2003121732A RU 2003121732/04 A RU2003121732/04 A RU 2003121732/04A RU 2003121732 A RU2003121732 A RU 2003121732A RU 2003121732 A RU2003121732 A RU 2003121732A
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RU
Russia
Prior art keywords
nitrobenzene
formaldehyde
methanol
zinc
methylaniline
Prior art date
Application number
RU2003121732/04A
Other languages
Russian (ru)
Other versions
RU2259350C2 (en
Inventor
Борис Николаевич Горбунов (RU)
Борис Николаевич Горбунов
Севасть н Карпович Слепов (RU)
Севастьян Карпович Слепов
Андрей Николаевич Утробин (RU)
Андрей Николаевич Утробин
Николай Акиндинович Митин (RU)
Николай Акиндинович Митин
Original Assignee
Открытое акционерное общество "Пигмент" (RU)
Открытое акционерное общество "Пигмент"
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.)
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Publication date
Application filed by Открытое акционерное общество "Пигмент" (RU), Открытое акционерное общество "Пигмент" filed Critical Открытое акционерное общество "Пигмент" (RU)
Priority to RU2003121732/04A priority Critical patent/RU2259350C2/en
Publication of RU2003121732A publication Critical patent/RU2003121732A/en
Application granted granted Critical
Publication of RU2259350C2 publication Critical patent/RU2259350C2/en

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  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (5)

1. Способ получения анилина и N-метиланилина из нитробензола газофазным каталитическим восстановлением при повышенной температуре, отличающийся тем, что восстановление проводят водным раствором метанола или формальдегида без подачи молекулярного водорода в реакционную систему.1. The method of producing aniline and N-methylaniline from nitrobenzene by gas-phase catalytic reduction at elevated temperature, characterized in that the reduction is carried out with an aqueous solution of methanol or formaldehyde without supplying molecular hydrogen to the reaction system. 2. Способ по п.1, отличающийся тем, что восстановление проводят 60-80%-ным водным раствором метанола при мольном соотношении нитробензола и метанола равном 1:1,1-3,5 и температуре 210-270°С.2. The method according to claim 1, characterized in that the recovery is carried out with a 60-80% aqueous solution of methanol with a molar ratio of nitrobenzene and methanol equal to 1: 1.1-3.5 and a temperature of 210-270 ° C. 3. Способ по п.1, отличающийся тем, что восстановление проводят водным раствором формальдегида при мольном соотношении нитробензола и формальдегида равном 1:1,5-4,0 и температуре 210-250°С.3. The method according to claim 1, characterized in that the recovery is carried out with an aqueous solution of formaldehyde at a molar ratio of nitrobenzene and formaldehyde equal to 1: 1.5-4.0 and a temperature of 210-250 ° C. 4. Катализатор для получения анилина и N-метиланилина восстановлением нитробензола водными растворами метанола или формальдегида, содержащий оксиды цинка, меди и хрома на носителе - оксиде алюминия и промотированный оксидами металлов из ряда, включающего железо, марганец, висмут, кобальт и молибден.4. A catalyst for producing aniline and N-methylaniline by reduction of nitrobenzene with aqueous solutions of methanol or formaldehyde, containing zinc, copper and chromium oxides on an alumina support and promoted with metal oxides from a series including iron, manganese, bismuth, cobalt and molybdenum. 5. Катализатор по п.4, отличающийся тем, что содержание цинка составляет 0,1-10% массы катализатора, общее содержание меди и хрома составляет 0,05-15% к массе цинка, а общее содержание остальных металлов составляет 1-3% к массе цинк-медно-хромового компонента.5. The catalyst according to claim 4, characterized in that the zinc content is 0.1-10% by weight of the catalyst, the total copper and chromium content is 0.05-15% by weight of zinc, and the total content of other metals is 1-3% to the mass of zinc-copper-chromium component.
RU2003121732/04A 2003-07-14 2003-07-14 Method for preparing aniline and/or n-methylaniline and catalyst for its RU2259350C2 (en)

Priority Applications (1)

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RU2003121732/04A RU2259350C2 (en) 2003-07-14 2003-07-14 Method for preparing aniline and/or n-methylaniline and catalyst for its

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003121732/04A RU2259350C2 (en) 2003-07-14 2003-07-14 Method for preparing aniline and/or n-methylaniline and catalyst for its

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RU2003121732A true RU2003121732A (en) 2005-02-27
RU2259350C2 RU2259350C2 (en) 2005-08-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ304096B6 (en) * 2012-08-09 2013-10-16 Vysoká skola chemicko-technologická v Praze Process for producing N-methylaniline from nitrobenzene and methanol

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2433116C1 (en) * 2010-05-06 2011-11-10 Государственное образовательное учреждение высшего профессионального образования Волгоградский государственный технический университет (ВолгГТУ) Method of producing aniline and derivatives thereof
RU2472774C1 (en) 2011-09-28 2013-01-20 Закрытое Акционерное Общество "Ифохим" Method for selective production of n-methyl-para-anisidine
CN104402736B (en) * 2014-12-10 2016-04-06 河北工业大学 Benzene and the hydroxylammonium salt of the catalysis of a kind of loading type molybdenum dioxide react the method directly preparing aniline
EP3345890A1 (en) * 2017-01-05 2018-07-11 Lanxess Deutschland GmbH Method for the preparation of n methyl p toluidine for its use as an additive for aviation gasoline
CN109134270B (en) * 2018-10-11 2021-04-13 中国科学院青岛生物能源与过程研究所 A kind of reaction method of nitro compound N-methylation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041377A (en) * 1958-11-17 1962-06-26 Harast Joseph Manufacture of aromatic amines from nitro compounds
DE3207475A1 (en) * 1982-03-02 1983-09-15 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING AROMATIC AMINES
US5496718A (en) * 1992-06-26 1996-03-05 Seikagaku Kogyo Kabushiki Kaisha (Seikagaku Corporation) Chondroitinase ABC isolated from proteus vulgaris ATCC 6896

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ304096B6 (en) * 2012-08-09 2013-10-16 Vysoká skola chemicko-technologická v Praze Process for producing N-methylaniline from nitrobenzene and methanol

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Effective date: 20090715