Process for the synthesis of 3-methyl-pyridine

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United States of America Patent

PATENT NO 9701634
APP PUB NO 20110003997A1
SERIAL NO

12822770

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Abstract

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The present invention discloses a process for the synthesis of 3-methyl-pyridine from formaldehyde, paracetaldehyde, ammonia and acetic acid, whereby said compounds are reacted and said process comprises the following parameters:

    a) a reaction temperature of 260-300° C.;b) a molar ratio of formaldehyde and paraldehyde (calculated as acetaldehyde) of 0.7-1.4 mol/mol:c) an ammonia concentration of 10-20 weight-%d) an acetic acid concentration of 4-20 weight-%e) a paraldehyde (calculated as acetaldehyde) concentration of 0.4-1.6 Mol/kgf) a retention time of 10-30 minutes in case of a continuous reaction and 10-90 minutes in case of a discontinuous reaction; andg) a reaction pressure of 30-130 bar.

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Patent Owner(s)

Patent OwnerAddress
LONZA LTDLONZASTRASSE VISP 3930

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
De, Riedmatten Jean-Yves Uvrier, CH 1 0
Roederer, Detlef Brig, CH 1 0
Zollinger, Daniel Sierre, CH 4 1

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