PYRIDINES PRODUCTION METHOD Russian patent published in 2019 - IPC C07D213/09 

Abstract RU 2688680 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing pyridine and methylpyridines, which comprises reacting ethanol, formaldehyde and ammonia in presence of 100 % water vapor, preliminarily subjected to high-temperature treatment, at 550 °C for 3 hours and subsequent treatment 0.3 n. solution of citrate acid Beta in H-form at 200–400 °C and bulk feed rate (w) equal to 2–10 h-1, ethanol:formaldehyde:ammonia molar ratio is 1.0:0.5–1.1:1.5.

EFFECT: novel method of producing a pyridine fraction with high content of picolines and lutidine and low content of "heavy" compounds in the reaction products, which are the cause of coke formation and rapid deactivation of the catalyst.

1 cl, 1 tbl, 7 ex

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RU 2 688 680 C1

Authors

Dzhemilev Usein Memetovich

Kutepov Boris Ivanovich

Grigoreva Nellya Gennadevna

Bikbaeva Vera Rafaelevna

Bubennov Sergej Vladimirovich

Kostyleva Svetlana Alekseevna

Khazipova Alfira Nailevna

Dates

2019-05-22Published

2017-12-25Filed