CONVERSION OF GLYCOLALDEHYDE WITH AMINATION AGENT Russian patent published in 2016 - IPC C07C209/26 C07C213/02 C07C215/08 C07C211/10 

FIELD: chemistry.

SUBSTANCE: invention relates to improved method for converting glycolaldehyde with amination agent in presence of hydrogen, catalyst and solvent. Catalyst is activated by reduction of catalyst precursor or by reduction of passivated catalyst and glycolaldehyde is brought in contact with activated catalyst. To carry out the process activated catalyst is used during and after reduction before bringing into contact with glycolaldehyde under inert conditions. Catalyst contains less than 0.4 mol % of atoms of noble metal, selected from the group, consisting of ruthenium, rhodium, palladium, silver, rhenium, osmium, platinum, gold and mercury. As catalytically active components catalyst precursor contains one or several oxides of metals Ni, Co and/or Cu. Conversion is carried out at temperature from 15 to 350°C under pressure from 10 to 350 bar. Tetrahydrofurane or water is a preferable solvent. Activated catalyst, possessing reduction degree of 30% or higher, is usually used for the process. Activated catalyst, obtained by reduction of passivated catalyst, after activation possesses reduction degree, at least by 2% higher than reduction degree of passivated catalyst.

EFFECT: method makes it possible to simplify the process due to possibility to reduce precursor in the same reactor which is used for reaction with glycolaldehyde; in addition, method makes it possible to increase output of ethanolamine, which represents main product, obtained in the process (to 72% and higher instead of 34-44% by known method).

7 cl, 2 tbl, 16 ex