CATALYST, METHOD OF PREPARING SAID CATALYST AND METHOD OF PRODUCING DISODIUM SALT OF IMINODIACETIC ACID Russian patent published in 2012 - IPC B01J23/72 B01J37/00 C07C229/08 C07C51/00 C07C229/16 C07C227/02 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing aminocarboxylic acid salts. Described is a catalyst for producing disodium salt of iminodiacetic acid via oxidative dehydrogenation of diethanolamine containing copper, wherein said catalyst is a composite material in form of a microchannel plate consisting of an active copper-containing component and foamed metal, where the active component is pressed into foamed metal. Described is a method of preparing the described catalyst in which an active copper-containing component is fed into pores of the foamed metal by pressing, which results in a composite material in form of microchannel plates. Described is a method of producing disodium salt of iminodiacetic acid via oxidative dehydrogenation of diethanolamine in the presence of a copper-containing catalyst, in which a mixture of diethanol amine, water and sodium hydroxide NaOH is continuously fed into a microreactor containing the catalyst described above.

EFFECT: simple technique of producing a catalyst and possibility of carrying out the process continuously in a flow microchannel using the obtained catalyst.

15 cl, 1 tbl, 29 ex