METHOD OF OBTAINING OXYGENATES INCREASING EXPLOITATION PROPERTIES OF FUELS FOR INTERNAL COMBUSTION ENGINES (VERSIONS) Russian patent published in 2014 - IPC C10L1/185 C10L1/04 C10L1/10 C10L10/00 C07C43/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of obtaining oxygenates which increase exploitation properties of fuels for internal combustion engines, in which the interaction of glycerol with acetone takes place on an acidic catalyst, with the process taking place on a heterogenic catalyst in one stage in the flow reactor with regulation of a reagent supply in a ratio glycerol:acetone (1):5-20) and support in the reactor of a temperature from 35°C to 55°C, volume rate 0.5-1.5 h^-1 and atmospheric pressure, with obtaining solketal as the main product, and return of acetone that did not react into the reactor. Also described is a method of obtaining oxygenates which increase exploitation properties of fuels for the internal combustion engines, in which the interaction of glycerol with acetone takes place on an acidic catalyst, with additional application of tert-butanol in interaction of glycerol with acetone, and the process takes place on a heterogenic catalyst in one stage in the flow reactor with regulation of a reagent supply in a ratio glycerol:tert-butanol:acetone (1):(3-5):(5-20) and support in the reactor of a temperature from 35°C to 55°C, volume rate 0.5-1.5 h^-1 and atmospheric pressure, with obtaining solketal and tert-butyl ether of solketal as the main products, and return of acetone and tert-butanol that did not react into the reactor.

EFFECT: creation of efficient methods of obtaining environmentally friendly highly active oxygenate additives to automobile and aviation fuels, high-cetane oxygenate additives to Diesel fuels, which do not contain glycerol, due to ensuring complete glycerol conversion in a one-stage process.

2 cl, 1 dwg, 4 tbl