METHOD OF OBTAINING ETHYLENE AND OTHER OLEFINS FROM WATER SOLUTIONS OF RELATED ALCOHOLS Russian patent published in 2017 - IPC C07C1/24 C07C11/04 C07C11/06 C07C11/08 

FIELD: chemistry.

SUBSTANCE: method includes stages: the preparation does not contain solids aqueous alcohol or alcohols, passing this solution through a reactor filled with a fixed bed catalyst so that this solution when passing through the reactor is in contact with the catalyst at a temperature of at least 300°C and a pressure of at least 220 bar in such a combination of temperature and pressure that alcohol or alcohols undergo transformation under supercritical conditions, with a length of stay of a solution in a reactor is from 5 to 300 sec, and passing the resulting two-phase mixture in a separator, in which there is a separation of the mixture to gas phase and liquid olefin raw water phase. The catalyst is selected from oxides of the cations three main groups, as well as side groups with the 4th to 6th Periodic insoluble metal phosphates and phosphates, semimetals, as well as porous materials which is selected from pumice, and coal, in which the surface is covered with groups of inorganic acids.

EFFECT: method with a high degree of conversion makes it possible to provide a low number of adverse reactions.

29 cl, 7 ex, 2 dwg