METHOD OF PRODUCING DIVINYL (VERSIONS) Russian patent published in 2012 - IPC C07C1/20 C07C11/167 B01J23/06 B01J23/04 B01J21/12 B01J21/14 

FIELD: chemistry.

SUBSTANCE: invention relates to a method (versions) of producing divinyl by converting ethanol in the presence of an oxide catalyst, containing zinc oxide and γ-aluminium oxide, characterised by that the catalyst further contains calcium oxide, silicon dioxide and magnesium oxide, with the following initial composition in wt %: ZnO - 25-35, SiO₂ - 3-5, MgO -3-5, K₂O - 1, γ-Al₂O₃ - the balance. The other version of the invention employs the same catalyst, but ethanol is converted via chemical initiation in the presence of hydrogen peroxide, taken in an amount which ensures content thereof in ethanol of 0.8-1.5 wt %.

EFFECT: use of the present invention increases selectivity of the process with respect to divinyl, output of the product per cycle and efficiency of the catalytic process overall.

2 cl, 1 tbl, 6 ex