FIELD: chemistry.
SUBSTANCE: invention relates to the method of obtaining isoprene. This method includes liquid-phase interaction of formaldehyde with isobutylene in the circulating aqueous medium in the presence of an acidic catalyst in two steps, with the use of the circulating inert organic solvent for the isolation of isoprene. This process in, both steps, is carried out in countercurrent reactors. Use in the process isobutylene containing raw material enlarges the raw material base and improves the parameters of the efficiency of the method.
EFFECT: obtaining isoprene with mass pureness of more than 99%.
10 cl, 2 dwg
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