METHOD OF PURIFICATION OF ISOPRENE FROM ACETYLENE HYDROCARBONS

摘要

production of monomers for synthetic rubber, more particularly process of purifying isoprene from acetylene hydrocarbons by hydrogenation. SUBSTANCE: described is method of purifying isoprene from acetylene hydrocarbons by catalytic hydrogenation with hydrogen. Prior to hydrogenation, recycled isoprene containing unreacted hydrogen is added to isoprene in amount which is necessary for diluting acetylene hydrocarbons in isoprene fed for hydrogenation to content of 0.02-0.07 wt.%. EFFECT: higher degree of purification of isoprene and reduced resin formation. 2 cl, 6 ex, 1 tbl