PROCESS FOR THE RECOVERY OF BUTENE-1

摘要

Butene-1 for polymn. was recovered from no-isobutene C4 fraction. Distn. performed in 1st distn. tower of 5-20 absolute pressure, fraction contg. residual oil were distilled in 2nd distn. tower of 3- 10 absolute pressure. Tower fractions are injected into selective hydrogenation equipment of butadien and acetylene derivs. for reducing these compds. to 30-200 ppm. Debouches from the selective hydrogenation equipment are finally poured into distn. tower of 3-10 absolute pressure for recovery of Butene-1.