The invention discloses a technology for producing
polybutylene-1 through a continuous method. The technology comprises the following steps that
butene-1 is taken as a
raw material in a prepolymerization kettle,
titanium serving as a catalyst,
aluminum alkyl serving as a cocatalyst,
silane serving as an
electron donor and
hydrogen serving as a molecular weight
regulator enter the prepolymerization kettle through a quantifier and then enter a
slurry polymerization reaction kettle after being prepolymerized for 5-15 minutes, and
slurry polymerization is performed at the temperature of 25 DEG C-55 DEG C under the pressure of 0.6 MPa-1.6 MPa;
slurry liquid generated through slurry
polymerization enters a gas-phase horizontal reaction kettle with the help of the
differential pressure, gas-phase polymerization is performed at the temperature of 30 DEG C-60 DEG C under the pressure of 0.5 MPa-1.5 MPa, and gasified
butene-1 is condensed through a condenser and then sent back to the gas-phase horizontal reaction kettle; gas-
solid separation is performed; slurry liquid generated through gas-phase polymerization enters a material receiving tank,
pressure reduction and separation are performed, and the
polybutylene-1
powder is obtained. According to the technology and device for producing the
polybutylene-1 through the continuous method, the requirement for equipment is low, no
solvent removing process exists, and the device is simple in process, easy to operate and smooth and steady in operation.