摘要:
An apparatus for the continuous production of spherical polymer beads in a restricted size range. Monomer droplets are produced in said size range by subjecting a fine monomer dispersion containing a controlled amount of a surface protective agent to controlled coalescence during passage through a tube (11) under laminar flow conditions. The monomer droplets are delivered from the tube (11) to the top of a polymerizing column (12) of variable cross-section wherein they undergo suspension polymerization in a laminar liquid stream descending through the column. Further polymerization in a separate reactor (30a, 30b) provides the desired polymer beads.
摘要:
A process and apparatus for the continuous production of spherical polymer beads in a restricted size range. Monomer droplets are produced in said size range by subjecting a fine monomer dispersion containing a controlled amount of a surface protective agent to controlled coalescence during passage through a tube (11) under laminar flow conditions. The monomer droplets are delivered from the tube (11) to the top of a polymerizing column (12) of variable cross-section wherein they undergo suspension polymerization in a laminar liquid stream descending through the column. Further polymerization in a separate reactor (30a, 30b) provides the desired polymer beads.