The invention relates to a
quaternary phosphonium salt
organic polymer catalyst, a preparation method thereof, and applications of the
quaternary phosphonium salt
organic polymer catalyst in cyclic carbonates production. The
quaternary phosphonium salt
organic polymer catalyst is prepared via following steps: self-
polymerization of an olefin functionalized quaternary
phosphonium salt or mixing-
polymerization of the olefin functionalized quaternary
phosphonium salt with a cross-linking agent is carried out so as to obtain an organic
polymer; a Lewis acid is added into the organic
polymer, or noLewis acid is added into the organic
polymer, wherein when the Lewis acid is added, coordination reaction of
metal ions in the Lewis acid with N and / or P in the quaternary
phosphonium salt organic polymer is realized; and an obtained product is the quaternary phosphonium salt organic polymer catalyst. The quaternary phosphonium salt organic polymer catalyst is a heterogeneous catalyst, is suitable to be used in reactors such as
fixed bed reactors,
slurry bed reactors, kettle-type reactors, and
trickle bed reactors, possesses excellent
catalytic effect in production of cyclic carbonates via
addition reaction of an
epoxy compound with CO2, is relatively high in catalytic activity, high in selectivity in cyclic carbonates production, high in substance applicability, and high in catalyst stability, and can be separated from reactants and products easily.