A method for producing a carbonic ester, comprising: (1) performing a
reaction between an organometal compound mixture and carbon dioxide, the
organometal compound mixture comprising a reactive organometal compound
and an unregenerable unreactive compound derived from the reactive
organometal compound, to thereby obtain a reaction mixture containing a
carbonic ester, the unregenerable unreactive compound, and a regenerable
metamorphic organometal compound derived from the reactive organometal
compound, (2) separating the reaction mixture into a first portion
containing the carbonic ester and the unregenerable unreactive compound,
and a second portion containing the regenerable metamorphic organometal
compound, and (3) reacting the second portion of the reaction mixture
with an alcohol to form an organometal compound mixture and water and
removing the water from the organometal compound mixture, the organometal
compound mixture comprising a reactive organometal compound and an
unregenerable unreactive compound derived from the reactive organometal
compound.