The invention provides a process for producing an olefin polymerisation
catalyst, comprising an organometallic compound of a transition metal or
of an actinide or lanthanide, in the form of solid catalyst particles,
comprising forming a liquid/liquid emulsion system which comprises a
solution of one or more catalyst components dispersed in a solvent
immiscible therewith; and solidifying said dispersed phase to convert
said droplets to solid particles comprising the catalyst and optionally
recovering said particles.
