synthesis processes of an earth organophosphate for and preparation of a preformed catalytic system, and neodymium organophosphate in solution.

摘要

The invention relates to a process for preparing a rare-earth organophosphate in the form of a fluid or not very viscous solution that can be used as is for the preparation of a preformed catalyst system intended, in particular, for the cis-1,4 stereospecific polymerization of conjugated dienes.