Process and device for manufacturing organometallic complexes in powder form

摘要

Preparing a crystalline organometallic complex in powder form, comprises: preparing an aqueous solution of the organometallic complex; granulating and drying the solution by spraying in a fluidized bed (7) by airflow (30); and extracting powder grains from the fluidized bed when grains reached a size of greater than 80 microns and a humidity rate of less than 20 wt.%. Independent claims are included for: (1) a device for the implementation of the process comprising a mixer (50) and means of heating and temperature regulation for producing a homogeneous aqueous solution of organometallic complex at suitable temperature, a system for spraying in fluidized bed (7), with an enclosure (10) and means (8) for creating an ascending suspension of air flow (30) in enclosure (10), and with the means for receiving a flow of the aqueous solution of organometallic complex from the mixer (50), and for spraying in the enclosure, means of extraction for extracting the grains of powder having a size of greater than 80 microns and rate of humidity of less than 20 wt.%, from the fluidized bed; and (2) a crystalline organometallic complex in powder form obtained by the process, where the grains of powder have a size of greater than 80 microns.