METHOD FOR MANUFACTURING A DROP DISPERSION FROM A FIRST PHASE IN A SECOND IMMISCIBLE PHASE BY FRAGMENTATION OF A JET AND COACERVATION

摘要

A method of manufacturing a dispersion (5) comprising drops (17) of a first phase (10), the dispersion further comprising a second phase (15) substantially immiscible with the first phase and in which the drops are dispersed, comprising at least the following steps: - flow of a first liquid (27) comprising the first phase in a first conduit (43); - flow of a second liquid (31) comprising the second phase in a second conduit (45) concentrically surrounding the first conduit; the first liquid further comprising at least one first polymer and the second liquid further comprising at least one second polymer capable of reacting with the first polymer to form a coacervate layer, and / or the first liquid further comprising at least one agent gelling agent; obtaining a liquid jet (23) at the outlet of the second conduit in a gaseous atmosphere (64); fragmenting the liquid jet in the gaseous atmosphere and obtaining composite drops (24) comprising an outer layer formed by the second liquid; - Formation of a bark (19) by coacervation, and / or gelation of the first phase by the gelling agent; and recovering the composite drops and obtaining the dispersion, the outer layer being added to the second phase by coalescence.