Patent ID: 7942572

Claim:
A multistage process fly the continuous production of an emulsion comprising as a dispersed phase, a molten adduct of magnesium dihalide-Lewis base, the process comprising subjecting at least two immiscible liquids to a sequence of at least two mixing stages carried out in at least two successive stator-rotor devices each comprising at least one rotor disk and at least one stator, the at least one rotor disk having a peripheral velocity, wherein: a peripheral outlet from a first stator-rotor device is connected to an axial inlet in a successive stator-rotor device by means of a duct having a spiral shape comprising an initial portion and an end portion, in which a Reynolds number Re T inside said duct is higher than 5000, the initial portion of the duct being oriented in a direction substantially tangential to the circumference of the rotor; and the peripheral velocity of each rotor of said stator-rotor devices ranges from 5 to 60 m/s.