MIXING DEVICE FOR MIXING TWO LIQUIDS AND PROCESS FOR THE CONTINUOUS PREPARATION OF ORGANIC MONO-, DI- OR POLYSOCIANATES

A device for mixing two liquids containing fast reacting components, particularly mono-, di- or polyamine and phosgene or solutions thereof, the device comprising an inner flow path (1) for a first liquid and an outer flow path (9) for a second liquid, said flow paths (1, 9) are coaxially disposed and interconnected by at least one through opening formed on a wall portion of the inner flow path (1), and the downstream end (6) of the inner flow path (1) is closed, and said through opening is a nozzle (N) provided on the wall of the inner flow path (1) between the closed downstream end (6) and the upstream end (3) thereof. The invention also discloses a process for continuous preparation of an organic mono-, di, or polyisocyanate achieved by the device according to the invention.