Flow multi-laminating mixing

Separation layer mixers use either a miscible or non-miscible layer between the reacting solutions, in the first case most often identical with the solvent used [48]. By this measure, mixing is postponed to a further stage of process equipment. Accordingly, reactants are only fed to the reaction device, but in a defined, e.g. multi-lamination-pattem like, fluid-compartment architecture. A separation layer technique inevitably demands micro mixers, as it is only feasible in a laminar flow regime, otherwise turbulent convective flow will result in plugging close to the entrance of the mixer chamber. 

Star laminators are high-capacity multi-lamination micromixers. Unlike the other mixers discussed here, these devices often exhibit a turbulent flow regime caused by their large flows and internal volume. They are made by stacking plates with characteristic star-like openings. Mixers using this configuration have been reported to effectively mix 3.5 m h [65]. 

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