Micromixer

US6982064B1 · kind B1 · utility

Assignee

• Institut für Mikrotechnik Mainz GmbH · DE

Inventors

• Wolfgang Ehrfeld · Karlsruhe, DE
• Frank Michel · Rosbach, DE
• Astrid Lohf · Erlangen, DE
• Volker Graeff · Mainz, DE

Key dates

• Filing date: Jun 10, 2000
• Grant date: Jan 3, 2006
• Expiry date: Jan 29, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W28/24
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Known static micromixers that work according to the principle of multilamination allow for a rapid mixing by diffusion. The invention provides a means for substantially increasing the throughput of known micromixers. To this end, the inventive micromixer for mixing two or more reactants comprises microstructures that define mixer cells. Each of said mixer cells is provided with a feeding chamber which adjoins at least two groups of digital channels. Said channels intermesh with the digital channels of the groups adjoining the feeding channels in a comb-like manner, thereby producing mixing zones]. Outlet ports are located above said mixing zones, said outlet ports extending perpendicularly to the digital channels and discharging the product. The inventive micromixer is especially useful for the large-scale production of mixtures, dispersions and emulsions.