Montana Patent of the Month – May 2021

A continuous acoustic mixer (CAM) uses acoustic energy to mix, react, coat, or combine materials as they pass through the device. Generally, CAMs process materials more quickly and uniformly than batch mixers. Resodyn Corp. specializes in the discovery and commercialization of new technologies to solve some of today’s most challenging problems. They have recently been working on developing a continuous acoustic chemical microceator with improved operating conditions and a more easily scalable design.

The device uses a continuous processing system that resonantes at low-frequencies and produces large vibrational amplitudes. These large amplitudes create a strong sinusoidal acoustic field within the mixing reactor and provide efficient and intense mixing and reacting. This low frequency acoustic agitation (LFAA) puts large mechanical stress on the system, but if the process vessel is oscillated at a similar resonance, the functionality is incredibly efficient. Since LFAA uses frequencies that are magnitudes lower than ultrasonic frequencies, the material can better absorb and disperse the energies to facilitate mixing or reacting. A microreactor is obviously small, and allows for sufficient heat transfer to produce exothermic reactions. In Resodyn’s continuous acoustic chemical microreactor, they elongated certain components of the reaction vessel to make room for the reactants and the device that imparts the acoustic energy. The acoustic agitator uses LFAA along the elongated tube, allowing for efficient reaction in the process reactor. This method creates a reliable and consistent reaction within an incredibly efficient system. This reliability and efficiency means that Resodyn’s device can be scaled to projects of nearly any size.

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