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Resonant Acoustic Mixing: Redefining
Mechanochemical & Green Synthesis

Solvent-Free Organic Synthesis, Cocrystallization, and Catalysis with ResonantAcoustic® Technology

Our customers include:

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DOW logo
Sabic logo
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Exxon Mobil logo

Note: customer logos are registered trademarks for their respective organizations and do not constitute and endorsement.

Resonant Acoustic Mixing (RAM) has become the platform of choice for mechanochemists worldwide — and for good reason. RAM requires no grinding media, no bulk solvents, and no elevated temperatures, delivering precisely controlled mechanical energy uniformly throughout the entire reaction vessel. The result is faster, cleaner, and more scalable mechanochemical synthesis than any conventional method can achieve.

Dr. Tomislav Friščić, Leverhulme International Professor in Green and Sustainable Chemistry at the University of Birmingham and one of the most cited mechanochemists in the world, has called RAM a transformational technology for the field. His work — alongside collaborators at McGill University, Genentech, and institutions across the globe — has demonstrated RAM's ability to perform reactions previously accessible only by ball milling, while adding capabilities ball milling cannot match: precise energy control, seamless scale-up, and zero contamination from grinding media.

  • No grinding media — eliminates contamination and particle damage
  • Precise, tunable — control acceleration to tailor reactions
  • Impossible reactions — chemistry that does not occur in conventional solvent environments
  • Faster than ball milling — reactions completed in minutes rather than hours
  • Scalable to high production — without reoptimization
  • Continuous processing available — for high-throughput and industrial-scale synthesis
  • Vacuum and inert atmosphere — process air- and moisture-sensitive materials without modification
LabRAM II used for mechanochemical research

Chemical Mixer Testimonials

“ResonantAcoustic® Mixing (RAM) enables mechanochemical organic synthesis that avoids milling or crushing media, as well as bulk solvents. The RAM methodology enables significant simplification and improvement of mechanochemical olefin metathesis, the first mechanochemical strategy for ene-yne metathesis, and permits the direct, 200-fold scaling-up of the mechanochemical synthesis of pharmaceutically active sulfonylureas, without any significant changes to reaction conditions or conversion. ” 

- Angewandte Chemie International Edition, 2022

“Our Testing with ResonantAcoustic® technology has demonstrated filler incorporation at phenomenal rates and with very little viscous heating. This technology could have a far broader impact on the Chemical Industry than anyone is imagining today”

- Senior Process engineering specialist – Global Chemical Company

“The use of resonant acoustic mixing as a simple, rapid and readily scalable methodology for synthesizing metal–organic frameworks of different levels of complexity, including two- and three-dimensional networks, has been demonstrated” 

–Chemical Science, 2020

RESONANT ACOUSTIC APPLICATIONS IN MECHANOCHEMISTRY

RAM is the mechanochemistry mixer capable of performing the full spectrum of solvent-free and solvent-minimized chemical synthesis. Here are the most documented applications where RAM has demonstrated clear advantages over ball milling and conventional solution chemistry:

Organic Synthesis

Cocrystallization

Materials Synthesis

Milling & Activation

  • Metal-catalyzed C–N cross-coupling (nickel-catalyzed amination)
  • Copper-catalyzed sulfonamide-carbodiimide coupling
  • Copper-catalyzed alkyne-azide click chemistry (CuAAC)
  • Ruthenium-catalyzed ring-closing metathesis
  • Ene-yne metathesis
  • High-throughput experimentation (HTE) screening
  • Pharmaceutical cocrystals and salt forms
  • Halogen-bonded cocrystalline architectures
  • Polymorph control via liquid-assisted RAM (LA-RAM)
  • Scale-up cocrystallization from lab to multi-ton production
  • Stoichiomorphic cocrystals exclusive to RAM
  • Metal-organic framework (MOF) synthesis (Zn, Co, Cu systems)
  • ZIF-L and novel MOF frameworks inaccessible by other methods
  • Coordination polymers and mixed-ligand systems
  • Energetic cocrystals (CL-20:HMX)
  • Media-free particle size reduction
  • Mechanochemical activation of reaction precursors
  • Liquid-assisted grinding (LAG) without grinding media
  • Simultaneous milling and reaction in a single vessel

RAM Compliance in Mechanochemistry

RAM mechanochemistry mixers are designed for the full range of synthetic chemistry environments, including reactive, air-sensitive, and hazardous material processing. Discuss your specific application requirements with a sales engineer.

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Continuous Process icon RAM
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VALIDATING RAM FOR CHEMICAL MIXING AND PROCESSING

Switching your chemical processing technology is a significant decision. RAM is available for evaluation and validation through a low-risk, step-by-step process designed to build your confidence before you commit.

  1. Demonstration
    A sales engineer will arrange an online demonstration via conference call to show you a lab scale version or
    RAM so you can see for yourself how it works. In some locations, we can offer in-person visits.
  2. Free material testing
    We can arrange a free mix, coating, milling, or reaction test with your material or a suitable surrogate. You
    send us the material, we process it, document it, and send it back to you for validation. Material SDS required,
    no hazardous materials accepted.
  3. Rental program
    We offer the LabRAM I for a monthly rental, with the first month’s rent applying to the cost of a purchase. Try
    RAM out in your lab and run as many tests as you would like.
  4. Quotation
    Once you have had time to evaluate RAM through either a demonstration, mix test, or rental, we will provide a
    quote that matches your application needs, however simple or complex they may be.
  5. Performance Testing
    After purchase, we can also perform validation and testing (FAT, SAT, etc) of your new machine per your
    requirements, including compliance, performance, quality, and safety tests prior to or post installation.
RAM 5 in Pharmaceutical Production
Customer performs Factory Acceptance Test (FAT) at Resodyn prior to shipping new RAM5 automated system

Patents Featuring RAM Technology

Seal of the United States Patent and Trademark Office

Many of our customers discover that RAM mixing, milling, coating, and chemical reaction technology is so powerful, they apply for US and International patents to protect their process design and newfound competitive edge.

Key examples include:

Research Featuring RAM Technology

Mechanochemical Synthesis of Boroxine-linked Covalent Organic Frameworks

Enhancement of Co2 Adsorption Kinetics Onto Carbon by Low-Frequency High Amplitude Resonant Vibrations

Solvent-free surface modification of milled carbon fiber using resonant acoustic mixing

Halogen-bonded cocrystals via resonant acoustic mixing

Resonant acoustic mixing (RAM) for efficient mechanoredox catalysis without grinding or impact media

Ball-free mechanochemistry: in situ real-time monitoring of pharmaceutical co-crystal formation by resonant acoustic mixing

Milling Media-Free Suzuki Coupling by Direct Mechanocatalysis- From Mixer Mills to Resonant Acoustic Mixers

Direct mechanocatalysis by resonant acoustic mixing (RAM)

The “η-sweet-spot” (ηmax) in liquid-assisted mechanochemistry: polymorph control and the role of a liquid additive as either a catalyst or an inhibitor in resonant acoustic mixing (RAM)

Application of resonant acoustic mixing in the synthesis of vitamin C–nicotinamide variable stoichiometry cocrystals

Tinkering with Mechanochemical Tools for Scale Up

Metal‐Catalyzed Organic Reactions by Resonant Acoustic Mixing

Resonant acoustic-mixing technology as a novel method for production of negative-temperature coefficient thermistors

Time‐resolved in situ monitoring of mechanochemical reactions

Application of mechanochemical activation in synthetic organic chemistry

Simple, scalable mechanosynthesis of metal–organic frameworks using liquid-assisted resonant acoustic mixing (LA-RAM)

Mechanochemistry for organic chemists: An update

High-throughput screening and scaleup of cocrystals using resonant acoustic mixing

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