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Shanghai Jieti Instrument Equipment Co., Ltd
Working principle and characteristics of ultrasonic reactor
Date: 2025-06-18Read: 14
The ultrasonic reactor significantly accelerates the chemical reaction process by introducing ultrasonic energy into the reaction system and utilizing acoustic effects. Its working principle and core characteristics are as follows:
1、 Working principle
1. Cavitation effect dominates
Ultrasonic waves generate high-frequency vibrations (usually ≥ 20kHz) when propagating in liquid media, causing periodic compression and expansion of the liquid, forming micro scale cavitation bubbles. These bubbles collapse violently under the action of sound pressure (<10 microseconds), instantly generating high temperatures of about 5000K, high pressures of 1000atm, and micro jet shock waves of up to 100m/s.
2. Triple effect synergy
Mechanical vibration: enhances molecular motion and collision frequency, improves mass transfer efficiency;
Local thermal effect: high temperature at the cavitation point promotes molecular activation and chemical bond breaking;
Dispersion activation: Shock waves disrupt the solvent structure, achieving nanoscale particle dispersion (such as graphene exfoliation) and activating reaction sites.
2、 Core Features
1. Efficient reaction acceleration
Shorten time consumption: reduce chemical reaction time by more than 50%, for example, increase biodiesel synthesis rate by 20-60%;
Low temperature advantage: The reaction temperature is reduced by 30-60 ℃ to protect thermosensitive components (such as active ingredients in traditional Chinese medicine);
Energy saving and consumption reducing: Reduce raw material consumption (such as saving 30% methanol in biodiesel synthesis).
2. Intelligent control capability
Adaptive adjustment: automatically tracks the resonance point and compensates for amplitude fluctuations to ensure stable energy output;
Precise pulse control: supports intermittent operation from 0.5 seconds to 1 hour to prevent sample overheating;
Multiple protection mechanisms: integrated overload protection, temperature alarm, and fault self diagnosis functions.
3. Multi functional adaptability
Flexible scale: Processing capacity covers 0.05L to 100L, supporting laboratory to pilot production;
Multi frequency probe configuration: optional 2mm/6mm/10mm probes, suitable for trace samples and industrial scale;
Compatible with extreme conditions: It can operate in high temperature and high pressure environments (such as hydrogenation reactions) and can work in conjunction with mechanical agitation.
4. High precision processing effect
Wall breaking and dispersion: Cell wall breaking rate>99%, uniform particle dispersion (liposome particle size 10-90nm);
Precision temperature control: The temperature control accuracy reaches ± 1 ℃, combined with external ice bath protection for sensitive samples;
Cleaning treatment: Ultrasonic convection eliminates mixing dead corners and improves reaction uniformity.
3、 Typical application scenarios:
Biopharmaceuticals: cell lysis, liposome preparation, natural product extraction;
Nanomaterials: graphene exfoliation, metal particle nanomaterialization, and alumina dispersion;
Green chemistry: catalytic reaction enhancement, polymer degradation, and emulsion homogenization.
