Product Description
The multi frequency ultrasonic CO2 supercritical ultra-high pressure reaction system is a new product developed by our company in collaboration with the Institute of Materials Science at Sun Yat sen University after many years of cooperation. It is the first to combine multi frequency ultrasonic waves with supercritical CO2 and has obtained multiple national inventions. Supercritical CO2 is non-toxic and environmentally friendly, with gas like diffusivity and liquid solubility, as well as low viscosity and surface tension. It is widely used in pharmaceuticals, chemicals, food, light industry, environmental protection, and other fields. Ultrasonic waves are sound waves with frequencies higher than 15kHz, which have good directionality and strong penetration ability. They have many applications in medicine, military, industry, and agriculture. Ultrasonic waves have excellent properties such as mechanical effects, thermal effects, and physicochemical effects (including dispersion, thixotropy, and cavitation), which can not only improve the diffusion rate of supercritical fluids in polymers, but also play a role in heterogeneous nucleation.This product is a combination of multi frequency ultrasound and supercritical CO2, which can enhance the solubility and permeability of supercritical CO2 compared to single supercritical CO2 extraction and foaming equipment. This product also has adjustable ultrasonic frequency and quantity, adjustable internal volume of the reaction vessel, adjustable gas release rate, and mechanical stirring and rapid heating functions. This product can be widely used in industrial production and scientific research of organic compounds, inorganic compounds, and polymer chemical reactions using supercritical CO2 as a solvent. It can also be used as a foaming agent to foam thermosetting polymers and thermoplastic polymers, as well as in the extraction industry.
The multi frequency ultrasonic supercritical CO2 polymerization reaction system mainly includes a gas supply group, a gas-liquid separation group, a pressurization group, a preheating group, and a multi frequency ultrasonic supercritical CO2 high-pressure reactor. Multi frequency ultrasonic supercritical CO2 high-pressure reactor: composed of a multi frequency ultrasonic generator, a high-pressure reactor, a mechanical stirrer, a heating sleeve, a rapid relief valve, a muffler, a feeding tank, a high-pressure valve, standard part molds, and filling blocks.
Features
Product features:
The ultrasonic CO2 supercritical and ultra-high pressure reaction system greatly improves the extraction and diffusion rate of supercritical CO2 by utilizing the characteristics of ultrasonic waves. This device can be widely used in industries such as extraction, chemical reactions, and polymer foaming using supercritical CO2 as a medium.
The number and power of ultrasonic waves can be adjusted: 1 to 4 ultrasonic waves can be turned on simultaneously, and the frequency range of ultrasonic waves can be selected from 15 to 40KHz.
The internal volume of the high-pressure reactor is optional.
The high-pressure reactor is equipped with two stirring methods: mechanical and ultrasonic.
There is no sonic boom phenomenon during the release of supercritical CO2, and the release rate can be adjusted with a control range of 10MPa/s~0.5MPa/s.
The high-pressure reactor adopts a dual system of heating and low-temperature cooling, and is equipped with high-precision probing sensors for temperature measurement, which can accurately control the temperature of the reaction process; Control range: -15~400 ℃, control accuracy: ≤ ± 0.5 ℃.
The internal accessories of the high-pressure reactor can be removed according to different applications for convenient use.
Configuration List of Ultrasonic CO2 Supercritical and Ultra High Pressure Reaction System:
Operation steps of ultrasonic CO2 supercritical and ultra-high pressure reaction system:
1. The reaction kettle, cooling tank, and constant temperature tank are all open
2. Set 50 degrees
3. Two hours later, open the steel cylinder for air intake,
4. Start the metering pump in ten minutes.
5. Once the desired pressure is reached, turn off the metering pump and then close all valves.
6. Then turn on the ultrasonic and enter the running state.
7. Turn off the ultrasonic waves and release the air. End the experiment.
8. For safety reasons, the pressure should not exceed 20MPa during operation.
Attention to things:
1. Preheat the reaction vessel for 2 hours before pressurization.
2. The temperature cannot exceed 100 degrees.
3. What temperature should be set for the constant temperature water bath in the reaction kettle.
4. Working below 50 degrees, not exceeding 10 MPa, pressure above 7.5 MPa, and above 35 degrees is in a supercritical state.
5. No one is allowed to walk away during the pressurization process.
6. Pump for 10-15 minutes.
7. Continuous pressurization is not allowed, and each experiment must be separated for at least two hours, as dry ice can block it.
8. The other thing is to pay attention to safety.