Hydrothermal Synthesis Reactor

Hydrothermal Synthesis Reactor is used in high pressure digestion vessels, also called dissolving device, pressure digestion capsule, water thermal reactor, digestion capsule, PTFE high pressure vessel. It uses a strong acid or strong base, high temperature and high pressure environment inside the vessel to quickly to break down poorly soluble substances. The reactor is mainly made up of two parts: outer high-quality stainless steel jacket and inner Teflon liner or chamber.

Technical Properties of hydrothermal autoclave reactor

• Material – Outer Body: 304 Stainless Steel
• Material – Inner Chamber: PTFE /PPL
• Volume – 25ml, 50ml, 100ml, 200ml, 500ml, 1000ml
• Parts: Reactor Body, Reactor Lid, Bottom Pad, Top Pad, Liner, Liner Lid
• Working Pressure –  5 MPa / 10MPa
• Max Operating Temperature – ≤ 240 °C (Teflon Liner)
• Safe Operating Temperature – 200 °C (Teflon Liner)
• Max Operating Temperature – ≤ 280 °C (PPL Liner)
• Safe Operating Temperature – 260 °C (PPL Liner)
• Heating/Cooling Rate – ≤ 5 °C (min)

Features of hydrothermal autoclave reactor

• The autoclave body features a quick-opening structure: simple operation, convenient and fast, without the need for any tools.
• Overpressure protection ensures experimental safety: The reactor is equipped with a rupture disk and overpressure protection for automatic pressure relief, ensuring safe operation.
• The autoclave body is made of forged 304 stainless steel: denser material with enhanced corrosion resistance and higher pressure resistance, withstanding pressures of 5 MPa and 10 MPa.
• The liner is made of PTFE material from Daikin, Japan: high strength, high heat resistance, and excellent chemical resistance. A PPL liner is also available upon request, with a maximum temperature resistance of 260°C.

Applications fields of hydrothermal autoclave reactor

• University laboratories
• Quality supervision
• Environmental monitoring
• Health and epidemic prevention

How to use the Hydrothermal Synthesis Reactor?

• Place the hydrothermal reactor on a clean surface. Turn the SS rod counterclockwise, then rotate the screw-type threaded main SS cap counterclockwise until it opens.
• Remove the SS top disc, take out the liner, add the required solvent into the liner, and place it back into the SS outer shell. Then, position the SS top disc and close it with the main cover.
• Finally, fully tighten it using the SS rod and place the reactor into the oven.

Precautions for Using the Hydrothermal Autoclave Reactor

1. Before using the hydrothermal autoclave reactor, carefully check the saturated vapor pressure of the solvent at the reaction temperature. Ensure that it does not exceed the reactor’s maximum allowable pressure before use.
2. When using the hydrothermal synthesis reactor, note that the inner liner is made of PTFE, which has a certain degree of compressibility under high-temperature and high-pressure conditions. For first-time use, do not overtighten the reactor lid or the top tightening screws to avoid severe deformation of the liner due to thermal expansion and extrusion.
3. Properly cleaning the PTFE reaction vessel before use can help prevent contamination.
4. When the operating temperature of the hydrothermal autoclave reactor exceeds 150°C, it is recommended to apply a layer of high-temperature lithium-based grease to the threads before tightening the reactor lid. This prevents thread galling of the stainless steel under high temperatures. (For models with a silver-plated reactor lid, lubrication is not required.)
5. Do not use the hydrothermal autoclave reactor under the following conditions:

1. The solvent has a boiling point below 60°C (e.g., ether, acetone, dichloromethane, etc.).
2. The reaction generates a large amount of gas.
3. The materials used are flammable, explosive, or classified as highly or extremely hazardous toxic substances.