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The hydrothermal reactor, also known as a polymerization reactor, can be manually tightened with a screw mechanism. Its maximum operating temperature reaches 230°C, while its highest applicable temperature is 180°C. It is also referred to as a high-pressure digestion vessel, digestion tank, pressure autoclave, digestion pot, hydrothermal synthesis reactor, laboratory reactor, hydrothermal synthesis vessel, high-pressure vessel, or simply reactor. The hydrothermal reactor is a sealed container capable of decomposing insoluble substances. It is widely used in sample preparation for analytical techniques such as atomic absorption spectroscopy and plasma emission spectrometry. By creating a highly acidic or alkaline environment within the vessel under high temperature and pressure conditions, it enables rapid digestion of even the most refractory materials. Additionally, it can be employed for small-scale synthesis reactions. Consequently, it finds extensive application in production and research across various fields including biomedicine, petrochemicals, materials science, environmental science, food science, geochemistry, and commodity inspection. The hydrothermal reactor is an ideal tool for digesting samples when determining trace and ultra-trace elements. It can be utilized in the determination of heavy metals such as lead, zinc, calcium, copper, cadmium, iron, manganese, and mercury, as well as in hydrothermal synthesis, organic synthesis, sample digestion and extraction, and crystal growth. Moreover, it serves as a highly corrosion-resistant, high-temperature, and high-purity reaction vessel suitable for pre-treatment and digestion of agricultural residues, sludge, aquatic products, food, heavy metals, organic compounds, rare earth elements, and other materials. Key features of the hydrothermal reactor include: 1) No harmful substances are released; it exhibits excellent corrosion resistance, ensuring safe use and minimizing pollution. 2) After pressurization and heating, it can rapidly dissolve, without loss, samples containing volatile elements and those that are notoriously difficult to dissolve under normal conditions. 3) The hydrothermal reactor boasts a rational design, an attractive appearance, simple operation, reliable data, and shortened analysis times. 4) The hydrothermal reactor can replace platinum crucibles to address the challenge of sample digestion in the analysis of trace elements in high-purity alumina. It is equipped with a polytetrafluoroethylene (PTFE) liner inside, which provides resistance to acids, bases, and other corrosive agents, along with double-layer protection.

Hydrothermal reactor