What Is The Principle Of Hydrothermal Autoclave?

Hydrothermal synthesis autoclave reactor, referred to as hydrothermal reactor, is a chemical reaction equipment under high temperature and high pressure conditions. It is widely used in many fields, such as petrochemical, biomedical, materials science, geochemistry, environmental science and food science. Hydrothermal synthesis autoclave reactor can also be used for sample pretreatment in chemical analysis methods such as gas phase, liquid phase, plasma spectrometry mass spectrometry, atomic absorption and atomic fluorescence, and is a helpful assistant for sample digestion in the determination of trace elements and trace elements. At the same time, it can also be used as a kind of high temperature, high pressure, anticorrosive and high purity reaction vessel, which plays an important role in organic synthesis, hydrothermal synthesis, crystal growth or sample digestion and extraction.

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In the high temperature and high pressure environment, the physical properties of the material may change, such as density, viscosity, solubility, etc., these changes help the mixing, dissolution and reaction of the material, which is a physical change. At the same time, the material will also undergo chemical changes. Under conditions of high temperature and pressure, chemical bonds in the material may break and recombine to form new compounds or crystals, and during the reaction process may produce gaseous, liquid or solid products that can be collected and processed through subsequent separation and purification steps.

 

 Storage and operating environment: Hydrothermal autoclave should be stored indoors, and ensure that the equipment address ventilation is good. When multiple reactors are equipped, they must be stored separately, and each operation room must have an exit directly to the outdoor or safe passage.

Check and preparation: Before operation, check whether the reactor's rotating body is running easily, and whether the movable components and fixed stationary contacts on the control panel and rear panel are normal. At the same time, it is necessary to ensure that the working ambient temperature of the reactor is 10 to 40 ° C, the air humidity is less than 85%, and the surrounding medium is free of conductive dust and corrosive gases.

Caulk loading and sealing: When loading the caulk cover, the middle surface of the caulk cover should be avoided to bump against each other. Place the kettle cover carefully on the kettle body according to the fixed part, and gradually tighten the main nut in fractions and symmetrically according to the top Angle, with symmetrical force, and do not allow the kettle cover to tilt to one side to ensure good sealing effect.

Operation and cooling: During the operation, the reaction temperature, pressure and stirring speed should be monitored and adjusted in real time. After the operation is completed, it can be cooled by natural water, cooled by cooling water or placed in the support aerial cooling. After the temperature drops, the pressurized steam body in the kettle is released, so that the pressure drops to the superheated steam, and then the main nut is removed and the kettle cover is taken out.

Cleaning and maintenance: After each operation, the residue on the reactor body and cover should be removed. The main sealing mouth should be cleaned frequently and kept clean, and it is not allowed to scrub with hard objects or non-smooth surface objects.

 

 

 Sample pretreatment:

In the determination of trace elements and trace elements, hydrothermal reactors can be used to dissolve samples and provide a clear sample solution for subsequent analysis.

It can also be used to dissolve heavy metals (such as lead, copper, cadmium, zinc, calcium, manganese, iron, mercury, etc.), agricultural residues, food, silt, rare earth, aquatic products and other samples, providing a reliable pre-treatment method for environmental monitoring, food safety and other fields of detection.

 Chemical Analysis and Research:

Hydrothermal reactor can be used for sample pretreatment in gas phase, liquid phase, plasma spectrometry, atomic absorption and atomic fluorescence chemical analysis methods, providing clear and accurate data for chemical analysis.

In atomic absorption spectroscopy and plasma emission analysis, it can be used as a helpful assistant for sample pretreatment and provide accurate sample treatment for analysis.

 Organic synthesis:

Hydrothermal reactor can be used as a reaction vessel for the synthesis of organic compounds. Its high temperature and high pressure resistance make it able to withstand complex organic synthesis reaction conditions, which provides convenience for laboratory synthetic chemistry.

It can quickly dissolve samples in a high temperature and high pressure closed environment, improve the efficiency and speed of sample digestion, and thus contribute to the synthesis and conversion of organic matter.

 Environmental Monitoring:

For the treatment and analysis of environmental samples, hydrothermal reactors provide efficient and reliable sample pretreatment methods.

It can be applied to the treatment of soil, water, atmosphere and other different environmental samples, providing important support for environmental monitoring. For example, it can be used to treat environmental pollutants such as wastewater and exhaust gases to assess their impact on the environment.

 Material preparation and modification:

Hydrothermal reactor can also be used to prepare a variety of nanomaterials, composite materials and other new materials. By controlling the reaction conditions, materials with specific structures and properties can be prepared.

It can also be used in the modification treatment of materials, such as surface modification or functionalization of materials through hydrothermal reactions to improve their properties or give them new functions.

 Biological Science experiments:

In the field of biological science, hydrothermal reactor can be used for enzymatic catalytic reaction, DNA extraction and other biochemical experiments. Its high temperature and high pressure conditions help to accelerate the process of biochemical reaction and improve the reaction efficiency.