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FAQ

  • Q What are the important precautions during the glove box regeneration process?

    A The preparation work for glove box regeneration process includes checking the equipment status and gas supply; Setting of temperature parameters, gas flow rate, and regeneration time; The operation steps include connecting the regeneration gas, setting the secondary pressure gauge of the pressure reducing valve, closing the cycle and analyzer, starting the vacuum pump, and regenerating the program; During the regeneration process, it is important to avoid power and gas outages, observe flow meters, prevent burns, and ensure safe operation; After the regeneration is completed, the experimental environment should be restored, the regeneration effect should be checked, and the operation process should be recorded.
  • Q What situations require regeneration of the glove box?

    A The glove box needs to be regenerated in the following situations: when it has not been regenerated for a long time (about six months) and the current water and oxygen indicators are difficult to further reduce; When the glove box is frequently used or subjected to high demand experiments; When the performance of the adsorbent material changes; When encountering the above situations, it is necessary to perform regeneration operations on the glove box.
  • Q Why is stainless steel glove box more suitable for chemical experiments?

    A Stainless steel glove boxes are more suitable for chemical experiments mainly because their material has excellent corrosion resistance. Stainless steel, especially 304 stainless steel, contains 18% chromium and 8% nickel, which can maintain stable performance in humid and corrosive environments and effectively resist the erosion of most oxidizing acids. In addition, stainless steel also has high strength and rigidity, which can withstand large internal pressure changes and external impacts, ensuring the stability and safety of the glove box structure during long-term use. These characteristics make stainless steel glove boxes an ideal choice for chemical experiments that require highly clean and corrosion-resistant environments.
  • Q What is the function of gloves in the glove box in maintaining the purity of the experimental environment?

    A Glove box gloves can maintain the purity of the experimental environment. Due to their low breathability, they can prevent external air and pollutants from entering the glove box through the gloves, ensuring the purity and stability of the indoor environment. This is crucial for experiments such as semiconductor manufacturing that require a highly pure environment; And its sealing and chemical resistance ensure experimental chemical stability and environmental controllability, improving experimental accuracy and success rate.
  • Q What are the specific functions of gloves in the glove box?

    A Glove box gloves can prevent contamination and prevent external dust, bacteria, viruses, and other pollutants from entering the glove box. Operators can operate experiments inside the glove box through gloves, avoiding the risk of experimenters or operators directly contacting the experimental items and being harmed; It can protect against chemicals and is often made of materials with strong chemical resistance, such as butyl synthetic rubber, which can resist various chemical substances and protect hands from experimental objects.
  • Q What is the working principle of copper catalyst deoxygenation in glove box purification column?

    A
    The working principle of copper catalyst deoxygenation in the glove box purification column is to absorb and eliminate oxygen by catalyzing the reaction between oxygen and certain substances through copper catalyst. Specifically divided into:
    1、Adsorption process: When the gas inside the glove box passes through the purification column, the nanoparticles on the surface of the copper catalyst will adsorb oxygen molecules. These nanoparticles have highly active sites that can interact with oxygen molecules.
    2、Catalytic reaction: Oxygen molecules adsorbed on the surface of copper nanoparticles lose one or more electrons and are reduced to copper oxide. At the same time, copper atoms on copper nanoparticles provide electrons to oxygen molecules and participate in oxygen reduction reactions. ‌
    3、Regeneration process: Over time, the copper catalyst will gradually become saturated. At this point, the glove box regeneration system is activated to reduce copper oxide to copper nanoparticles by introducing hydrogen gas or heating, restoring the purification ability of the copper catalyst.
  • Q What is the working principle of the glove box purification column in adsorbing moisture?

    A Molecular sieves are commonly used in glove box purification columns to adsorb moisture. Molecular sieves are porous materials with strong hygroscopicity. Its working principle is to remove moisture through physical adsorption. When the temperature is low, the water saturation of the molecular sieve is high, which can absorb a large amount of water. When the gas in the glove box passes through the molecular sieve, the water is adsorbed in the pores of the molecular sieve, thereby removing the water in the gas. After the molecular sieve is saturated with adsorption, the glove box regeneration is turned on. During regeneration, the temperature will increase, the water saturation of the molecular sieve will decrease, and the adsorbed water will evaporate. By heating and vacuuming, the molecular sieve can be regenerated and its water removal ability can be restored.
  • Q What types of impurities are mainly removed by the gas purification system of the glove box?

    A The glove box air purification system mainly removes impurities including oxygen (O ₂), moisture (H ₂ O), and other harmful gases such as organic gases, acidic gases, etc. These impurities may interfere with experimental results or damage sensitive materials, so they need to be effectively removed through physical adsorption or chemical reactions.
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