Some basic features of microreactors?

The micro-reactor industry has excellent growth prospects, as it offers numerous benefits to businesses when in use, making it highly favored by customers. To help more people understand this technology, let’s now take a closer look at some of the basic features of micro-reactors. We hope this information will be helpful to many others.

Today, many people still lack a basic understanding of certain key features of microreactors. As the manufacturer, we feel it’s important to briefly explain these fundamentals. In fact, this microreactor is made from stainless steel materials such as SUS304 and 316. These materials offer excellent corrosion resistance and boast strong pressure-bearing capabilities. However, under high-temperature conditions, they do not provide effective protection against strong acids or strong bases. Actually, their properties are similar to those of Hastelloy and nickel-chromium-iron alloys; thus, this product contains a certain proportion of nickel, giving it both the hardness of stainless steel and the superior corrosion resistance of nickel. Currently, materials like these are widely used in laboratory reactors, especially in environments involving high temperatures, strong acids, and strong bases. Moreover, reactors made from zirconium and other nonferrous rare metals exhibit excellent hardness and impact resistance. Consequently, among rare nonferrous metals such as titanium, nickel, and tantalum, zirconium is often chosen as the material for reactor construction. Due to its relatively low hardness, zirconium can only be welded onto stainless steel for use in high-pressure vessels. Therefore, the microreactor represents a typical innovative application of magnetic drive technology in reaction equipment—a perfect choice for chemical reactions involving flammable, explosive, and toxic media. Precisely because of these unique characteristics, the equipment has found widespread use. Additionally, during daily operation, we must exercise caution and perform regular maintenance on these devices.

Before using the microreactor operation management system, it is essential to familiarize yourself with the safe operating procedures for pressure vessels. In actual use, the operating pressure should not exceed two-thirds of the safety plan’s specified limit, nor should it exceed two-thirds of the instrument’s measurement range—ideally, it should be within one-third to two-thirds of the range. Otherwise, you will need to replace the instrument head and pay close attention to the type of gas for which the head is suitable. Before placing the liner into the reactor, make sure that the stirring magnet has been properly inserted. The total volume of the material should not exceed two-thirds of the reactor’s capacity. Therefore, when adding materials, try to distribute them evenly across the bottom of the reactor; in particular, catalysts should be completely covered by either the material or the solvent. After completing the addition of materials, thoroughly clean the sealing surface (gasket) and the reactor lid, ensuring that no foreign particles remain, as any residue could compromise the seal’s integrity. Additionally, be sure to securely close the microreactor lid and gradually tighten the nuts diagonally several times using a torque wrench, taking care to avoid uneven stress, misalignment, or damage to the sealing surface (gasket). Once the reactor lid is fully tightened, replace the air inside the reactor with nitrogen or the gas used in the reaction. Typically, at a pressure of 10 kg/cm², the gas should be replaced three times. When performing the gas replacement, ensure that the microreactor is slowly pressurized and depressurized to prevent the reaction mixture from being carried out or splashing. Therefore, after completing the gas replacement, introduce the reaction gas to the pressure required for the reaction. Begin with preliminary stirring and monitor the magnet’s rotation using the principle of a stethoscope; adjust the stirring pressure accordingly to achieve optimal rotation. For autoclaves operating under pressure, never strike or overtighten nuts and fittings.

Having introduced the above content, we’ve gained a deeper understanding of some of the basic features of microreactors. So next time you see one, it won’t feel unfamiliar to you, and you’ll also be less likely to run into problems during use. Well, that’s all for today’s session—stay tuned for even more exciting insights in the future!