Mixing equipmentThere are several common functions:

1Mix the materials evenly.

2Make the gas in the liquid phasewelldispersed.

3Uniformly suspend solid particles (such as catalysts) in the liquid phase.

4Uniformly suspend or fully emulsify another immiscible liquid phase.

5Strengthen mass transfer between phases (such as absorption, etc.).

6Enhance heat transfer.

For homogeneous phase reactions, there are mainly two points: ① and ⑥. The speed, uniformity, and heat transfer of the mixture can all affect the reaction results. As for heterogeneous systems, they also affect the size of the phase interface and the mass transfer rate between phases, making the situation more complex. Therefore, changes in stirring conditions often have a sensitive impact on the quality and quantity of the product.

productioninexample：In liquid-phase polymerization reaction devices for solution polymerization and bulk polymerization,stirThe main function of mixing is to promote the flow of materials in the reactor, evenly distribute the materials in the reactor, and increase the mass and heat transfer coefficients. During the polymerization reaction, the viscosity of the polymerization solution often increases with the increase of conversion rate. ifstirPoor mixing can cause a decrease in heat transfer coefficient or local overheating, uneven dispersion of materials and catalysts, affecting the quality of polymer products, and also easily leading to polymer wall sticking, making the polymerization reaction operation unable to proceed well.