The difference and detailed application between emulsifier and disperser

In modern industrial production, fine processing technology is one of the key factors to improve product quality and performance. As two commonly used high shear mixing equipment, emulsifiers and dispersers play an important role in many industries, such as chemical industry, pharmaceutical, food and cosmetics. Although they have certain cross functions, there are obvious differences in design principles, application fields and processing effects. King Zong Enterprise will explore the difference between emulsifier and disperser and their respective features and applications in detail.

1. Basic Concepts

　　Emulsifier: The main function of an emulsifier is to disperse one or more immiscible liquids (such as oil and water) evenly in another liquid through high-intensity shearing force, impact force, and cavitation effect, forming a stable emulsion. The core of the emulsifier lies in its ability to generate extremely small droplets, achieving good emulsification effect. It is widely used in the preparation of emulsifiers, creams, ointments, paints, lubricating oils, and other products.

　　Disperser: Designed to evenly disperse solid particles in a liquid medium, forming a stable slurry. It breaks up agglomerated solid particles through the shearing force generated by the high-speed rotation of blades or rotor-stator systems, achieving the purpose of refinement and uniform distribution. Dispersers are widely used in the fields of coatings, pigments, inks, ceramic slurries, and nanomaterials.

2. Main Differences

Design and Working Principle:

Emulsifiers are usually equipped with more precise stator-rotor structures which can generate extremely high shear forces in a very small space, suitable for processing high-viscosity materials, and are more adept at handling liquid-liquid system emulsification.

Dispersers, on the other hand, often adopt open-type impellers or disc-type structures, which are suitable for materials with low to medium viscosity, on the effective dispersion of solid particles in liquids and reducing particle size.

Subject Matter:

Emulsifiers are dedicated to processing mixtures of two immiscible liquids, to form stable, fine emulsions.

Dispersers, on the other hand, focus on the uniform dispersion of solid particles in liquids, reducing particle agglom and improving the stability of the mixture.

Final product characteristics:

The products produced by the emulsifier are characterized by high stability and small droplet size, such as delicateulsions and creams.

The products processed by the disperser are characterized by uniform distribution and fine solid particles, such as bright and uniform paint, stable suspensions,.

3. Application fields

Emulsifier: Widely used in cosmetics, pharmaceuticals, food processing, petrochemicals, agricultural chemicals and other industries, the production of various emulsion products.

Disperser: Essential in industries such as coatings, inks, pigments, ceramics, battery materials, andomaterial preparation, especially suitable for occasions that require efficient dispersion and reduction of particle size.

4. Summary

In summary, although both emulsifiers and dispers are important equipment for achieving uniform mixing of substances, they have their own emphasis in design principles, processing objects, and final application directions. Choosing the right equipment is crucial for improving quality and optimizing production processes. Understanding the differences between the two helps to select the most appropriate equipment according to specific needs, thus achieving the best processing results and economic benefits in the production.