PURIFICATION

Home - system - purification

system

PURIFICATION

Purification system process

The purification process mainly includes pretreatment, falling film evaporation and condensation. Pretreatment is to remove impurities and make the material meet the requirements of falling film evaporation; Falling film evaporation is that the material is sprayed evenly on the heating surface, and the material forms a film-like flow on the heating surface by gravity, and the phase change occurs; Condensation is to condense the gas produced by evaporation into liquid after cooling.

The purification falling film evaporation process has the characteristics of high heat transfer efficiency, short residence time of materials and no degradation of heat-sensitive materials. This is because the fluid velocity in the falling film evaporation process is large, which is not driven by high temperature difference, allowing the use of more economical low temperature difference; At the same time, the evaporation heat transfer coefficient is relatively large, and the material residence time is short, which will not cause degradation to heat-sensitive materials. The purification falling film evaporation process is widely used in chemistry, material science, pharmacy and other fields, which is used to prepare high-purity substances, remove impurities and improve product quality.

Advantages of graphite falling film evaporation process

Corrosion resistance and chemical stability – Graphite has excellent corrosion resistance and chemical stability, and can be used in various corrosive environments, such as chlor-alkali, agrochemical and other fine chemical fields. This makes the falling film evaporation process of graphite a reliable purification method.

High thermal conductivity and high thermal capacity – Graphite has high thermal conductivity and high thermal capacity, which can quickly transfer heat to materials and reduce the temperature of materials. This makes the graphite falling film evaporation process have obvious advantages in treating heat-sensitive materials.

Machinability and high strength – Graphite has mechanical machinability and high strength, and can be processed into evaporators of various shapes and sizes, while ensuring sufficient strength. This makes the graphite falling film evaporation process have great advantages in preparing high-purity substances.