High-efficiency Phenolic Resin Production Line Turnkey Project | JCT Machinery

1. Metering system

Precisely control the raw material ratio to ensure reaction stability.

2. Reactor

Carries out polycondensation reaction to produce phenolic resin.

3. Condenser

Condenses the formaldehyde and water vapor released during the reaction for recycling.

4. Vacuum pump

Provides negative pressure during the dehydration phase, accelerating the removal of water and low-molecular-weight volatiles.

5. Cooling system

Rapidly cools the resin to prevent premature curing.

6. Bag filter, vibrating screen

Remove impurities (such as unreacted particles) from the resin.

1. Polycondensation reaction

Phenol and formaldehyde undergo a polycondensation reaction in the presence of a catalyst, producing either linear or bulk polymer resins. The molar ratio of phenol to formaldehyde affects the type and properties of the product. When the molar ratio is greater than or equal to 1, a linear resin is produced; when it is less than 1, a polyhydroxymethyphenol derivative is produced.

2. Dehydration process

After the reaction is complete, dehydration is required. Dehydration can be performed under normal or reduced pressure. The final dehydration temperature is 140-160℃, and the resin molecular weight is 500-900.