Rotary evaporatorMainly used for continuous distillation of volatile solvents under reduced pressure conditions, applied in fields such as chemistry, chemical engineering, biomedicine, etc. Suitable for reflux operations, rapid evaporation of large amounts of solvents, concentration of trace components, and reaction processes that require stirring. The rotary evaporator uses a vacuum pump to keep the evaporation flask under negative pressure, while heating the solvent in the distillation flask with a heating bath at a temperature close to the boiling point of the solvent; At the same time, electronic control can be used to rotate the flask at a suitable speed at a constant speed to increase the evaporation area. Under the action of an efficient cooler, the hot vapor can be rapidly liquefied, accelerating the evaporation rate.

Advantage:

1. Efficient and energy-saving:

Thin film evaporation increases the heat transfer coefficient to 8000KJ/h · m ², and the evaporation intensity is 3-5 times that of traditional distillation.

Low temperature operation reduces the decomposition of thermosensitive substances (such as increasing the recovery rate of vitamin C by 20%).

2. Flexible operation:

Support continuous feeding, with a single processing capacity ranging from laboratory (2L) to industrial grade (50L).

Optional low-temperature coolant circulation pump can be used to achieve ultra-low temperature condensation at -80 ℃.

3. Safe and reliable:

Suitable for flammable solvents.

The sealing system has undergone special processing and is resistant to organic solvent corrosion

　　Rotary evaporatorThe evaporation rate depends on:

1. Heating bath temperature: The higher the water bath temperature, the faster the rotation speed, generally not exceeding 80 ℃, according to the process requirements.

2. Vacuum degree: The higher the vacuum degree, the faster the liquid evaporates, and the vacuum degree during evaporation should not be less than -0.096MPa.

3. Whether the condensation recovery device is effective: The chiller quickly condenses steam in the condenser tube, thereby reducing the amount of vacuum pump suction during the evaporation process.

4. Rotation speed: The higher the rotation speed, the faster the liquid evaporates, but if the rotation speed is too fast, the liquid is prone to splash out of the bath pot and burn the staff.