Rotary evaporator vacuum distillation operation steps

February 09 07:06:07, 2023

First, the operating procedures
1. Connect the hose to the condensate tap and connect it to the vacuum pump with a vacuum hose.
2. Inject water into the heating tank first. It is best to use pure water, tap water should be placed for 1-2 days before use.
3. Adjust the main unit angle: just loosen the main unit and column attachment screws. The host can be tilted between 0-45 degrees.
4. Turn on the condensate, turn on the power supply 220V/50Hz, connect the evaporation bottle to the host (do not let go), turn on the vacuum pump to reach a certain degree of vacuum and let go.
5. Adjust the height of the main machine: press the pressure bar at the bottom of the heating tank, adjust the curvature to the right and left to reach the appropriate position, and then reach the required height by hand.
6. Turn on the speed switch, the green light is on, adjust the speed knob next to the left side, and the evaporation bottle starts to rotate. Turn on the temperature switch, the green light is on, adjust the temperature adjustment knob on the left side, the heating tank starts the automatic temperature control heating, and the rotary evaporator enters the trial run. Once the temperature and vacuum are within the required range, the solvent can be evaporated to the receiving bottle.
7. After evaporation, first turn off the speed switch and temperature switch, press the lower pressure bar to raise the main unit, then close the vacuum pump, and open the vent valve above the condenser to make it open to the atmosphere, remove the evaporation bottle, and the evaporation process ends. .
Second, the rotary evaporator notes
1. The glass parts should be handled gently, washed and dried.
2. The heating tank should be energized after water injection, no dry burning.
3. Apply a small amount of vacuum grease evenly before installing the grinding rotary evaporator.
4. The precious solution should be simulated first. Confirm that the rotary evaporator is suitable for use after normal use.
5. The precise water temperature is measured directly with a thermometer.
6. When the rotary evaporator is working, turn off the switch and unplug the power cord.
      
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