Rotary evaporator for producing benidipine hydrochloride

The utility model discloses a rotary evaporator for producing benidipine hydrochloride. The device comprises a bottom plate, a vacuum pump, a lifting box, a heating base and a heating water bath kettle, the bottoms of the vacuum pump, the lifting box and the heating base are fixedly connected with the top of the bottom plate, the bottom of the heating water bath kettle makes contact with the top of the heating base, and one side of the top of the heating base is fixedly connected with a first positioning plate. The rotary evaporator for the production of the benidipine hydrochloride tablets comprises an evaporator body, the method comprises the following steps: distilling a benidipine hydrochloride raw liquid; the heating water bath kettle is well fixed; normal operation of distillation ofthe benidipine hydrochloride raw liquid is guaranteed, and if the heating water bath kettle needs to be cleaned, the heating water bath kettle can be rapidly taken down, so that an operator can cleanthe heating water bath ke