| abstract |
The invention relates to the technical field of fluorine chemicals, in particular to a preparation device for circulating hydrogen fluoride circulating fluidized bed. The utility model is characterized in that: the circulating fluidized bed rectification tower body is divided into upper and lower sections, the upper part is a rectifying section, the lower part is a stripping section, the rectifying section is designed with a multi-stage cyclone condenser, and the stripping section is designed with a reboiler. |