Filter flask

The utility model provides a filter flask, includes flask, its characterized in that: the lower part position is equipped with an opening in the lateral part of flask, and the opening part is equipped with a pipe that has the psammitolite, and the pipe is the outside back of level upwards right angle bending, horizontal externally folded structure again, and the upper end of pipe highly is not higher than the bottleneck height of flask, and the pipe is connected with evacuating device, installs control flap on the pipe. An opening is add to the lateral part of flask, and the opening part is connected with the pipe that has the psammitolite, can realize separating liquid -solid two -phase for solid catalyst is kept off in three -neck flask by the psammitolite, can not cause the loss of catalyst, realizes the reuse of catalyst. The utility model relates to a novel, the function is many, can collect the reaction and filter in an organic whole, can realize on -line separation liquid -solid two -phase for the acti