Dropping and distilling reaction device

Abstract

The invention provides a dropping and distilling reaction device which comprises a rack, an anti-boiling ball and a guide plate, wherein a control panel is fixedly attached to the outer side surface of a cross rod at the top of the rack, and an electromagnetic stirring machine which is electrically connected with the control panel is fixedly arranged at the front end of the cross rod of the rack;a speed reducer at the bottom of the electromagnetic stirring machine is rotationally connected with a connecting rod, and the bottom of the connecting rod is fixedly connected with a stirring paddle;and the stirring paddle is sleeved with a distillation retort, and the outside of the distillation retort sleeves the inside of a groove in the top of a heating kettle. The dropping and distilling reaction device is provided with the anti-boiling ball and the guide plate, wherein the control panel is fixedly attached to the outer side surface of the cross rod at the top of the rack, and the electromagnetic stirring machine which is electrically connected with the control panel is fixedly arranged at the front end of the cross rod of the rack; the speed reducer at the bottom of the electromagnetic stirring machine is rotationally connected with the connecting rod, and the bottom of the connecting rod is fixedly connected with the stirring paddle; and the stirring paddle is sleeved with thedistillation retort, and the outside of the distillation retort sleeves the inside of the groove in the top of the heating kettle.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, and more specifically relates to a dropwise addition and distillation reaction device. Background technique [0002] In chemical reactions, especially when some chemical products are synthesized or reagents are mixed, it is often necessary to add one reagent to another reagent to react and obtain the output product, such as adding water to concentrated sulfuric acid for dilution, or water The simple reaction of adding solid sodium to dissolve, the dropping reaction is very violent, and it is necessary to control the dropping rate and carry out anti-knock treatment, and a preparation method of 2,4-dichlorophenoxyacetic acid in the patent application CN201610634242.5 , the specific steps are: add 2,4-dichlorophenoxyacetic acid methyl ester into water, add solid acid catalyst, stir and heat, reflux reaction for 2-8 hours, distill off the methanol generated by the reaction, cool to room te...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned technical problems, the present invention provides a dropwise distillation reaction device to solve the problem that the existing dropwise distillation is prone to bumping and the drop rate is difficult to control. When stirring, it is easy to cause the distillation tank to collide with the heating furnace and cause problems

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