A kind of hydrodechlorination device and method for trichloroacetone

Abstract

The invention discloses a hydrodechlorination device and method for trichloroacetone, relates to the technical field of chemical purification, and comprises a reaction vessel and a base, the reaction vessel is placed above the base, and the reaction vessel is provided with a first bottle opening, The second bottleneck, the third bottleneck and the fourth bottleneck, the second bottleneck is located at the center position, and a stirring structure is arranged in the second bottleneck; the stirring mechanism includes a stirring rod, a stirring rod arranged on the outside The end cover plug, the sliding sleeve, the stirring blade arranged at the bottom of the stirring rod and the connecting rod rotatably connected with the stirring blade, the feeding structure is arranged inside the stirring rod, and the upper end of the stirring rod is connected with the driving mechanism. This invention eliminates the The magnetic stirring bar interferes with the tubes in the reaction vessel when rotating, and improves the stirring efficiency at the same time, which is suitable for batch dechlorination treatment; and the stirring blades are easy to extend and retract, which is convenient for installation and disassembly.

Description

technical field [0001] The invention belongs to the technical field of chemical purification, and in particular relates to a hydrodechlorination device for trichloroacetone and a method thereof. Background technique [0002] Trichloroacetone is an important industrial raw material. Trichloroacetone, especially high-purity trichloroacetone, has an extremely wide range of uses and can be used in the synthesis and research of anti-HIV drugs, imidazole heterocyclic compounds, polycyclic or bridged ring compounds . The preparation method of trichloroacetone is usually the method for the direct chlorination of acetone. In the existing technology, due to the poor selectivity of chlorination, the yield is low. In the chlorination product, except trichloroacetone, it also contains monochloroacetone, Dichloroacetone, tetrachloroacetone, pentachloroacetone and hexachloroacetone. Among them, tetrachloroacetone, pentachloroacetone and hexachloroacetone are insoluble in water, and after...

AI Technical Summary

Problems solved by technology

The preparation method of trichloroacetone is usually the method for the direct chlorination of acetone. In the existing technology, due to the poor selectivity of chlorination, the yield is low. In the chlorination product, except trichloroacetone, it also contains monochloroacetone, Dichloroacetone, tetrachloroacetone, pentachloroacetone and hexachloroacetone

[0003] In order to prevent the leakage of toxic substances during the dechlorination process, the existing dechlorination devices all use airtight containers for reaction, and stir and mix through an external magnetic stirring device. The intake pipe placed in the container collides, and the stirring effect is not good, and the existing closed container device is not suitable for batch dechlorination treatment, and the dechlorination efficiency is low. Therefore, we propose a hydrodechlorination of trichloroacetone Apparatus and method thereof

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