Novel reaction kettle for producing pharmaceutical intermediates

Abstract

The invention relates to a novel reaction kettle for producing pharmaceutical intermediates. The novel reaction kettle comprises a tank, and a telescopic rod is arranged in the tank; a feed ring pipe is arranged on the upper portion of the interior of the tank, and the pipe wall of the feed ring pipe is provided with multiple nozzles and multiple inclined baffles which are arranged in a downwards-inclined mode; the telescopic rod is sleeved with a magnetic stir bar, one side of the inner wall of the tank is provided with a first electromagnet, the other side of the inner wall of the tank is provided with a second electromagnet, the magnetic pole of the first electromagnet is opposite to that of the second electromagnet, and the first electromagnet and the second electromagnet are controlled by alternating currents and oppositely arranged; the outer side of the bottom of the tank is annularly provided with multiple gas transmission main pipes, and each gas transmission main pipe is communicated with the interior of the tank through four gas transmission branch pipes. According to the structure, the novel reaction kettle for producing the pharmaceutical intermediates has the advantages that internal residual materials can be thoroughly removed, the production efficiency can be effectively improved, and the production cost can be reduced.

Description

technical field [0001] The invention relates to a novel reaction kettle for producing pharmaceutical intermediates, which is used in the field of preparation of pharmaceutical intermediates. Background technique [0002] Most of the feeding methods of the existing reactors are direct feeding through the feeding pipe. Using the above-mentioned feeding method in the reactor will lead to the dispersion of the material, resulting in incomplete reaction, resulting in the loss of raw materials, and then increasing the cost. The stirring method of the reactor is generally stirred by the stirring rod, and the stirring efficiency is not high. At the same time, the stirring rod is prone to failure and requires frequent maintenance, which makes it difficult to achieve high-efficiency production. It is difficult to completely remove the internal residual materials in the existing reactor, which increases the difficulty of cleaning, and at the same time reduces the production efficiency ...

AI Technical Summary

Problems solved by technology

[0002] Most of the feeding methods of the existing reactors are direct feeding from the feeding pipe. Using the above-mentioned feeding method in the reactor will lead to the dispersion of the material, resulting in incomplete reaction, resulting in the loss of raw materials, and then increasing the cost.

However, the stirring method of the reactor is generally stirred by the stirring rod, and the stirring efficiency is not high. At the same time, the stirring rod is prone to failure and requires frequent maintenance, which makes it difficult to achieve high-efficiency production.

It is difficult to completely remove the internal residual materials in the existing reactor, which increases the difficulty of cleaning, and at the same time reduces the production efficiency due to the increase of residual materials

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