Reaction tower

Abstract

The invention discloses a reaction tower which comprises a tower wall; a reaction cavity provided with a feeding hole is arranged in the tower wall; a heating pipe is arranged in the reaction cavity; the reaction cavity is internally provided with a temperature detection device extending outside the tower wall; the bottom of the reaction cavity is provided with a stirrer; the upper part of the reaction cavity in the tower wall is vertically provided with a fractional column; a fractional column temperature detection device is arranged at the section of the fractional column, extending outside the top of the tower wall; the fractional column is provided with a first still head and a second still head above the fractional column temperature detection device; the lower end of the first still head is connected with a distributor; the middle section of the first still head is provided with a condensation chamber provided with a condenser pipe; the distributor is provided with a discharge hole, a vacuumized air duct opening and a reflux port; the reflux port is connected with the second still head by a reflux pump. Compared with the prior art, the reaction tower improves the reaction conversion rate.

Description

technical field [0001] The invention relates to the technical field of chemical reaction equipment manufacture, in particular to a reaction equipment used for the reaction of olefinic terpenoids. Background technique [0002] The existing reaction tower for the reaction of olefinic terpenoids is generally provided with a reaction chamber with a feed port and a discharge port in the tower wall, a heating pipe is provided in the reaction chamber, and a temperature detection device is provided in the reaction chamber. , to detect the reaction temperature, the temperature detection device extends out of the reaction chamber, and some reaction towers have a stirrer at the bottom of the reaction chamber. In the reaction process of some alkenyl terpenoids, especially in the reaction process of the direct acylation of 3-carene and acetic anhydride to 4-acetyl-2-carene, due to its low conversion rate, the reaction The speed has been slow, resulting in higher processing costs, not su...

AI Technical Summary

Problems solved by technology

After many years of repeated experiments, the factors such as reaction pressure and temperature were constantly changed, and the reasons were analyzed. It was found that when acetic acid, the reaction product of 3-carene mixture and acetic anhydride in the reaction, increased, the precipitation rate of acetic acid slowed down, thereby slowing down the entire reaction. speed, and finally reach a reaction equilibrium, while affecting the yield of 4-acetyl-2-carene

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