Production process of isopropyl myristate

Abstract

The invention discloses a production process of isopropyl myristate, which comprises the following steps: 1, sequentially putting myristic acid and isopropanol into an esterification reaction kettle, heating and stirring; 2, when the temperature in the reaction kettle is increased to 45-55 DEG C, adding a catalyst into the esterification reaction kettle, continuously heating and stirring, keeping the temperature in the esterification reaction kettle at 70-85 DEG C, continuously reacting for 4-6 hours, then standing for 1-1.5 hours, and separating moisture; 3, after standing, continuing to stir and react for 3-6 hours to obtain an isopropyl myristate crude product; and 4, washing, deodorizing and decoloring the isopropyl myristate crude product obtained in the step 3, and packaging the finished product. A moisture separation mechanism is arranged in the esterification reaction kettle, and in the step 3, after the materials in the esterification reaction kettle are subjected to standing and layering, the moisture separation mechanism is used for separating the moisture of the reaction in the esterification reaction kettle. The production method is simple, the esterification reaction yield is high, the product purity is high, and industrial production and application are facilitated.

Description

technical field [0001] The invention relates to a production process of isopropyl myristate. Background technique [0002] Isopropyl myristate is a very important long-chain carboxylate compound, which has excellent properties such as low viscosity, no irritation to the skin, and good solubility. It is widely used in cosmetics, spices, insecticides, medicine, textiles, etc. etc. [0003] In the prior art, the production of isopropyl myristate generally uses myristic acid and isopropanol as raw materials, and an esterification reaction occurs under the action of a catalyst to form isopropyl myristate. At the same time, because the esterification reaction is not reversible, in the reaction process, in order to increase the yield of the product, a certain amount of water-carrying agent is generally added during the reaction to reduce the water content in the reaction product, thereby promoting the further trend of the reaction. In the direction of the esterification reaction ...

AI Technical Summary

Problems solved by technology

However, adding water-carrying agents will increase unnecessary impurities in the product, thereby affecting the purity of the product, thus failing to meet people's requirements

Images