Production system and production method of isobutyl acetate for high-end paint

Abstract

The invention relates to the technical field of production of isobutyl acetate, discloses a production system of isobutyl acetate for high-end paint, and aims at the problem that the requirements on the content of impurities such as alcohol, acid and water in isobutyl acetate for high-end paint are high. The production system comprises an esterification kettle, an esterification tower, an esterification phase splitter, a dehydration tower, a dehydration phase splitter and a finished product fine filter which are sequentially arranged along a material flowing direction, after reaction materials are added into the esterification kettle, the reaction product enters an esterification tower for preliminary separation and then enters an esterification phase splitter for water phase separation, the organic phase and the water phase flow back to the esterification tower according to a certain proportion, the other part of the organic phase enters the dehydration tower and then enters the dehydration phase splitter for water phase separation, and the organic phase flows back to the dehydration tower again, and isobutyl acetate is obtained from the bottom of the dehydrating tower. The production system can realize synchronous removal of impurities such as isobutanol, moisture and acid value in the isobutyl acetate so that the prepared isobutyl acetate is high in purity, low in isobutanol content, low in acid value, low in moisture content and high in color quality.

Description

technical field [0001] The invention relates to the technical field of isobutyl acetate production, in particular to a production system and a production method of isobutyl acetate for high-end paints. Background technique [0002] Isobutyl acetate is an important chemical raw material, mainly used in pharmaceuticals, fragrances, coatings, paints, leather, resin industries, and can also be used as a solvent for nitrocellulose and lacquers. Because isobutyl acetate has good solubility properties for many substances, it can be used as a diluent in the manufacture of nitrocellulose paint, acrylic paint, polyurethane paint, etc. in industry. These high-end paints can be used as aircraft wing coatings, artificial leather coatings, automotive coatings, etc. Isobutyl acetate is used as a diluent for high-end paints. There are strict requirements on the quality of isobutyl acetate finished products. It is necessary to ensure that the moisture content, residual acid content, residua...

AI Technical Summary

Problems solved by technology

In this technical scheme, methyl acetate is used as raw material to replace acetic acid, which can reduce the acid content accordingly, but methyl acetate is rarer than

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