Production process method for isooctyl acrylate

Abstract

The invention discloses a production process method for isooctyl acrylate, belonging to the field of isooctyl acrylate preparation. The production process method comprises the following steps: S1, esterification: (a) conveying acrylic acid into an esterification reaction kettle by a pump; (b) respectively conveying isooctanol into the esterification reaction kettle and an esterification reflux spray tank by a pump, wherein 7000 L of the isooctanol is added into each tank; (c) conveying an esterification polymerization inhibitor liquid into a reaction kettle by a pump; and (d) adding p-toluenesulfonic acid into a catalyst tank, adding water, carrying out dissolving, and carrying out sampling so as to analyze the content of an aqueous solution; S2, neutralizing: (a) pumping an esterificationmaterial into the bottom part of a water washing tower by a pump, pumping industrial water in an esterification water collection tank into the water washing tower from the top part of the water washing tower, recovering p-toluenesulfonic acid from the bottom part of the water washing tower, and allowing a crude ester organic phase from the top part of the water washing tower to enter the bottom part of an alkaline washing tower; and S3, refining. The preparation method provided by the invention is scientific and reasonable, has high preparation benefit; and the isooctyl acrylate prepared by using the preparation method provided by the invention has good purity.

Description

technical field [0001] The present invention relates to the preparation field of isooctyl acrylate, more specifically, relate to a kind of production technology method of isooctyl acrylate. Background technique [0002] Isooctyl acrylate: Chinese name: 2-ethylhexyl acrylate, Chinese alias: 2-2-ethylhexyl acrylate; (2-ethylhexyl) acrylate; 2-ethylhexyl acrylate (2- EHA); 2-ethylhexyl acrylate; 2-ethylhexyl acrylate; isooctyl acrylate, stored in a cool, ventilated warehouse. Keep away from fire and heat sources. Keep away from light. The storage temperature should not exceed 30°C, keep the container sealed, and it is strictly forbidden to contact with the air. It should be stored separately from oxidants, acids, and alkalis. Do not store them together. Equip the corresponding types and quantities of fire-fighting equipment. The storage area should be equipped with leakage emergency treatment equipment. and suitable containment materials. [0003] In the preparation process...

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Problems solved by technology

[0004] Although the method for preparing isooctyl acrylate in the prior art is simple, the purity of the prepared isooctyl acrylate is not enough, and the effect of preparation is not good. Positive ratio, lower yield

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