A kind of technology and equipment for preparing isobromopropane

Abstract

The invention discloses a process and equipment for preparing isobromopropane, which relates to the technical field of chemical equipment, and solves the problems of the existing isobromopropane preparation equipment, the optimization design of the heating device on the rectification tower is not ideal, the heating method is single, and the heating It is not comprehensive enough and the uniformity and efficiency are poor, and it is easy to form a temperature difference and affect the preparation reaction. A process and equipment for preparing isobromopropane, including a rectification tower; the rectification tower includes an auxiliary heating jacket, and the rectification tower has a circular tank-like structure as a whole, and a circular sleeve is welded on the lower half of the rectification tower Auxiliary heating jacket, a feed pipe is welded vertically on the peripheral outer wall of the auxiliary heating jacket. The tail end of the feed pipe passes through the auxiliary heating jacket and communicates with the interior of the rectification tower. The feed pipe is used for filling isopropanol. A row of vertical thin tubes on the liquid distribution part of the present invention are inserted through the auxiliary heating jacket, which can be preheated by using the circulating hot air in the auxiliary heating jacket, which saves the need to set up an additional electric heat source for hydrobromic acid.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a process and equipment for preparing isobromopropane. Background technique [0002] Bromopropane is an organic compound with the molecular formula C 3 H 7 Br. It is a colorless or light yellow transparent liquid, neutral or slightly acidic, sensitive to light, can be mixed with alcohol and ether in any proportion, and slightly soluble in water. Bromopropane has two isomers, n-bromopropane and isobromopropane. As a raw material for organic synthesis, 1-bromopropane is used in the synthesis of organophosphorus insecticides and acaricides such as thionate, prothion, and profenofos in pesticides. As the raw material of Shi's reagent, bromopropane chemical production and preparation need to use preparation equipment and rectification device for rectification. [0003] For example, the application number: CN201810594072.1 involves a method for continuously preparing 1-bro...

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of technology and equipment for preparing isobromopropane, to solve the unsatisfactory optimization design of the heating device on the rectification tower proposed in the above-mentioned background technology, the heating method is single, the heating is not comprehensive enough and the uniformity and efficiency are relatively low. Poor, easy to form temperature difference and affect the preparation reaction

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