A kind of nitromethane continuous reactor

Abstract

The invention relates to the field of chemical industry, and particularly discloses a nitromethane continuous reactor. The nitromethane continuous reactor comprises an inclined horizontal reactor shell, and the cavity of the horizontal reactor shell is divided into several interconnected reaction units by several baffles. The cavity of the reactor shell is provided with a stirring mechanism penetrating through each reaction unit along the axial direction of the horizontal reactor shell, and a cooling mechanism is set on the outside of the horizontal reactor shell at the rear side of the inlet of the reaction mixture. The nitromethane continuous reactor has a reasonable design and solves the problem that the current domestic nitrite replacement method can only use batch production for the production of nitromethane. After using the continuous reactor operation, it can better realize industrial scale production. At the same time, it improves the utilization rate of raw materials, reduces production costs, and solves many problems such as environmental pollution.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a nitromethane continuous reactor. Background technique [0002] Most of the existing nitromethane production process uses a simple reactor for intermittent production. During the production process, sodium nitrite solid is manually put into the reactor, and the sodium nitrite solid is dissolved in the reactor and then reacts with dimethyl sulfate. . However, when dimethyl sulfate reacts with sodium nitrite, it also has hydrolysis side reactions with water, reducing the yield of the reaction. In production, in order to reduce the occurrence of side reactions and fully react dimethyl sulfate with sodium nitrite, dimethyl sulfate is usually added dropwise, which can only be operated in batches and intermittently, and the production efficiency is very low. And the production process consumes more manpower. Secondly, the reaction between dimethyl sulfate and sodium nitrite is an e...

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Problems solved by technology

[0003] In order to make up for the deficiencies of the prior art, the present invention provides a nitromethane continuous reactor that is reasonably designed, realizes continuous production, improves raw material utilization, reduces production costs, and solves environmental pollution, and solves the problems existing in the prior art question

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