Continuous reactor for nitromethane

Abstract

The invention relates to the field of chemistry and particularly discloses a continuous reactor for nitromethane. The continuous reactor comprises a horizontal type reactor shell which is arranged in an inclined manner; a cavity body of the horizontal type reactor shell is partitioned into a plurality of reaction units which are communicated with each other by a plurality of flow baffles; a stirring mechanism penetrating through each reaction unit is arranged in the cavity body of the horizontal type reactor shell along the axis direction of the horizontal type reactor shell; and a cooling mechanism sheathes the outer side of the horizontal type reactor shell positioned at the rear side of a reaction mixed liquid inlet. The continuous reactor disclosed by the invention has the advantages that the design is reasonable, the difficulty that the current domestic method for producing the nitromethane by adopting a nitrite replacement method only can adopt intermittent production is solved; and after the continuous reactor is adopted for operation, industrial and large-scale production can be better realized, simultaneously the utilization rate of materials can be increased, the production cost can be reduced and the problems of environmental pollution and the like are solved.

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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