Industrial water-free oxygen-free production apparatus

Abstract

The invention relates to a water-free oxygen-free production apparatus used in the chemical industry. The apparatus comprises a reaction vessel which is respectively connected with a feeding system, an inert gas pressure supplementing system and a condenser cooling system, and a non-aqueous medium cooling system and a non-aqueous medium heating system are arranged out of the reaction vessel. The invention further relates to a preparation method for a chemical product by using the production apparatus. According to the invention, the technical problem of requirements for no water and oxygen in a reaction with participation of an active alkali metal is overcome, effects of heating and cooling are realized through indirect heating and cooling of all the heat sources and cold sources in the whole reaction vessel reaction vessel without a water medium, the advantages of safety, reliability, easy operation and a low manufacturing cost are obtained, and the apparatus is applicable both to common reactions with participation of active alkali metals and strict requirements for no water and oxygen and to a majority of water-free oxygen-free production systems and has a high popularization value in industrial equipment.

Description

technical field [0001] The invention relates to a water-free and oxygen-free production device for the chemical industry, in particular to a reaction equipment system heated and cooled by a non-aqueous medium under the protection of an inert gas, and belongs to the technical field of chemical equipment. Background technique [0002] In chemical experiments and chemical production, some compounds or systems that are sensitive to water vapor and / or air (which contains oxygen and water vapor) are often encountered. In this case, it is necessary to operate under anhydrous and oxygen-free conditions. In anhydrous and oxygen-free synthesis, it is generally necessary to perform anhydrous and oxygen-free treatment on the reagents and solvents used, for example, reflux treatment with metal sodium or alkali metal or alkaline earth metal hydride in an atmosphere of inert gas such as nitrogen or argon, When the solvent treated with benzophenone as an indicator turns blue, it means that ...

AI Technical Summary

Problems solved by technology

Some anhydrous and oxygen-free synthesis will have highly active metal-organic reagents to participate in the reaction. If the anhydrous and oxygen-free conditions are not well controlled, the synthesis cannot be carried out effectively

For example, in some reactions involving the participation of active alkali metals such as lithium, sodium, and potassium, water must be strictly prohibited. Otherwise, once equipment failure, leakage, rupture, etc., water enters the reaction system, catastrophic disasters will occur. as a result of

[0006] Some laboratory-scale anhydrous and oxygen-free conditions are difficult to achieve in industrial production, and some even if feasible, need to be improved to suit the scale

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