Automatic pressure-lifting synthesis technique for bromine chloride by one-step method

Abstract

The invention relates to a self-boosted one-step bromine chloride synthesis technology, which is characterized in that the synthesis reaction of the liquid bromine processed by dried pretreatment and the decompressed high purity chlorine is processed in a airtight medium pressure reactor, wherein the chlorine charging speed is 0.35 to 0.60 gram per minute. While the chlorine is charged and the synthesis reaction of bromine and chlorine is processed, the pressure in the reactor is increasing, and the temperature is rising; the pressure can be as high as 10 atm, the temperature ca be as high as 70 DEG C. When the ratio of the mole numbers of chlorine and bromine in the reactor reaches to 1.00-1.02 :1, the charging of chlorine in medium pressure reactor is stopped. After stopping the charging of chlorine, the materials in the reactor is kept to stir in 15 to 20 minutes, and the high purity bromine chloride product is obtained. The self-boosted one-step bromine chloride synthesis technology has the advantages of simple technological process, no three wastes, no need for refining process, little control point, easy operation, convenient maintenance and management and energy saving, and the synthesis product purity is more than 99.70%.

Description

technical field [0001] The present invention relates to the synthesis technology of interhalogen compounds, in particular to the technology of using liquid bromine and chlorine gas to synthesize bromine chloride (BrCl) in a medium-pressure reactor. Background technique [0002] Bromine chloride is an interhalogen compound used as an industrial disinfectant and brominating agent. Since it was discovered that it has many unique characteristics and wide applications, it has attracted people's attention. Therefore, the synthesis technology of bromine chloride has become an important research project in the field of inorganic chemical industry. [0003] The synthesis method of bromine chloride in the prior art generally adopts a non-closed reactor connected to the atmosphere, which has problems such as high cost, high energy consumption, and the need for refining of the prepared product, and is not suitable for expansion and large-scale production. For example: [0004] Japanes...

AI Technical Summary

Problems solved by technology

[0007] Aiming at problems such as low quality, high cost, and high energy consumption in the prior art bromine chloride synthesis method, the present invention introduces a self-boosting one-step method for synthesizing bromine chloride technology, the purpose of which is to utilize liquid bromine and chlorine in the The reaction synthesis of bromine chloride under medium pressure conforms to the physical properties of bromine chloride existing and reacting in gas-liquid two phases, and obtains high-purity bromine chloride while reducing energy consumption