Oxidization and distillation packed tower for preparing industrial bromine

Abstract

The invention discloses an oxidation and distillation packed tower for preparing industrial bromine. The oxidation and distillation packed tower is used for preparing industrial bromine. The oxidationand distillation packed tower comprises a carbon steel shell and a polytetrafluoroethylene lining, and is provided with at least six oxidation reaction layers, each oxidation reaction layer is internally provided with multiple tower plates and multiple filler layers, all segments of the oxidation reaction layers and the last segment of the oxidation reaction layer and a distillation layer are separated by distributing tower plates, and filler made of polytetrafluoroethylene or borosilicate glass is added into the oxidation reaction layers, bromine steam outlet layers and separated bromine water backflow layers. The oxidation and distillation packed tower has the technical advantages that the problems are solved that a borosilicate glass tower for preparing bromine is easily broken, and anenamel tower has poor visibility and is not easy to operate, the operation can be accurately and visually conducted, and the safety and reliability can also be improved. Through the arrangement of the separated bromine water backflow layers and bromine water backflow inlets, separated bromine water conveniently returns to the tower to recycle industrial bromine, and therefore, the yield of bromine is greatly increased.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to an oxidative distillation packed tower used for industrial bromine production. Background technique [0002] Bromine is an important basic raw material for fine chemicals. It is widely used in pesticides, medicines, petroleum, dyes and other industries. It plays an extremely important role in the development of the national economy and people's production and life. At present, my country has become the country with the third industrial bromine production and application in the world. There are more than 4,500 kinds of artificially synthesized bromides, and more than 1,800 kinds are commonly used. [0003] Bromine resources mainly come from ocean or marine brine. There are currently two ways to produce bromine. One is that brine with low bromine content is first blown out by air and adsorbed to prepare a enrichment solution with high bromine content. The enrichment solu...

AI Technical Summary

Problems solved by technology

In the prior art, the distillation tower is usually made of glass or enamel. Due to material reasons, it is impossible to realize large-scale production of the equipment, and the enamel equipment is easy to corrode, and the glass equipment has problems such as small capacity and easy breakage. Due to shutdown and replacement High frequency leads to high production cost, which in turn affects production efficiency and restricts the development of the industry

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