Preparation device and technology for chlorine dioxide

Abstract

The invention discloses a preparation device and a preparation technology for chlorine dioxide. The preparation device comprises reactors and a chlorine dioxide cooler, wherein the reactors are at least divided into three levels, namely a primary reactor, a secondary reactor and a tertiary reactor; the tops of the primary reactor, the secondary reactor and the tertiary reactor are communicated through a gas pipeline, and the bottoms of the primary reactor, the secondary reactor and the tertiary reactor are communicated through a liquid pipeline; the primary reactor is also connected with a pre-mixer; the secondary reactor is also connected with a fan; the tertiary reactor is sequentially connected with a concentration system, a solid-liquid separator, a mother solution tank and a mixture return system and connected with the primary reactor after being connected with the mixture return system; and the primary reactor, the secondary reactor and the tertiary reactor are connected with the chlorine dioxide cooler. Compared with the prior art of China, the invention has the advantages of simple process flow, high production capacity and reaction efficiency, low consumption of raw materials, high yield change adaptability, high chlorine dioxide purity, low chlorine content and environment friendliness.

Description

technical field [0001] The invention relates to the field of chlorine dioxide preparation, in particular to a chlorine dioxide micro-negative pressure aeration preparation process and device. Background technique [0002] Chlorine dioxide is favored by people because of its strong bactericidal ability, no harm to humans and animals, and no secondary pollution to the environment. Chlorine dioxide is not only a broad-spectrum environmentally friendly bactericidal disinfectant that does not produce carcinogens, but also shows remarkable effects in sterilization, food preservation, and deodorization. Chlorine dioxide can also be used for bleaching, such as the original chlorine bleaching of textile and papermaking can be replaced by chlorine dioxide. Moreover, at present, national regulations prohibit the use of liquid chlorine bleaching technology in new projects, so the bleaching technology without liquid chlorine has been widely promoted. [0003] Among the many chlorine di...

AI Technical Summary

Problems solved by technology

Throughout the development process of chlorine dioxide preparation technology, we can see that the high negative pressure process has been well developed, especially the R8 method (SVP), which represents the mainstream line in the world today, belongs to the high negative pressure process, and the micro The negative pressure process has not been promoted and used in China

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