System and method for joint production of electronic chlorine and electronic hydrogen chloride

Abstract

The invention provides a system and a method for joint production of electronic chlorine and electronic hydrogen chloride, the system for production of electronic chlorine comprises a condenser, a dehydrating tower, a heat exchanger, a compressor, a chlorine light component removal tower, a chlorine refining tower and the like, and the system for production of hydrogen chloride is based on the system for production of chlorine, and further comprises a hydrogen chloride synthesis furnace, a liquefaction unit, a hydrogen chloride light component removal tower and a hydrogen chloride refining tower. According to the invention, anhydrous and oxygen-free chlorine without water and oxygen in the process of producing the electronic chlorine and external electrolytic hydrogen without water through pressure swing adsorption can be synthesized into hydrogen chloride in the hydrogen chloride synthesis furnace, the hydrogen chloride has extremely low water content,. and corrosion is avoided. By adopting the system and the method disclosed by the invention, the electronic chlorine, the electronic hydrogen chloride and the anhydrous hydrogen chloride can be produced by directly adopting electrolytic chlorine and electrolytic hydrogen, so that the raw material cost is saved; and meanwhile, a heat integration rectification technology is adopted in the process, so that energy is comprehensively utilized.

Description

technical field

[0001] The invention belongs to the technical field of hydrogen chloride preparation, and in particular relates to a system and a method for jointly producing electronic chlorine gas and electronic hydrogen chloride. Background technique

[0002] Electronic hydrogen chloride has broad application prospects in various fields of our lives. It is not only one of the important materials required for manufacturing large-scale integrated circuits in the electronics industry, but also used in medicine, chemical industry, and semiconductor industries, so the demand is increasing big. Some people have successfully synthesized electronic-grade hydrogen chloride in the research and preparation process. At the same time, it has been found from these synthesis methods that the process of preparing hydrogen chloride by analytical method and hydrochloric acid desorption method is simple and can be produced on a large scale, but the purity of the prepared hydrogen chloride i...

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