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

A technology of hydrogen chloride and chlorine gas, which is applied in the direction of chlorine/hydrogen chloride, chlorine/hydrogen chloride purification, hydrogen chloride preparation, etc., which can solve the problems of high raw material cost and high energy consumption

Active Publication Date: 2021-05-11
北京华宇同方化工科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this device and method realizes the purification of hydrogen chloride, it adopts conventional rectification technology, the tower kettle needs heat source heating, and the tower top needs cold source cooling and condensation, the energy consumption is relatively high, and the cost of raw materials is also high

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0095] Such as figure 1 As shown, the electrolytic chlorine gas is initially dewatered through the concentrated sulfuric acid tank, then pressurized by the compressor P-101, and enters the tube of the falling film condenser E-101 to condense and dewater. The dehydrated chlorine gas discharged from the top of the falling film condenser E-101 enters the lower part of the low-temperature heat pump dehydration tower T-101 to remove residual water in the chlorine gas. The water-containing chlorine stream produced from the lower part of the tower also enters the tube of the falling film condenser E-101; while the low-temperature dehydrated chlorine stream produced from the top of the low-temperature heat pump dehydration tower T-101 passes through the tube-and-tube heat exchanger E- After 102 heat exchange, the compressor P-102 compresses and heats up, and the high-temperature chlorine stream is used as the heat source of the double-effect light removal tower T-102 tower kettle, so ...

Embodiment 2

[0104] refer to figure 2 , the chlorine production unit of this embodiment system is the same as the above-mentioned figure 1 The chlorine gas production unit is the same and will not be repeated here.

[0105] Introduced below figure 2 Hydrogen Chloride Production Units:

[0106] The synthetic hydrogen chloride gas discharged from the synthesis furnace L-201 is pressurized to a higher pressure by the compressor P-201, and then condensed and liquefied by a water cooler, most of which can be used as 2N industrial grade hydrogen chloride products; and the other part The liquid enters the upper part of the double-effect light removal tower T-201 to remove light components.

[0107] Double-effect light removal tower T-201 is a high-pressure double-effect rectification tower with high pressure and high saturation temperature, and gaseous hydrogen chloride containing light components is extracted from the top of the tower. This hydrogen chloride gas can be used as the heat sou...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B7/07C01B7/01
CPCC01B7/07C01B7/0712C01B7/017C01B2210/0062
Inventor 张吉瑞
Owner 北京华宇同方化工科技开发有限公司
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