Device for purifying electronic-grade hydrogen chloride and electronic-grade chlorine from hydrogen chloride tail gas
By using the device of the first hydrogen chloride de-heavy tower, the second hydrogen chloride de-light tower and the chlorine purification tower in the hydrogen chloride exhaust treatment, the electronic grade hydrogen chloride and electronic grade chlorine in the hydrogen chloride exhaust gas are separated and purified by the adsorption and distillation process, the problem that the existing technology cannot purify high-purity products at the same time is solved, and the economic value of the process is improved.
CN222624090UActive Publication Date: 2025-03-18FUJIAN HIGHSUN ELECTRONIC MATERIAL TECH CO LTD
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Patent Information
- Application Number
- CN202421227023.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Technical Problem
The prior art cannot simultaneously separate and purify high-purity electron-grade hydrogen chloride and electron-grade chlorine from hydrogen chloride exhaust gas.
Method used
The hydrogen chloride exhaust gas is separated and purified by adopting a device including the first hydrogen chloride de-heavy column, the second hydrogen chloride de-light column and the chlorine gas purification column.
Benefits of technology
It has achieved high-purity electronic-grade hydrogen chloride and electronic-grade chlorine products from hydrogen chloride exhaust gas, replacing the traditional water absorption and alkali absorption processes, greatly enhancing the economic value of hydrogen chloride exhaust gas.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to a device for purifying electronic-grade hydrogen chloride and electronic-grade chlorine from hydrogen chloride tail gas. The device comprises a first hydrogen chloride heavy component removal tower (T-01), a second hydrogen chloride light component removal tower (T-02) and a chlorine purification tower (T-03), the first input end of the first hydrogen chloride heavy component removal tower (T-01) is connected with hydrogen chloride tail gas through a compressor, the tower top output end of the first hydrogen chloride heavy component removal tower (T-01) is connected with a hydrogen chloride heavy component removal tower top condenser (E-01), and a first branch of the output end of the hydrogen chloride heavy component removal tower top condenser (E-01) is connected with the tower top input end of the first hydrogen chloride heavy component removal tower (T-01); a second branch of the output end of the hydrogen chloride heavy component removal tower top condenser (E-01) is connected with the input end of a second hydrogen chloride light component removal tower (T-02); the hydrogen chloride tail gas is separated and purified by adopting an adsorption and rectification purification process, so that the economic value of the hydrogen chloride tail gas is greatly improved.
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