一种基于串联分子筛分离纯化C4F6的方法
By combining 13X molecular sieve in series with metal-modified H-ZSM-5 molecular sieve, the problem of separating organic impurities in hexafluorobutadiene was solved, achieving efficient and low-cost C4F6 purification, which is suitable for industrial applications.
CN121673149BActive Publication Date: 2026-07-17SOUTH CHINA UNIV OF TECH +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTH CHINA UNIV OF TECH
- Filing Date
- 2025-12-10
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies are difficult to effectively separate organic impurities C4HF5, C4H2F4, 1-C4HF7 and 2-C4HF7 in hexafluorobutadiene (C4F6). Traditional methods suffer from high energy consumption, high cost or insufficient separation selectivity.
Method used
A series combination of 13X molecular sieve and metal-modified H-ZSM-5 molecular sieve is used to introduce metal ions such as Cu2+ through ion exchange. The different pores and polarities of the two molecular sieves are utilized to adsorb impurities in the mixed gas stepwise, achieving efficient separation.
Benefits of technology
The purity of C4F6 has been increased to 5N grade (99.999%), reducing energy consumption and cost, making it suitable for large-scale industrial applications.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN121673149B_ABST
Abstract
本发明公开了一种基于串联分子筛分离纯化C4F6的方法。该方法为：将含有四种有机杂质的C4F6混气通入到串联固定床中，该固定床中填充了两种具有不同物理化学性质的分子筛，两种分子筛会选择性地吸附杂质，从而实现C4F6的纯化。该方法结构简单、纯化效率高、再生性能好，适用于复杂混合气体的工业级精制过程。
Need to check novelty before this filing date? Find Prior Art