Modified adsorbent and application of same in preparation of ultra-pure hexafluoroethane

The invention discloses an adsorbent modified through an ion exchange method, ball milling method or impregnation method. The adsorbent is selected from a group consisting of an A type molecular sieve, an X type molecular sieve, a Y type molecular sieve, SiO2, Al2O3 and active carbon AC. The modifie...

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Hauptverfasser:	BAI ZHANQI, XU JIAO, ZHANG JINKE, HU XIN, HE SHUANGCAI, QI HAI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention discloses an adsorbent modified through an ion exchange method, ball milling method or impregnation method. The adsorbent is selected from a group consisting of an A type molecular sieve, an X type molecular sieve, a Y type molecular sieve, SiO2, Al2O3 and active carbon AC. The modified adsorbent provided by the invention is applicable to removal of organic impurities in a crude hexafluoroethane product and enables an ultra-pure hexafluoroethane product with a purity of no less than 99.999% to be obtained.