1
Yao En Li, Magdy Meimari: Process for recovering SF6 from a gas. American Air Liquide, Burns Doane Swecker & Mathis L, January 5, 1999: US05855647 (20 worldwide citation)

A process for recovering SF.sub.6 from a gas is provided. The process includes the step of contacting a gas stream comprising SF.sub.6 and at least one of N.sub.2, O.sub.2, CO.sub.2, and H.sub.2 O with a membrane in at least one membrane separation unit at conditions effective to obtain a retentate ...


2
Yao En Li, Magdy Meimari: Process for recovering SF.sub.6 from a gas. American Air Liquide, Air Liquide Canada, Burns Doane Swecker & Mathis L, August 1, 2000: US06096114 (9 worldwide citation)

A process for recovering SF.sub.6 from a gas is provided. The process includes the step of contacting a gas stream comprising SF.sub.6 and at least one of N.sub.2, O.sub.2, CO.sub.2, and H.sub.2 O with a membrane in at least one membrane separation unit at conditions effective to obtain a retentate ...