Abstract: A separation, purification and recovery method of SF6, HFCs or PFCs is disclosed, which comprises a step for forming a gas hydrate including components in addition to SF6, HFCs or PFCs. It is possible to separate and recover fluoro-gas at a much lower cost as compared to a conventional method for thereby obtaining an economical effect and preventing an emission of SF6, HFCs or PFCs which corresponds to Non-CO2 having a higher earth warming index, which leads to preventing an earth warming phenomenon. So, the present invention might be widely applied.
Type:
Grant
Filed:
October 31, 2008
Date of Patent:
June 19, 2012
Assignee:
Yoosung Co., Ltd.
Inventors:
Gang Woo Lee, Jae Jeong Lee, Dong Hyun Moon, Min Choul Kim, Min Gwang Seok, Ju Hyun Ko, Hyung Joon Shin, Young Seog Kim, Ju Dong Lee, Man Sig Lee