Method for defluorinating and degrading complete fluorine substituted compounds
Title:
Method for defluorinating and degrading complete fluorine substituted compounds
Application Number:
200510011126
Application Date:
2005/01/07
Announcement Date:
2005/10/12
Pub. Date:
2007/11/07
Publication Number:
1680219
Announcement Number:
100347137
Grant Date:
2007-11-7
Granted Pub. Date:
2007-11-7
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
C07B 35/06, B09B 3/00
Applicant(s):
Qinghua Univ.
Inventor(s):
Zhang Pengyi, Chen Jing, Zhang Li, Yu Gang, Chang Xiaojun
Key Words:
defluorinate, degrade, complete fluorine substituted compounds
Abstract:
A defluorinating and degrading method of fluorine substituted compound is characterized by vacuum ultraviolet irradiating PFOS and PFOA etc. fluorine substituted compound at anaerobic condition, defluorinating reacting fluorine substituted compound at irradiation of 185nm ultraviolet mercury vapour light or 172nm xenon quasi molecule laser light, inducing protective inert gas or reducing gas for realizing anaerobic condition, or adding reducing substance or semiconductor catalyst with high conducting band energy level during reacting process to improve defluorinating and decomposing ratio. It achieves simple operation and non-toxic.
Claim:
Priority:
PCT:
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