Method for defluorinating and degrading complete fluorine substituted compounds |
Title: |
Method for defluorinating and degrading complete fluorine substituted compounds |
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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. |
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