Method of treating fluorine compounds and treated substance

Details Method of treating fluorine compounds and treated substance Method of treating fluorine compounds and treated substance

2006-11-14

2006-11-14

Price, Elvis O. (Department: 1621)

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Aluminum containing

C502S400000, C502S401000, C502S406000, C502S411000

Reexamination Certificate

active

07135430

ABSTRACT:
Divalent and trivalent metal salts are added to the solution containing the fluorine compound to precipitate the layered double hydroxide containing the fluorine compound between layers. By these processes, the fluorine compound can be fixed with high rate. Moreover, if necessary, the precipitated layered double hydroxide can be recovered to separate the fluorine compound or its salt between layers. Therefore, the burden to environment or the ecosystem by the fluorine compound can be reduced.

REFERENCES:
patent: 4282162 (1981-08-01), Kuhls
patent: 6743957 (2004-06-01), Fuda et al.
patent: 6-48742 (1994-02-01), None
patent: 10-279307 (1998-10-01), None
patent: 94/10973 (1994-05-01), None
76thSpring Meeting of Chemical Society of Japan, Mar. 1999 (with English Abstract).

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