Method of treating fluorine compound and treated substance

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

2005-05-24

2005-05-24

Price, Elvis O. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C570S179000, C570S140000, C570S142000, C570S153000, C570S175000

Reexamination Certificate

active

06897344

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: 6-48742 (1994-02-01), None
patent: 10-279307 (1998-10-01), None
patent: 9410973 (1994-05-01), None
76thSpring Meeting of Chemical Society of Japan, Mar. 1999 (with English Translation of the Abstract).

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