公开(公告)号：EP1251116A4

公开(公告)日：2005-04-13

申请号：EP01955537

申请日：2001-07-26

申请人： JEMCO INC

发明人： FUDA KIYOSHI ,  MATSUNAGA TOSHIAKI ,  KAMIYA TAKESHI ,  OMORI KOTA

IPC分类号： C02F1/52 ,  C02F1/58 ,  C02F1/66 ,  C07C17/38 ,  C07C51/47 ,  C07C303/44 ,  C07C53/21

CPC分类号： C07C51/47 ,  C02F1/5236 ,  C02F1/5245 ,  C02F1/5254 ,  C02F1/583 ,  C02F1/66 ,  C02F2101/14 ,  C07C53/21

摘要： A salt of a divalent metal and a salt of a trivalent metal are added to a solution containing a fluorine compound and a fluoropolymer to precipitate a lamellar composite hydroxide containing the fluorine compound between lamellae and to simultaneously coagulate and precipitate the fluoropolymer suspended in the solution. Thus, a large proportion of the fluorine compound is fixed and separated from the solution together with the fluoropolymer. They are recovered according to need. By this treatment method, a fluorine compound and a fluoropolymer contained in wastewater or the like can be easily separated therefrom and the burden to be imposed on the environment or an ecological system can be lessened.

公开(公告)号：EP1251117A4

公开(公告)日：2005-02-16

申请号：EP01955538

申请日：2001-07-26

申请人： JEMCO INC

发明人： FUDA KIYOSHI ,  MATSUNAGA TOSHIAKI ,  KAMIYA TAKESHI ,  OMORI KOTA

IPC分类号： C02F1/52 ,  C02F1/58 ,  C02F1/66 ,  C07C17/38 ,  C07C51/47 ,  C07C303/44 ,  C07C53/21 ,  C07C309/06

CPC分类号： C07C51/47 ,  C02F1/5236 ,  C02F1/5245 ,  C02F1/5254 ,  C02F1/583 ,  C02F1/66 ,  C02F2101/14 ,  C07C53/21

摘要： A salt of a divalent metal and a salt of a trivalent metal are added to a solution containing a fluorine compound to precipitate a lamellar composite hydroxide containing the fluorine compound between lamellae to thereby fix a large proportion of the fluorine compound. According to need, the lamellar composite hydroxide precipitated is recovered, and the fluorine compound or a salt thereof each present between the lamellae can be isolated. Consequently, the burden to be imposed by the fluorine compound on the environment or an ecological system can be lessened.