Top > Search of International Patents > FLUORINE INSOLUBILIZING AGENT, GYPSUM WITH ELUTION OF FLUORINE CONTAINED THEREIN BEING REDUCED, AND METHOD FOR TREATING SOIL CONTAMINATED WITH FLUIRINE

FLUORINE INSOLUBILIZING AGENT, GYPSUM WITH ELUTION OF FLUORINE CONTAINED THEREIN BEING REDUCED, AND METHOD FOR TREATING SOIL CONTAMINATED WITH FLUIRINE

Foreign code F110005804
File No. S2010-0791-N0
Posted date Oct 11, 2011
Country WIPO
International application number 2008JP068441
International publication number WO 2010/041330
Date of international filing Oct 10, 2008
Date of international publication Apr 15, 2010
Title FLUORINE INSOLUBILIZING AGENT, GYPSUM WITH ELUTION OF FLUORINE CONTAINED THEREIN BEING REDUCED, AND METHOD FOR TREATING SOIL CONTAMINATED WITH FLUIRINE
Abstract This invention provides a fluorine insolubilizing agent, which can reduce the amount of fluorine eluted, for example, from a fluorine-containing gypsum or a soil contaminated with fluorine to not more than 0.8 mg/L as a rough indication, which is a soil environment standard, through a simple work in a more cost-effective and efficient manner, and a gypsum with the elution amount of fluorine contained therein being reduced using the fluorine insolubilizing agent and a method for treating a soil contaminated with fluorine using the fluorine insolubilizing agent. Calcium hydrogen phosphate dihydrate, which has been activated in water of 40 deg.C or above at a water/calcium hydrogen phosphate dihydrate mass ratio of not less than 25 for 0.5 min or longer, is used as the fluorine insolubilizing agent.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • INSTITUTE OF NATIONAL COLLEGES OF TECHNOLOGY, JAPAN
  • CHIYODA UTE CO., LTD.
  • Inventor
  • TAFU, Masamoto
  • CHOHJI, Tetsuji
  • FUJITA, Takumi
  • NAKANO, Hirokazu
  • MORIOKA, Ichiro
  • MORI, Katsumi
  • HIWASA, Masaya
  • MAEDA, Makoto
  • TAKENAKA, Kazumasa
IPC(International Patent Classification)
Specified countries AE(UTILITY MODEL),AG,AL(UTILITY MODEL),AM(PROVISIONAL PATENT)(UTILITY MODEL),AO(UTILITY MODEL),AT(UTILITY MODEL),AU,AZ(UTILITY MODEL),BA,BB,BG(UTILITY MODEL),BH(UTILITY MODEL),BR(UTILITY MODEL),BW(UTILITY MODEL),BY(UTILITY MODEL),BZ(UTILITY MODEL),CA,CH,CN(UTILITY MODEL),CO(UTILITY MODEL),CR(UTILITY MODEL),CU(INVENTOR'S CERTIFICATE),CZ(UTILITY MODEL),DE(UTILITY MODEL),DK(UTILITY MODEL),DM,DO(UTILITY MODEL),DZ,EC(UTILITY MODEL),EE(UTILITY MODEL),EG(UTILITY MODEL),ES(UTILITY MODEL),FI(UTILITY MODEL),GB,GD,GE(UTILITY MODEL),GH(UTILITY CERTIFICATE),GM,GT(UTILITY MODEL),HN,HR(CONSENSUAL PATENT),HU(UTILITY MODEL),ID,IL,IN,IS,JP(UTILITY MODEL),KE(UTILITY MODEL),KG(UTILITY MODEL),KM,KN,KP(INVENTOR'S CERTIFICATE)(UTILITY MODEL),KR(UTILITY MODEL),KZ(PROVISIONAL PATENT)(UTILITY MODEL),LA,LC,LK,LR,LS(UTILITY MODEL),LT,LU,LY,MA,MD(UTILITY MODEL),ME(PETTY PATENT),MG,MK,MN,MW,MX(UTILITY MODEL),MY(UTILITY-INNOVATION),MZ(UTILITY MODEL),NA,NG,NI(UTILITY MODEL),NO,NZ,OM,PG,PH(UTILITY MODEL),PL(UTILITY MODEL),PT(UTILITY MODEL),RO,RS(PETTY PATENT),RU(UTILITY MODEL),SC,SD,SE,SG,SK(UTILITY MODEL),SL(UTILITY MODEL),SM,ST,SV(UTILITY MODEL),SY,TJ(UTILITY MODEL),TM(PROVISIONAL PATENT),TN,TR(UTILITY MODEL),TT(UTILITY CERTIFICATE),TZ,UA(UTILITY MODEL),UG(UTILITY CERTIFICATE),US,UZ(UTILITY MODEL),VC(UTILITY CERTIFICATE),VN(PATENT FOR UTILITY SOLUTION),ZA,ZM,ZW,EP(AT,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HR,HU,IE,IS,IT,LT,LU,LV,MC,MT,NL,NO,PL,PT,RO,SE,SI,SK,TR),OA(BF(UTILITY MODEL),BJ(UTILITY MODEL),CF(UTILITY MODEL),CG(UTILITY MODEL),CI(UTILITY MODEL),CM(UTILITY MODEL),GA(UTILITY MODEL),GN(UTILITY MODEL),GQ(UTILITY MODEL),GW(UTILITY MODEL),ML(UTILITY MODEL),MR(UTILITY MODEL),NE(UTILITY MODEL),SN(UTILITY MODEL),TD(UTILITY MODEL),TG(UTILITY MODEL)),AP(BW(UTILITY MODEL),GH(UTILITY MODEL),GM(UTILITY MODEL),KE(UTILITY MODEL),LS(UTILITY MODEL),MW(UTILITY MODEL),MZ(UTILITY MODEL),NA(UTILITY MODEL),SD(UTILITY MODEL),SL(UTILITY MODEL),SZ(UTILITY MODEL),TZ(UTILITY MODEL),UG(UTILITY MODEL),ZM(UTILITY MODEL),ZW(UTILITY MODEL)),EA(AM,AZ,BY,KG,KZ,MD,RU,TJ,TM)

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