TOP > 外国特許検索 > 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

外国特許コード F130007526
掲載日 2013年7月16日
出願国 欧州特許庁(EPO)
出願番号 08877278
公報番号 2347835
出願日 平成20年10月10日(2008.10.10)
公報発行日 平成23年7月27日(2011.7.27)
国際出願番号 WO2008JP68441
国際出願日 平成20年10月10日(2008.10.10)
発明の名称 (英語) FLUORINE INSOLUBILIZING AGENT, GYPSUM WITH ELUTION OF FLUORINE CONTAINED THEREIN BEING REDUCED, AND METHOD FOR TREATING SOIL CONTAMINATED WITH FLUIRINE
発明の概要(英語)

In order to provide an insolubilizing agent for fluorine capable of economically and efficiently reducing, with an easy operation, the amount of fluorine elution from gypsum containing fluorine, soil contaminated with fluorine, or the like to be 0.8 mg/L or less which is the soil environment standard as one standard, and to provide gypsum reduced in the amount of fluorine elution by using the agent, and a method of treating fluorine contaminated soil by using the agent, an insolubilizing agent for fluorine obtained by activating calcium hydrogen phosphate dihydrate for 0.5 minutes or more in water at 40 DEG C or more was used, where a mass ratio of water/calcium hydrogen phosphate dihydrate is 25 or more.

  • 出願人(英語)
  • INSTITUTE OF NATIONAL COLLEGES OF TECHNOLOGY, JAPAN
  • CHIYODA UTE CO., LTD
  • 発明者(英語)
  • TAFU, MASAMOTO
  • CHOHJI, TETSUJI
  • FUJITA, TAKUMI
  • NAKANO, HIROKAZU
  • MORIOKA, ICHIRO
  • MORI, KATSUMI
  • HIWASA, MASAYA
  • MAEDA, MAKOTO
  • TAKENAKA, KAZUMASA
国際特許分類(IPC)
指定国 AT,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HR,HU,IE,IS,IT,LI,LT,LU,LV,MC,MT,NL,NO,PL,PT,RO,SE,SI,SK,TR

PAGE TOP

close
close
close
close
close
close