Title:
MANUFACTURE OF PHOSPHONIC ACID ESTER
Document Type and Number:
Japanese Patent JPS5984894
Kind Code:
A
Abstract:
New diphosphonic acid diesters in which the two phosphorus atoms are bound by a hydrocarbon group while each of the two acid functions of the diphosphonate is esterified by a radical having at least three carbon atoms are suitable for various known uses of the different diphosphonates and in particular for the complexing of heavy metals; they are used in particular for the extraction of uranium and metals associated with it.
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Inventors:
JIYORUJIYU SUTEYURUTSU
CHIERI PANSE
JIYANNKUROODO GOOCHIE
CHIERI PANSE
JIYANNKUROODO GOOCHIE
Application Number:
JP18942983A
Publication Date:
May 16, 1984
Filing Date:
October 12, 1983
Export Citation:
Assignee:
ELF AQUITAINE
International Classes:
C07F9/38; C09K3/00; C07F9/40; C22B3/38; C22B60/02; (IPC1-7): C07F9/40
Attorney, Agent or Firm:
Shinichi Ogawa