NOVEL PHOSPHONEAMIDES, METHOD FOR THEIR PREPARING AND THEIR USING Russian patent published in 2008 - IPC C07F9/44 B01D11/00 C22B3/00 C22B59/00

Abstract RU 2314314 C2

FIELD: chemistry of organophosphorus compounds, chemical technology.

SUBSTANCE: invention relates to novel compounds used for extraction of rare-earth metal ions and comprising phosphoneamide compound represented by he formula [1]: wherein R¹ means aryl group, aralkyl group under condition that each group can comprise a substitute chosen from alkoxy-groups; R² means alkyl group, alkenyl group, aryl group, aralkyl group under condition that each group can comprise a substitute chosen from alkyl groups, alkoxy-groups; R³ means hydrogen atom, aryl group, aralkyl group under condition that each group can comprise a substitute chosen from alkyl groups, alkoxy-groups, halogen atoms; and two radical R can be combined to form alkylene group. Also, invention relates to a method for extraction of rare-earth metal ions and to a method for reverse extraction of rare-earth metal ions. Invention provides preparing novel phosphoneamide compounds and method for extraction and reverse extraction of rare-earth metal ions.

EFFECT: improved preparing method, valuable properties of compounds.

3 cl, 4 tbl, 44 ex

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RU 2 314 314 C2

Authors

Makioka Josikazu

Khajasi Terujuki

Tanaka Masato

Khan Li-Biao

Dates

2008-01-10—Published

2003-03-03—Filed