METHOD OF PROCESSING EUDIALYTE CONCENTRATE Russian patent published in 1995 - IPC

Abstract RU 2040568 C1

FIELD: chemical technology. SUBSTANCE: decomposition is carried out with 6-8 mole/l HCl at stoichiometric ratio followed by gel holding for 10-20 min. Gel is dried at 130-170 C for 60-90 min, and after leaching with water rare-earth elements were solubilized, and zirconium remained in sludge is leached with mineral acid. Leaching is carried out at the phase ratio solid: liquid (1:3)-(1:4) at the room temperature for 15-20 min. EFFECT: improved method of eudialyte concentrate processing. 2 cl

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RU 2 040 568 C1

Authors

Chekmarev A.M.

Chizhevskaja S.V.

Povetkina M.V.

Eljutin A.V.

Jufrikov V.A.

Chistov L.B.

Dates

1995-07-25Published

1993-02-10Filed