METHOD FOR CONCENTRATING RARE EARTH ELEMENT USING BIOTITE

Title:

METHOD FOR CONCENTRATING RARE EARTH ELEMENT USING BIOTITE

Document Type and Number:

Japanese Patent JP2013204104

Kind Code:

A

Abstract:

To provide a method for concentrating a rare earth element thinly dissolved in water or the like.

Biotite is brought into contact with a dilute solution of rare earth elements so that the rare earth elements are concentrated in the biotite. The rare earth element is europium or gadolinium. Biotite including concentrated rare earth elements is obtained by the method. A value of the incorporation quantity of Eu relative to biotite exhibits pH dependency, the incorporation quantity sharply increases when pH is equal to or larger than 3.5, and Eu is incorporated with the highest concentration in the pH range of 4-5.

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Inventors:

FUKUSHI KEISUKE
HASEGAWA YUSUKE
MAEDA KOJI
MIZUNO TAKASHI
YAMAMOTO YUHEI
AOSAI DAISUKE

Application Number:

JP2012075589A

Publication Date:

October 07, 2013

Filing Date:

March 29, 2012

Export Citation:

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