METHOD FOR COLLECTING RARE EARTH METALS USING MIXING AND EXTRACTING AGENT

Title:

METHOD FOR COLLECTING RARE EARTH METALS USING MIXING AND EXTRACTING AGENT

Document Type and Number:

WIPO Patent Application WO/2016/072529

Kind Code:

A1

Abstract:

The present invention relates to a method for collecting rare earth metals, the method being capable of extracting praseodymium (Pr) and neodymium (Nd) from a hydrochloric acid solution containing the elements at excellent efficiency, and further improving separability of praseodymium and neodymium, of which separability is degraded due to similar chemical features therebetween.

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Inventors:

LEE MAN-SEUNG (KR)

Application Number:

PCT/KR2014/010492

Publication Date:

May 12, 2016

Filing Date:

November 04, 2014

Export Citation:

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Assignee:

MOKPO NAT UNIV IND ACAD COOP (KR)

International Classes:

C22B3/02; C22B3/44

Foreign References:

KR101420117B1	2014-07-17
KR20130001694A	2013-01-04
US5338520A	1994-08-16
JP2002536550A	2002-10-29

Other References:

BANDA ET AL.: "Solvent extraction separation of Pr and Nd from chloride solution containing La using Cyanex 272 and its mixture with other extractants", SEPARATION AND PURIFICATION TECHNOLOGY, vol. 98, 19 August 2012 (2012-08-19), pages 481 - 487

Attorney, Agent or Firm:

IAM PATENT FIRM (KR)
특허법인 아이엠 (KR)

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