Title:
METHOD FOR RECOVERING ACID AND PLATINUM GROUP METAL FROM LEACHING SOLUTION OF WASTE CATALYST
Document Type and Number:
WIPO Patent Application WO/2014/178586
Kind Code:
A1
Abstract:
The present invention relates to a method for recovering an acid and a platinum group metal from a leaching solution of a waste catalyst and, more particularly, to a method for recovering an acid and a platinum group metal from a leaching solution of a waste catalyst, comprising the steps of: filtering the leaching solution of the waste catalyst and thereafter providing the leaching solution in a thickening tank, heating the leaching solution, and recovering the acid that is included in the leaching solution; following the recovery of the acid, providing a concentrated solution of the leaching solution in a substitution tank and adding a metal, thereby subjecting the concentrated solution to a substitution reaction; and following the substitution reaction, washing, with an acid, a solid separated by solid-liquid separation and recovering the solid.
Inventors:
LEE JIN-YOUNG (KR)
CHUNG KYEONG-WOO (KR)
CHUNG KYEONG-WOO (KR)
Application Number:
PCT/KR2014/003723
Publication Date:
November 06, 2014
Filing Date:
April 28, 2014
Export Citation:
Assignee:
KOREA INST GEOSCIENCE & MINERA (KR)
International Classes:
C22B3/04; C22B7/00; C22B11/00
Foreign References:
| JPH08176692A | 1996-07-09 | |||
| KR100858551B1 | 2008-09-25 | |||
| KR100888040B1 | 2009-03-10 | |||
| KR20100124030A | 2010-11-26 |
Other References:
See also references of EP 2993242A4
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
특허법인 대아 (KR)
특허법인 대아 (KR)
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