SYSTEM AND METHOD FOR RECYCLING RARE METALS

WIPO Patent Application WO/2011/132740

A1

Disclosed is a system and method for recycling rare metals, which separates and collects rare metals by making use of chemical actions in an efficient combination of adsorption and separation, thereby reducing work load and improving work safety. The method for recycling rare metals includes a leaching step in which a rare metal of palladium, platinum, and rhodium is mixed with hydrochloric acid into a hydrochloric acid mixture, which is then stirred at one atmospheric pressure or lower at a temperature from 50 to 90 degrees Centigrade. The vapor resulting from the stirring is condensed, and the hydrochloric acid resulting from the condensing is fed back to the original hydrochloric acid mixture to produce a hydrochloric acid leaching solution. The hydrochloric acid leaching solution produced in the leaching step is used to collect the rare metals.

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UEHARA HARUO (JP)

PCT/JP2011/059840

October 27, 2011

April 21, 2011

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UEHARA HARUO (JP)

C22B11/00; B01J20/22; B01J39/04; B01J49/00; C22B3/04; C22B3/24; C22B3/42; C22B3/44; C22B7/00

JP2009517548A	2009-04-30
JPS57155333A	1982-09-25
JPH06136465A	1994-05-17
JPH08176692A	1996-07-09
JPH11152592A	1999-06-08
JP2000192167A	2000-07-11

HIRAI YASUO (JP)
Yasuo Hirai (JP)

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