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Qiankun Wang
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Pitt Meadows, CA
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Patents Grants
last 30 patents
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Patent Grant
Recovery of gold from roaster calcine leach tailings
Patent number
9,194,023
Issue date
Nov 24, 2015
Barrick Gold Corporation
Qiankun Wang
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for recovering precious metals and copper from leach solutions
Patent number
9,051,625
Issue date
Jun 9, 2015
Barrick Gold Corporation
Yeonuk Choi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
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Patent Application
RECOVERY OF GOLD FROM ROASTER CALCINE LEACH TAILINGS
Publication number
20140112823
Publication date
Apr 24, 2014
BARRICK GOLD CORPORATION
Qiankun Wang
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR RECOVERING PRECIOUS METALS AND COPPER FROM LEACH SOLUTIONS
Publication number
20130091990
Publication date
Apr 18, 2013
BARRICK GOLD CORPORATION
Yeonuk Choi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...