C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 11/00 (2006.01) C22B 3/06 (2006.01)
Patent
CA 2154608
The present invention is a method of removing impurities from raw gold comprising the step of exposing the raw gold to a leach liquor. The leach liquor is selected to dissolve the impurities from the raw gold without dissolving a significant amount of the gold metal. Preferably, the leach liquor is a solution having a highly acidic dissociation constant, a high oxidative potential and a high tendency to complex cations. The present method may also comprise the additional steps of plastically deforming the gold prior to leaching, and roasting the gold in an oxidizing atmosphere before leaching. The raw gold may be repeatedly roasted and leached until the desired gold purity is obtained.
Hanna Mourad Michael
Lakshmanan Vaikuntam Iyer
Rishea Marc Murray
Tackaberry Patrick Donald
Protium Metals Inc.
Sim & Mcburney
LandOfFree
Method of purifying gold does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of purifying gold, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of purifying gold will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1577040