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  2.  > How I Can Filter A Gold Ore In India

how i can filter a gold ore in india

May 22 2010 Filter the solution and neutralize it with Urea or just heat it up until all of the nitric vaporized Watch out not to lose any precious metal during the heating Test the pH Precipitate gold using sodium metabisulfite zinc You can use above method for any kind of source which contains gold

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