This book is the product of forty years of hands on physiochemical work with both ferrous and nonferrous metals and with the metallurgy of refining extracting and casting its purpose is to cover the various methods of recovery and refining of precious metals. Nonferrous metals and with the metallurgy of refining extracting and casting its purpose is to cover the various methods of recovery and refining of precious metals both primary sources placer gold black sand and ores and secondary sourcesa scrap jewelry electronic scrap old films buffings. Recovery and refining we offer a comprehensive recycling system ranging from the recovery and refining of used scrap metal containing precious metals to the remanufacture of those metals into products. I have been into mining recoveryand refining of all types of precious metals for over 44 years i have many e booksand books that is still in the making and being published thewinner will receive all 9 of the e book guides below i can email them to thewinner ahead of time but the winner will also receive in the mail a cd or dvdwith the e
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