Abstract
A process for the recovery of silver present in photographic and X-ray films is described. It is based on leaching by sodium cyanide solution which is accelerated in the presence of hydrogen peroxide. The process can be used industrially. The control of the use of CN − allows us to repeatedly use the initial solution, the silver content of which increases after each application. The subsequent recovery of the silver is achieved by electrolysis. The process gives a product of good quality and offers a very high yield.
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