Mining Services International

Clayton Odum

John T Day

Mark Reynolds

Metal cyanide suitable for shipment is prepared by introducing an aqueous metal cyanide feed stream to a crystallizer to form a slurry of metal cyanide crystals in their mother liquor. The crystallization step occurs at a temperature between 30.degree. C. and 70.degree. C., and preferably between 50.degree. C. to about 60.degree. C. The metal cyanide crystals are separated from their mother liquor to form a wet cake product containing from about 75 to 98 wt. % anhydrous metal cyanide crystals, from about 4 to 24 wt. % water, and from about 1 to 5 wt. % of metal hydroxide. The wet cake product is placed into a shipping container for shipment to a desired location. A metal cyanide solution is prepared by dissolving the wet cake product.

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Winnemucca, NV, United States of America

Clayton Odum