The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2000
Filed:
Aug. 04, 1998
Mining Services International, Sandy, UT (US);
Abstract
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.