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Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
Alvin H. Ross, Leonard G. Guglielmin
Nuclear Technology | Volume 5 | Number 5 | November 1968 | Pages 311-318
Technical Papers and Note | doi.org/10.13182/NT68-A27996
Articles are hosted by Taylor and Francis Online.
North American methods of uranium ore processing include leaching with either sulphuric acid or a soda ash-sodium bicarbonate mixture. From the acid leach solutions, either solvent extraction or ion exchange extracts high grade uranium, which is then precipitated with ammonia or magnesia. Finer grinding, higher temperatures, and sometimes pressure are required with the alkaline leach. Uranium mills can now be built with confidence in design and performance. The average capital cost for acid leach mills for 500 to 5500 tons of ore per day varies from $7550 to $3350 per ton daily, respectively; alkaline leach mills cost 10% more. Direct milling costs range from $0.88 (New Mexico) to $1.53 (Elliot Lake, Canada) per pound of U3O8 recovered and are decreasing in many of the operations. Ore grade has little effect cm recovery yield or on cost per tan milled but a marked effect on cost per pound of U3O8 recovered. Although demand is for yellow cake, the integration of mining, milling, and refining operations could eliminate the yellow cake precipitation step and save 7 to 11¢/lb U. Direct production of UF4 is feasible, but ammonium diuranate is a good versatile product, and there is little economic advantage to feeding refineries with high purity concentrates.