Uranium metallurgy

W. D. Wilkinson, Uranium Metallurgy, Vol. 1, Trocess Metallurgy, Vol. 11, Uranium Corrosion and Alloys, Wdey-lnterscience, New York, 1962. 

This thermal plasma process is an advanced technology of uranium metallurgy (Tumanov,... 

W. Wilkinson, "Uranium Metallurgy, Vol. 1 Uranium Process Metallurgy, Interscience, N.Y., 1962. 

Solvent Extraction. Liquid—hquid extractioa, well known ia the chemical iadustry, was first used ia extractive metallurgy for the processiag of uranium. When a dilute solution of uranium is contacted with an extractant such as di(2-ethylhexyl) phosphoric acid (D2EHPA) or R2HPO4, dissolved ia... 

Nuclear Applications. Powder metallurgy is used in the fabrication of fuel elements as well as control, shielding, moderator, and other components of nuclear-power reactors (63) (see Nuclearreactors). The materials for fuel, moderator, and control parts of a reactor are thermodynamically unstable if heated to melting temperatures. These same materials are stable under P/M process conditions. It is possible, for example, to incorporate uranium or ceramic compounds in a metallic matrix, or to produce parts that are similar in the size and shape desired without effecting drastic changes in either the stmcture or surface conditions. OnlyHttle post-sintering treatment is necessary. 

Nonferrous Metal Production. Nonferrous metal production, which includes the leaching of copper and uranium ores with sulfuric acid, accounts for about 6% of U.S. sulfur consumption and probably about the same in other developed countries. In the case of copper, sulfuric acid is used for the extraction of the metal from deposits, mine dumps, and wastes, in which the copper contents are too low to justify concentration by conventional flotation techniques or the recovery of copper from ores containing copper carbonate and siUcate minerals that caimot be readily treated by flotation (qv) processes. The sulfuric acid required for copper leaching is usually the by-product acid produced by copper smelters (see Metallurgy, extractive Minerals RECOVERY AND PROCESSING). 

R. C. Meiiitt, Tie Extractive Metallurgy of Uranium, Coloiado School of Mines Research Institnte and U.S. AEG, Golden, Colo., 1971. 

J. C. Wamei, Metallurgy of Uranium, Oak Ridge, Teimessee, Natuial Nuclear Energy Series, Div. IV, U.S. AFC Technical Information Service, 1953. 

Holden, A.N. (1958) Physical Metallurgy of Uranium, Chapter II (Addison-Wesley, Reading). 

R. C. Merritt, The Extractive Metallurgy of Uranium, Colorado School of Mines Research Institute, USA, 1971. 

Miller, A.R., Stanton, R.A., Cluff, G.R., Male, M.J., 1986. Uranium deposits and prospects of the Baker Lake Basin and subbasins Central District of Keewatin, Northwest Territories. In Evans, E.L. (Ed.) Uranium Deposits of Canada. Canadian Institute of Mining and Metallurgy, Special Volume 33, 263-285. 

This article presents a general discussion of actinide metallurgy, including advanced methods such as levitation melting and chemical vapor-phase reactions. A section on purification of actinide metals by a variety of techniques is included. Finally, an element-by-element discussion is given of the most satisfactory metallurgical preparation for each individual element actinium (included for completeness even though not an actinide element), thorium, protactinium, uranium, neptunium, plutonium, americium, curium, berkelium, californium, and einsteinium. 

Fouques, J. P., Fowler, M., Knipping, H. D. Schimann, K. 1986. The Cigar Lake uranium deposit - Discovery and general characteristics. In Evans, E. L. (ed) Uranium Deposits of Canada, Special Volume. Canadian Institute of Mining and Metallurgy, Regina, SK, Canada, 33, 218-229. 

Uranium and Uranium Alloys , in J.J. Burke et al, Eds, Physical Metallurgy of Uranium Alloys , Brookhill Publ Co (1976) also see J.C. Bailer et al, Eds, Comprehensive Inorganic Chemistry , Vol 5, Pergamon Press, Oxford (1973), 40-42 26) LJ. Weirick, Corrosion Testing of the General Electric Mantech Gau 8/A Penetrator, SANDIA 76-8055 (1977) 27) W.C. Hanson... 

VOIDS. Empty spaces of molecular dimensions occurring between closely packed solid particles, as in powder metallurgy. Their presence permits barriers made by powder metallurgy techniques to act as diffusion membranes for separation of uranium isotopes in the gaseous diffusion process. 

Solvent extraction is a well-established method of separation in the field of extractive metallurgy. First applied to the extraction of uranium for nuclear purposes in the early 1940s, the technique currently now finds widespread use in the recovery of uranium, copper, zinc, cobalt, nickel,... 

The use of solvating extractants in the recovery of gold and platinum-group metals (PGM) was described in the previous section. These extractants have also found some specialized applications in the extractive metallurgy of base metals. For example, they have been used in the recovery of uranium, the separation of zirconium and hafnium, the separation of niobium and tantalum, the removal of iron from solutions of cobalt and nickel chlorides, and in the separation of the rare-earth metals from one another. 

C. A. Fleming, in Vacation School on Uranium Ore Processing , South African Institute of Mining and Metallurgy,... 

R. G. Bellamy and N. A. Hill, Extraction and Metallurgy of Uranium, Thorium and Beryllium , Pergamon, Oxford,... 

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