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Anderson mine

Most writers have proposed a magmatic source for the principal elements of these deposits (U, F, Be, Hg, Th, Mo, etc.), also postulating elevated temperatures. Solutions with the same elements could, however, be produced by diagenetic or mildly hydrothermal alteration of volcanic sediments. Localization of uranium in some deposits appears to be controlled by carbonaceous material (Maureen, Australia Anderson mine, U.S.A.), but in others the controls are not understood. [Pg.121]

S. G. Malghan, in A. L. Mular and M. A. Anderson, eds.. Design and Installation of Concentration and Dewatering Circuits, Society of Mining Engineers, Littleton, Colo, 1986, p. 76. [Pg.54]

K. K. Kelly, J. C. Southard, and C. T. Anderson, US. Bureau of Mines Technical Tapers Technical Paper 625,1941. [Pg.424]

Ganguli PM, Mason RP, Abu-Saba KE, Anderson RS, Flegal AR. 2000. Mercury speciation in drainage from the New Idria mercury mine, California. Environ Sci Technol 34 4773 779. [Pg.83]

I know what I would order in such a case, but this journey is not mine to command. After a moment Anderson says, Have no fear, my lord, it is provided for, as are all matters to do with the security and good ordering of His Grace s affairs. ... [Pg.52]

Anderson, E.P. and D.L. Mackas. 1986. Lethal and sublethal effects of a molybdenum mine tailing on marine zooplankton mortality, respiration, feeding and swimming behavior in Calanus marshallae, Metridia pacifica and Euphausia pacified. Mar. Environ. Res. 19 131-155. [Pg.1573]

Anderson S. 1995. Nickel A year of contradiction and transition. Engineering and Mining Journal, 196(3) 63-67. [Pg.224]

Figure 4. Comparison of isotopic composition of pyritic and organic sulfur in low- and high-sulfur coals in the Illinois Basin. Data are taken form Westgate and Anderson (113). Samples were collected from the top, middle, and base of the Herrin Coal at each mine. Figure 4. Comparison of isotopic composition of pyritic and organic sulfur in low- and high-sulfur coals in the Illinois Basin. Data are taken form Westgate and Anderson (113). Samples were collected from the top, middle, and base of the Herrin Coal at each mine.
Shultz, Seligman, Shaw, and Anderson (5) attempted to prepare nitrides by treating raw (oxide) iron catalysts directly with ammonia. An analogous reaction, the formation of iron carbides by treatment of raw precipitated catalysts with carbon monoxide or synthesis gas, can be carried out at temperatures between 200° and 325°C. However, ammonia treatment of a precipitated catalyst (Fe203-Cu0-K2C03, Bureau of Mines number P3003.24) at 300°, 350°, and 400°C. resulted... [Pg.357]

Hall, Dieter, Hofer, and Anderson (19) studied reactions of nitrides and carbonitrides in a reduced, fused iron catalyst (Bureau of Mines number D3001). The results of these experiments were in general similar to those of Jack, and most of the differences may be explained by the differences in the type of iron employed. The major discrepancy was that in the catalyst of large surface area and small crystallite size, the <-carbonitride phase was found under conditions under which massive iron is converted to the f-phase. Since the transformation of the - to the f-phase involves only slight changes in the lattice positions of iron atoms and small changes in the x-ray pattern, it is possible either that this transformation did not occur in the catalyst or that the pattern of the f-phase could not be distinguished from that of the e-phase in the diffuse diffraction patterns. [Pg.362]

Robert B. Anderson, Synthetic Fuels Research Branch, Bureau of Mines, Bruceton, Pennsylvania... [Pg.494]

Another mode of activation ofiron catalysis is their nitridation by treatment with anhydrous ammonia at 300-350 C. This technique was developed in about 1950 by Anderson and coworkers at the U.S. Bureau of Mines (61,62]. The epsilon iron nitride produced (FejN) gave a high and relatively constant activity, and an unusual selectivity, producing a relatively low molecular weigitt product with large yields of alcohols. [Pg.57]

Anderson, T. "An Evaluation of the Corrosion Resistance of 2>J Cr-1 Mo Steel in a Lithium-Lead Liquid" M.S. Thesis, Dept, of Metallurgical Engineering, Colorado School of Mines Golden, CO, 1980. [Pg.539]


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See also in sourсe #XX -- [ Pg.121 ]




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