The Online Books Page

Books by H. E. Powell:

Books in the extended shelves:

• Powell, H. E.: Alkyl-dithiocarbamic acid amine salts as flotation collectors for sulfide lead slime (U.S. Dept. of the Interior, Bureau of Mines, 1962), also by T. E. Hill and W. A. Calhoun (page images at HathiTrust)
• Powell, H. E.: Beneficiating a complex sulfide-oxide lead-zinc ore from Missouri (U.S. Dept. of the Interior, Bureau of Mines, 1960) (page images at HathiTrust)
• Powell, H. E.: Beneficiation of refractory clay (U.S. Dept. of the Interior, Bureau of Mines, 1962), also by C. K. Miller and W. A. Calhoun (page images at HathiTrust)
• Powell, H. E.: Converting stainless steel furnace flue dusts and wastes to a recyclable alloy (Bureau of Mines, 1975), also by R. L. Crosby and W. M. Dressel (page images at HathiTrust)
• Powell, H. E.: The hydrocyclone in clay beneficiation (Bureau of Mines, 1963), also by W. A. Calhoun (page images at HathiTrust)
• Powell, H. E.: Infrared spectroscopy studies of a xanthate-galena system (U.S. Dept. of the Interior, Bureau of Mines, 1966), also by Ralph E. Coleman and United States Bureau of Mines (page images at HathiTrust)
• Powell, H. E.: Investigation of low-grade bauxites as potential sources of aluminum by caustic desilication and alumina extraction (U.S. Dept. of the Interior, Bureau of Mines, 1954), also by W. A. Calhoun (page images at HathiTrust)
• Powell, H. E.: Laboratory beneficiation of East Texas limonite-siderite iron ores (U.S. Dept. of the Interior, Bureau of Mines, 1960), also by W. M. Dressel (page images at HathiTrust)
• Powell, H. E.: Magnetic susceptibility of 19 nickel- and cobalt-bearing minerals (U.S. Dept. of the Interior, Bureau of Mines, 1967) (page images at HathiTrust)
• Powell, H. E.: Magnetic susceptibility of 34 manganese-bearing minerals (U.S. Dept. of the Interior, Bureau of Mines, 1968), also by Lee N. Ballard (page images at HathiTrust)
• Powell, H. E.: Magnetic susceptibility of copper-, lead-, and zinc-bearing minerals (U.S. Dept. of the Interior, Bureau of Mines, 1968), also by Lee N. Ballard (page images at HathiTrust)
• Powell, H. E.: Magnetic susceptibility of siderite (Bureau of Mines, 1963), also by C. K. Miller and United States Bureau of Mines (page images at HathiTrust)
• Powell, H. E.: Polyethoxylated amines as flotation collectors for slimed lead minerals (U.S. Dept. of the Interior, Bureau of Mines, 1964), also by Thomas E. Hill, W. A. Calhoun, and United States Bureau of Mines (page images at HathiTrust)
• Powell, H. E.: Recovery of phosphates and metals from phosphate sludge by solvent extraction (U.S. Dept. of Interior, Bureau of Mines, 1972), also by A. A. Cochran, L. L. Smith, and United States Bureau of Mines (page images at HathiTrust)
• Powell, H. E.: Recovery of phosphates and metals from waste phosphate sludge by reduction-sinter processes (U.S. Dept. of Interior, Bureau of Mines, 1971), also by R. F. Waters, A. A. Cochran, and United States Bureau of Mines (page images at HathiTrust)
• Powell, H. E.: Recovery of zinc, copper, and lead-tin mixtures from brass smelter flue dusts (U.S. Dept. of Interior, Bureau of Mines, 1972), also by L. L. Smith, L. W. Higley, H. Fukubayashi, Rolla Metallurgy Research Center (U.S.), and United States Bureau of Mines (page images at HathiTrust)
• Powell, H. E.: Recovery of zinc, copper, silver, and iron from zinc smelter residue (U.S. Dept. of Interior, Bureau of Mines, 1973), also by L. W. Higley, Rolla Metallurgy Research Center (U.S.), and United States Bureau of Mines (page images at HathiTrust)
• Powell, H. E.: Removing quartz and other impurities from refractory clays by mineral dressing methods (U.S. Dept. of the Interior, Bureau of Mines, 1961), also by W. A. Calhoun (page images at HathiTrust)
• Powell, H. E.: Solvent extraction of nickel and zinc from a waste phosphate solution (U.S. Dept. of Interior, Bureau of Mines, 1970), also by A. A. Cochran, L. L. Smith, and United States Bureau of Mines (page images at HathiTrust)
• Powell, H. E.: Thermal decompositions of siderite and consequential reactions (U.S. Dept. of the Interior, Bureau of Mines, 1965), also by United States Bureau of Mines (page images at HathiTrust)

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