Modern Copper Smelting: being lectures delivered at Birmingham University, greatly extended and adapted and with and introduction on the history, uses and properties of copper.Levy, Donald M.
Science
Modern Copper Smelting: being lectures delivered at Birmingham University, greatly extended and adapted and with and introduction on the history, uses and properties of copper.
Levy, Donald M.
Copper -- Metallurgy
N
Native ores, 43, 45.
" preliminary treatment, 51.
Natural draft in reverberatories, 85.
Neal, C. B., 215.
Nevada, 8, 14, 17, 75.
" copper output, 17.
Newfoundland copper output, 15.
New Mexico copper ores, 45.
" " output, 17.
Nicholl and James process, 7, 35.
Nicholls, F. S., 191.
Nickel and copper, 34.
" in bessemerising, 205.
" in copper, 20, 23, 33, 44, 217.
" " mattes, 37, 205.
" in electro-refining, 230.
" in refining, 217, 230.
Nitric acid and copper, 33.
Nitrogen in blast-furnace gases, 189.
“Normal” converter practice, 211.
North American supply, 15, 17, 45.
" Carolina ores, 46.
Norway, copper output, 15.
Nose-pieces of spouts, 159, 160, 164.
Notches (see _Slag notches_).
O
Objections to external settling, 133.
" internal settling, 134.
" roasting, 62, 67.
" water-jacketing, 124.
Objects of electrolytic refining, 218.
" furnace refining, 223.
Offerhaus, C., 93, 112, 191, 216.
Off-takes of blast furnaces, 140, 167.
O’Harra calciner, 70.
Oil burners, 106, 107.
" fuel for reverberatory furnaces, 81, 91, 105, 106–108.
Open-air roasting, 67.
Operation of the blast furnace, 114, 146, 158, 178.
" of converters, 192, 207, 210–214.
" electro-refining process, 227, 230, 236.
" furnace refining process, 221, 223, 238–243.
" large reverberatories, 81.
Ore bedding, 156.
" of copper, 43–47.
" for converter fluxes, 213, 214.
" " linings, 201, 214.
" for pyritic process, 171, 176, 177, 184, 187, 188.
" -lining for settlers, 162, 163, 186.
Organisation in bessemerising, 214.
" at smelters, 47, 75.
Outlets of blast furnaces, 160.
" settlers, 164–166.
Output of blast furnaces, 124, 129–131, 133, 135, 188.
" copper, 15–17.
" electrolytic tanks, 228, 229, 232, 234, 237.
Over-fire, 176, 184.
Over-poled copper, 24, 26, 42, 50, 242.
Oxidation in bessemerising, 194, 195, 200, 205, 207, 208,
210, 211, 214, 217.
" in the blast furnace, 113–122, 171.
" in electro-refining, 231, 232.
" in furnace refining, 221, 222, 239–242.
" in pyritic smelting, 174–184.
" in smelting, 62.
" reactions in roasting, 64, 65.
Oxides in copper, 26–29, 239–242.
" of copper, 35, 43.
" ores, 43, 45–47.
" " Preliminary treatment of, 51.
Oxidised constituents of the blast-furnace charge, 113–115, 118, 119.
Oxland roaster, 72, 73.
Oxygen and copper, 33, 40, 41.
" in copper, 20, 23, 26–33, 42, 44, 218, 239–242.
" in furnace gases, 171, 172, 182, 189, 190.
" in furnace refining, 221, 222, 239–243.
" in gases for acid manufacture, 189–190.
" in pyritic smelting, 172–175, 182, 183.
" ratio, 147, 150.
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