The Metallurgy of Lead & Silver: LeadGriffin, 1899 - Lead |
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Page xi
... Charge , 110 PAGE Lead Silicate , 124 Sulphide , 124 " " Sulphate , 124 Ferric Oxide and Magnetic " " Slag , 110 Oxide , 127 Fluxes , 111 Use of Burnt Lime instead of Limestone , 112 · Pyrites , Sulphide , Ferrous Sulphate , 127 127 127 ...
... Charge , 110 PAGE Lead Silicate , 124 Sulphide , 124 " " Sulphate , 124 Ferric Oxide and Magnetic " " Slag , 110 Oxide , 127 Fluxes , 111 Use of Burnt Lime instead of Limestone , 112 · Pyrites , Sulphide , Ferrous Sulphate , 127 127 127 ...
Page xii
... Charge , 173 Analyses of Ores and Slags ,. 173 1. Dark Tuyeres with Long Noses , 191 • Calculating the Charge , 177 Furnace Manipulation , 186 1. Blowing - in , 186 2. " Hot Top , " 3. Uneven Descent of Charges , 191 191 2. Blowing ...
... Charge , 173 Analyses of Ores and Slags ,. 173 1. Dark Tuyeres with Long Noses , 191 • Calculating the Charge , 177 Furnace Manipulation , 186 1. Blowing - in , 186 2. " Hot Top , " 3. Uneven Descent of Charges , 191 191 2. Blowing ...
Page 16
... charge should be completely melted in from twenty to thirty minutes , after which it is well to leave it in the fire ... charges on the muffle system is given by Furman . * Copper ores and furnace products are best treated by the special ...
... charge should be completely melted in from twenty to thirty minutes , after which it is well to leave it in the fire ... charges on the muffle system is given by Furman . * Copper ores and furnace products are best treated by the special ...
Page 41
... charge begins to soften , and are incomplete if it be allowed to melt . The charge is worked up with the rabble , lime being generally added to stiffen it , and the cooling consequent on opening the doors stops the first reaction period ...
... charge begins to soften , and are incomplete if it be allowed to melt . The charge is worked up with the rabble , lime being generally added to stiffen it , and the cooling consequent on opening the doors stops the first reaction period ...
Page 42
... charge and preventing fusion . Barytes and fluorspar remain inert during the process , but when present together tend to increase the fusibility of the charge . Chalybite often occurs as a gangue of galena ores , but can be mostly ...
... charge and preventing fusion . Barytes and fluorspar remain inert during the process , but when present together tend to increase the fusibility of the charge . Chalybite often occurs as a gangue of galena ores , but can be mostly ...
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Common terms and phrases
20 per cent amount antimony arsenic assay average blast furnace bottom brick Broken Hill bullion carbon cast-iron charcoal charge CHARLES GRIFFIN coal coke concentrates consumption containing cooling copper cost crucible crust cupellation desilverisation dross dust employed Engineers EXETER STREET feet firebrick flue flue-dust Freiberg fuel fume fusible galena gases gold hearth heat Hofman inches Lautenthal lead and silver lime liquation litharge matte melting metallic Metallurgy Metallurgy of Lead method mixture molten ordinary oxide oxidised Parkes process pipe plates Port Pirie practice produced proportion pyrites quantity reaction reduced residue reverberatory reverberatory furnace rich roasting sample Schnabel separate shown in Figs siliceous sintering SiO2 skimmings slag smelting smelting zone softening furnace speiss sulphate sulphide sulphuric acid Table tapped temperature tons Trans treated tuyeres usually volatilisation Water Jacket weight work-lead zinc zinc sulphate
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