The Metallurgy of Lead & Silver: Lead |
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Page ix
... " " Silicates , 26 Borates , 26 22 223 Galena , Cerussite , Anglesite , Pyromorphite and Mimetesite , 2 *** 32 Commercial Lead Ores , 33 Oxidised Ores , 34 Sulphide Ores , 34 Classification of Methods , PAGE PAGE 38 39 Precipitation Method.
... " " Silicates , 26 Borates , 26 22 223 Galena , Cerussite , Anglesite , Pyromorphite and Mimetesite , 2 *** 32 Commercial Lead Ores , 33 Oxidised Ores , 34 Sulphide Ores , 34 Classification of Methods , PAGE PAGE 38 39 Precipitation Method.
Page 12
... Galena , Galena , with blende and pyrites , 10-15 0.0-0.5 grms . litharge helps . 20-35 0.6-0.9 grms . litharge helps . Lead carbonate ,. 10-15 0.0-0.5 Iron pyrites , 30-45 0.3-0.8 Arsenical pyrites , Antimonial ores , Blende , Lead ...
... Galena , Galena , with blende and pyrites , 10-15 0.0-0.5 grms . litharge helps . 20-35 0.6-0.9 grms . litharge helps . Lead carbonate ,. 10-15 0.0-0.5 Iron pyrites , 30-45 0.3-0.8 Arsenical pyrites , Antimonial ores , Blende , Lead ...
Page 27
... galena ( sp . gr . 7-3 to 7 · 7 ) , and it may be formed artificially by melting together lead and sulphur in proper proportions , by reducing lead sulphate with any reducing agent , and by pre- cipitating any solution of a lead salt ...
... galena ( sp . gr . 7-3 to 7 · 7 ) , and it may be formed artificially by melting together lead and sulphur in proper proportions , by reducing lead sulphate with any reducing agent , and by pre- cipitating any solution of a lead salt ...
Page 28
... galena itself and lead matte are good con- ductors of electricity . With the sulphides of antimony and arsenic lead sulphide forms sulpho - salts , both simple and complex , many of which occur in nature as well marked mineral species ...
... galena itself and lead matte are good con- ductors of electricity . With the sulphides of antimony and arsenic lead sulphide forms sulpho - salts , both simple and complex , many of which occur in nature as well marked mineral species ...
Page 29
... Galena is only partially decomposed by fusion with copper , the reduced lead alloying with the unaltered part of the copper , while the CuS formed mixes with the unaltered galena . Zinc and tin also effect only a partial decomposition ...
... Galena is only partially decomposed by fusion with copper , the reduced lead alloying with the unaltered part of the copper , while the CuS formed mixes with the unaltered galena . Zinc and tin also effect only a partial decomposition ...
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Common terms and phrases
alloy amount antimony arsenic assay average blast furnace borax bottom brick Broken Hill bullion carbonate cast-iron cent charcoal charge CHARLES GRIFFIN coal coke concentrated consumption containing cooling copper cost crucible crust cupellation desilverisation dross Engineers EXETER STREET feet Flintshire flue flue-dust flux Freiberg fuel fume fusible galena gases gold grey slag hearth Hofman inches iron jackets Lautenthal lead and silver lead sulphide Leadville lime liquation litharge matte melting metal Metallurgy Metallurgy of Lead method mixture molten ordinary oxide oxidised Parkes process pipe plates Port Pirie practice produced proportion pyrites quantity reaction reduced residues reverberatory reverberatory furnace roasting sample Schnabel scorifier separate shown in Fig silicates silver contents SiO2 skimmings slag smelting softening furnace speiss sulphate sulphide Table tapped temperature tons Trans treated tuyeres volatilisation volatilisation loss weight work-lead zinc
Popular passages
Page 85 - The arguments for and against " sintering " and " slagging " respectively have been already stated in this chapter, and need not be repeated here. Suffice it to say that the...