A Practical Treatise on Metallurgy: Adapted from the Last German Edition of Prof. Kerl's Metallurgy, Volúmenes1-2Longmans, Green, and Company, 1868 |
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Página 7
... ; in consequence of this , the lead and Traité de Métallurgie , tom . ii . Métallurgie du Plomb et de l'Argent , 1860 , p . 4 . other products obtained from smelting cupriferous galena will be also PREPARATION OF THe ore . 7 ་
... ; in consequence of this , the lead and Traité de Métallurgie , tom . ii . Métallurgie du Plomb et de l'Argent , 1860 , p . 4 . other products obtained from smelting cupriferous galena will be also PREPARATION OF THe ore . 7 ་
Página 8
... obtained from smelting cupriferous galena will be also cupriferous ; and as in most cases they also contain silver , these metals must be extracted by separate processes . Iron Pyrites is also somewhat difficult to separate , but it ...
... obtained from smelting cupriferous galena will be also cupriferous ; and as in most cases they also contain silver , these metals must be extracted by separate processes . Iron Pyrites is also somewhat difficult to separate , but it ...
Página 10
... obtained by mixing coal with the residues , which are rich in oxide . This process is adopted at Bleiberg in Carinthia , Holzappel , Graubündten , and in Spain . The English Process is employed for calcareous ores rich in lead ; upon ...
... obtained by mixing coal with the residues , which are rich in oxide . This process is adopted at Bleiberg in Carinthia , Holzappel , Graubündten , and in Spain . The English Process is employed for calcareous ores rich in lead ; upon ...
Página 21
... obtained are usually poor in lead and rich in silver ( if present in the original ore ) , and the lead in the slags is found in the state of sulphide of lead . This is , therefore , an appropriate mode of treatment for galena containing ...
... obtained are usually poor in lead and rich in silver ( if present in the original ore ) , and the lead in the slags is found in the state of sulphide of lead . This is , therefore , an appropriate mode of treatment for galena containing ...
Página 25
... obtained at the lower temperature ( virgin lead ) is allowed to run at once on the inclined hearth , out of the furnace , in order to lessen the loss by volatilisation ; this lead is of great purity . By continually stirring up the ...
... obtained at the lower temperature ( virgin lead ) is allowed to run at once on the inclined hearth , out of the furnace , in order to lessen the loss by volatilisation ; this lead is of great purity . By continually stirring up the ...
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Términos y frases comunes
24 hours Altenau amalgam amount of silver antimony argentiferous arsenic baryta bismuth black copper blast calcined cent of copper cent of lead cent of silver charcoal charge chiefly clay coal cobalt coke condensation copper matt crucible cubic feet cupelling cupola furnaces cwts decomposed desilverised dross extraction flue fluxes formation formed Freiberg fuel furnace ends fused galena gold hearth heated impure inches iron pyrites Lautenthal lead containing lead matt lime liquation litharge loss of lead loss of metal loss of silver mercury metre mixed mixture muffles nickel oxide oxide of lead oxidised Pattinson's process precipitated production quantity quartz raw lead raw matt reduced refined residues resulting reverberatory furnaces rich lead roasting mass roasting process schlich silica silver per cwt slags smelting process sodium sodium amalgam spar speiss sulphate of lead sulphide sulphuric acid sump temperature treated tuyere u. h. Ztg Upper Hartz volatilisation whilst yield zinc blende