The Metallurgy of Lead & Silver: LeadGriffin, 1899 - Lead |
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Page 27
... gases , and part condensing to form the crystals and crusts of sublimed galena , which are of such common occurrence in the upper parts of lead furnaces . * Roscoe and Schorlemmer , 1892 , vol . ii . , pt . I. , p . 282 . + Comptes ...
... gases , and part condensing to form the crystals and crusts of sublimed galena , which are of such common occurrence in the upper parts of lead furnaces . * Roscoe and Schorlemmer , 1892 , vol . ii . , pt . I. , p . 282 . + Comptes ...
Page 30
... gases , and supposes the existence of a body to which he assigns the formula PbS . SO2 , from which the PbS crystallises out on cooling . He supposes the principal reaction which takes place on heating together PbS and PbSO , to be the ...
... gases , and supposes the existence of a body to which he assigns the formula PbS . SO2 , from which the PbS crystallises out on cooling . He supposes the principal reaction which takes place on heating together PbS and PbSO , to be the ...
Page 31
... gases as probably a case of mere solution in a gas ; and with regard to the proposed " new metallurgy of lead , " points out the impracticability of the process , especially as regards the condensation of the enor- mous amount of lead ...
... gases as probably a case of mere solution in a gas ; and with regard to the proposed " new metallurgy of lead , " points out the impracticability of the process , especially as regards the condensation of the enor- mous amount of lead ...
Page 51
... gases escape into a second chamber , E , the function of which is said to be the checking and regulation of the draught , f the exit flue , and G the chimney . The fire door is at h , and the working door at j ; in front of the latter ...
... gases escape into a second chamber , E , the function of which is said to be the checking and regulation of the draught , f the exit flue , and G the chimney . The fire door is at h , and the working door at j ; in front of the latter ...
Page 67
... gases first through sheet - iron cooling pipes and then through a series of woollen bags , in which practically the whole of the fume is deposited as a fine blue powder . The arrangement of the bag and of the bag house is similar to ...
... gases first through sheet - iron cooling pipes and then through a series of woollen bags , in which practically the whole of the fume is deposited as a fine blue powder . The arrangement of the bag and of the bag house is similar to ...
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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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