The Metallurgy of Lead & Silver: LeadGriffin, 1899 - Lead |
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Page vii
... practice , the ground has been so well covered by the recent works of Hofman and Schnabel , that little has been attempted beyond condensing the information contained in the above works , supplementing it from other contemporary sources ...
... practice , the ground has been so well covered by the recent works of Hofman and Schnabel , that little has been attempted beyond condensing the information contained in the above works , supplementing it from other contemporary sources ...
Page xi
... PRACTICE. PAGE 108 109 Introductory ,. Objects of Blast Furnace Smelt- ing , PAGE Lead Silicate , 124 Sulphide , 124 Sulphate , 124 Requirements of the Ore Charge , Slag , 110 Ferric Oxide and Magnetic 110 • Oxide , 127 Fluxes , 111 ...
... PRACTICE. PAGE 108 109 Introductory ,. Objects of Blast Furnace Smelt- ing , PAGE Lead Silicate , 124 Sulphide , 124 Sulphate , 124 Requirements of the Ore Charge , Slag , 110 Ferric Oxide and Magnetic 110 • Oxide , 127 Fluxes , 111 ...
Page xii
Henry Francis Collins. CHAPTER IX . - BLAST FURNACE LEAD SMELTING - PRACTICE . CHAPTER X. - BLAST FURNACE LEAD SMELTING - PRODUCTS . 197 3 . 201 4 . CHAPTER XI . - BLAST FURNACE LEAD SMELTING - EXAMPLES . CHAPTER XII . - FLUE - DUST ...
Henry Francis Collins. CHAPTER IX . - BLAST FURNACE LEAD SMELTING - PRACTICE . CHAPTER X. - BLAST FURNACE LEAD SMELTING - PRODUCTS . 197 3 . 201 4 . CHAPTER XI . - BLAST FURNACE LEAD SMELTING - EXAMPLES . CHAPTER XII . - FLUE - DUST ...
Page 8
... practice they frequently agree within 1 centigramme on the button ( = 0.2 per cent . ) . In spite of this agreement , however , and of the fact that lead ores are always purchased on the dry assay , the process is not accurate ; for ...
... practice they frequently agree within 1 centigramme on the button ( = 0.2 per cent . ) . In spite of this agreement , however , and of the fact that lead ores are always purchased on the dry assay , the process is not accurate ; for ...
Page 19
... practice the differences in commercial gold assays are much larger in proportion , owing , no doubt , to errors of manipulation and to the smaller quantity of metal operated upon . Furman § found losses in cupelling amounting to from 1 ...
... practice the differences in commercial gold assays are much larger in proportion , owing , no doubt , to errors of manipulation and to the smaller quantity of metal operated upon . Furman § found losses in cupelling amounting to from 1 ...
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Common terms and phrases
alloy amount antimony arsenic assay average blast furnace bottom brick Broken Hill bullion carbon cast-iron cent charge CHARLES GRIFFIN coal coke concentrates consumption containing cooling copper cost crucible crust cupellation desilverisation doors dross dust Engineers EXETER STREET feet firebrick Flintshire flue flue-dust flux Freiberg fuel fume fusible fusion galena gases gold grey slag hearth Hofman inches iron jackets labour Lautenthal lead and silver lead sulphide Leadville lime liquation litharge matte melting metal Metallurgy Metallurgy of Lead method mixture molten oxide oxidised Parkes process pipe plates Port Pirie practice produced proportion pyrites quantity rabble reaction reduced residues reverberatory reverberatory furnace roasting sample Schnabel scorifier separate shown in Figs silicates silver contents sintering 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...