The Metallurgy of Lead & Silver: LeadGriffin, 1899 - Lead |
From inside the book
Results 1-5 of 100
Page x
... Reduction Method , 39 CHAPTER IV . - LEAD SMELTING IN REVERBERATORIES , The Flowing or Cornish Process , 55 45 Comparison of the Various Pro- Bye - Products and their Treat- 50 Suggested Improvements in the Roast Reaction Process ...
... Reduction Method , 39 CHAPTER IV . - LEAD SMELTING IN REVERBERATORIES , The Flowing or Cornish Process , 55 45 Comparison of the Various Pro- Bye - Products and their Treat- 50 Suggested Improvements in the Roast Reaction Process ...
Page xi
... Reduction and Reducing Calcium Sulphate , 130 Agents ,. 121 Barytes , 130 Carbon , 121 Fluorspar , 131 Carbonic Oxide , 121 Zinc Oxide , 131 ponents , Conditions favourable to Reduction , " Tuyere Ratio " and Ratio " and " Tuyere ...
... Reduction and Reducing Calcium Sulphate , 130 Agents ,. 121 Barytes , 130 Carbon , 121 Fluorspar , 131 Carbonic Oxide , 121 Zinc Oxide , 131 ponents , Conditions favourable to Reduction , " Tuyere Ratio " and Ratio " and " Tuyere ...
Page 3
... reduction in size by stages of only the portion selected at each preceding stage , the rejected bulk of the ore thus ... reduced in size at each stage and that of the largest individual piece ; and where accurate results are required ...
... reduction in size by stages of only the portion selected at each preceding stage , the rejected bulk of the ore thus ... reduced in size at each stage and that of the largest individual piece ; and where accurate results are required ...
Page 5
... reduced sample . The process is repeated until the sample is small enough to Fig . 2. - Split Shovel , require ... reduce it to about 10 mesh size ( or smaller in the case of very rich ores ) , and is then again quartered or split ...
... reduced sample . The process is repeated until the sample is small enough to Fig . 2. - Split Shovel , require ... reduce it to about 10 mesh size ( or smaller in the case of very rich ores ) , and is then again quartered or split ...
Page 6
Henry Francis Collins. reduction . Sometimes this is done by hand , more commonly by a sample grinder of the coffee ... reduced by quartering , or by the use of the " sampling tin " ( which is only a split - shovel on a very small scale ) ...
Henry Francis Collins. reduction . Sometimes this is done by hand , more commonly by a sample grinder of the coffee ... reduced by quartering , or by the use of the " sampling tin " ( which is only a split - shovel on a very small scale ) ...
Other editions - View all
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...