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 vi
... metals Copper and Iron , the most important as regards English Metallurgical industry , and which have contributed most to ... Metal- lurgical operations , we have not failed to bestow due con- sideration on the processes carried out in ...
... metals Copper and Iron , the most important as regards English Metallurgical industry , and which have contributed most to ... Metal- lurgical operations , we have not failed to bestow due con- sideration on the processes carried out in ...
Página 9
... metal ; they also frequently exert a very favourable influence upon the melting process : indeed , in some cases , when galena does not already contain them , they should be added . Quartz is often found accompanying galena ; and this ...
... metal ; they also frequently exert a very favourable influence upon the melting process : indeed , in some cases , when galena does not already contain them , they should be added . Quartz is often found accompanying galena ; and this ...
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... metal ; it admits of the use of raw fuel , and of the process being watched through- out . It occasions but a small residue , and requires neither blast machines nor expensive fluxes . On the other hand , this process is only adapted ...
... metal ; it admits of the use of raw fuel , and of the process being watched through- out . It occasions but a small residue , and requires neither blast machines nor expensive fluxes . On the other hand , this process is only adapted ...
Página 14
... metal , fuel , and time , yet if the ore is worked in reverberatory furnaces , it is still possible that local circumstances may recommend this process likewise for ores which are rich in silica . The different reverberatory processes ...
... metal , fuel , and time , yet if the ore is worked in reverberatory furnaces , it is still possible that local circumstances may recommend this process likewise for ores which are rich in silica . The different reverberatory processes ...
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... metal ; there will also be less loss by volatilisation , and the foreign metals will be sooner oxidised and volatilised . Care must be taken that most lead is extracted during the first reaction of the oxides upon the sulphates and ...
... metal ; there will also be less loss by volatilisation , and the foreign metals will be sooner oxidised and volatilised . Care must be taken that most lead is extracted during the first reaction of the oxides upon the sulphates and ...
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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